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3875364 |
Apparatus for inert gas shielded welding
A gas-flooding device for attachment to a welding tool tip used in heli-arc welding which includes a nonconsumable electrode projecting from a gas nozzle. The attachment device consists of a...
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3859767 |
CORNER STRUCTURE IMPROVEMENT AND METHOD
An improvement in three-dimensional corner constructions wherein a three-member or three-legged corner spline is used to reinforce the abutment and proximate positioning of three elongate members...
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3853637 |
METHOD OF TREATING ARTICLES UNDER DIFFERENTIAL VACUUM CONDITIONS WITH EXTERNAL GAS FLOW
The process of treating articles in a vacuum which includes placing the articles in a first enclosure which is fluidly connected to a second enclosure through a fixed or variable orifice. The first...
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3849865 |
METHOD OF PROTECTING THE SURFACE OF A SUBSTRATE
The surface of a metallic base system is initially coated with a metallic alloy layer that is ductile and oxidation resistant. An aluminide coating is then applied to the metallic alloy layer. The...
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3849871 |
METHOD FOR WELDING PIPES
A method for welding large tubular members such as pipe in end-to-end relationship by first machining the ends of the members to form a radially thin, axially extending flange on each end adjacent...
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3845545 |
METHOD FOR MAKING REGENERATIVE HEAT-EXCHANGER SEALS
A method of manufacturing a counterface hot-side seal for a rotary disc-type matrix of a regenerative heat-exchanger comprises: forming a composite structure, consisting of a counterface element...
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3844026 |
BOND PREPARATION IN ELECTRICAL DEFLECTION-SENSITIVE TRANSDUCER
A method of preparing in an electrical deflection-sensitive transducer a bond between a piezoresistive element and a carrier therefor. The method includes the flowing of a mass of a gold-tin alloy...
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3838240 |
BONDING TOOL AND METHOD OF BONDING THEREWITH
A thermocompression bonding tool is heated by a combination of conductive and resistive heating means. Firstly, a bonding tip of the tool is heated by conduction with heat provided by a heating...
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3811177 |
PROCESS FOR BRAZING WORKPIECES OF ALUMINUM CONTAINING MATERIAL
A process for brazing aluminum-containing work-pieces wherein the brazing filler metal contains components which lower the surface tension and the viscosity of the molten brazing filler metal, and...
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3754115 |
TUBE SHEET WELDING WITH INERT GAS PRESSURE AT THE JOINT
A method and apparatus is disclosed to horizontally butt fusion weld a tube to a tube sheet. A chill bar surrounds the butted joint forming a chamber around the joint to contain an inert gas under...
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3737978 |
BRAZING METHOD
A method and apparatus are disclosed for brazing articles such as honeycomb sandwich structures. The apparatus includes a cold wall box-like housing separable into upper and lower sections. Each...
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3736648 |
METHOD OF BONDING A ZIRCONIA MEMBER WITH ANOTHER MEMBER
Method of bonding together two members, one of which comprises zirconia. A mixture is prepared comprising an active metallic component such as titanium, zirconium, titanium hydride, or zirconium...
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3736400 |
APPARATUS FOR DAMMING PIPE ENDS FOR WELDING
A method and apparatus for welding together a pair of pipe ends. The method comprises providing a water soluble dam at each pipe end, inserting an inert gas into the ends between the dams, welding...
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3733686 |
METHOD FOR WELDING TITANIUM CLAD STEEL
Titanium clad steel parts are welded together by removing the titanium clad from the steel for a sufficient distance to permit welding of the steel without contaminating the titanium, machining...
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3729805 |
METHOD OF PRODUCING STAINLESS STEEL-LOW CARBON STEEL COMPOSITES
Stainless steel-low carbon steel composite sheets are prepared by welding a sheet of stainless steel to one side of a sheet of low carbon steel, the carbon steel sheet being preferably in the form...
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3722073 |
PRODUCTION OF PRODUCTS DIRECTLY FROM NICKEL CATHODES
A method of producing a unitary piece from a pack of nickel cathodes, comprising hot working said pack to reduce its thickness by about 75 percent or more. Preferably, the hot working is carried...
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3713206 |
METHOD FOR THE MANUFACTURE OF A COMPOSITE REFRACTORY METALLIC ELEMENT WITH POROUS COATING
The casing of a turboreactor is constituted of a refractory alloy based on ickel and includes an abradable porous metallic coating constituted by a nickel felt. The coating is bonded by brazing to...
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3705457 |
WAVE SOLDERING USING INERT GAS TO PROTECT PRETINNED AND SOLDERED SURFACES OF RELATIVELY FLAT WORKPIECES
Relatively flat workpieces, such as printed circuit boards, are pretinned and soldered using the wave solder technique in which molten solder is forced upwardly through a nozzle to form a standing...
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3701196 |
METHOD OF MAKING WELDED JOINTS
Method of making welded joints between metals of different heat conductivity, and which have a tendency to form intermetallic phases when contacted at high temperatures, such for example as...
