Abstract: The composite wire of the present invention has a malleable metal sheath swaged around a core formed of a uniform particulate mixture including titanium, preferably as an alloy thereof containing at least 65% by weight titanium, and carbon, the amount by weight of titanium present being from about 8 to 24% of the total weight of all the metal in the composite wire and the amount of carbon present in the mixture being at least sufficient to react with substantially all of the titanium to form titanium carbide.

Abstract: A submicron-particle ductile superconductor and method of fabricating the same wherein the submicron particles (e.g., 300 Angstroms) of a superconductor (e.g., NbC) are encapsulated in a metal tube (e.g., copper) and then fabricated down to fine wire in the absence of sintering of reaction annealing. Because of the fluid-like properties of the unsintered submicron-particle powdered core, the composite fabricated wire retains ductility and resistance to fracture while exhibiting superconducting properties approaching those of the bulk material in the core. Multifilamentary composites are obtained by bundling and fabricating the bundle down in a required number of steps.

Abstract: This invention relates to a capsule for pressings pressed by isostatic pressure and to these pressings used for extruding metallic objects, particularly tubes, of stainless steel, the outer and inner wall of the capsule consisting of thin-walled sheet metal, and at least the outer wall having substantially the same strength properties in the axial direction over its circumference and particularly consisting of a spiral-welded tube and being preferrably provided with a bulge which is directed outwardly against the shrinkage occurring during isostatic pressing, and at least on the front end of the capsule an insert being provided, which consists of one or more pieces of a ductile solid material or a ductile material pressed from powder. The invention further relates to a process for the production of such capsules and pressings and to a process for extruding tubes and to the tubes obtained according to this process.

Abstract: The weight of a cast piece, such as a brake caliper casting, is reduced by inserting a core element of lower density than the density of the moulded or cast material into those areas of the cast piece which are not highly stressed when the cast piece is subjected to bending forces. Preferably, the core element is cast in place along with the casting material.

Abstract: A tubular filler rod or filler wire the metal sheath of which is composed of two members, to wit, an outer seamless tube and an inner tube consisting of a strip bent into tube shape and confining a compacted powder core. Also, a method of manufacturing a tubular, powder-cored filler rod or filler wire in which a metal strip is bent to form a trough which first is fitted with a powder composition and then closed to form a tube enclosing a core of the powder composition; the tube is slid into a second, seamless tube which is then submitted to a cold-drawing operation.

Abstract: The present invention relates to lining units used to protect surfaces exposed to intensive wear by solids, gases and liquids.The lining unit is a metallic shell formed with a pipe of rectangular cross section, containing a metallic plate and a wear-resistant composite material, the shell, the metallic plate and the composite material being diffusion-joined one to another.

Abstract: This invention relates to a capsule for pressings pressed by isostatic pressure and to these pressings used for extruding metallic objects, particularly tubes, of stainless steel, the outer and inner wall of the capsule consisting of thin-walled sheet metal, and at least the outer wall having substantially the same strength properties in the axial direction along its circumference and particularly consisting of a spiral-welded tube, and preferably at least on the front end of the capsule an insert being provided, which consists of one or more pieces of a ductile solid material or a ductile material pressed from powder. The invention further relates to a process for the production of such capsules and pressings and to a process for extruding tubes and to the tubes obtained according to this process.

Abstract: A self-bonding flame spray wire capable of forming a readily grindable coating formed of a sheath of aluminum and a compacted powder core containing a major portion of nickel and stainless steel and a minor portion of aluminum and metal oxide. The core may contain from about 10 to 90 percent, and preferably about 61 percent, by weight nickel, about 10 to 90, and preferably 30, percent by weight stainless steel, from 1 to 10 percent by weight, and preferably 5 percent by weight, aluminum, from 1/4 to 10 percent by weight, and preferably 4 percent by weight, of the metal oxide which may, for example, be cobalt oxide or zirconium oxide, and is most preferably zirconium oxide.

Abstract: Metals, particularly ferrous metals, coated for corrosion resistance with coatings containing particulate metal and hexavalent chromium-providing substance can now be made further corrosion resistant, as well as heat resistant, with a topcoat of silica substance. In addition, mar resistance plus improved outdoor weathering is also achieved, without sacrifice to other characteristics, e.g., coating adhesion.

Abstract: Electrically conductive through-holes in a substrate are prepared by (a) laminating a film based plastic photosensitive toner-receptive stratum to at least one surface of the substrate; (b) applying a pressure differential across the stratum covering the substrate holes, the outside pressure exceeding that inside the holes; in either order (c) removing at least one film base or (d) exposing the photosensitive stratum imagewise, (e) adhering metal or catalytic particles to hole walls and image areas, (f) optionally hardening or curing the particulate areas and (g) providing an electrically conductive printed circuit and through-holes, e.g., by plating metal electrolessly, soldering or conjoining the metallized or catalyzed areas.

