Fe-base Has 0.01-1.7% Carbon (i.e., Steel) Patents (Class 428/677)
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Patent number: 6143427Abstract: A laminated material for a plain bearing includes a running layer characterized by a high degree of hardness and good embedding and adaptation properties and high corrosion resistance. The laminated material is provided with a bearing material applied by sputtering directly to a carrier material, the bearing material comprising a matrix material of copper or copper base alloy with finely divided lead inclusions. The matrix material is isotropically crystallized with polygonal grain shape. The mean crystallite diameter is 2-4 .mu.m and the grain size of the lead inclusions is 0.2-0.4 that of the crystallite diameter.Type: GrantFiled: December 23, 1997Date of Patent: November 7, 2000Assignee: Federal-Mogul World Wide, Inc.Inventor: Gerd Andler
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Patent number: 6129998Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a steel alloy substrate layer and a copper foil layer disposed on at least one surface of the substrate layer. The foil layer is attached onto the surface of the substrate layer by a plurality of occurrences of adhesive material disposed along the boundary of the foil layer such that gaps are defined between occurrences of the adhesive material.Type: GrantFiled: April 10, 1998Date of Patent: October 10, 2000Assignee: R.E. Service Company, Inc.Inventor: Mark S. Frater
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Patent number: 6129990Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a steel substrate layer and a copper foil layer releasibly bonded to at least one surface of the substrate layer.Type: GrantFiled: November 17, 1998Date of Patent: October 10, 2000Assignee: R. E. Service Company, Inc.Inventor: Mark S. Frater
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Patent number: 6127051Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a metal substrate layer and a copper foil layer disposed on at least one surface of the substrate layer. The foil layer is attached onto the surface of the substrate layer by a plurality of metal-to-metal bonds disposed along the boundary of the foil layer such that gaps are defined between the bonds.Type: GrantFiled: October 29, 1998Date of Patent: October 3, 2000Assignee: R. E. Service Company, Inc.Inventor: Mark S. Frater
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Patent number: 6060179Abstract: Disclosed is a Cu--Pb alloy bearing and a producing method thereof. The Cu--Pb alloy bearing consists of a backing metal layer and a Cu--Pb bearing alloy layer which is bonded to the backing metal layer and whose matrix contains dispersed Pb-phase grains. Within an at least 30 .mu.m thick surface region of the Cu--Pb bearing alloy layer, the Pb-phase grains comprise at least one of In and Sn in an amount or a total amount of not less than 2 wt %, respectively, which are elements added into the Pb-phase grains by migration.Type: GrantFiled: June 17, 1998Date of Patent: May 9, 2000Assignee: Daido Metal Company Ltd.Inventors: Hideo Tsuji, Tatsuo Yamada, Hideo Ishikawa, Takayuki Shibayama
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Patent number: 6048416Abstract: Steel, steel wire, and a process for forming a drawn wire, especially tire-reinforcing wire of diameter smaller than 0.4 mm, by drawing a steel of the following composition by weight: 0.005%.ltoreq.carbon.ltoreq.0.050%; 0.005%.ltoreq.nitrogen.ltoreq.0.050%; 0.1%.ltoreq.silicon.ltoreq.2.0%; 0.1%.ltoreq.manganese.ltoreq.5%; 5%.ltoreq.nickel.ltoreq.12%; 10%.ltoreq.chromium.ltoreq.20%; 0.01%.ltoreq.copper.ltoreq.4%; 0.01%.ltoreq.molybdenum.ltoreq.3%,the base wire being subjected to:drawing to a cumulative deformation ratio .epsilon. of larger than 2 and smaller than 4,an intermediate annealing treatment at above 700.degree. C.final drawing to a cumulative deformation ratio .epsilon. of smaller than 4.5 and larger than 3.Type: GrantFiled: April 29, 1999Date of Patent: April 11, 2000Assignees: Ugine-Savoie Imphy, Sprint Metal - Societe de Production Internationale de TrefilesInventors: Jean-Michel Hauser, Joel Marandel
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Patent number: 6042782Abstract: A welding material for use in a consumable or non-consumable electrode welding of stainless steels, capable of forming a weld metal with excellent corrosion resistance and mechanical properties, being drawn into a welding wire easily. The welding material is a composite welding wire composed of a steel shell and a filler material enveloped by the said steel shell and not containing slag forming agent. The welding material, as a whole, has the chemical composition as follows (by weight %): Not more than 0.3% C, not more than 1.0% Si, not more than 1.5% Mn, not more than 0.04% P, not more than 0.01% S, not more than 0.5% Al, 8.0 to 10.0% Mo, 22.0 to 26.0% Cr, 2.0 to 5.0% Mo, 0.12 to 0.24% N, not more than 3.0% Co, not more than 5.0% W, not more than 2.0% Cu, not more than 1.5% V and the equivalent PREW of the welding material is not smaller than 42.0 and ferrite volume index Ph of the welding material is 0.12 to 0.Type: GrantFiled: May 13, 1998Date of Patent: March 28, 2000Assignees: Sumikin Welding Industries Ltd., Sumitomo Metal Industries, Ltd.Inventors: Yoshiaki Murata, Yuichi Komizo, Hiroyuki Hirata
