Abstract: A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in an alpha-beta titanium alloy matrix which comprises the steps of providing a rapidly-solidified foil made of an alpha-beta titanium alloy, fabricating a preform consisting of alternating layers of the rapidly-solidified foil and the filamentary material, and applying heat and pressure to consolidate the preform, wherein consolidation is carried out at a temperature below the beta-transus temperature of the alloy.

Abstract: The Cr-series stainless steel sheet heretofore produced by a method including annealing a hot-rolled strip for decomposing the .alpha.'-phase or .gamma.-transformed phase therein, can be produced by omitting this annealing. In the method according to the present invention, a thin casting is cooled from the solidification temperature to the end temperature of the .gamma.-phase-precipitation at a cooling speed at least equal to the air cooling-speed, thereby avoiding the .gamma.-phase-precipitation. Then, the precipitation treatment for precipitating the supersaturated C, N, and S, or the heating to the .alpha.+.gamma. dual phase-temperature region for precipitating the .gamma.-phase, is carried out.

Abstract: A method is provided for removal of surface oxide from a continuously cast copper bar preparatory to inline hot rolling, wherein solidified bar continuously advancing from a continuous caster is directed to a continuous hot rolling mill, comprising: passing said advancing bar, being at hot rolling temperature, through a spray zone of selected quench capacity and impulse, such that for each segment of said bar passing through said spray zone, said oxide is quenched to a black heat but is not ablated and said underlying bar is subjected to a shallow quench; said spray zone being situated in close proximity to but selectively spaced upcourse from the first rolls of said hot rolling mill such that there is insufficient time for substantial reheating of said quenched oxide during the approach to said first rolls; whereupon as quenched segments of the advancing bar progressively approach said first rolls and said underlying bar begins to deform just prior to roll contact, said oxide spalls off the bar surfaces subs

Abstract: A process for producing a liquid-solid composition comprising heating a liquefiable material sufficiently to form a liquid phase with solid dendritic particles therein without completely liquefying the material and subjecting said liquid-solid material to a shearing action sufficient to break at least a portion of the dendritic structures. The process includes injection molding, forging or die casting the material produced by the process.

Abstract: A process for forming a liquid-solid composition from a material which, when frozen from its liquid state without agitation, forms a dendritic structure. A material having a non-thioxotropic-type structure, in a solid form, is fed into an extruder. The material is heated to a temperature above its liquidus temperature. It is then cooled to a temperature less than its liquidus temperature and greater than its solidus temperature, while being subjected to sufficient shearing action to break at least a portion of the dendritic structures as they form. Thereafter, the material is fed out of the extruder.

Abstract: An ultra-light structure is produced by continuously molding a greensand core, forming a material in the mold pattern in the core which solidifies to form a solidified framework, and removing the greensand core.

Abstract: A method is provided for continuously casting aluminum alloys particularly useful for computer memory disk stock by a combination of casting at thinner gauges and much higher speeds than usual. Sheet quality is vastly improved, surface ripples are avoided, and casting rate increased as much as 50%. The method is characterized by the thickness of the cast sheet being in the range of from 4 to 6 millimeters and the casting rate being in the range of from 0.8 to 1.8 meters per minute. Chlorides in the molten metal are coalesced and oxides filtered to keep the inclusion rate in the cast sheet very low.

Abstract: A method for producing a metallic strip is disclosed. A metallic melt containing above about 20% by weight of iron is formed into a strip so that fine iron particles are distributed throughout. The strip may be rolled to elongate the iron particles.

Abstract: There is disclosed a method of continuously casting metal rods wherein the metal is forced to pass through an elongate tube while in a molten state, a cooling medium is circulated about the tube and the metal as it emerges from the tube in order to form a continuous cast rod, and the rod is passed through a bath of another metal whose temperature is sufficiently lower than the melting point of the rod to cool the rod below its critical temperature.

Abstract: The present invention is directed to a continuous casting process for the production of semi-finished articles or blanks of hard steels such as bars, wires or tubes having a carbon content higher than 0.75%. In this process, the blank obtained by continuous casting is submitted to a secondary cooling under the mold, cut and within three minutes after cutting, introduced into a reheating furnace in which its temperature is brought to a level slightly lower than the solidus temperature, maintained for a short period, and finally elongated in the hot condition. In a preferred embodiment, the liquid steel is stirred during the continuous casting operation by means of magnetic fields induced in the steel by electromagnetic coils disposed around the blank thereby facilitating dissolution of carbides contained within the liquid steel.

Abstract: An improved method of and apparatus for striping hot steel slabs on the runout table of a continuous caster employs a torch support and drive mechanism adapted to support a scarfing torch for movement at a uniform rate across the surface of a slab maintained in a stationary position on the runout table. A radiation thermometer supported for movement with the torch is focused to continuously monitor the striping operation by detecting flashes or temperature increases resulting from reduction of alumina inclusions during the striping process and transmitting an electrical signal to a microprocessor which converts the signal to electrical impulses that are counted, recorded or otherwise utilized to evaluate the slab being striped. The microprocessor controls operation of the apparatus during the striping process to provide a more reliable evaluation of the slab.

Abstract: An ultra-light structure is produced by continuously molding a green sand core, forming a material in the mold pattern in the core which solidifies to form a solidified framework, removing the green sand core and wrapping the resultant solidified framework structure in a material.

