Including Product Cutting Or Breaking Patents (Class 164/460)
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Patent number: 5230382Abstract: A process for producing individual eccentric cams of cast material for assembled camshafts, in which a bar having the cross-section of a cam is produced by continuous casting and where individual cams are separated from the solidified bar.Type: GrantFiled: April 16, 1992Date of Patent: July 27, 1993Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventor: Helmut Swars
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Patent number: 5065811Abstract: A manufacturing line for making hot rolled steel strip including a mold for the continuous casting of steel strip, a strip guidance device located downstream from the mold for the diversion of the cast strip into a horizontal plane, a crosscutting device, a temperature equalization furnace, and a rolling mill. To reduce capital costs, energy consumption and space requirements, and to avoid metallurgical errors in processing, a curved temperature equalization furnace surrounds the strip guidance device. A straight temperature equalization furnace horizontally adjoins the curved temperature equalization furnace, and includes a means for crosscutting the strip prior to its exit from the temperature equalization environment for subsequent rolling.Type: GrantFiled: December 17, 1990Date of Patent: November 19, 1991Assignee: SMS Schloemann-Siemag AktiengesellschaftInventors: Heinrich Scholz, Rudolf Guse
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Patent number: 5049335Abstract: A magnetic material melt is solidified by cooling the material from two opposing surfaces while deforming the material by applying compressive pressure to the two opposing surfaces. Twin roller quenching is a preferred method for producing the flakes. The flakes exhibit strong texture normal to their surface, that is, there is a high degree of alignment of the magnetically easy axes of the crystals within the polycrystalline flake. The strong crystal orientation appears to result both from directional solidification in a thermal gradient and uniaxial deformation of the solid phase in the twin rollers. Magnetization studies on individual flakes show intrinsic coercivities of 14 kOe and a nearly 50% higher remanance for field normal to the flake surface than in the flake plane. Splat quenching is another suitable technique for carrying out the invention.Type: GrantFiled: January 25, 1989Date of Patent: September 17, 1991Assignee: Massachusetts Institute of TechnologyInventors: Toshiro Kuji, Robert C. O'Handley, Nicholas J. Grant
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Patent number: 4946575Abstract: Metallic pieces of predetermined shape, e.g., anodes, are continuously manufactured from molten metal, e.g., impure molten copper, by continuously casting the molten metal in an inclined mold cavity (13) formed by two endless moving belts (14( and (15) and by two moving side dams (20) and (21) so as to produce a hot metallic strip (4), and by cutting the hot strip, when it has left the mold cavity, with at least one plasma torch (10) along a profile (27) such that anodes (11) with a low waste coefficient are obtained. In this way, flat copper anodes with a thickness of between 40 and 50 mm can be produced.Type: GrantFiled: December 13, 1988Date of Patent: August 7, 1990Assignee: Metallurgie Hoboken-OverpeltInventor: John M. A. Dompas
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Patent number: 4915161Abstract: A method and apparatus for notching and removing the fin from a continuously cast metal bar, whereby the fin is broken into small pieces for easy handling by using a driven, blade carrying guide assembly.Type: GrantFiled: July 25, 1988Date of Patent: April 10, 1990Assignee: Southwire CompanyInventors: Vernon J. Miller, Covert E. Fender
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Patent number: 4898228Abstract: Continuously cast steel billet is sectioned to length while the core of the casting is molten by being pinched-off to seal the ends of the casting sections and contain molten core metal, effecting thereby energy conservation and economic savings in the production of steel products. The inventive method and means avoids tensilely stressing the casting lessening the risk that the skin of the casting will be caused to rupture from being stretched and that molten metal from the core of the casting will spill to ruin the casting and endanger personnel and equipment.Type: GrantFiled: November 1, 1988Date of Patent: February 6, 1990Inventor: Fred H. Wuetig
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Patent number: 4830087Abstract: A method of continuous casting of ingots having a cross section with a high width to height or thickness ratio includes the steps of using a mold with a corresponding cross section and a casting pipe with bottom or near-bottom outlets and having laterally a minimum distance from the wall of the mold; preheating the casting pipe prior to casting to a temperature being at least approximately similar to the temperature of the metal later to be poured into the mold; initially closing the bottom outlet of the mold prior to startup; pouring molten metal into the mold for filling the mold up to a particular level while continuing heating the casting pipe; commencing withdrawal of an ingot from the mold along a curved path when the level of molten metal in the mold has reached the level of the outlet or outlets of the casting pipe.Type: GrantFiled: December 19, 1983Date of Patent: May 16, 1989Assignee: Mannesmann AGInventors: Dieter Kothe, Bernhard Krueger, Dietmar Lohse, Gerd Moellers, Fritz Pleschiutschnigg, Wolfgang Reichelt, Peter Vos-Spilker, Elmar Wagener
