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144 Sentences With "brazed"

How to use brazed in a sentence? Find typical usage patterns (collocations)/phrases/context for "brazed" and check conjugation/comparative form for "brazed". Mastering all the usages of "brazed" from sentence examples published by news publications.

Granges is also exploring business opportunities for advanced aluminum materials for brazed automotive heat exchangers in North America, it said.
The venture aimed to combine Granges' and Mitsubishi Aluminum's expertise in aluminum rolling and establish a new U.S. production facility to manufacture advanced aluminum materials for brazed automotive heat exchangers for the North American and Mexican markets.
In some cases, the aluminum parts can be clad with a different material and brazed with a more common technique and filler material. Brazed joints require overlapping of parts. The amount of overlap can greatly affect the strength of the joint.
The design also features pinned and brazed gusset joints as opposed to conventionally welded joint clusters.
Hitachi-built end car with "wedge" nose design. The body was constructed of brazed aluminium honeycomb panels.
Ibram Lassaw (1913–2003) was a Russian-American sculptor, known for non- objective construction in brazed metals.
The outer structure was made of stainless steel brazed-honeycomb brazed between steel alloy face sheets. It varied in thickness from 0.5 inch to 2.5 inches. Part of the area between the inner and outer shells was filled with a layer of fiberglass insulation as additional heat protection.
Two CANDU fuel bundles: Each about 50 cm in length and 10 cm in diameter. Notice the small appendages on the fuel clad surfaces Beryllium is also used in fuel fabrication for CANDU reactors. The fuel elements have small appendages that are resistance brazed to the fuel cladding using an induction brazing process with Be as the braze filler material. Bearing pads are brazed in place to prevent fuel bundle to pressure tube contact, and inter-element spacer pads are brazed on to prevent element to element contact.
"Joining Dissimilar Metals" . Deringer-Ney, April 29, 2014 In general, brazing also produces less thermal distortion than welding due to the uniform heating of a brazed piece. Complex and multi-part assemblies can be brazed cost-effectively. Welded joints must sometimes be ground flush, a costly secondary operation that brazing does not require because it produces a clean joint.
Another disadvantage is that brazed joints can be damaged under high service temperatures. Brazed joints require a high degree of base-metal cleanliness when done in an industrial setting. Some brazing applications require the use of adequate fluxing agents to control cleanliness. The joint color is often different from that of the base metal, creating an aesthetic disadvantage.
American Carbide Tools produces single-point brazed carbide tipped tools as well as PCD (polycrystalline diamond) and CBN (cubic boron nitride) inserts and tools.
Commonly, imperfections need to be cut out, and the metal re-soldered. Ultimately the brazed sheets do not display the ductility and work-ability of diffusion bonded material.
Musical instruments, especially brass and woodwind instruments, use a combination of soldering and brazing in their assembly. Brass bodies are often soldered together, while keywork and braces are most often brazed.
The heads of the rivets are frequently brazed or soldered to prevent tank leaks. Ends can then be hemmed in and soldered, or flanged and brazed (and/or sealed with an epoxy-type sealant) or the ends can be flanged and then welded. Once the soldering, brazing or welding is complete, the fuel tank is leak-tested. In the aerospace industry, the use of Fuel Tank Sealants is a common application for high temperature integral fuel tanks.
A variety of small features—bottle cage mounting holes, shifter bosses, cable stops, pump pegs, cable guides, etc.—are described as braze-ons because they were originally, and sometimes still are, brazed on.
The rear is firmly fixed to the bottom triple clamp (usually brazed or welded). A short leading link holds the wheel and the forward leg which actuates the springs (usually mounted on the triple clamp).
Depending on the physical structure of the material, cermets can also be metal matrix composites, but cermets are usually less than 20% metal by volume. Cermets are used in the manufacture of resistors (especially potentiometers), capacitors, and other electronic components which may experience high temperature. Cermets are used instead of tungsten carbide in saws and other brazed tools due to their superior wear and corrosion properties. Titanium nitride (TiN), titanium carbonitride (TiCN), titanium carbide (TiC) and similar can be brazed like tungsten carbide if properly prepared, however they require special handling during grinding.
Vacuum brazed diamond saws are manufactured by brazing synthetic diamond particles to the outside edge of the circular saw blade in a vacuum brazing furnace. All of the diamond particles are on the exterior cutting edge of the blade, with no metal-diamond mixture. Depending on the manufacturer's recommended blade application, vacuum brazed blades will cut a wide variety of material including concrete, masonry, steel, various irons, plastic, tile, wood and glass. Finer synthetic diamond grits will reduce the chipping of tile and burring of steel and provide a smoother finish.
There are many types of permanently bonded plate heat exchangers, such as dip-brazed, vacuum- brazed, and welded plate varieties, and they are often specified for closed- loop applications such as refrigeration. Plate heat exchangers also differ in the types of plates that are used, and in the configurations of those plates. Some plates may be stamped with "chevron", dimpled, or other patterns, where others may have machined fins and/or grooves. When compared to shell and tube exchangers, the stacked-plate arrangement typically has lower volume and cost.
The steel core can be quenched and processed with other heat treatments, so its hardness and strength can be high, meaning that the blade can be used in high-load and high-intensity cutting processes with high cutting efficiency and a smaller degree of deformation. Silver brazed diamond blades' diamond segments are brazed to the steel core using a silver solder. These blades can only be used in wet cuttings. If they are used in dry cuttings, the silver solder may melt and the segments can break from the steel core and become a serious safety hazard.
The Bodeo was considered simple and robust. Due to the revolver being produced by a multitude of manufacturers, the quality of the weapon varied greatly. Frames were made from a wide variety of materials ranging from brass to brazed copper plates.Kinard, Jeff.
Brazing has the advantage of producing less thermal stresses than welding, and brazed assemblies tend to be more ductile than weldments because alloying elements can not segregate and precipitate. Brazing techniques include, flame brazing, resistance brazing, furnace brazing, diffusion brazing, inductive brazing and vacuum brazing.
The Atlas used on this flight had been delivered to the Cape in 1971 and kept in storage since then, an unusually long time. In the aftermath of the accident, NASA inspected their inventory of Atlas vehicles and found several more improperly brazed pipes which needed replacement.
Automobile radiator joined with brazing. Aluminum can be brazed or soldered to almost any material including concrete, ceramics, or wood. Brazing and soldering can be applied manually or through an automated technique. Manual aluminum brazing can be difficult due to no observable color change before melting.
Another way caulkins are applied is for borium to be brazed onto the surface of the shoe. Usually borium is placed at the heels and toe, either in small knobs for maximum grip, or in small rough patches for extra traction and to prevent wear on the shoe.
The forward docking hatch was mounted at the top of the docking tunnel. It was in diameter and weighed . It was constructed from two machined rings that were weld-joined to a brazed honeycomb panel. The exterior side was covered with a of insulation and a layer of aluminum foil.
These early military M20 models were also fitted with a long spiked prop stand on the rear nearside pivoted from a lug brazed on to the rear frame tube. Factory ledgers show that BSA exported K-M20 models to Sweden, South Africa and India, as well as civilian dealers and distributors.
Carbon can negatively influence some steels. Care must be taken to avoid galvanic corrosion between the braze and the base metal, and especially between dissimilar base metals being brazed together. Formation of brittle intermetallic compounds on the alloy interface can cause joint failure. This is discussed more in-depth with solders.
