Next To Fe-base Component Patents (Class 428/682)
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Publication number: 20110123828Abstract: A method of one-piece casting of a tool with a working component of steel and a body of grey iron, and an interconnection zone therebetween is carried out in a single mould which is kept closed and unchanged during the casting. The steel is cast first from beneath and upwards, whereafter a pause is made. The casting of the grey iron is only carried out when the temperature of the steel in the intended interconnection zone has fallen to a temperature corresponding to the liquidus temperature of the steel minus approx. 30° to 150° C.Type: ApplicationFiled: March 5, 2009Publication date: May 26, 2011Inventors: Christer Svensson, Tomas Nilsson
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Patent number: 7935431Abstract: The invention concerns a cast wear part with its structure reinforced by at least a type metal carbide, and/or metal nitride, and/or boride, and/or metal oxides, and/or intermetallic compounds, referred to below as constituents. The invention is characterized in that the raw materials used as reagents for said constituents have been introduced in a mould (1) before casting in the form of compacted powder inserts or preforms (3) or the form of slurries (4), and the reaction of said powders has been activated in situ by casting a metal, forming a porous conglomerate in situ, and said metal has infiltrated the porous conglomerate, thus forming a reinforced structure leading to inclusion of said constituents in the structure of the metal used for casting, thereby creating a reinforcing structure on the wear part (2).Type: GrantFiled: June 4, 2004Date of Patent: May 3, 2011Assignee: Magotteaux International SAInventors: Claude Poncin, Francesco Vescera
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Publication number: 20110052933Abstract: A composite cast tool is cast in one continuous piece, partly of steel and partly of grey iron, so that an interconnection zone is formed between the steel and the grey iron. The steel portion forms the working component of the tool, for example a cutting edge, and the grey iron portion forms the body component of the tool. The steel portion and the grey iron portion have projections or walls extending towards one another. The interconnection zone is located in the region of union between these walls and is planar.Type: ApplicationFiled: March 5, 2009Publication date: March 3, 2011Applicant: CAMITO ABInventors: Christer Svensson, Tomas Nilsson
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Publication number: 20110033730Abstract: The present document describes a composite material adapted to resist degradation by an erosive agent. The composite material comprises a steel base and crystals embedded in the steel base. At least 50% of the crystals have an elongated portion. Optionally, the composite material comprises an external surface for exposure to the erosive agent. At least 50% of the elongated portions are transverse to the external surface. A filler material is also described for forming the composite material on a ferrous surface by welding. The filler material comprises iron, carbon, boron, molybdenum and silicon. Methods are also described form forming the composite material.Type: ApplicationFiled: August 6, 2009Publication date: February 10, 2011Inventor: Serge Dallaire
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Patent number: 7879460Abstract: Disclosed is a welding wire for joining cast iron and stainless steel, having a composition of 0.03 wt % or less of C, 2.0˜3.0 wt % of Si, 12.0˜14.0 wt % of Mn, 7.0˜9.0 wt % of Cr, 45.0˜47.0 wt % of Ni, 0.5˜0.8 wt % of Nb, and 2.0˜3.0 wt % of Mo, with a balance of Fe. Using the welding wire, a weld zone which has no hot cracks and is sound and good can be obtained.Type: GrantFiled: November 25, 2008Date of Patent: February 1, 2011Assignee: Hyundai Motor CompanyInventor: Jae Gyu Jung
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Patent number: 7811674Abstract: A galvanized iron article is provided which is formed by hot-dipping the iron article in a galvanizing bath that contains 0.005 to 0.2 mass % of Cu and 0.001 to 0.1 mass % of Al, with the balance being Zn and unavoidable impurities, to provide a galvanized layer thereon.Type: GrantFiled: October 5, 2007Date of Patent: October 12, 2010Assignee: CK Metals Co., Ltd.Inventors: Kazuyoshi Oohashi, Yoshiharu Kosaka
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Publication number: 20100119872Abstract: A liner material for a backing steel cylinder, comprising an iron-based hard facing alloy comprising at least one rare earth element, and a high pressure cylinder assembly, comprising a backing steel cylinder, and a liner covering at least a portion of an inner surface of the backing steel cylinder, the liner comprising an iron-based hard facing alloy comprising at least a rare earth element are disclosed. The thickness of the liner material in the cylinder ranges from 0.030 inches (762 microns) to 0.375 inches (9525 microns). A method of lining a high pressure cylinder assembly, comprising applying an iron-based hard facing alloy comprising at least one rare earth element onto the backing steel cylinder of the high pressure cylinder assembly is also disclosed. The rare earth element includes cerium in an amount less than 2 weight percent based on the weight of the iron-based hard facing alloy.Type: ApplicationFiled: November 13, 2009Publication date: May 13, 2010Inventors: Calvin D. Lundeen, Tony A. Grant
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Patent number: 7678471Abstract: An article of manufacture and a method for providing an Fe—Cr ferritic steel article of manufacture having a surface layer modification for corrosion resistance. Fe—Cr ferritic steels can be modified to enhance their corrosion resistance to liquid coal ash and other chemical environments, which have chlorides or sulfates containing active species. The steel is modified to form an aluminide/silicide passivating layer to reduce such corrosion.Type: GrantFiled: March 14, 2006Date of Patent: March 16, 2010Assignee: UChicago Argonne LLCInventors: Jong-Hee Park, Krishnamurti Natesan, David L. Rink