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Patent number: 6022629Abstract: There is described a copper-based sliding layer comprising a matrix of copper or a copper alloy with softer metallic inclusions of at least 10 wt-% which form particles having sectional areas separate from each other with respect to an observation plane parallel to the layer. To combine favorable strength values with good tribological properties, it is suggested that when adding up the sectional areas of the particles starting with the smallest sectional area and proceeding according to ascending area size the sectional area (F.sub.50) of that particle which completes the subtotal of the sectional areas up to its own area size to 50% of the final total corresponds to a maximum of ten times the sectional area (F.sub.5) of the particle completing the subtotal to 5% of the final total, but at least one fifth of the largest individual sectional area (F.sub.100).Type: GrantFiled: January 9, 1998Date of Patent: February 8, 2000Assignee: Miba Gleitlager AktiengesellschaftInventors: Thomas Rumpf, Walter Gartner
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Patent number: 5958602Abstract: A multi-walled steel pipe includes at least two pipe bodies of different diameters. The two pipe bodies are overlapped with one another. Either the inner surface of the outer pipe body or the outer surface of the inner pipe body is a rough surface having a roughness of 10 to 30 .mu.m. The rough surface is made by brasting, etching, or brushing or by the use of rolls. At least one of the overlapping surfaces is plated with copper to provide a brazing layer by which the overlapping surfaces are brazed together. The pipe bodies are double-walled stainless pipes, seamless stainless pipes, or electroseamed pipes.Type: GrantFiled: June 15, 1992Date of Patent: September 28, 1999Assignee: Usui Ko Kusai Sangyo Kaisha LimitedInventor: Masayoshi Usui
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Patent number: 5904966Abstract: A laminated structure is obtained by hot isostatic pressing. The structure comprises a first metallic outer layer (produced by powder metallurgy) on one side, a second metallic outer layer on the other side which can form a brittle intermetallic phase and/or a brittle ordered phase with the first side, and a ductile metallic intermediate layer, the layers possessing mutually different coefficients of thermal expansion, whereby the intermediate layer acts as a diffusion barrier against the formation of the aforementioned brittle intermetallic phases or ordered phases. The invention also concerns a manufacturing method for the structure and an application of same as a cathode in a plasma sputtering unit.Type: GrantFiled: March 22, 1996Date of Patent: May 18, 1999Assignee: Innovative Sputtering Technology N.V. (I.S.T.)Inventor: Paul Lippens
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Patent number: 5888321Abstract: The steel wire for making steel cord used in rubber product reinforcement has a tensile strength, Y in N/mm.sup.2, such that Y.gtoreq.-1960d+3920, wherein d is the wire diameter in mm, and also a flat Vickers hardness distribution in a cross-section perpendicular to a length direction thereof from the surface to the interior, but excluding a central portion having a central portion diameter corresponding to 1/4 of the wire diameter. The steel wire is made by a method including wet drawing a carbon steel wire rod material containing 0.80 to 0.89% by weight carbon to a predetermined intermediate diameter and subsequently heat-treating and plating to form a final raw material and then wet drawing the final raw material to form the steel wire. The wet drawing steps are performed with drawing dies, each of which is provided with a drawing hole having a drawing hole diameter d.sub.1 and the drawing die has an approach angle 2.alpha. equal to from 8.degree. to 10.degree. and a bearing length of 0.3 d.sub.1.Type: GrantFiled: May 15, 1996Date of Patent: March 30, 1999Assignee: Tokyo Rope Manufacturing Co., Ltd.Inventors: Hiroshi Kazama, Kazuhiro Ishimoto
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Patent number: 5766778Abstract: A material for sliding surface bearings comprising a layer of a wrought copper-zinc alloy of thickness of about 0.1 to 1.5 mm inseparably joined to a backing layer of steel or stainless steel. A co-rolled joining strip of copper may be between the two layers.Type: GrantFiled: October 25, 1996Date of Patent: June 16, 1998Assignee: Kolbenschmidt AktiengesellschaftInventors: Klaus Deicke, Werner Schubert, Manfred Muller