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Patent number: 4800949Abstract: The invention concerns a method and apparatus for thermally treating cast-iron pipes formed in a continuous casting die. The pipe or tube undergoes tempering by passing through a vat which is located downstream from the continuous casting die. The vat contains a continuously cooled bath of fluidized sand or the like which lowers the temperature of the tube in a uniform manner and makes it possible to obtain a very precise and homogeneous tube structure.Type: GrantFiled: December 3, 1987Date of Patent: January 31, 1989Assignee: Pont-A-Mousson S.A.Inventors: Claude Bak, Rio Bellocci, Yves Gourmel, Michel Pierrel
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Patent number: 4775000Abstract: An apparatus and process for the continuous casting of tubular shapes wherein molten metal from which the tubular shape is formed is centrifugally deposited adjacent to the outlet of a fluid-cooled mold by a nozzle assembly, with the metal being cooled and rapidly solidified by the mold to form a cylindrical shell upon which additional metal is deposited to incrementally build the thickness of the tubular shape. The tubular shape being formed is withdrawn continuously from the mold, and is further cooled by coolant directed thereon. The nozzle assembly may be rotated to discharge the molten metal or, alternatively, the mold may be rotated as the metal is deposited thereon. Single-layer tubular shapes, with or without reinforcing material, may be cast and multiple-layer composite shapes may be produced having layers of different material composition and thicknesses. An inert atmosphere is maintained to prevent oxidation of the molten metal.Type: GrantFiled: August 27, 1986Date of Patent: October 4, 1988Inventor: Jack D. Ayers
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Patent number: 4766947Abstract: A method and apparatus for producing a rapidly solidified microcrystalline metallic tape. The method provides for molten metal to be continuously poured through a nozzle onto surfaces of cooling members to form a rapidly solidified metallic tape and then coiling the tape on a reel. According to this method, the metallic tape is secondarily cooled and rolled before the coiling. The apparatus includes a device for cutting out a non-steadly portion of the metallic tape, a device for measuring tape thickness, a secondary cooling member, and a device for controlling the tension of the metallic tape.Type: GrantFiled: January 30, 1987Date of Patent: August 30, 1988Assignee: Kawasaki Steel CorporationInventors: Kiyoshi Shibuya, Fumio Kogiku, Michiharu Ozawa
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Patent number: 4724895Abstract: Lead or bismuth fumes emitted from steel during a strand casting operation are confined, collected and removed.Type: GrantFiled: May 14, 1986Date of Patent: February 16, 1988Assignee: Inland Steel CompanyInventor: John L. Mulesa
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Patent number: 4633933Abstract: A continuous casting plant comprising at least one casting line presenting a curved guide path for bending the casting leaving the casting mold from a substantially vertical direction to a rectilinear, substantially horizontal direction through a straightening machine and across a following cutting device for shearing the casting in a number of consecutive sections of predetermined length. Between the straightening machine and the cutting device a stepwise feeding device is provided for feeding the tail-end section of the casting across the cutting device and for operating the cutting device after each step so as to shear the tail-end section of the casting into comparatively small stubs which are discarded beneath the path of the casting by a chute.Type: GrantFiled: February 15, 1985Date of Patent: January 6, 1987Assignee: Continua International Continuous CastingInventor: Piero Colombo
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Patent number: 4598761Abstract: A gas cutting machine for cutting a cast strand includes a torch and is movable downward together with a cut portion of the cast strand. In the neighborhood of the torch is located a movable hood which is movable in synchronism with vertical lifting operation of the gas cutting machine, and an expansible sludge discharge pipe and an expansible suction duct communicated with a suction blower are mounted on the movable hood. A divisional dummy bar is utilized and includes an upper and lower divisional dummy bar, and a connector for connecting the divisional dummy bars together. The connector comprises an upper member and a lower member, the upper member having in its inner cavity a pair of levers pivotally supported on lever shafts and the lever havign a locking roller at the lower end thereof. The lower member includes a hooking head held by a pair of locking rollers.Type: GrantFiled: December 29, 1983Date of Patent: July 8, 1986Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Yoshinobu Ishihara, Kazuya Minami, Shuntaro Matsumoto
