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4445259 |
Method of manufacturing bladed elements for rotary fluid machines
A method of manufacturing a bladed element of a rotary fluid machine, for example a turbine or compressor, includes the steps of securing a plurality of blades in a gas-tight manner in respective...
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RE31526 |
Coated cemented carbide body and method of making such a body
An improved sintered cemented carbide body and method for making same is disclosed. The improved sintered cemented carbide body contains at least one metal carbide and a binder metal, on which body...
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4426248 |
Process for coating rifle tubes
A process for coating the inside diameter of a tube utilizes a coated manl which has been first coated in a Ni Cr Al Y slurry, air dried, vacuum sintered, and then inserted in a tube. A...
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4412643 |
Method for bonding of a porous body and a fusion-made body
The invention provides a novel method for firmly bonding a porous body, e a sintered body prepared by the powder metallurgical techniques with a metal powder, and a fusion-made body, e.g. an iron...
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4411712 |
Method of manufacture of multifilamentary intermetallic superconductors
An improved method for manufacture of multifilamentary superconductors of the A 3 B type having the A-15 crystal structure, such as Nb 3 Sn, is disclosed in which rods or wires of the A material...
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4400408 |
Method for forming an anticorrosive coating on a metal substrate
A method for forming an anticorrosive coating on the surface of a metal substrate, which comprises, in one embodiment, (1) coating the surface of the metal substrate with an anticorrosive metal...
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4389462 |
Process for enclosing a pin shank within an enclosing member and article produced thereby which is substantially devoid of a gap between the enclosing member and the head of the pin
A composite article having particular utility as a welding stud and a process for producing the article. The article is comprised of a pin and an enclosing member formed from a dissimilar material....
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4389362 |
Method for manufacturing billets of complicated shape
A method for manufacturing an article to an intended near final shape and size with powder as the starting material. The powder is placed in a first capsule having the shape of the desired article...
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4386959 |
Method for compound sintering
Joined connections between a metallic compact body made by melting metallurgy and a body made by powder metallurgy are prepared by providing a pre-formed, unsintered pressed body having at least...
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4383809 |
Capsule for use in hot isostatic pressing of workpieces
A capsule for use in hot isostatic pressing of a complex-shape workpiece, comprising a ceramic core formed with a cavity having the negative contour of the workpiece, the cavity being open on one...
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4383854 |
Method of creating a controlled interior surface configuration of passages within a substrate
A method of creating a controlled interior surface configuration of passages within a substrate, particularly cooling passages of nozzles or buckets of a gas turbine, involves the hot isostatic...
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4380479 |
Foils of brittle alloys
Nickel based brazing alloys containing embrittling additives are made by depositing a powder blend on a nickel substrate and roll compacting to form an alloy foil having the desired metallurgical...
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4369078 |
Process and an apparatus for converting lump-size material of titanium metal or its alloys into powder-form material and pressings
This invention relates to a process and an apparatus for converting lump-size material, particularly scrap, of titanium metal or its alloys, preferably of low oxygen content, into powder-form...
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4365995 |
Method of producing multi-layer sliding material
A steel strip having distributed thereon powder containing aluminum as its main ingredient is cooled to a temperature range of less than 15° C. below room temperature. The cooled material is...
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4365679 |
Drill bit
A drill bit with cutting teeth for drilling in rock comprising: a core member having raceways for rolling elements for rotation of the drill bit, a supporting layer exteriorly shaped to...
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4358319 |
Method for manufacturing commutator
A method for manufacturing commutator for use in rotary electric machines, in which a shaping material prepared from electrically conductive metal powder material or a mixture of the metal powder...
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4350528 |
Method for diffusion bonding workpieces and article fabricated by same
A diffusion bonding method for assembling members formed from a liquid phase system material into a monolythic structure free of flaws and distortion. Member blanks are first formed from the...
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4343072 |
Method of manufacturing composite rings for bearings
This method of manufacturing composite rings for rolling-contact bearings comprises the steps of making a composite ring from a blank of bearing steel sheet and a circular rough-shaped steel body...
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4333419 |
Methods and device for cladding elongated objects such as wires and the like with powdered material
A method of cladding a wire with a powdered metal includes feeding the wire in its axial direction, applying powdered metal around its surface, compacting the applied powdered layer on the surface...
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4325757 |
Method of forming thin curved rare earth-transition metal magnets from lightly compacted powder preforms
A method is provided for forming rare earth-transition metal (RE-TM) powders directly into radially aligned, thin, curved permanent magnets supported on ferromagnetic backings. Such magnets are...
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4324588 |
Arc erosion resistant composite materials and processes for their manufacture
This invention relates to an arc erosion-resistant composite material and methods for its manufacture and, more specifically, composite arc erosion resistant materials useful as electrodes in spark...
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4324750 |
Method for making high K PLZT ceramic capacitor
A powder blend consisting essentially of precursors of a single antiferroelectric compound of lead-barium-lanthanum-zirconate titanate doped with silver, includes at least 0.7 mole percent bismuth...
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4324356 |
Process for joining silicon nitride based ceramic bodies
A method of joining silicon nitride based ceramic bodies is disclosed. At least one interfacing surface of shaped bodies (one or both of which may be hot-pressed or reaction-sintered) receives a...
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4315776 |
Method of producing light gage metallic strip material
An improved method of producing a coil of light gage metallic strip material is disclosed comprising the steps of compressing a metal powder mixture into a cylindrical billet having homogeneous...