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Patent number: 5665480Abstract: A copper-lead alloy bearing having a high corrosion resistance, especially a high corrosion resistance to sulfur, comprising a back metal and a copper-lead-based bearing alloy bonded thereto. The copper-lead-based bearing alloy consists of more than 10 but not more than 20% Ni, 0.5 to 8% Sn, 8 to 30% Pb, not less an 0.005 but not more than 0.2% P, and the balance of Cu and incidental impurities.Type: GrantFiled: March 12, 1996Date of Patent: September 9, 1997Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Tsukimitsu Higuchi
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Patent number: 5648162Abstract: A magneto-optical recording medium including a base; a readout layer formed on the base; a recording layer formed on the readout layer; and an auxiliary recording layer formed on the recording layer, each of the readout layer, recording layer and auxiliary recording layer being made of an alloy of rare-earth metal and transition metal showing ferrimagnetism.Type: GrantFiled: December 30, 1993Date of Patent: July 15, 1997Assignee: Sharp Kabushiki KaishaInventors: Junji Hirokane, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta
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Patent number: 5545489Abstract: A multi-layer sliding bearing having an excellent anti-fretting property, comprises a back steel layer, and a bearing alloy layer formed on the back steel layer. A film of phosphate having a thickness of 0.1-15 .mu.m is formed on a back surface of the back steel layer, thereby enhancing the anti-fretting property of the bearing. The provision of the phosphate film well compatible with a mating material overcomes damage to the bearing due to fretting in a high-speed range. Therefore, the bearing can fully exhibit a bearing performance even under severe conditions of use in a high-speed, high-temperature and high-load range as typically experienced in a high-performance engine.Type: GrantFiled: October 20, 1994Date of Patent: August 13, 1996Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Tohru Kato, Mitsuru Sugita
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Patent number: 5543236Abstract: A bearing material is produced by forming a Cu-Pb-system or Pb-bronze-system bearing alloy layer on a steel plate optionally plated with Cu, and forming a Pb alloy overlay containing Zn on the bearing alloy layer so as to enhance corrosion resistance and conformability of the bearing alloy layer. A Cu-Zn alloy layer of 0.5 to 10 .mu.m is present between the Cu matrix of the bearing alloy layer and the overlay. The Cu-Zn alloy layer prevents Sn and In in the overlay from diffusing into the Cu matrix of the bearing alloy layer. The multi-layered slide bearing material can be manufactured by forming the bearing alloy lining layer on the steel plate optionally plated with Cu so as to obtain a bimetal plate, rolling the bimetal plate and a lead alloy plate for the overlay containing Zn to bond the plates in accumulative reduction of 8 to 48%, and thereafter subjecting the plates to heat treatment at 170.degree. to 250.degree. C.Type: GrantFiled: November 29, 1994Date of Patent: August 6, 1996Assignee: Daido Metal Company, Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Koji Kitagawa
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Patent number: 5503925Abstract: Coated cemented carbides used for cutting tool and having improved resistance to chipping without sacrificing resistance to wear.They comprise a substrate comprising WC, at least one iron-family metal forming a binder phase and a hard phase in which a hard phase comprising at least one element selected from the group consisting of carbides, nitrides and carbonitrides of metal containing Zr and/or Hf as a main component coexists with a hard phase comprising at least one element selected from the group consisting of carbides, nitrides and carbonitrides of metal containing Ti as a main component, and at least one coating layer formed on said substrate, said coating layer comprising at least one element selected from the group consisting of a carbide, nitride, oxide and boride of a metal that belongs to the IVa, Va and VIs groups and aluminum oxide.Type: GrantFiled: November 14, 1994Date of Patent: April 2, 1996Assignee: Sumitomo Electric Industries, Ltd.Inventors: Minoru Nakano, Katsuya Uchino
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Patent number: 5455121Abstract: A steel material for colored springs is formed with a metallic deposit on the surface. The metallic deposit contains copper, zinc, and chromium. In an annealing process, copper and zinc diffuse in the deposit to exhibit a gold color tone while chromium is oxidized to exhibit a dark gray color tone. The combination of these color tones exhibits a beautiful black color tone which is distinguishable from a normal spring. The deposit improves the formability in the spring shaping process.Type: GrantFiled: March 11, 1994Date of Patent: October 3, 1995Assignee: Shinko Kosen Kogyo Kabushiki KaishaInventors: Masao Yamada, Keiji Hattori, Hirofumi Ueki, Takashi Kubo