Brazing has many advantages over other metal- joining techniques, such as welding. Since brazing does not melt the base metal of the joint, it allows much tighter control over tolerances and produces a clean joint without the need for secondary finishing. Additionally, dissimilar metals and non-metals (i.e. metalized ceramics) can be brazed.
Conversion sets can give the would-be serious tricyclist a taste of triking before making the final decision to purchase a complete tricycle. Conversion sets can also supplied ready to be brazed onto a lightweight, steel bicycle frame to form a complete trike. Some trike conversion sets can also be used with recumbent bicycles to form recumbent trikes.
NAA proposed building their design out of sandwich panels, with each panel consisting of two thin sheets of stainless steel brazed to opposite faces of a honeycomb-shaped foil core. Expensive titanium would be used only in high- temperature areas like the leading edge of the horizontal stabilizer, and the nose.B-70 Aircraft Study, Vol. III., pp.
The LB-3 used new span wings made in the same fashion as Staib's LB-1 with brazed steel spring wing ribs with Taylorcraft airfoil sections. The aircraft cruised at and operated on the airshow circuit for two years. Cliff Baker operated the aircraft one more season, suffering a broken back after a high-speed incident.
These models used air-cooled or liquid-cooled variations of motorcycle engines. The engine was placed ahead of the axis of the front wheels in a chassis made of steel tubes brazed into cast lugs. After the First World War, the company introduced an easily changed rear wheel, which customers had been seeking for several years.Boddy, p.1412.
Free machining steel costs 15 to 20% more than standard steel, but this higher cost is offset by increased machining speeds, larger cuts, and longer tool life.Degarmo, p. 117. The disadvantages of free machining steel are: ductility is decreased; impact resistance is reduced; copper-based brazed joints suffer from embrittlement with bismuth free machining grades; shrink fits are not as strong.Degarmo, p. 118.
The LB-1 was a single engine, open cockpit biplane with conventional landing gear. The low-cost construction included using brazed steel bedspring wire for wing-ribs, and bed-sheet muslin covering. The airfoil was patterned on a Taylorcraft BC-12D. The aircraft used three fuel tanks: one in the headrest, one in the baggage compartment and one against the firewall.
Cutting tools are often designed with inserts or replaceable tips (tipped tools). In these, the cutting edge consists of a separate piece of material, either brazed, welded or clamped on to the tool body. Common materials for tips include cemented carbide, polycrystalline diamond, and cubic boron nitride. Tools using inserts include milling cutters (endmills, fly cutters), tool bits, and saw blades.
Duckfoot pistol made during the reign of George III. The Nock gun resembled a conventional flintlock musket with seven barrels hexagonally brazed around a central barrel. All seven .46 caliber (12 mm) barrels were connected to the single flintlock pan in a manner intended to produce simultaneous discharge through row ignition, but one or more barrels frequently failed to fire.
The municipality is known for its embroidery, tanneries, basket-weaving, carpentry and cheesemaking. Sabrosa, which falls in the Trás-os-Montes culture, has many examples of traditional gastronomy, which includes oven-brazed goat in rice (), the Cozido à portuguesa, the bola de carne (), the typical embutidos, pão- de-ló, cavacas altas and cavaquinhas, in addition to the rich tradition of Douro and Porto wines.
It is a manually operated bolt action with two forward dual-opposed lugs. The bolt face is recessed, fully enclosing the base of the cartridge, The extractor is a C-clip sitting within the bolt face. The ejector is a plunger on the bolt face actuated by a coil spring. The bolt is of 3-piece construction, brazed together (head, body and bolt handle).
These were built around moulds, twisting the metal into place with pliers, before severing it with wirecutters. Joins were soldered or brazed (though in some pieces, the wire was woven). In Web (2002), copper pieces were sewn together using wire. Her partner Huon Hooke described her at work in the studio: > She is sitting cross-legged on the floor, on a piece of foam rubber.
Customers could determine if they preferred lugs or fillet brazed frames as well as practically any other detail. This included part specifications and paint, and only complete bicycles were sold. Many tandems and racing bicycles were made for and branded by the financing, sometimes competing companies. The company celebrated its 100th birthday in 2003 by offering 100 bicycles numbered on the steerer tube badge.
60–61 Road test Accessed and added 2014-09-24 The gearbox was also a novel Velocette design with a constant mesh close ratio unit that could be maintained relatively easily while still in place. Simply designed with single top and down tubes, the Venom's heavy brazed-lug frame (which had clear origins in bicycle manufacture) was well proven for its handling capability.Motorcycle Mechanics, April 1966. pp.
The track is laid with 70-lb/yard (35 kg/m) rails on oak ties, obtained largely from the neighboring country. The entire railroad was bonded with brazed bonds, the work being done by the Electric Railway Improvement Company, of Cleveland, Ohio. Sidings varied in length from to and were located at about 3-mile intervals. All passing sidings were double end; others are stub end.
Design changes have generally been introduced so they can be retrofitted on earlier models. An exception is that in 2004, the frame was lengthened to provide a longer wheelbase. ;Handlebar stem hinge: switched to a jig-brazed system ;Handle-bar clip: reinforced wire clip providing increasing gripping to secure the handle- bar stem when folded down. ;Handlebars: Two alternative handlebar designs; the original handlebar being redesignated as the 'M' type.
Jeffery was an inventor and bicycle manufacturer with his partner, R. Philip Gormully, who built and sold Rambler bicycles through his company, Gormully & Jeffery Mfg. Co., in Chicago from 1878 to 1900. The Rambler was still a proud piece of machinery when low prices took precedence over high quality. Its body featured flared metal tubing for extra strength at the joints, which were brazed by immersion in molten brass.
Its advantages as a roofing material included its ability to be brazed, welded, or soldered in place to provide a watertight, continuous cover. Monel was popular during the Art Deco periods. During World War II large quantities of nickel and copper were diverted to the war effort, and the supply of Monel was greatly reduced. Following the war, stainless steel and aluminium replaced Monel because of lower production costs.
Wayne Chabre's Grasshopper, dedicated in 1988, depicts an insect of the same name, mounted in a head-down position on the exterior brick wall of a building at 455 Court Street Northeast. The brazed copper sculpture measures x x . It was surveyed and considered "treatment needed" by the Smithsonian Institution's "Save Outdoor Sculpture!" program in August 1993, and was administered by the City of Salem's Community Development department at that time.
The oxide disruption and removal involves cavitation effects between the molten solder and the base metal surface. A common application of ultrasound fluxing is in tinning of passive parts (active parts do not cope well with the mechanical stresses involved); even aluminium can be tinned this way. The parts can then be soldered or brazed conventionally. Mechanical rubbing of a heated surface with molten solder can be used for coating the surface.
U.S. Air Force-NASA Technology Demonstrator Engine for Future Launch Vehicles Successfully Fired During Initial Full Duration Test. The Soviets, however, perfected the metallurgy behind this method. The nozzle was constructed from corrugated metal, brazed to an outer and inner lining, giving a simple, light, but strong structure. In addition, since the NK-33 uses LOX and RP-1 as propellants, which have similar densities, a single rotating shaft could be used for both turbopumps.
Heel calks on a horseshoe Screw-in-calks used on a show jumper. Calks (identified by the letter "C" on diagram) consist of spur-point and a shank to form an antislipping device. A caulkin (or caulk; US spelling "calkin" or "calk") from the Latin calx (the heel) is a blunt projection on a horseshoe or oxshoe that is often forged, welded or brazed onto the shoe."Know Foot Know Horse", knowfootknowhorse.