Abstract: A process for producing a formed member, and a formed member which includes spherical fragments embedded in a metallic matrix is effected through round cold forging. The spheres are arranged in the interspace between a basic support member, which may be a thinwalled inner casing, and an outer casing. Forging of the outer casing causes the material of the support member and the outer casing to be pressed into the spaces between the spheres, densifies the support member and the outer casing, and prestresses the outer casing and spheres, thus allowing the inner casing to be extremely thinwalled. The prestressing of the spheres and outer casing, together with the inner casing imparts a high degree of energy to the casing fragments and to the spheres, affords economies in manufacture and a substantial increase in fragmenting energy at detonation of the formed member.

Abstract: A process for producing a formed member, and a formed member which includes spherical fragments embedded in a metallic matrix is effected through cold annular or round forming. The spheres are arranged in the interspace between a basic support member, which may be a thin-walled inner casing, and an outer casing. Working of the outer casing causes the material of the support member and the outer casing to be pressed into the spaces between the spheres, densifies the support member and the outer casing, and prestresses the outer casing and spheres, thus allowing the inner casing to be extremely thin-walled. The prestressing of the spheres and outer casing, together with the inner casing imparts a high degree of energy to the casing fragments and to the spheres, affords economies in manufacture and a substantial increase in fragmenting energy at detonation of the formed member.

Abstract: 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 be manufactured by sintering the metallic material with the grid reinforcement in either a mold or within the brake disk cup. The internal reinforcement of the frictional module prevents spalling weight loss, friction coefficient decay, or other physical defect as caused by frictional strain during use. The reinforcement material reduces the overall temperature of the disk during use, and aids frictional coefficient of the disk because of the metallic compatibility of the metallic material and grid system.

Abstract: A self-bonding flame spray wire capable of forming a readily grindable coating formed of a sheath of aluminum and a compacted powder core containing a major portion of nickel and stainless steel and a minor portion of aluminum and metal oxide. The core may contain from about 10 to 90 percent, and preferably about 61 percent, by weight nickel, about 10 to 90, and preferably 30, percent by weight stainless steel, from 1 to 10 percent by weight, and preferably 5 percent by weight, aluminum, from 1/4 to 10 percent by weight, and preferably 4 percent by weight, of the metal oxide which may, for example, be cobalt oxide or zirconium oxide, and is most preferably zirconium oxide.

Abstract: 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 compatible with and highly ductile relative to the substrate and which at least during forming, particularly cold rolling, is thick enough and adherent to permit substantial reductions without exposing the hard-to-work substrate. The article is made by filling a container with prealloyed metal powder having the composition desired in the substrate including an ingredient which makes it hard to work. The container has a compatible composition, the substrate composition without the hard-to-work ingredient being illustrated. The container is then sealed, hot compacted, hot rolled and then cold rolled to final thickness to provide a shaped article having a substrate of the hard-to-work composition with an integral cladding metallurgically bonded thereto.

Abstract: A tool joint hardfacing containing sintered tungsten carbide granules embedded in an alloy steel matrix, with the surface substantially free of protruding granules to decrease casing wear during well drilling. The hardfacing is applied in a single application by rotating the drill pipe, providing an arc between a consummable steel wire and the pipe to create a weld puddle, and reciprocating the wire parallel to the pipe axis to create a band. Sintered tungsten carbide granules are gravity fed from an orifice directly into the arc and precipitate toward the bottom of the matrix to provide a smooth surface. The bottom of the matrix appears to be harder than the top.

Abstract: A nickel-base wear and corrosion resistant alloy is provided containing by weight about 20% to 35% Cr, about 1% to 8% Si, about 1.7% to 3.5% C, 0 to 15% W and the balance essentially at least about 40% nickel, the amount of carbon present in said composition being stoichiometrically related to the chromium content to provide carbides based on the formula M.sub.7 C.sub.3, wherein M comprises essentially chromium, the amount of chromium in said M.sub.7 C.sub.3 compound ranging from about 65% to less than about 100% of the total chromium in said composition, the melting point of said alloy being less than about 1350.degree. C. The alloy has particular use in welding consumables for hard facing, for valve seats, for wear resistant sleeves and bushings (castings) and other uses.

Abstract: The invention relates to an iron/lithium anode material for use in thermal batteries which comprises about 15% to 30% by weight lithium. Thermal batteries made from such anodes are also disclosed. The anode comprises particulate iron bound together by the surface tension of the lithium which wets the iron particles. A method is disclosed for the manufacture of the anode material which includes adding iron powder to a molten lithium and mixing to form a homogeneous mixture. The mixture is cooled to form an ingot and rolled into strips for fabrication into anode configurations.