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Patent number: 5445896Abstract: A sliding bearing material of a three-layer structure includes a back steel layer, a bearing alloy layer, and an overlay formed by sputtering. The overlay has an excellent anti-seizure property, and the overlay contains, by weight, 10-80% Sn, 0.1-5% Cu, 0.05-3% Sb, and the balance Al. Optionally, the overlay may further contain not more than 10% of one or both of Pb and Bi. Also, optionally, the overlay may further contain not more than 5% Si.Type: GrantFiled: September 19, 1994Date of Patent: August 29, 1995Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Hideyuki Kidokoro
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Patent number: 5422192Abstract: A steel product (or copper-plated steel product) with heat-resistant, corrosion-resistant plating layers which are composed of a 0.2-10 .mu.m thick nickel plating layer formed on said steel product, a Zn-Ni alloy plating layer formed on said nickel plating layer, and a chromate film formed on said Zn-Ni alloy plating layer.Type: GrantFiled: September 7, 1994Date of Patent: June 6, 1995Assignee: Usui Kokusai Sangyo Kaisha Ltd.Inventors: Teruhisa Takahashi, Seiya Takahata
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Patent number: 5418074Abstract: A cold strip for manufacturing deep-drawn, case-hardened precision components, particularly rolling bearing and engine components, in which a core material (2) is roll clad at least on one side with a cladding material (3), characterized in that the core material (2) is a low-carbon cold or hot steel strip and the cladding material (3) is a cold or hot strip with increased carbon content, the core (2) and the cladding material (3) having different physical and chemical properties which complement each other, particularly with regard to deep-drawability, hardenability, constant reverse-bend fatigue strength and wear resistance.Type: GrantFiled: October 22, 1992Date of Patent: May 23, 1995Assignee: Ina Walzlager Schaeffler KGInventor: Karl-Ludwig Grell
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Patent number: 5413875Abstract: A copper alloy sliding bearing of a three-layer structure comprises a steel back metal layer of a high strength, a copper alloy layer, and an overlay. The steel back metal layer contains 0.15-0.26% by weight of carbon, and the steel back metal layer has a 0.2% yield strength of not less than 440 N/mm.sup.2. With this structure, even under severe conditions of use in an internal combustion engine of a high-speed design, in which an increased inertia force is applied to the housing, the followability of the bearing relative to the deformation of the housing is enhanced, and the bearing performance such as an anti-fretting property and an anti-seizure property is excellent.Type: GrantFiled: October 14, 1993Date of Patent: May 9, 1995Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Tsukimitsu Higuchi
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Patent number: 5397658Abstract: A pre-form of an anode current collector for an alkaline electrochemical cell is plated at its edges with tin, zinc, or a combination of tin and zinc, to protect the anode current collector from chemically reacting with the anode paste, and forming hydrogen gas in the cell. The anode current collector, thus protected, is placed in an alkaline electrochemical cell with an anode paste preferably containing no mercury, without incurring deleterious swelling of the resulting cell.Type: GrantFiled: August 16, 1993Date of Patent: March 14, 1995Assignee: Rayovac CorporationInventor: Thomas L. Dunham
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Patent number: 5344719Abstract: The invention relates to a welding band for welding synthetic resin film including a steel band, which is coated in its end parts with a thin copper layer. To attain the aim of improving the working life of such a welding band, the thin copper layer is covered with an even thinner metallic layer, preferably of nickel.Type: GrantFiled: February 17, 1993Date of Patent: September 6, 1994Assignee: Windmoeller & HoelscherInventor: Horst Bauer
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Patent number: 5342700Abstract: A metal wire having the following features:(a) it is formed, at least in part, by a steel having a carbon content of at least 0.1% and at most 0.6% and a boron content of less than 8 ppm;(b) the steel of the wire has a strain-hardened lower bainite type structure (7);(c) the diameter of the wire varies from 0.10 to 0.40 mm;(d) the resistance to rupture of the wire is at least equal to 2800 MPa;(e) the elongation upon rupture of the wire is at least equal to 0.4%.The method according to the invention for producing this wire consists in strain hardening a machine wire having 28% to 90% proeutectoid ferrite and 72% to 10% perlite, thereupon carrying out a heat treatment to obtain a structure of lower bainite type, then effecting a strain hardening on the wire, the temperature of the wire upon the strain hardening being less than 0.3 T.sub.F, T.sub.F being the melting point of the steel expressed in Kelvin.Type: GrantFiled: June 17, 1992Date of Patent: August 30, 1994Assignee: Compagnie Generale des Establissements Michelin-Michelin & CieInventors: Jean-Claude Arnaud, Bernard P. Prudence