In through-mounting, the waveguide tube passes all the way through to the front face of the flange. Initially the tube is allowed to protrude slightly beyond the face of the flange, then after the two pieces have been soldered or brazed together, the end of the tube is machined down so that it is perfectly level with the face. This type of construction can be seen in figures 1, 4 and 5.
These lugs do not require painting, but must be brazed using silver filler rod, which necessitates much better heat control and better fit of lug to tube. Cast lugs are found on higher quality production bikes, and virtually all custom bikes now made; stamped lugs are found on less expensive production bikes, and older custom bikes. Lugs are usually stamped with a letter or symbol code identifying the maker, and possibly the angle.
It is more labor-intensive, and consequently is less likely to be used for production frames. As with TIG welding, Fillet frame tubes are precisely notched or mitered and then a fillet of brass is brazed onto the joint, similar to the lugged construction process. A fillet braze frame can achieve more aesthetic unity (smooth curved appearance) than a welded frame. Among steel frames, using butted tubing reduces weight and increases cost.
Treating with an oiled coating enhances the protection offered by the bluing. This process is also the only process safely used to re-blue vintage shotguns. Many double-barrelled shotguns are soft soldered (lead) or silver brazed together and many of the parts are attached by that method also. The higher temperatures of the other processes as well as their caustic nature weakens the soldered joints and make the gun hazardous to use.
Pretinning gets around the problem that hard metals are difficult to wet. Brazed hard metal joints are typically two to seven mils thick. The braze alloy joins the materials and compensates for the difference in their expansion rates. It also provides a cushion between the hard carbide tip and the hard steel, which softens impact and prevents tip loss and damage—much as a vehicle's suspension helps prevent damage to the tires and the vehicle.
A mandrel of this type generally consists of a cylinder, threaded on one end, with a washer brazed onto the threaded end and an accompanying screw and second washer used to clamp the circular saw blade, sanding media, or other rotary tool onto the mandrel. While most mandrels are driven by direct connection to an electric motor or engine, other mandrels are driven by attachment to a bearing-supported, pulley-driven shaft.
The main grade of copper used for electrical applications is electrolytic-tough pitch (ETP) copper (CW004A or ASTM designation C11040). This copper is at least 99.90% pure and has an electrical conductivity of at least 101% IACS. ETP copper contains a small percentage of oxygen (0.02 to 0.04%). If high conductivity copper needs to be welded or brazed or used in a reducing atmosphere, then oxygen-free copper (CW008A or ASTM designation C10100) may be used.
The seam is brazed, using a torch and smoothed using a hammer or file. A draw bench or arbor press equipped with expandable lead plug is used to shape and smooth the bell and bell neck over a mandrel. A lathe is used to spin the bell head and to form a bead at the edge of bell head. Previously shaped bell necks are annealed, using a hand torch to soften the metal for further bending.
"Other orders are said to have come from England, Switzerland and Germany. For anyone interested, Münch's address is 6361 Nieder-Florstadt, Friedberg (Hessen) West Germany". Accessed and added 2014-07-08 Münch used a 996 cc air-cooled NSU Motorenwerke engine having a chain-driven single overhead camshaft housed in a specially-built, brazed-up steel tube frame based on Norton Featherbed principles. Customers could choose from one, two or four carburetors, with options for 43 or 52 bhp.
Developing and supplying innovative and energy-efficient equipment and systems serving the commercial refrigeration, food service & beverage equipment and heating & cooling markets. This segment incorporates Belvac, who develop creative and flexible solutions directly for beverage container manufacturers and brand owners around the world. Dover Food Retail who design and manufacturing commercial glass refrigerator and freezer doors, refrigeration equipment, lighting systems and display equipment. SWEP who design and manufacture brazed plate heat exchangers for HVAC, refrigeration and other industrial markets.
Torch brazing is by far the most common method of mechanized brazing in use. It is best used in small production volumes or in specialized operations, and in some countries, it accounts for a majority of the brazing taking place. There are three main categories of torch brazing in use: manual, machine, and automatic torch brazing. Manual torch brazing is a procedure where the heat is applied using a gas flame placed on or near the joint being brazed.
There are four main types of furnaces used in brazing operations: batch type; continuous; retort with controlled atmosphere; and vacuum. A batch type furnace has relatively low initial equipment costs, and can heat each part load separately. It can turned on and off at will, which reduces operating expenses when it's not in use. These furnaces are suited to medium to large volume production, and offer a large degree of flexibility in type of parts that can be brazed.
Dip brazing is especially suited for brazing aluminium because air is excluded, thus preventing the formation of oxides. The parts to be joined are fixtured and the brazing compound applied to the mating surfaces, typically in slurry form. Then the assemblies are dipped into a bath of molten salt (typically NaCl, KCl and other compounds), which functions as both heat transfer medium and flux. Many dip brazed parts are used in heat transfer applications for the aerospace industry.
However, to aid the engine's operation Rocketdyne engineers varied the angle of the nozzle walls from the theoretical optimum for thrust, reducing it near the exit. This raises the pressure just around the rim to an absolute pressure between , and prevents flow separation. The inner part of the flow is at much lower pressure, around or less. The inner surface of each nozzle is cooled by liquid hydrogen flowing through brazed stainless steel tube wall coolant passages.
Soldering is used in plumbing, electronics, and metalwork from flashing to jewellery and musical instruments. Soldering provides reasonably permanent but reversible connections between copper pipes in plumbing systems as well as joints in sheet metal objects such as food cans, roof flashing, rain gutters and automobile radiators. Jewelry components, machine tools and some refrigeration and plumbing components are often assembled and repaired by the higher temperature silver soldering process. Small mechanical parts are often soldered or brazed as well.
He is buried in East Sheen Cemetery in East Sheen, a suburb of London. The assistant who fired the gun, Jack Grossman, appeared on the UK TV show The Paul Daniels Magic Show, broadcast on November 6, 1982, where he assisted magician Paul Daniels to successfully recreate the trick. During the inquest, Olive "Dot" Path explained the nature of the Chung Ling Soo's trick. The muskets Soo used in his act were brazed with extra steel barrels.
In December, 1975, Richard (Dick) Burke and Bevil Hogg established Trek Bicycle as a wholly owned subsidiary of Roth Corporation, a Milwaukee-based appliance distributor. In early 1976, with a payroll of five, Trek started manufacturing steel touring frames in Waterloo, Wisconsin, taking aim at the mid to high-end market dominated by Japanese and Italian made models. Trek built nearly 900 custom hand-brazed framesets that first year, each selling for just under $200. Later that same year Trek Bicycle was incorporated.
These alloys are also primary selections for fuel, lubricating oil, and hydraulic oil tanks, piping, and instrument tubing and brackets, especially where welding is required. Alloys 3003, 6061, and 6951 are utilized extensively in brazed heat exchangers and hydraulic accessories. Recently developed alloys, such as 5086, 5454, 5456, 6070, and the new weldable aluminum-magnesium-zinc alloys, offer strength advantages over those previously mentioned. Sheet assembly of light aircraft is accomplished predominantly with rivets of alloys 2017-T4, 2117-T4, or 2024-T4.
The original technology, patented by Printronix in 1974, has the top of a stiff leaf spring held back by a magnetic pole-piece. A tungsten carbide hammer is brazed to the center-top of the leaf spring. When it produces a dot, a coil (electromagnet) wrapped around the pole-piece neutralizes the magnetic field. The leaf spring snaps the hammer away from the pole-piece, pushing the hammer out against a ribbon and placing an image of a dot onto the paper.