Abstract: An austenitic stainless steel which is wrought or cast, and annealed, condition exhibits excellent galling resistance, excellent stress corrosion resistance in chloride-containing environments, good resistance against intergranular corrosion, good high temperature oxidation resistance, and a high work hardening rate. The broad composition range is, in weight percent, about 13% to about 19% chromium, about 13% to about 19% nickel, 0.5% to about 4% manganese, 3.5% to about 7% silicon, up to about 0.15% carbon, less than 0.04% nitrogen, about 0.05% maximum phoshorus, about 0.05% maximum sulfur, and balance essentially iron except for incidental impurities. The steel can be readily worked with conventional equipment and has particular utility for applications in which moving metal-to-metal contact, corrosive attack and/or elevated temperature are encountered in combination. The steel can also be cast into articles of ultimate use, or utilized in powder metallurgy techniques.

Abstract: Wear and corrosion resistant coatings are obtained using the plasma or d-gun techniques and applying a coating material consisting of carbides and nickel-containing base alloy having 6-18 wt.% boron.

Abstract: Method for hard-facing substrates is disclosed using a hard facing material consisting essentially of combined vanadium and carbon and minor amount of uncombined carbon with up to 15% by weight cobalt.

Abstract: A method and a capsule and a blank for producing tubes, bars or similar profiled elongated dense metal objects, preferably in stainless steel qualities, by single or multi-stage extrusion of capsules which are filled with powder of metals or metal alloys or mixtures thereof or with mixtures of powder of metals and/or metal alloys with ceramic powder and sealed and which are adapted in their form to the desired object or intermediate product, as starting material a powder being used which consists at least predominantly of substantially spherical grains and the capsule filled with said powder and sealed being compressed by means of cold-isostatic pressure acting all round until the density of the powder reaches at least 80% of the theoretical density.

Abstract: 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 enclosing said compacted powders in an aluminum covering.

Abstract: An elongate composite article for treating molten iron has a sintered metal tubular sheath enclosing a core of particulate treating agent.

Abstract: A method and a capsule and a blank for producing tubes, bars or similar profiled elongated dense metal objects, preferably in stainless steel qualities, by single or multi-stage extrusion of capsules which are filled with powder of metals or metal alloys or mixtures thereof or with mixtures of powder of metals and/or metal alloys with ceramic powder and sealed and which are adapted in their form to the desired object or intermediate product, as starting material a powder being used which consists at least predominantly of substantially spherical grains and the capsule filled with said powder and sealed being compressed by means of cold-isostatic pressure acting all round until the density of the powder reaches at least 80% of the theoretical density.

Abstract: A welding wire constituted by a core of welding powder enclosed by a mantle of metal is produced by forming an upwardly open metal channel composed of an outer channel and an inner channel abutting against the inner surface of the outer channel and having lateral flanks of a height which is about half the height of the lateral flanks of the outer channel, filling the inner channel with the powder, introducing a profiled metal band into the open channel which overlaps the powder in the inner channel and which engages the flanks of the latter at inner faces thereof so that the powder is enclosed by the inner channel and the profiled metal band, and bending upper longitudinal edges of the outer channel into abutment with each other. The longitudinal edges of the outer channel may be subsequently welded to each other, especially if the cross-section of the thus-produced wire is subsequently considerably reduced by passing it through drawing dies or the nip of pressure rolls.

Abstract: A method and apparatus for use in the extrusion of billets having a powder filled container with the nose cap having a shaped projection extending into the container and the tail cap having a concave portion substantially corresponding to the shape of the nose cap. A filler tube for the container is provided in the tail cap.

Abstract: A metallic material, particularly useful for electrical contacts, comprises a matrix metal, for example silver or copper, with additives embedded therein in powder form. However, while being in powder form the additives are arranged in elongate fiber like lengths preferably parallel fiber like lengths. A method of producing such a distribution is to fill a tube of the matrix metal with the powder and draw it out to wire thickness, bundle a number of such wires together and fuse the outer coverings to form a continuous matrix with embedded fiber like lengths of powder.

Abstract: The invention is concerned with a welding flux composition comprising a first alloy including iron, at least two metals reactive with oxygen under welding conditions and selected from the group consisting of aluminum, titanium, zirconium and boron and a weld improving metal selected from the group consisting of magnesium and manganese, said first alloy comprising from about 1 percent to about 4.5 percent by weight of the flux composition. The invention is also concerned with a weld forming composition comprising a metal tube having therewithin a welding flux as set out above. The invention is further concerned with a process for reducing particulate matter produced during the welding operation, comprising a welding flux used in said operation including from about 1 percent to about 4.5 percent by weight of the above first alloy.