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Patent number: 5334460Abstract: A Cu-Pb system composite bearing has three layers including a backing metal, a bearing alloy layer formed on the backing metal, and an overlay formed on the bearing alloy layer. The Cu-Pb bearing alloy contains 2 to 10% Ni and 0.05 to 1.0% B. An example of the composition of the Cu-Pb system bearing alloy consists of 0.5 to 8% Sn, 15 to 30% Pb, 0.2% or less P, 2 to 10% Ni, 0.05 to 1.0% B and the balance of Cu and unavoidable impurities. The Cu-Pb bearing alloy must have a hardness over HV80. Ni and B contained in the bearing alloy decrease the affinity of the Cu-Pb bearing alloy for tin in the overlay of a tin-containing lead alloy. The corrosion resistance of the bearing is improved by plating the both surfaces of the composite bearing with Sn, Pb or an alloy thereof.Type: GrantFiled: December 2, 1992Date of Patent: August 2, 1994Assignee: Daido Metal CompanyInventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Kenji Sakai
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Patent number: 5256494Abstract: The sliding member of the invention comprises a steel backing and a sintered Cu-alloy layer mounted integrally on one surface of the backing metal, wherein the sintered Cu-alloy comprises 1 to 15% Sn, 1 to 20% Ni-B compound, 1% or less phosphorus, and the balance of Cu and impurities. Cu-alloy may further contain 1 to 30% Pb and/or 0.5 to 8% graphite. Pb and graphite provide the sliding alloy layer with good lubrication property. Preferably the Ni-B compound is used, which is composed of 7 to 15% B and the balance of Ni and impurities.Type: GrantFiled: November 26, 1991Date of Patent: October 26, 1993Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Masaaki Sakamoto, Koichi Yamamoto, Tsukimitsu Higuchi
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Patent number: 5240520Abstract: A high-strength, ultra-fine wire having an excellent workability in stranding, comprising a steel comprised of, in terms of % by weight, 0.85 to 1.10% of C, 0.10 to 0.70% of Si, 0.20 to 0.60% of Mn, 0.10 to 0.60% of Cr, 0.005% or less of Al and optionally at least one member selected from 0.10 to 2.00% of Ni and 0.10 to 3.00% of Co with the balance Fe and unavoidable impurities and, provided thereon, a brass plating, the steel wire having a diameter of 0.1 to 0.4 mm and a tensile strength of 400 kgf/mm.sup.2 or more, the surface of the brass plating being provided with indentations having a depth of 2 .mu.m or less at intervals of 50 .mu.Type: GrantFiled: July 16, 1992Date of Patent: August 31, 1993Assignee: Nippon Steel CorporationInventors: Toshimi Tarui, Syoji Sasaki, Hitoshi Tashiro, Hiroshi Sato
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Patent number: 5219668Abstract: The invention relates to a process for treating an elongated, coated substrate, whereby the treatment comprises the application by cathode sputtering of a material containing at least one component and whereby the composition of this material has been chosen in accordance with the difference between the composition of the coating or the surface of the coating as measured and the desired composition of the coating or the surface of the coating.Type: GrantFiled: September 1, 1989Date of Patent: June 15, 1993Assignee: N.V. Bekaert S.A.Inventors: Hugo Lievens, Wilfried Coppens
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Patent number: 5213904Abstract: A five-layered bonded metal product comprising a top layer of aluminum alloy, a second layer of aluminum, a third layer of titanium, a fourth layer of 70-30 copper-nickel, and a fifth layer of steel. The method of producing said multi-layered product comprises the step of explosive bonding. The invention also includes a transition joint between aluminum and steel comprising interlayers of titanium and copper-nickel.Type: GrantFiled: November 5, 1991Date of Patent: May 25, 1993Assignee: Explosive Fabricators, Inc.Inventor: John G. Banker
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Patent number: 5192618Abstract: The present invention relates to the improvement of corrosion wear resistance of iron-manganese (FeMn) film by ion implantation and subsequent annealing without substantially affecting the magnetic properties of the magnetic material. A highly corrosive and wear resistant FeMn film is disclosed comprised of a layer of FeMn and at least one protective layer selected from the group consisting of nitrides, carbides and oxides, with said protective layer being formed at the surface of the FeMn layer.Type: GrantFiled: April 26, 1991Date of Patent: March 9, 1993Assignee: International Business Machines CorporationInventors: Gerald S. Frankel, Igor Y. Khandros, Peter B. Madakson