The high heat transfer efficiency for such a small physical size has increased the domestic hot water (DHW) flowrate of combination boilers. The small plate heat exchanger has made a great impact in domestic heating and hot-water. Larger commercial versions use gaskets between the plates, whereas smaller versions tend to be brazed. The concept behind a heat exchanger is the use of pipes or other containment vessels to heat or cool one fluid by transferring heat between it and another fluid.
Automobile radiators are constructed of a pair of metal or plastic header tanks, linked by a core with many narrow passageways, giving a high surface area relative to volume. This core is usually made of stacked layers of metal sheet, pressed to form channels and soldered or brazed together. For many years radiators were made from brass or copper cores soldered to brass headers. Modern radiators have aluminum cores, and often save money and weight by using plastic headers with gaskets.
It consists of two sections. The slightly conical body is from a rolled sheet of copper alloy between 0.2 and 0.25 mm thick. It has been soldered lengthways with a "very skilfully brazed meander joint ... smoothed to a perfect finish", yet is "slightly rough" internally, indicating that (as might be expected in a ceremonial instrument) appearance was of greater value than acoustic performance. The bell is of a different, thinner material: an electrum-like alloy of gold, between 0.1 and 0.13 mm thick.
In the 1930s, Schwinn sponsored a bicycle racing team headed by Emil Wastyn, who designed the team bikes, and the company competed in six-day racing across the United States with riders such as Jerry Rodman and Russell Allen. In 1938, Frank W. Schwinn officially introduced the Paramount series. Developed from experiences gained in racing, Schwinn established Paramount as their answer to high-end, professional competition bicycles. The Paramount used high-strength chrome- molybdenum steel alloy tubing and expensive brass lug-brazed construction.
The three horizontally opposed, four-cylinder, overhead-valve engines that appeared at aircraft shows between October 1909-10 were E.N.V.'s only departure from their standard 90° V8 layout. Technical details are rather sparse, but the 1909 engine had steel cylinders and combined inlet/exhaust valves. The 30 hp 1910 engine had separate steel cylinder heads and barrels, screwed and brazed together. Inlet and exhaust valves were also separated, placed respectively below and above the cylinders and worked by push/pull rods and rockers.
In socket-mounting, the aperture in the front face of the flange matches the inside dimensions of the waveguide. At the back, the aperture is rabbeted to form a socket which fits onto the end of the waveguide tubing. The two pieces are soldered or brazed together to ensure an uninterrupted conducting path between the inside surface of the waveguide tube and the mouth of the flange. This type of construction can be seen in figure 2, and is shown diagramatically in figure 3\.
A direct exchange system requires only 15 to 40% of the length of tubing and half the diameter of drilled holes, and the drilling or excavation costs are therefore lower. Refrigerant loops are less tolerant of leaks than water loops because gas can leak out through smaller imperfections. This dictates the use of brazed copper tubing, even though the pressures are similar to water loops. The copper loop must be protected from corrosion in acidic soil through the use of a sacrificial anode or other cathodic protection.
Retort furnaces are often either used in a batch or semi-continuous versions. Vacuum furnaces is a relatively economical method of oxide prevention and is most often used to braze materials with very stable oxides (aluminum, titanium and zirconium) that cannot be brazed in atmosphere furnaces. Vacuum brazing is also used heavily with refractory materials and other exotic alloy combinations unsuited to atmosphere furnaces. Due to the absence of flux or a reducing atmosphere, the part cleanliness is critical when brazing in a vacuum.
One such capability is heat-treating or age-hardening the workpiece while performing a metal-joining process, all in a single furnace thermal cycle. Products that are most commonly vacuum-brazed include aluminum cold plates, plate-fin heat exchangers, and flat tube heat exchangers. Vacuum brazing is often conducted in a furnace; this means that several joints can be made at once because the whole workpiece reaches the brazing temperature. The heat is transferred using radiation, as many other methods cannot be used in a vacuum.
Another advantage is that the brazing can be coated or clad for protective purposes. Finally, brazing is easily adapted to mass production and it is easy to automate because the individual process parameters are less sensitive to variation. One of the main disadvantages is the lack of joint strength as compared to a welded joint due to the softer filler metals used. The strength of the brazed joint is likely to be less than that of the base but greater than the filler metal.
Today, in modern day, the phrase "to open the ball" has become a figure of speech for initiating an activity which will be subsequently continued by others. The term has been used in descriptions of battle scenes.From Rudyard Kipling's "The Drums Of The Fore And Aft": Over that pock-marked ground the Regiment had to pass, and it opened the ball with a general and profound courtesy to the piping pickets; ducking in perfect time, as though it had been brazed on a rod.
The Paramount used high-strength chrome-molybdenum steel alloy tubing and expensive brass lug-brazed construction. During the next twenty years, most of the Paramount bikes would be built in limited numbers at a small frame shop headed by Wastyn, in spite of Schwinn's continued efforts to bring all frame production into the factory. On 17 May 1941, Alfred Letourneur was able to beat the motor-paced world speed record on a bicycle, reaching on a Schwinn Paramount bicycle riding behind a car in Bakersfield, California.
On the next run, the bearings worked satisfactorily but the stresses were too great for the brazed impeller and it flew apart. A new one was made by milling from a solid block of aluminum. The next two runs with the new pump were a great disappointment; the instruments showed no significant flow or pressure rise. The problem was traced to the exit diffuser of the pump, which was too small and insufficiently cooled during the cool-down cycle so that it limited the flow.
As cleanliness during assembly is especially important, all operations are done under air-conditioned clean-room conditions. In this way the manufacturer can guarantee a constantly high quality of the interrupters and maximum possible ratings up to 100 kA according to IEC/IEEE 62271-37-013. Subassemblies of vacuum interrupters were initially assembled and brazed together in a hydrogen-atmosphere furnace. A tube connected to the interrupter's interior was used to evacuate the interrupter with an external vacuum pump while the interrupter was maintained at about .
An in-line four- cylinder side-valve, it had a bore and stroke of 60 x 75 mm. Redesignated the 'TMC' (for "Touring Motor Cycle"), the Wilkinson TMC was one of the top of the range motorcycles built before the First World War. It had no front brake, so relied on twin drum rear brakes which were pedal operated. The brazed lug tubular frame was fully sprung with quarter elliptic rear springs and 'girder' front forks with horizontal springs compressed through bell crank levers.
In 1985, borrowing technology from the aerospace industry, (and bike companies such as Alan and Vitus), Trek introduced its first bonded aluminum bike frame, the 2000. The introduction of bonded aluminum to Trek's production line proved very problematic for a company that had built itself on hand-brazed steel frames. Manufacturing ground to a halt as Trek worked to figure out how to build bonded frames in a production environment. A year later Trek followed up the success of the 2000 with a 3-tube carbon composite model, the 2500.
Braze-on cable stop on bottom of top tube that happens to be welded on. A braze-on is the name for any number of parts of a bicycle which have been permanently attached to the frame. The term "braze-on" comes from when these parts would have been brazed on to steel frame bicycles. Braze-ons continue to be so called even though they may be welded, glued, riveted, or moulded into the frame material, depending on the material itself and the connection method used elsewhere on the frame.
Black plastic cable guide on the bottom of a Trek 5000 bottom bracket shell Metal, braze-on cable guide on the top of a bottom bracket shell A cable guide is a fitting or part of a bicycle frame which guides a piece of bare inner bowden cable around a corner. Most multi-speed bicycles have cable guides to get the derailleur cables past the bottom bracket. Older derailleur bicycles used either brazed-on or clamp-on guides just above the bottom bracket, but newer bicycles have a guide under the bottom bracket.