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Patent number: 4589469Abstract: In a method of continuously casting unrefined electrodes in quantity for use in the electrolytic refining of metal in which a metal e.g. copper, strip is continuously cast and cut at spaced positions along its length to form electrodes, a substantial saving in metal is effected by casting the strip in such a way that, in longitudinally spaced minor portions of its length, the strip has at least one hole, recess in at least one of its side edges, or region of substantially reduced thickness as compared with that of the major portion of its length.Type: GrantFiled: July 6, 1984Date of Patent: May 20, 1986Assignee: BICC Public Limited CompanyInventors: William Nelson, John P. Bearpark
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Patent number: 4573523Abstract: A continuous centrifugal casting machine employs a rotating water cooled mould in which a tubular mould cavity is formed by a number of pallet conveyors, each having an upper run defining a part cylinder. The conveyors are driven so that the tubular mould which they form moves with the casting, thus eliminating relative movement between the mould and the casting. The conveyors are housed inside a rotating drum so that centrifugal force causes molten metal such as steel poured against the wall of the mould cavity at one end to form a comparatively thin walled tube which is withdrawn from the other end of the mould cavity. The tube may be spirally slit to form sheet.Type: GrantFiled: November 5, 1984Date of Patent: March 4, 1986Assignee: Hatch Associates Ltd.Inventor: Felim McCaffrey
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Patent number: 4540037Abstract: 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.Type: GrantFiled: September 27, 1982Date of Patent: September 10, 1985Assignee: Concast AGInventor: Carl Langner
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Patent number: 4537242Abstract: 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.Type: GrantFiled: May 31, 1984Date of Patent: August 27, 1985Assignee: Olin CorporationInventors: Michael J. Pryor, Joseph Winter, Jonathan A. Dantzig
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Patent number: 4518028Abstract: 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.Type: GrantFiled: November 19, 1981Date of Patent: May 21, 1985Assignee: Aluminium PechineyInventor: Francois Bucourt
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Patent number: 4498522Abstract: In a method of continuously casting unrefined electrodes in quantity for use in the electrolytic refining of metal in which a metal e.g. copper, strip is continuously cast and cut at spaced positions along its length to form electrodes, a substantial saving in metal is effected by casting the strip in such a way that, in longitudinally spaced minor portions of its length, the strip has at least one hole, recess in at least one of its side edges, or region of substantially reduced thickness as compared with that of the major portion of its length.Type: GrantFiled: June 28, 1982Date of Patent: February 12, 1985Assignee: BICC Public Limited CompanyInventors: William Nelson, John P. Bearpark
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Patent number: 4463796Abstract: The continuous metal casting method includes continuously forming a portion of an ingot in the open-ended mold of the primary cooling zone under pressure, with a cold junction being formed at the end of the portion. The portion of the ingot is intermittently drawn into the secondary cooling zone, to produce the ingot subdivided by the cold junctions into portions of a required length. In the intervals between the successive drawing cycles, the ingot is treated in the secondary cooling zone to effect constrained shrinkage, while producing in the cold junction areas a bending strain of a value not short of the yield strength of the metal. The plant includes a vessel for the metal to be cast, communicating with the open-ended mold of the primary cooling zone.Type: GrantFiled: February 22, 1982Date of Patent: August 7, 1984Inventors: Evgeny A. Korshunov, Alexandr N. Kuznetsov, Maxim B. Ovodenko, Gennady G. Kuzmin, Valery P. Kostrov, Alexandr N. Timofeev, Valery L. Bastrikov, Tatyana V. Meschaninova
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Patent number: 4430388Abstract: A hollow blank, preferably of steel, for continuously casting by pouring molten metal into a continuous casting mold, withdrawing a shell containing liquid metal continuously from the lower end of the mold, directing the shell along a curved path, rotating the liquid metal in the mold, rotating the liquid metal in the shell at a location spaced from the mold to form a hollow in the liquid metal, and allowing the metal to solidify against the inside of the metal shell in the region of the hollow, to form a hollow metal blank. The blank thus formed can be straight or curved, and is cut off after the final solidification. An apparatus for forming the blank is disclosed and the blank thus formed has unique good quality surface characterictics free of dendrites.Type: GrantFiled: January 15, 1979Date of Patent: February 7, 1984Assignee: Creusot-Loire-VallourecInventor: Michel Mola