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Patent number: 5190831Abstract: A three-layered explosion bonded metal product comprising a layer of steel, a layer of titanium and an interlayer of 70-30 copper-nickel between the layer of steel and the layer of titanium. A method using explosive force is provided for bonding the three layers.Type: GrantFiled: November 5, 1991Date of Patent: March 2, 1993Assignee: Explosive Fabricators, Inc.Inventor: John G. Banker
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Patent number: 5176957Abstract: Bead wire comprising a core head wire plated with a Cu/Sn deposit wherein the deposit has a Sn content of 9 to 13% by weight and a Cu content of 91 to 87% by weight and the deposit is in an amount of 0.65 to 0.85 g per kilogram of the core bead wire. The bead wires of the present invention provides excellent adhesion between the plated bead wire and the rubber layer.Type: GrantFiled: November 30, 1990Date of Patent: January 5, 1993Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Hiroshi Hoshino, Shinichi Miyazaki
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Patent number: 5118906Abstract: An electric wire conductor for use in automobiles made by twisting a plurality of strands together. Each of the strands has a surface layer made of copper or a copper alloy and a core made of steel containing carbon and other elements such as Si, Mn, Ni and Cr. Also, the core may be made of an Fe-based alloy containing Ni or Cr. This structure allows a substantial reduction in the weight of conductor.Type: GrantFiled: December 12, 1990Date of Patent: June 2, 1992Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd.Inventors: Kazunao Kudoh, Fukuma Sakamoto, Kazunori Tsuji
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Patent number: 5101682Abstract: A reinforced tubing has an inner continuous hollow metallic tube. To strengthen the tube, a metallic helical structural member is bonded in tension by nickel or cobalt electroplating to the outside wall of the tube. Thus, a surrounding layer of electroplated material (i.e. nickel or cobalt) covers the tube and the structural member to bond the structural member to the tube. The individual coils of the helical structural member are spaced apart, so that the edges of successive coils do not touch or overlap. Importantly, the angular pitch between successive coils is in the range 20.degree.-60.degree., the pitch being variable throughout the length of the tubing.For applications wherein the tubing is to be used as a rigid platform, a longitudinal stiffening member may be bonded to the inside of the tube.Type: GrantFiled: July 6, 1990Date of Patent: April 7, 1992Assignee: InterVentional Technologies, Inc.Inventors: Herbert R. Radisch, Jr., Andrew F. Farr
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Patent number: 5100867Abstract: In a known process, oxide powders derived from the four-component systems yttrium-barium-copper-oxygen or lanthanum-strontium-copper-oxygen are mixed, pressed, sintered, ground and then heat-treated to produce a superconducting material which can be shaped to the desired cross-section. According to the invention, the powder is compacted by isostatic pressing and the blank so obtained is extruded at a temperature.gtoreq.500.degree. C. to form a metallic sheath with a deformation ratio of at least 50%. The extruded blank is then converted to wire or strip. The current-carrying capacity of the high-temperature superconductor is improved by the extrusion and the resulting alignment of the crystallites. The process can be implemented using known high-temperatures superconducting material.Type: GrantFiled: June 11, 1990Date of Patent: March 31, 1992Assignee: Siemens AktiengesellschaftInventors: Karl-Heinz Gunzelmann, Reiner Muller, Werner Herkert, Joachim Grosse, Gunter Tiefel
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Patent number: 4999257Abstract: The Cu system bearing material is disclosed, which comprises a backing material consisting of a steel strip, a sintered alloy layer formed on the backing material by sintering metal or alloy particles, and a bearing layer formed on the sintered alloy layer. The sintered alloy layer consists of a sintered alloy containing 14% to 20% by weight of Pb and 4% to 10% by weight of Sn with the remainder being Cu. This bearing material exhibits satisfactory fatigue strength and a wear-resistant property under high-load high-frictional-speed conditions.Type: GrantFiled: February 1, 1989Date of Patent: March 12, 1991Assignee: NDC Company Ltd.Inventor: Kiyoshi Imai