Many devices are molded out of an epoxy plastic that provides adequate protection of the semiconductor devices, and mechanical strength to support the leads and handling of the package. Some devices, intended for high-reliability or aerospace or radiation environments, use ceramic packages, with metal lids that are brazed on after assembly, or a glass frit seal. All-metal packages are often used with high power (several watts or more) devices, since they conduct heat well and allow for easy assembly to a heat sink. Often the package forms one contact for the semiconductor device.
Direct exchange systems use copper because it is an excellent ground heat exchanger material and easy to manufacture. Copper tubing is strong and ductile; resistant to corrosion; has a very high thermal conductivity; and is available in many different diameters and in long coil lengths. Copper connections can be brazed, the tubing may be bent, and copper tubing is economically available. In addition, copper has a long history of use in air conditioning and refrigeration, and is the material of choice for potable water for water lines buried underground and in buildings.
Some disconnected facts for arrangement: The Efflux chamber of the engine was made of nickel tubes brazed together through which flowed kerosene down one tube and back up the adjacent tube via a manifold at the mouth of the chamber. After static firings, these chambers were checked by climbing inside the engine from beneath. The mouth was in diameter but that of the throat was smaller, which restricted access to the inspector. In addition, during firing, the inside of the chamber became coated with fine carbon, making inspection a filthy procedure.
Tellurium is usually added to copper to improve machinability ("free cutting"). ASTM specification B301 has 0.5% tellurium; at concentrations of up to 0.75% machinability is improved whilst electrical conductivity and hot working behavior is maintained. Mechanical properties are similar to tough pitch copper, whilst machinability is similar to brass - the alloy's hardnesses are increased by precipitation of copper telluride. Tellurium copper is not suited to welding though can be welded with gas shielded arc welding or resistance welding; it can be readily soft soldered, silver soldered, or brazed.
This is a very common and relatively successful construction method. A Forstner bit could bore the mounting hole for the hinge, but particle board and MDF are very abrasive materials, and steel cutting edges soon wear. A tungsten carbide cutter is needed, but the complex shape of a forstner bit is difficult to manufacture in carbide, so this special drill bit with a simpler shape is commonly used. It has cutting edges of tungsten carbide brazed to a steel body; a center spur keeps the bit from wandering.
Example of a non-filleted pole (left) and a filleted pole (right) welded together In mechanical engineering, a fillet is a rounding of an interior or exterior corner of a part design. An interior or exterior corner, with an angle or type of bevel, is called a "chamfer". Fillet geometry, when on an interior corner is a line of concave function, whereas a fillet on an exterior corner is a line of convex function (in these cases, fillets are typically referred to as rounds). Fillets commonly appear on welded, soldered, or brazed joints.
Seatposts should be periodically removed from the frame, cleaned, greased and refitted to prevent the seatpost seizing in the frame. This is particularly important with bikes which do not have mudguards (fenders) that are regularly ridden in wet conditions. Care should be taken not to overtighten the bolt or quick-release lever which clamps the post in the frame, especially where this acts on two brazed lugs rather than a separate clamp-on collar. Overtightening can bend or break the frame lugs or strip the threads in a separate collar.
Consequently, the diameter of wholly sintered diamond blades is not very large, normally not more than . Because it is participating in the sintering process, the steel core cannot be quenched, so the hardness and strength of the core are not very high. This means that these types of diamond blade may deform in high-load and high-intensity cutting processes and can exhibit low cutting efficiency. Silver brazed and laser welded diamond blades do not have this weakness because their diamond segments and steel core are treated separately.
Two-man saw in Oregon A two-man saw (known colloquially as a "misery whip") is a saw designed for use by two sawyers. While some modern chainsaws are so large that they require two persons to control, two-man crosscut saws were primarily important when human power was used. Such a saw would typically be long, and sometimes up to , with a handle at each end. In some cases, such as when felling Giant Sequoias, sawblades could be brazed together end-to-end in order to create longer saws.
Diamond dressers consist of single-point or multipoint tools brazed to a steel shank, and used for the trueing and dressing of grinding wheels. The tools come in several types, including: grit impregnated, blade type, crown type, and disc type. The advantages of multipoint over single-point tools are: # The whole diamond can be used; in a single-point tool, when the point is blunt the diamond must be reset, and after few resettings the diamond is replaced. # Multipoint tools have higher accuracy, especially in form grinding, where blade types are used.
It is common (as of 2018, in hybrid commuter bikes) to use steel for the fork blades even when the rest of the frame is made of a different material, because steel offers better vibration dampening. A classic type of construction for both road bicycles and mountain bicycles uses standard cylindrical steel tubes which are connected with lugs. Lugs are fittings made of thicker pieces of steel. The tubes are fitted into the lugs, which encircle the end of the tube, and are then brazed to the lug.
Carbide, ceramics (such as cubic boron nitride) and diamond, having higher hardness than HSS, all allow faster material removal than HSS in most cases. Because these materials are more expensive and brittler than steel, typically the body of the cutting tool is made of steel, and a small cutting edge made of the harder material is attached. The cutting edge is usually either screwed or clamped on (in this case it is called an insert), or brazed on to a steel shank (this is usually only done for carbide).
A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Plate heat exchangers are now common and very small brazed versions are used in the hot-water sections of millions of combination boilers.
Schematic conceptual diagram of a plate and frame heat exchanger. An individual plate for a heat exchanger The plate heat exchanger (PHE) is a specialized design well suited to transferring heat between medium- and low-pressure fluids. Welded, semi-welded and brazed heat exchangers are used for heat exchange between high-pressure fluids or where a more compact product is required. In place of a pipe passing through a chamber, there are instead two alternating chambers, usually thin in depth, separated at their largest surface by a corrugated metal plate.
The water connections between the manifolds and coil sides are made with flexible hoses of insulating material. The electrical connections between coil sides consist of flexible copper straps, bolted and sweated to contact blocks which are brazed to the conductor tubes near to the end of each coil side. The rings used to connect up the phase groups to the terminals are also water cooled, the flow through these being in parallel with the flow through the coil sides. Direct hydrogen cooling is employed in the stator terminals.
The torch can either be hand held or held in a fixed position depending on whether the operation is completely manual or has some level of automation. Manual brazing is most commonly used on small production volumes or in applications where the part size or configuration makes other brazing methods impossible. The main drawback is the high labor cost associated with the method as well as the operator skill required to obtain quality brazed joints. The use of flux or self-fluxing material is required to prevent oxidation.
Torch brazing of copper can be done without the use of flux if it is brazed with a torch using oxygen and hydrogen gas, rather than oxygen and other flammable gases. Machine torch brazing is commonly used where a repetitive braze operation is being carried out. This method is a mix of both automated and manual operations with an operator often placing brazes material, flux and jigging parts while the machine mechanism carries out the actual braze. The advantage of this method is that it reduces the high labor and skill requirement of manual brazing.
Sid's brother Harry (H.E.G.Ferris) ran 'Ferris Cycles', the bicycle shop and frame building business at 220 and 521 Bath Road, Hounslow, Middlesex, and was a successful amateur cyclist for 30 years. In Cycling Magazine, 1952, he advertised sophisticated "low temperature silver brazed" frames. He was known for his own unique designs and shapes. Harry was also a competitive cyclist, in September 1934 he broke the record for the 211-mile 'London-Bath-London' with a ride of 12 hours 2 minutes 23 seconds on his own design/build of tricycle.