Abstract: A new hot isostatic pressing method produces sintered material having a very fine structure as well as uniform properties by forming a unique capsule such as a titanium capsule of metal over a presintered material for sintering a ceramic cutting tool material is disclosed.

Abstract: Flux-cored wire as mentioned below, in which a sheath of steel strip is filled with a powder, a selection of iron powders or earth carbonates or fluorides and ferro-metallic deoxidizers and arc stabilizers are added and the mixture is baked at about 570.degree. to 620.degree. C, specific compositions as detailed in the description being used in the powder, the powder specifically having added to it 1 to 3% by weight of powder of atomized silicate, and the sheath being of low-carbon or low-alloy steel, the whole being sifted preferably at 100 mesh.

Abstract: An article for insertion into and inoculating molten metal is an elongated steel conduit having ferro-silicon material within the conduit. The ferro-silicon material has a silicon content greater than about 75% by weight and is compacted within the conduit to a magnitude sufficient for increasing the density at least 10% above the tapped density of said material.

Abstract: A composite ground engaging tool is disclosed including a first plate having leading and trailing end portions, first and second surfaces, and a cutting edge on the leading end portion, a second plate having leading and trailing end portions, first and second surfaces, and a cutting edge on the leading end portion, the plates being substantially coextensive and of a construction sufficient for spacing the leading end portions from each other during contacting of the first surfaces and being connected together to define a deep slot between them, and a wear-resistant member disposed within the slot and secured to the plates.

Abstract: A method for producing multilayered contacts for medium-voltage vacuum power circuit breakers is provided comprising impregnating under vacuum with oxygen-free, liquid copper, a composite body of metal powders consisting of at least 35% by volume of a metal selected from the group consisting of chromium and vanadium and at least one metal selected from the group consisting of chromium, vanadium, cobalt, nickel and iron, in a crucible comprised of a metal selected from the group consisting of iron, steel, and chromium-nickel steel; and removing at least part of the crucible to expose a contact surface.

Abstract: A rod for hard-facing substrates is disclosed using a hard facing material consisting essentially of at least one vanadium carbide. In a particular embodiment of the invention tungsten is present in the hard facing material in solid solution with vanadium carbide.

Abstract: A composite reinforced with polycrystalline alumina fibers in a matrix of an aluminum alloy containing 0.5-5.5% by weight of the matrix of lithium is prepared by infiltrating alumina fibers with a molten alloy containing aluminum and 1-8% by weight of lithium for a time sufficient to form a reaction sheath on the fibers of a thickness less than about 15% of the total fiber diameter.

Abstract: Soldering wire constituted by a core of powder and a metallic tube enclosing the core of powder is produced by substantially filling an elongated upwardly open metal channel with the powder and introducing a profiled band into the thus filled channel which overlaps the powder at the open end of the channel and which engages the inner faces of the channel to keep the powder, during closing of the channel by bending upper longitudinally extending edges thereof into abutment with each other and subsequently welding these edges to each other, away from the longitudinal edges.

Abstract: Brazed aluminum composite having improved resistance to intergranular corrosion. The core alloy consists essentially of from 1 to 1.5% manganese, from 0.1 to 0.4% chromium, from 0.1 to 0.4% copper, from 0.01 to 0.6% silicon, from 0.01 to 0.7% iron, balance essentially aluminum. The cladding brazing alloy consists essentially of from 4 to 14% silicon, from 0.05 to 0.2% bismuth and the balance essentially aluminum. The brazed alloy composite provides galvanic protection against intergranular corrosion.

Abstract: A composite zinc-aluminum dispersion plated steel sheet and a method of producing same are disclosed. The plated steel sheet comprises an electrolytical zinc plated layer containing 1.5 to 70% by weight of aluminum dispersed therein. The method comprises adding aluminum powder to an electrolytical zinc plating bath composition, dispersing the aluminum powder into the plating bath to provide a composite zinc-aluminum dispersion plating bath, and electrolytical treating a steel sheet in the composite zinc-aluminum dispersion plating bath while agitating it. The plated steel sheet enhances corrosion resistances and does not show any spangles which impair the appearances after subsequent painting of the plated steel sheet.

Abstract: A method of making aluminum castings having a self-fused high silicon content in the interior matrix near and at the surface. A sand core is coated with a tacky, low-ash, low-volatile adhesive along a predetermined zone. Silicon dust particles are deposited on said adhesive in bonded relation. Molten aluminum is cast into a mold cavity containing the coated core. After mold stripping, the silicon particles are exposed as metallurgically bonded to the aluminum but along an ultra-thin depth. At least some of the exposed silicon particles are machined to expose a planar facet and thereby increase the projected exposure of the silicon particles along the machined plane. The resulting product has a reduced shrinkage characteristic (typical of aluminum alloys having a high proportional precipitated silicon).