Abstract: A molten metal stream is fed downwardly, especially essentially vertically, into a double-ended, chilled horizontal mold where the molten metal is formed into two strands which are cooled and simultaneously bidirectionally withdrawn from opposed ends of the horizontal mold. The infed hot molten metal stream is deposited within the double-ended horizontal mold such that a so-to-speak hot wall forms at the immediate vicinity of the inflow region where the molten metal enters the horizontal mold. This hot wall precludes formation of a strand shell or skin which otherwise would undesirably interconnect the two formed strands, so that not only is the resistance to mold oscillation decreased, but the individual strands can be cleanly withdrawn from each side of the mold without the danger of undesired and uncontrolled interaction arising between the two withdrawn strands and without the need to have to rupture any such interconnecting strand shell or skin.

Abstract: A process and apparatus for forming a thin-walled, elongated member having superior strength properties from an age hardenable copper base alloy is described herein. A slug or billet of a slurry cast, age hardenable copper base alloy is formed into a semi-solid slurry having about 10% to about 30% of the alloy in a liquid phase. The semi-solid slurry is then thixoforged to form the thin-walled, elongated member. Thereafter, the member is age hardened to provide a product having desired strength properties. The process and apparatus of the instant invention may be utilized to form cartridge casings.

Abstract: A process for removing an adhered substance from steel ingots, which comprises heating or cooling a steel ingot after the casting under such conditions that the heating or cooling rate at the surface layer portion of the steel ingot is not less than 2.degree. C./sec and the temperature difference between the starting and end points is not less than 300.degree. C.

Abstract: A method and an apparatus for removing fine cold shut cracks on a horizontally and continuously cast steel strand, using ejection of a plurality of metal shots, comprises: horizontally and intermittently withdrawing a cast steel strand from a horizontal mold by a plurality of cycles each comprising a pull and a push, cooling the cast steel strand in a cooling zone provided following the horizontal mold on the same horizontal level as that of the horizontal mold, increasing the temperature of the surface portion of the solidified shell of the cast steel strand in a heat-restoring zone provided following the cooling zone on the same horizontal level as that of the cooling zone, to soften the surface portion of the solidified shell of the cast steel strand, and then continuously ejecting a plurality of metal shots from a plurality of shooters in a shooting zone provided following the heat-restoring zone on the same horizontal level as that of the heat-restoring zone onto the cast steel strand, to weld fine cold

Abstract: A method and apparatus is described for forming non-ferrous, constant section, stackable auto-clamping blocks. The method advantageously utilizes a movable carriage having in addition to cutter means, a pair of jaws which are each generally shaped like a combined prism-trihedron to form mating surfaces in the formed blocks which allows stacking.

Abstract: A continuous process is disclosed for the recovery of an aluminum alloy from aluminum scrap containing more than one alloy. The recovery is made in a manner which will conserve energy. The process comprises providing a feedstock containing at least two components therein comprised of different aluminum alloys, the components having at least parts thereof joined to each other. The feedstock is treated to cause the joined components to become detached from each other. One of the detached components is separated from the remainder of the feedstock, melted and thereafter continuously cast without substantially upgrading the composition thereof to provide a cast alloy having a composition substantially the same as that from which the separated component was fabricated. The treating may be accomplished by heating the feedstock to a temperature sufficiently high to render fracture sensitive the component having the lowest incipient melting temperature.

Abstract: The present invention relates to a bow type continuous casting process using a curved mold, wherein molten steel is continuously cast into the curved mold to obtain a curved strand, e.g. a slab, having a thickness of not less than 200 mm.The improvement of this invention resides in that the curved strand is straightened at a plurality of points at regions of the strand where the thickness of the solidified shell is not more than 60 mm. The obtained strand can be directly supplied to rolling without the necessity of removing the defects from the strand or without reheating the strand.

Abstract: Molten material is fed into an elongated outwardly open mold, moving in a predetermined path, and is thereafter conveyed by the mold movement at least partway through a region of such path over which a closure for the outward opening of the mold moves along therewith, the material concurrently being cooled to become solidified. The movements of such mold and closure cause the solidified material to be extruded through stationary die means disposed in such region. Such material may solder metal formed into a tube into which is inserted rosin, the same heat exchange medium being used both to cool the metal prior to its extrusion and to keep the rosin molten prior to such insertion thereof.

Abstract: A ferrous feedstock for subsequent use in a melting or smelting furnace is produced by casting molten ferrous material continuously onto the surface of an elongate channel-shaped substrate moving continuously past a casting station. The cast material solidifies to form a strip which is separated continuously from the substrate and subsequently fragmented to produce ferrous segments of a size suitable for feeding to a melting or smelting furnace.

Abstract: The invention relates to a process for the production of bands or sheets of isotropic mechanical properties from copper and copper alloys, such bands or sheets being subjectable to intensive cold shaping. According to the invention the ZrB.sub.2 (zirconium boride) content of the melted metal bath is adjusted by the addition of zirconium boride to a level between 0.01% by weight and 0.075% by weight, and if desired, not more than 50% by weight of the zirconium content of the added ZrB.sub.2 is replaced by one or more of the metals Ti, V, Nv, Ca, Mg and Co, then, if desired, zirconium is added to the metal bath in a stoichiometric ratio calculated for the lead content of the alloy exceeding 0.015% by weight, then the metal bath containing the additives is solidified in the form of a band, and if desired, an inert gas atmosphere is maintained in the heat stabilizing furnace of the casting equipment and/or an inert gas lock and secondary cooling are applied during the solidification of the metal bath.