Gold tweezers recovered from the Royal Cemetery of Ur, Iraq 2550-2450 B.C. A pair of bronze tweezers attributed to the Minoan civilization, circa 2900–1050 B.C. Tweezers are known to have been used in predynastic Egypt. There are drawings of Egyptian craftsmen holding hot pots over ovens with a double-bow shaped tool. Asiatic tweezers, consisting of two strips of metal brazed together, were commonly used in Mesopotamia and India from about 3000 BC, perhaps for purposes such as catching lice. During the bronze age, tweezers were manufactured in Kerma.
Between the blocks, and soldered or brazed to them, are one or more strips of low temperature coefficient of resistance (TCR) manganin alloy. Large bolts threaded into the blocks make the current connections, while much smaller screws provide volt meter connections. Shunts are rated by full-scale current, and often have a voltage drop of 50 mV at rated current. Such meters are adapted to the shunt full current rating by using an appropriately marked dial face; no change need to be made to the other parts of the meter.
The AUG has a rotating bolt that features 7 radial locking lugs and is unlocked by means of a pin on the bolt body and a recessed camming guide machined into the bolt carrier. The bolt carrier itself is guided by two guide rods brazed to it and these rods run inside steel bearings in the receiver. The guide rods are hollow and contain the return springs. The bolt also contains a claw extractor that forms the eighth locking lug and a spring-loaded "bump"-type casing ejector.
It was a forerunner of the 1901 Rambler Model A.100 Years of the American Auto Millennium Edition, Copyright 1999 Publications International, Ltd. In 1900 Thomas B. Jeffery sold his successful bicycle company to focus on Rambler automobiles after the exhibition of a $900 Runabout at auto shows got favorable responses. The Rambler was still a proud piece of machinery when low prices took precedence over high quality. Its body featured flared metal tubing for extra strength at the joints, which were brazed by immersion in molten brass.
One of the perceived main attractions of a fixed gear bicycle is low weight. Without the added parts required for a fully geared drive train—derailleurs, shifters, cables, cable carriers, multiple chain rings, freewheel hub, brazed-on mounting lugs—a fixed gear bicycle weighs less than its geared equivalent. The chain itself is subject to less sideways force and will not wear out as fast as on a derailleur system. Also, a fixed gear drivetrain is more mechanically efficient than any other bicycle drivetrain, with the most direct power transfer from rider to the wheels.
Combination reamers are mostly used in screw machines or second-operation lathes, not with Computer Numerical Control (CNC) machines because G-code can be easily generated to profile internal diameters. Combination reamers can be made out of cobalt, carbide, or high speed steel tooling. When using combination reamers to ream large internal diameters made out of material with lower surface feet per minute, carbide tips can be brazed onto a configured drill blank to build the reamer. Carbide requires additional care because it is very brittle and will chip if chatter occurs.
Tungsten carbide ring Tungsten carbide, typically in the form of a cemented carbide (carbide particles brazed together by metal), has become a popular material in the bridal jewelry industry due to its extreme hardness and high resistance to scratching.SERANITE – Trademark Details Justia Trademark, 2013 Even with high-impact resistance, this extreme hardness also means that it can occasionally be shattered under certain circumstances. Some consider this useful, since an impact would shatter a tungsten ring, quickly removing it, where precious metals would bend flat and require cutting. Tungsten carbide is roughly 10 times harder than 18k gold.
The J-2's thrust chamber assembly served as a mount for all engine components, and was composed of the thrust chamber body, injector and dome assembly, gimbal bearing assembly, and augmented spark igniter. The thrust chamber was constructed of thick stainless steel tubes, stacked longitudinally and furnace-brazed to form a single unit. The chamber was bell-shaped with a 27.5:1 expansion area ratio for efficient operation at altitude, and was regeneratively cooled by the fuel. Fuel entered from a manifold, located midway between the thrust chamber throat and the exit, at a pressure of more than .
The "Series D Rapide" appeared in 1954. While the Series D designation was never officially used by the factory, the extensive differences between these bikes and the Series C Rapides have earned them their own classification. The Series D used a modified RFM with relocated spring box lugs and a new single Armstrong spring/damper unit that increased suspension travel by 30% to a full . The previous box-section UFM was replaced by a simple tube with brazed lugs at each end bolted to a slightly modified version of the Series C malleable steering head casting.
They were excluded for a fuel irregularity at the Isle of Man TT, awarding the championship to Max Deubel and Emil Hörner, but reinstated three months later on appeal. Scheidegger was killed while leading a race at Mallory Park in 1967. Scheidegger's BMW outfit crashed at high speed at Shaw's Corner after a defective bracket holding both the rear brake torque arm and the gear change cross shaft failed. At the following inquest, it was also disclosed that the bracket had not been properly brazed and that it's brazing had been cracked for some considerable time.
Patented by Carrozzeria Touring in 1936, the superleggera system consists of a structural framework of small-diameter steel tubes that conform to an automobile body's shape and are covered by thin alloy body panels that strengthen the framework. Aside from light weight, the superleggera construction system allows great design and manufacturing flexibility, enabling coachbuilders to quickly construct innovative body shapes. The superleggera tubes were brazed to shape on a jig and the panels were then fitted over this. The panels are only attached at their edges, mostly by swaging the panel edges over angle-section strips on the steel framework.
The CoBra (Copper Brazed, also known as "The Mighty Tin") was originally developed by Lloyd Taylor, of Taylor Engines in California, for military use aboard PT boats and B-17 Flying Fortress bombers. The engine was made from sheet metal rather than cast iron like most other engines. This was done to get a thin, uniform wall thickness and thus avoid the creation of hot spots around the combustion chamber that could ignite the fuel, causing pre-ignition (knocks), which in turn limited the compression ratio. These engines were used mainly to power generators, refrigeration compressors, etc.
Difluoromethane is currently used in residential and commercial air-conditioners in Japan, China, and India as a substitute for R-410A. In order to reduce the residual risk associated with its mild flammability, this molecule should be applied in heat transfer equipment with low refrigerant charge such as brazed plate heat exchangers (BPHE), or shell and tube heat exchangers and tube and plate heat exchangers with tube of small diameter. Many applications confirmed that difluoromethane exhibits heat transfer coefficients higher than those of R-410A under the same operating conditions but also higher frictional pressure drops.
Specialized started to produce the Stumpjumper in 1981, making it the first mass-production mountain bike. The first Stumpjumper was produced in Japan and was based on a design for a custom-made bike originally marketed by Tom Ritchey, Gary Fisher and Charles Kelly. Specialized's founder Mike Sinyard has explained that the company's aim was to "make a bike on a production basis but as though it was a custom bike". The first Stumpjumpers had welded steel frames because the lugged and brazed frames that designer Tim Neenan wanted to use were not available at the time.
Moser Cicli time trial bicycle Francesco Moser began building racing bicycles after his retirement, as did many Italian bicycle racers, in a small workshop in Trento, Italy. Production is 2,000-3,000 frames annually. Moser's frames are unique among Italian racing bicycles for being fillet brazed using silver solder rather than using lugs with brass brazing; silver solder never gets hot enough to weaken the tubing and thus bicycles constructed in this manner do not need to be reinforced with lugs, thus reducing the bicycle's weight. After brazing, each frame is hand filed and aligned on a digital alignment table.
The condenser of this column requires refrigeration which is obtained from expanding the more oxygen rich stream further across a valve or through an Expander, (a reverse compressor). # Alternatively the condenser may be cooled by interchanging heat with a reboiler in a low pressure (LP) distillation column (operating at 1.2-1.3 bar abs.) when the ASU is producing pure oxygen. To minimize the compression cost the combined condenser/reboiler of the HP/LP columns must operate with a temperature difference of only 1-2 K, requiring plate fin brazed aluminium heat exchangers. Typical oxygen purities range in from 97.5% to 99.5% and influences the maximum recovery of oxygen.