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3678568 |
METHOD OF SECURING DIAMOND BY BRAZING
Method of securing diamond by means of brazing with a brazing filler consisting of an alloy of aluminum and silicon which contains from 8 to 18% by weight of silicon.
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3673678 |
FLUXLESS BRAZING PROCESS
A process for the fluxless brazing of aluminum parts in a vacuum furnace in the presence of magnesium wherein a non-oxidizing gas is introduced into the evacuated furnace chamber to increase the...
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3660891 |
FILLER METAL ALLOY FOR TITANIUM BRAZING
The disclosure is a brazing method for uniting two or more titanium components, e.g., as in fabricating titanium honeycomb sandwich structures, utilizing a filler metal alloy composition which has...
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3648356 |
METHOD FOR MAKING COPPER PLATED ALUMINUM WIRES
Aluminum is extruded, and the resulting core when still warm is lined with copper by deforming a copper tape around the core, welding the tape edges and drawing the resulting tube onto the core,...
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3629932 |
WELDING OF EXPLOSIVE-PLATED METAL SHEETS
The present disclosure relates to a process and arrangement of elements for welding explosive-clad metal sheets which substantially eliminate the formation of cracks when the weld is exposed to...
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3624678 |
METHOD FOR MAKING DIELECTRIC-TO-METAL JOINTS FOR SLOW-WAVE STRUCTURE ASSEMBLIES
In the disclosed method for fabricating a slow-wave structure supporting and encasing assembly, a film of elemental chromium is vapor deposited onto a portion of each of a plurality of beryllia...
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3617682 |
SEMICONDUCTOR CHIP BONDER
An apparatus for attaching semiconductor chips to gold pads is described as comprising a stainless steel hot stage mounted on top of a heater block having a temperature of approximately 300° C....
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3614378 |
FLUXLESS HIGH-FREQUENCY ALUMINUM TUBE WELDING WITHOUT INSERTS
A method of fillerless butt welding hot crack sensitive aluminum tubing with high-frequency current pulsation with continuous pressure purging as a means of eliminating flux and improving weld bead...
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3612389 |
APPARATUS FOR SOLID-STATE WELDING
A vacuum pack encapsulation device for containment of metal members to be joined together by solid-state welding. Positioners are assembled inside the pack in and around the metal members for...
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3604103 |
METHOD OF CLADDING METALS AND COMPOSITES THEREOF
A method of forming an integral metallurgical composite of dissimilar metals one of which is a refractory metal comprising covering the refractory metal with at least one other metal to form a...
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3601884 |
METHOD OF CONSTRUCTING PARTS SUITABLE FOR HIGH HEAT FLUX REMOVAL IN ARC HEATERS
A component to have a passageway or passageways therein, for example for the flow of cooling fluid, is formed in two or more parts which fit closely together so that one surface of one part is...
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3597833 |
METHOD OF PERFORMING A BRAZING OPERATION ON TERMINAL STRUCTURE OF METAL BRAID
In this method, a tubular end ferrule is placed about the end of a short length of metal braid, and this assembly is placed in a chamber with the ferrule projecting through a hole in the chamber...
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3591917 |
PROCESS FOR JOINING SURFACES
A method for joining refractory and reactive surfaces to themselves or to other surfaces by depositing a layer of a titanium-indium alloy between the joinable surface, and heating under vacuum to...
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3547599 |
SOLID STATE JOINING METHOD
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3543382 |
PROCESS FOR EXPLOSIVE SURFACE BONDING OF METAL PARTS
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3531853 |
METHOD OF MAKING A CERAMIC-TO-METAL SEAL
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3517432 |
DIFFUSION BONDING OF CERAMICS
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3510157 |
SEAL FOR HYDROGEN DIFFUSION APPARATUS
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3504426 |
PROCESS FOR BONDING
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3486223 |
SOLDER BONDING
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3471921 |
METHOD OF CONNECTING A STEEL BLANK TO A TUNGSTEN BIT BODY
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3469307 |
MINERAL INSULATED ELECTRIC CABLES
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3469304 |
FLUXED GAS FOR RESISTANCE AND INDUCTION WELDING AND BRAZING
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3468016 |
METHOD AND COMPOSITION FOR IMPROVED WELDING OF LIGHT METAL OR LIGHT ALLOYS
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3460232 |
ROLL-WELDED RING FORMING PROCESS
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3452423 |
SEGMENTING LEAD TELLURIDE-SILICON GERMANIUM THERMOELEMENTS
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3444610 |
MANUFACTURE OF CLAD WIRE AND THE LIKE
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3443304 |
METHOD OF PRODUCING SUPERCONDUCTIVE TAPES OR BANDS
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3442010 |
BRAZING METHOD
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3438118 |
METHOD OF FORMING CERAMIC-TO-METAL SEAL
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3417461 |
Thin-film diffusion brazing of titanium members utilizing copper intermediates
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