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Patent number: 4988552Abstract: A wire electrode for a traveling wire EDM apparatus that comprises a copper clad steel core that is clad with a homogenous, outer brass layer using a classical bonding process. The copper clad steel core has a conductivity in the range of 50%-70% IACS (International Annealed Copper Standard) and the brass layer comprises 35%-50% by volume of the electrode. The brass layer comprises 65% copper and 35% zinc in an optimum construction. For a wire electrode having an overall diameter of 0.010 inches, the outer homogenous, brass layer is substantially 25 microns thick when the brass comprises 35% by volume of the wire and the copper clad steel core has a conductivity of 60% IACS and is contructed from AISI 10006 steel wire.Type: GrantFiled: June 17, 1988Date of Patent: January 29, 1991Assignee: Composite Concepts CompanyInventor: Dandridge S. Tomalin
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Patent number: 4978586Abstract: The invention relates to a steel substrate with metal coatings for the reinforcement of vulcanizable elastomers, as well as a method for the continuous manufacture of a thus coated substrate and elastomer objects reinforced with said substrate.The substrate is provided with a first coating and a second coating at least covering part of the first one and a bonding layer being present between the two said coatings. The second coating comprises e.g. cobalt that can be applied by plasma sputtering. The coating combination can be easily adapted to the specific elastomer compositions and the reinforcement requirements aimed at.Type: GrantFiled: October 14, 1988Date of Patent: December 18, 1990Assignee: N. V. Bekaert S.A.Inventors: Daniel Chambaere, Wilfred Coppens, Hugo Lievens, Roger De Gryse, Robert Hoogewijs, Joost Vennik, Lucien Fiermans
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Patent number: 4963440Abstract: Provided herein is an Al-Cr alloy vapor deposited product having high corrosion resistance which can be used under a corrosive environment for a long period of time on account of the outstanding corrosion resistance and heat resistance of the Al-Cr alloy vapor deposited layer.Type: GrantFiled: January 19, 1989Date of Patent: October 16, 1990Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Kazutoshi Shimogori, Hiroshi Satoh, Masao Toyama, Hidetoshi Nishimoto, Koki Ikeda, Junji Kawafuku
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Patent number: 4952249Abstract: After a last patenting operation at a first diameter d.sub.1 a steel wire is (a) drawn by means of a lubricant to an intermediate work hardened state at an intermediate diameter d.sub.2, (b) coated at said intermediate diameter d.sub.2 and work hardened state with a brass alloy, (c) drawn at said intermediate diameter d.sub.2 and work hardened state to a final diameter d.sub.f. This process may increase the ultimate tensile strength of the steel wire and may reduce the frequency of fractures during the drawing operation. The process also may provide steel wires with an improved adhesion to rubber.Type: GrantFiled: May 9, 1988Date of Patent: August 28, 1990Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4946747Abstract: Machine elements formed which overcome the problems associated with rolling bearings or rolling drive units, which, apart from load under rolling are simultaneously exposed to frictional load, which leads in particular zones to frictional wear. In order to keep this to a minimum the invention teaches to apply on the effected surfaces of such structural parts a coating of a friction bearing material, which, however, according to the findings of the invention must be applied with the PVD method and must have a thickness of the order of magnitude of the surface roughness of the base body; known thicker friction bearing coatings are not suitable. The invention is especially for forming gear wheels, rolling bearings, shafts, compressor screws, and rolling pistons.Type: GrantFiled: April 27, 1988Date of Patent: August 7, 1990Assignee: Balzers AGInventors: Erich Bergmann, Manfred Berger
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Patent number: 4946748Abstract: Disclosed is a coated steel sheet valuable for the production of a fuel vessel, in which a first covering layer comprising a Pb-Sn alloy as the main component is formed on a substrate comprising a steel sheet and an undercoat covering layer composed of at least one member selected from Ni, Co and Cu, which is formed on the surface of the steel sheet according to need, a second covering layer containing a compound containing Pb and P is formed on the first covering layer, a third covering layer containing at least one member selected from Sn, Ni and Co is formed on the second covering layer, and according to need, the surface portion of the third covering layer is modified with a treating liquid containing a phosphoric acid ion or a chromic acid ion. This coated steel sheet shows a highly improved corrosion resistance, forming processability, solderability, and weldability.Type: GrantFiled: October 19, 1989Date of Patent: August 7, 1990Assignee: Nippon Steel CorporationInventors: Seijun Higuchi, Kenichi Asakawa, Toshinori Mizuguchi, Minoru Fujinaga