Vincent Rapide Series A (1939) The Series A Rapide was the first production Vincent to receive the V-twin engine. The bike's frame was a version of the brazed-lug-and-steel-tube diamond frame used by the Comet, but lengthened to accommodate the longer V-twin engine. The rear suspension was based on the cantilever system patented by Phil Vincent while at Cambridge. Comprising a rear frame member (RFM) of two upright triangular arms pivotting at the bottom of the frame and attached to two spring boxes and damper at the top, this system had been used on all Vincents from the first Vincent Special prototype built in 1927.
Some cores have spaces (known as gullets) between segments to provide cooling and slurry removal, while others have a single continuous rim for smoother cutting. The type of core that can be used depends on the type of materials that the diamond blade is designed to cut. Generally, there are three types of sintered metal-bonded diamond blades according to their manufacturing methods: wholly sintered diamond blades, silver brazed diamond blades and laser welded diamond blades. A wholly sintered diamond blade is made by putting the steel core, together with the diamonds and the metal bond materials, into a mold and then sintering it in a sintering furnace equipment.
The seawater and main ballast systems of future classes (Sturgeon-class SSNs and SSBNs) were redesigned, and some Threshers and other submarines were rebuilt to SUBSAFE standards. SUBSAFE includes specific training of SUBSAFE quality assurance inspectors in the engineering crew, and tracks extremely detailed information about every component of a submarine that is subject to sea pressure. Joints in any equipment carrying seawater must be welded (not brazed), and every hull penetration larger than a specified size can be quickly shut by a remote hydraulic mechanism. The program has been very successful, as no SUBSAFE submarines have been lost as of 2019 ( was not SUBSAFE).
Polycrystalline diamond (PCD) is formed in a large High Temperature- High Pressure (HT-HP) press, as either a diamond wafer on a backing of carbide, or forming a "vein" of diamond within a carbide wafer or rod. Most wafers are polished to a mirror finish, then cut with an electrical discharge machining (EDM) tool into smaller, workable segments that are then brazed onto the sawblade, reamer, drill, or other tool. Often they are EDM machined and/or ground an additional time to expose the vein of diamond along the cutting edge. These tools are mostly used for the machining of nonmetallic and nonferrous materials.
The 300 SLR was front mid-engined, with its long longitudinally mounted engine placed just behind the front axles instead of over them to better balance front/rear weight distribution. A brazed steel tube spaceframe chassis carried ultra-light Elektron magnesium-alloy bodywork (having a specific gravity of 1.8, less than a quarter of iron's 7.8), which contributed substantially to keeping dry weight to a remarkably low . The W196's 2,496.87 cc (76.0 x 68.8 mm) straight-8 was bored and stroked to 2,981.70 cc (78.0 x 78.0 mm), boosting output from at 8,500 rpm to about at 7,400 rpm, depending on intake manifold. Maximum torque was at 5,950 rpm ( BMEP).
Up-turned, Down-turned and Straight Hook Eyes The eye of a hook, although some hooks are technically eyeless, is the point where the hook is connected to the line. Hook eye design is usually optimized for either strength, weight and/or presentation. There are different types of eyes to the hooks. Typical eye types include the ring or ball eye, a brazed eye-the eye is fully closed, a tapered eye to reduce weight, a looped eye—traditional on Atlantic Salmon flies, needle eyes, and spade end—no eye at all, but a flattened area to allow secure snelling of the leader to the hook.
The Muisca used to make matrixes or moulds of rock types such as shales and obsidian and poured their molten gold or tumbaga into the matrix. When the metals were cooled and solidified, they removed the stone moulds and the tunjos remained. To create the 2D tunjos, they used a lost-wax casting process using beeswax to make the figure, put the wax tunjo in clay, that was heated to evaporate the wax and the gold or tumbaga was poured into the empty space left.Cooper, 2013 The design of the majority of tunjos appears to have gold wire soldered or brazed onto their surface.
Eight H-1 engines in a Saturn I Like all of Rocketdyne's early engines, the H-1 used a waterfall injector fed by turbopumps, and regeneratively cooled the engine using the engine's fuel. The combustion chamber was made of 292 stainless steel tubes brazed in a furnace.H-1 Rocket Engine Smithsonian Unlike the J-2 engine used on the S-IVB stage, the H-1 was a single-start engine. It could be fired multiple times—and engines were usually subject to two or more static test firings before a mission to flight-qualify them—but it could not be restarted in flight, because some components required for the startup sequence were non-reusable.
The original engine is the Waukesha Model 150 Cub Twin, a or air-cooled L-head opposed twin-cylinder engine, putting out 14 HP at 3200 rpm,Twin Cub 150 – Waukesha Engine Historical Society, Inc built by Waukesha Engines of Waukesha, Wisconsin, and used from 1939 through 1942. The engine was originally designed to power orchard sprayers. However, many of the over 12,000 built between 1938-44, were used in the pre-war (1939-42) Crosley mini-cars and the military during WWII, some of which were also used for Auxiliary Power Units (APU). It was replaced in 1946 with the CoBra (for "Copper Brazed"), a overhead-cam four with a bore and stroke.
This small, four-wheeled, two-seater, utilized a moulded fibreglass shell with gull-wing doors and a Villiers air-cooled two- cylinder engine fitted to a brazed ladder-type chassis. To make a differential unnecessary, the car used a very narrow rear track, with drive to the solid rear axle by roller chain. The car was fitted with a four-speed motorcycle manual gearbox, with reverse obtained by running the engine backwards through the Dynastart unit. The Michelotti-designed Meadows Frisky at the 1957 Geneva Show Whilst The Bug was under development, the Italian coachbuilding company Vignale of Turin, was commissioned by Flower to design the bodywork for the production version, a task they allocated to Giovanni Michelotti.
The symbolic representation of a V weld of chamfered plates in a technical drawing The symbols and conventions used in welding documentation are specified in national and international standards such as ISO 2553 Welded, brazed and soldered joints -- Symbolic representation on drawings and ISO 4063 Welding and allied processes -- Nomenclature of processes and reference numbers. The US standard symbols are outlined by the American National Standards Institute and the American Welding Society and are noted as "ANSI/AWS". Due in part to the growth of the oil industry, this symbol set was used during the 1990s in about 50% of the world's welding operations. An ISO committee sought to establish a global standard during this decade.
For the sake of clear communication, the reviving of the Widia brand may naturally further discourage use of the generic sense.. Uncoated tips brazed to their shanks were the first form. Clamped indexable inserts and today's wide variety of coatings are advances made in the decades since. With every passing decade, the use of carbide has become less "special" and more ubiquitous. Regarding fine-grained hardmetal, an attempt has been made to follow the scientific and technological steps associated with its production; this task is not easy, though, because of the restrictions placed by commercial, and in some cases research, organisations, in not publicising relevant information until long after the date of the initial work.
Because heat- resistant titanium is hard to weld and difficult to work with, welded nickel steel was used for the Mach 2.8 Mikoyan-Gurevich MiG-25 fighter, first flown in 1964; and the Mach 3.1 North American XB-70 Valkyrie used brazed stainless steel honeycomb panels and titanium but was cancelled by the time it flew in 1964. Computer-aided design system was developed in 1969 for the McDonnell Douglas F-15 Eagle, which first flew in 1974 along the Grumman F-14 Tomcat and both used Boron fiber composites in the tails; less expensive carbon fiber reinforced polymer were used for wing skins on the McDonnell Douglas AV-8B Harrier II, F/A-18 Hornet and Northrop Grumman B-2 Spirit.