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4303442 |
Diamond sintered body and the method for producing the same
The invention relates to a diamond sintered body having a high wear resistance and making it possible to obtain a processed surface of high dimensional precision and beautiful finish as a wear...
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4299627 |
Method of manufacturing oxygen sensing element
An oxygen sensing element capable of measuring partial pressures of oxygen in sample gases, which element has a solid electrolyte member having totally embedded therein a means for providing a...
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4297777 |
Method for the production of a composite hollow body
A method for the production of a composite hollow body formed of aluminum alloys and composed of two layers having differing structure. One layer of the hollow body is intended to operate in...
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4293619 |
Silicon-nitride and metal composite
A composite and a method for bonding the composite. The composite includes a ceramic portion of silicon nitride, a refractory metal portion and a layer of MoSi 2 indirectly bonding the composite...
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4278568 |
Process of manufacturing sheet metal elements or strip having a catalytic surface structure
In the manufacture of sheet metal elements or strip having a catalytic surface structure, a mixture of skeleton material powder, and of Raney alloy powder is rolled onto the starting sheet metal...
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4278153 |
Brake friction material with reinforcement material
A brake disk frictional module is provided, composed of sintered metallic material reinforced throughout its entire volume by a grid system of pure metal or metallic alloy. The friction module may...
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4277544 |
Powder metallurgical articles and method of bonding the articles to ferrous base materials
The present invention relates to powder metal articles that can be successfully welded to ferrous base materials. A formed part having an initial part density of at least 5.8 grams per cubic...
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4267241 |
Method of preparing steel-backed antifriction alloy, composite strips and products therefrom
A method of improving steel-backed antifriction alloy; composite strips and products therefrom, wherein the antifriction alloys previously deposited on the steel backing strip are subjected...
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4265681 |
Method of producing low loss pressed magnetic cores from microlaminations
A method for making pressed magnetic components having a low core loss characterized by the steps of compacting a plurality of substantially rectangular particles of an oriented iron alloy having a...
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4261745 |
Method for preparing a composite metal sintered article
A composite metal sintered article combining a metal shell which has been electroformed and/or electroless plated and/or vapor deposited, positioned inside or outside of a metal sintered compact. A...
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4259413 |
Composite stainless steel boron-containing article
A shaped article is provided having a composite structure made up primarily of a substrate which can be cold worked, if at all, only with a disproportionate amount of scrap and a cladding which is...
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4256810 |
High conductivity titanium electrode
A highly electrically conductive composite electrode is provided which comprises an inner layer of an electrically conductive metal, a first outer layer of pressed and sintered powdered titanium...
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4247036 |
Process for assembling aluminum-based members and steel members
The invention concerns a process for assembling aluminum-based members and steel members. This process is characterized by: covering the steel member with a metal film on the part of the surface...
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4243169 |
Deformation process for producing stress relieved metal/ceramic abradable seals
Metal/ceramic abradable seals of the type used in jet aircraft are improved by using a substrate which is able to deform during cooling from the brazing temperature and then rendering the substrate...
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4236923 |
Method of metallurgically joining a fitting to a shaft
Method of obtaining a metallurgically firm joint between a shaft and its fitting member by assembling on the shaft a fitting member molded of a wear-resistant iron base sinterable alloy which...
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4235007 |
Method of production of a wire-shaped composite addition material
An addition material in powder or particulate form comprising at least one addition agent selected from the group consisting of calcium, magnesium and aluminum is extruded to provide a compact core...
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4227166 |
Reactor
A reactor comprising an annular iron core constituting a closed magnetic path and a conductor wound on the iron core. The iron core is formed of particles of iron or an iron-based magnetic...
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4224085 |
Wire forming process
A process of producing copper-cored titanium wire of less than 16 gauge comprising cold drawing, in a multiplicity of passes, a titanium tube filled with copper powder.
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4216017 |
Method and equipment for sintering under pressure
The materials to be sintered are placed in a deformable container which is in turn placed within a non-deformable treatment module equipped with heating means. The temperature of the container is...
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4195764 |
Brazing of powdered metal parts
Disclosed is a method of joining, by brazing, two metal pieces at least one of which is a powdered metal piece, each piece having a joint surface. The method includes the step of plating the joint...
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4172395 |
Method of manufacturing a rotary rock bit
A rolling cone earth boring bit is produced having a bearing surface that has been infiltrated to a controlled depth. A groove is machined in one of the bearing members. The bearing member is...
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4172719 |
Briquette for spot hardening of powder metal parts
A local zone only of a powdered metal part is hardened by heating the part, in contact with a powdered metal alloy briquette with a surface of the zone to be locally hardened, to the liquidus range...
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4163173 |
Porous electrode body for electrical accumulators
The invention relates to a porous body for electrical accumulators which body shows a new structure comprising at least two cohesive layers, at least one of which is a porous layer of sintered...
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4148971 |
Flame spraying materials and process for producing the same
A flame spraying material consisting of a wire obtained by compacting zinc powder, zinc-aluminum alloy powder or admixed powders of zinc and aluminum or consisting of a composite wire obtained by...
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4147837 |
Elongate composite article
An elongate composite article for treating molten iron has a sintered metal tubular sheath enclosing a core of particulate treating agent.
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4145481 |
Process for producing elevated temperature corrosion resistant metal articles
A process for providing coatings on metal articles whereby the articles will be resistant to corrosion at elevated temperatures. The process involves the application of an overlay on an article...
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