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Patent number: 4939041Abstract: Coating of crystalline metals (Ag, Au, Cu, Al) are formed on amorphous melic alloys (glassy metals) by cathode magnetron sputtering. The process can be used to produce new products such as copper coated amorphous metallic alloy wires for torpedo controls, shielding materials for electromagnetic waves, and anticorrosion coatings for Fe-metalloid magnetostrictive elements.Type: GrantFiled: July 11, 1989Date of Patent: July 3, 1990Assignee: The United States of America as represented by the Secretary of the NavyInventors: Lawrence T. Kabacoff, Kristl B. Hathaway
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Patent number: 4929512Abstract: A composite material made of metal and rubber for use in automotive tires, hoses, conveyor belts and the like. Its object is to increase its durability by improving the adhesion properties between the metal and the rubber. To accomplish this object, a metal provided with an improved plating layer is used in combination with a rubber having such a composition as to be suitable for use with the metal. More specifically, the composite material of metal and rubber contains as basic ingredients a metal plated with a copper-zinc-nickel ternary alloy and natural rubber or synthetic isoplene rubber containing sulfer and adhesion promotors such as cobalt salt of organic acid or silica, resorcin and hexamethylenetetramine. The rubber is vulcanized to be bonded to the metal.Type: GrantFiled: April 14, 1989Date of Patent: May 29, 1990Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Rubber Industries, Ltd.Inventors: Yoshifumi Nishimura, Susumu Yamamoto, Hidekazu Nakata, Kiyoshige Muraoka, Mamoru Uchida, Takafumi Taguchi
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Patent number: 4883722Abstract: A brass alloy coating is disclosed which is of use in the manufacture of steel reinforced rubber articles, particularly tires. The alloy contains small amounts of phosphorus, particularly phosphates, and the adhesion between the rubber and brass is thereby improved, especially under high humidity and/or high temperature conditions.Type: GrantFiled: June 11, 1987Date of Patent: November 28, 1989Assignee: N.V. Bekaert S.A.Inventors: Wilfried Coppens, Daniel Chambaere, Hugo Lievens
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Patent number: 4861680Abstract: Bronze-grey films for window glazing structures are disclosed. The subject bronze-grey films are characterized by having a layer of reactive-sputtered titanium suboxide of controlled composition between the bronze-grey metal layer and the plastic sheet which makes up the substrate of the film. The process by which these films can be made is also disclosed. These films offer superior resistance to failure by delamination.Type: GrantFiled: February 11, 1988Date of Patent: August 29, 1989Assignee: Southwall TechnologiesInventors: Stephen F. Meyer, Claude A. Sans
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Patent number: 4818634Abstract: A composite metal spring material, and formed electrically conductive contact spring members made from the material, comprise metallurgically bonded layers of copper and stainless steel of selected compositions which are subjected to a novel sequence of heat-treating steps for providing the spring materials and members with spring characteristics of improved strength and stability.Type: GrantFiled: December 24, 1986Date of Patent: April 4, 1989Assignee: Texas Instruments IncorporatedInventor: Thomas Bliss
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Patent number: 4818628Abstract: A process for making a composite bearing material comprising a steel backed, prealloyed, lead-bronze sintered powder metal matrix whereby the first sinter step includes induction heating the prealloyed powder and steel backing to above 650.degree. C. and thereafter sintering the same at temperatures of about 850.degree. C. in a second sintering furnace. A composite bearing material made by the same process and comprising a lead particle size averaging less than about 8 microns and having no lead islands larger than about 44 microns.Type: GrantFiled: August 31, 1987Date of Patent: April 4, 1989Assignee: Federal-Mogul CorporationInventors: Robert G. Alexander, George C. Pratt
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Patent number: 4818629Abstract: A joint construction is provided for lined equipment in which mutually weldable backing plates or sheets are lined with layer or facing sheets weldable to each other but not to the backing. An intermediate metal is optionally included between the backing and layer. A channel is provided between the layer sheets overlying the joint between the backings. A bridging strip weldable to the layer sheets is disposed in the channel and welded to the respective edges of the layer sheets. In some embodiments spaced strips of the layer material are disposed under the respective edges and the bridging strip and welds are made to join the spaced strips, the bridging strip and the edges of the layer sheets.Type: GrantFiled: August 26, 1985Date of Patent: April 4, 1989Assignee: Fansteel Inc.Inventors: Einar R. Jenstrom, Mortimer Schussler