The nominal homologation at 1601 cc capacity meant that BDA-engined cars competed in what was usually the top class (1600 cc and up) so were eligible for overall victories rather than class wins. In 1970, the 1701 cc BDB was created for the Escort RS1600, and this engine received fuel injection for the first time in the series as 1701 cc BDC. Two years later, the BDA series was adopted for Formula 2; first came the 1790 cc BDE, then the 1927 cc BDF eventually reaching a maximum of 1975 cc BDG in 1973. As the bore size reached ever closer to the bore center distance, leaving little space in between cylinders, the all three types had brazed-in cylinder liners to the block.
Rob North framed BSA Rocket 3 F750 class at the Sammy Miller Museum Bert Hopwood urged BSA's managers to make a production version of the racing triple, producing at 8,250 rpm - but this suggestion was ignored, partly due to financial concerns. Further racing development in the USA was carried out at the Duarte, California, facility under Racing Manager Dan Macias. USA BSA/Triumph dealers had access to factory race parts, but due to difficulties in obtaining race frames from the UK, Macias built his own jig and the frames were manufactured by Wenco. The main differences from the factory North frames were TIG welding instead of brazed, flat plate rear engine mounts instead of built-up formed sheet and 4130 Cro-Mo steel material.
These "second series" frames all utilized Columbus tubesets of Matrix, SL or SLX type tubing and featured Columbus "short point" lugs and Cinelli-type Columbus bottom brackets & semi- sloping fork crowns. Seat stay lugs were Gipiemme, brazed into the contour of the rear quarters of the seat tube lug. Other braze-ons were also Gipiemme, including the two styles of brake stay bridges used, depending on the model, and the induction-cast "box arch" chainstay bridge which was common to all steel Bertonis, with the exception of the TSX model - the frame of which was obviously the Daccordi Griffe, but with Bertoni inscriptions and decals. Dropouts were forged Columbus on the lower/mid range and Campagnolo for the upscale models.
Contemporary gents' roadster The classic gents' roadster, AKA the English roadster, has a lugged brazed steel diamond frame, rod-actuated brakes and of late, cable operated drum brake systems have been widely produced for the European market, upright North Road handlebars, a single gear ratio or 3 or 5 speed hub gears, a chaincase, steel mudguards, steel cranks, 28 x 1½ inch (ISO 635) wheels, Westwood rims, and often a Sturmey-Archer hub dynamo. Roadsters are built for durability above all else and no serious attempt is made to save weight in their design or construction, roadsters weigh upwards of 40-45 pounds (18–20 kg). They were often the mounts of policemen and rural letter carriers. A derivative of the roadster, the ladies' model, is seldom called a roadster.
An often-cited specification applicable to some modern pits describes a hollow sphere of a suitable structural metal, of the approximate size and weight of a bowling ball, with a channel for injection of tritium (in the case of boosted fission weapons), with the internal surface lined with plutonium. The size, usually between a bowling ball and a tennis ball, accuracy of sphericity, and weight and isotopic composition of the fissile material, the principal factors influencing the weapon properties, are often classified. The hollow pits can be made of half shells with three joint welds around the equator, and a tube brazed (to beryllium or aluminium shell) or electron beam or TIG-welded (to stainless steel shell) for injection of the boost gas.BREDL Southern Anti- Plutonium Campaign. Bredl.
Wooden furniture was still in use in some Territorial Army units and in limited numbers with the RAF until at least 1989. The SLR selector has two settings (rather than the three that most metric FALs have), safety and semi-automatic, which are marked S (safe) and R (repetition.) The magazine from the 7.62 mm L4 light machine gun will fit the SLR; however, the L4 magazine was designed for gravity assisted downwards feeding, and can be unreliable with the upwards feeding system of the SLR. Commonwealth magazines were produced with a lug brazed onto the front to engage the recess in the receiver, in place of a smaller pressed dimple on the metric FAL magazine. As a consequence of this, metric FAL magazines can be used with the Commonwealth SLR, but SLR magazines will not fit the metric FAL.
The train consisted of nine cars arranged in two distinct "halves", with the Class 952 half-set consisting of four separate vehicles, and the Class 953 half-set consisting of five articulated vehicles using shared bogies. Three different construction methods were used for the vehicle bodies. Cars 1 to 3 used welded hollow aluminium extrusions, cars 4 to 5 used brazed aluminium honeycomb panels, and cars 6 to 9 used an aircraft-style Duralumin fuselage construction. The front- end design of the two driving vehicles (952-1 and 953-5) were slightly different, although both used a wedge-shaped profile with little lateral taper. The external livery was light green for the Class 952 cars (including half of car 953-1), "snow" grey for cars 953-1 to 953-3, and beige for cars 953-3 to 953-5, with a light blue window band throughout the length of the train.
A thin greyish plume of smoke is visible near the island's southeastern shore, rising from Kilauea—the most active volcano on Earth. Heavy rainfall and fertile volcanic soil have given rise to Hawaii's lush tropical forests, which appear as solid dark green areas in the image. The light green, patchy areas near the coasts are likely sugar cane plantations, pineapple farms, and human settlements. The Multispectral Scanner onboard Landsat missions 1 through 5 had a 230 mm (9 in) fused silica dinner-plate mirror epoxy bonded to three invar tangent bars mounted to base of a Ni/Au brazed Invar frame in a Serrurier truss that was arranged with four "Hobbs-Links" (conceived by Dr. Gregg Hobbs), crossing at mid-truss. This construct ensured the secondary mirror would simply oscillate about the primary optic axis to maintain focus despite vibration inherent from the 360 mm (14 in) beryllium scan mirror.
The trigger engages one arm of a "z"-shaped sear pivoting in its centre between two upstanding brackets riveted or brazed to the inside of the lockplate. The other arm of the sear passes through a hole in the lockplate, and engages in a blind hole on the inner side of the wheel, thus effectively locking it and preventing any rotation but only because of a secondary sear or wedge that is pressed under the rear arm of the sear—that is between the lockplate and the sear—when the forward part of it engages into the recess in the wheel. When the trigger is pulled, the secondary lever is withdrawn from its position and the strong pull of the mainspring pushes the unsupported main sear back into the lock and the wheel is free to rotate. The mechanism may seem overconstructed, but it prevents the trigger mechanism from working against the very powerful mainspring as it is the case with all vertical acting sears in flint and percussion locks or even modern firearms that still have cocks (revolvers).
Use of a cam in a large crack The invention of SLCDs revolutionized rock climbing because it meant that cam (aka protection) could be placed into parallel or flared cracks so as to prevent the climber hitting the ground if they fell. Furthermore, unlike pitons, SLCDs can be removed easily without causing damage to the rock, which made clean climbing (climbing without damaging the rock) practical on many more climbs. Since the invention of the Technical Friend (which replaces the original one- piece machined alloy shaft with a brazed assembly incorporating a length of thick stainless-steel cable, which is better able to cope with loading over an edge), there has been a great deal of development of the SLCD by a variety of manufacturers, e.g., the adoption of the dual axle design by Black Diamond, the invention of three-lobed camming units to fit smaller cracks, and the more recent invention of the Link Cam by Omega Pacific, a design that allows one SLCD to span an even larger range of crack sizes.

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