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Publication number: 20100055495Abstract: The present invention relates to a brazing material comprising an alloy containing essentially of: 15 to 30 wt % chromium (Cr); 0.1 to 5.0 wt % manganese (Mn); 9 to 20 wt % nickel (Ni); 0 to 4.0 wt % molybdenum (Mo); 0 to 1.0 wt % nitrogen (N); 1.0 to 7.0 wt % silicone (Si); 0 to 0.2 wt % boron (B); 1.0 to 7.0 wt % phosphorus (P); optionally 0.0 to 2.5 wt % of each of one or more of elements selected from the group consisting of vanadium (V), titanium (Ti), tungsten (W), aluminum (Al), niobium (Nb), hafnium (Hf) and tantalum (Ta); the alloy being balanced with Fe, and small inevitable amounts of contaminating elements; and wherein Si and P are in amounts effective to lower melting temperature. The present invention relates further to a method of brazing, a product brazed with the brazing material.Type: ApplicationFiled: November 14, 2007Publication date: March 4, 2010Applicant: ALFA LAVAL CORPORATE ABInventor: Per Sjödin
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Publication number: 20100047619Abstract: Disclosed is a welding wire for joining cast iron and stainless steel, having a composition of 0.03 wt % or less of C, 2.0˜3.0 wt % of Si, 12.0˜14.0 wt % of Mn, 7.0˜9.0 wt % of Cr, wt % of Ni, 0.5˜0.8 wt % of Nb, and 2.0˜3.0 wt % of Mo, with a balance of Fe. Using the welding wire, a weld zone which has no hot cracks and is sound and good can be obtained.Type: ApplicationFiled: November 25, 2008Publication date: February 25, 2010Applicant: Hyundai Motor CompanyInventor: Jae Gyu Jung
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Publication number: 20100028716Abstract: Brazing alloy with a composition consisting essentially of FeaNiRestCrbMocCudSieBfPg, wherein 0 atomic %<=a<=50 atomic %; 5 atomic %<=b<=18 atomic %; 0.2 atomic %<c<=3 atomic %; 4 atomic %<=e<=15 atomic %; 4 atomic %<=f<=15 atomic %; 0 atomic %<=g<=6 atomic %; rest Ni, and wherein if 0 atomic %<a<=50 atomic %; then 0.5 atomic %<=d<3 atomic % and if a=0, then 0.5 atomic %<=d<=5 atomic %.Type: ApplicationFiled: August 1, 2007Publication date: February 4, 2010Inventors: Dieter Nuetzel, Thomas Hartmann
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Publication number: 20090130483Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.Type: ApplicationFiled: July 18, 2006Publication date: May 21, 2009Applicant: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Dieter Nuetzel
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Patent number: 7514154Abstract: A resin-coated steel plate obtained by providing, on at least one surface of the steel plate, (i-1) an alloy layer of iron and at least one metal selected from tin, zinc and nickel or (i-2) a tin-plated layer containing tin in an amount of not smaller than 0.5 g/m2, (ii) a silane coupling agent-treated layer, and (iii) a thermoplastic polyester resin layer in this order from the side of the steel plate. Despite not containing chromium, the resin-coated steel plate exhibits excellent work adhesion properties between the steel blank and the organic resin film even when the thickness is reduced due to a severe working and even at portions subjected to severe working such as flanging and necking. By press-forming the resin-coated steel plate, there are obtained cans featuring excellent corrosion resistance and being adapted to containing even highly corrosive contents.Type: GrantFiled: March 6, 2003Date of Patent: April 7, 2009Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Hiroshi Matsubayashi, Shozo Ichinose, Takashi Iwai, Takehito Ifuku
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Patent number: 7510739Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: March 31, 2009Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7479329Abstract: Hematin, a hydroxyferriprotoporphyrin, is derivatized with one or more non-proteinaceous amphipathic groups. The derivatized hematin can serve as a mimic of horseradish peroxidase in polymerizing aromatic monomers, such as aromatic compounds. These derivatized hematins can also be used as catalysts in polymerizing aromatic monomers, and can exhibit significantly greater catalytic activity than underivatized hematin in acidic solutions. In one embodiment, polymerization is in the presence of a template, along which aromatic monomers align. An assembled hematin includes alternating layers of hematin and a polyelectrolyte, which are deposited on an electrically charged substrate. Assembled hematin can also be used to polymerize aromatic monomers.Type: GrantFiled: September 26, 2007Date of Patent: January 20, 2009Assignees: University of Massachusetts/Lowell, The United States of America as represented by the Secretary of the ArmyInventors: Susan Tripathy, legal representative, Lynne A. Samuelson, Ferdinando F. Bruno, Sucharita Roy, Ramaswamy Nagarajan, Jayant Kumar, Bon-Cheol Ku, Soo-Hyoung Lee, Sukant Tripathy
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Patent number: 7429302Abstract: A structural hot-rolled or cold-rolled stainless steel sheet having improved intergranular corrosion resistance and toughness at the welding heat affected zone and further having low strength and high elongation. The composition of the steel sheet contains less than about 0.008 mass percent of C; about 1.0 mass percent or less of Si; about 1.5 mass percent or less of Mn; about 11 to about 15 mass percent of Cr; more than about 1.0 mass percent and about 2.5 mass percent or less of Ni; less than about 0.10 mass percent of Al; about 0.009 mass percent or less of N; about 0.04 mass percent or less of P; about 0.01 mass percent or less of S; and the balance being Fe and incidental impurities. These contents satisfy the expressions: (Cr)+1.2×(Ni)?15.0; (Ni)+0.5×(Mn)+30×(C)?3.0; (C)+(N)?0.015; and (Cr)?(Mn)?1.7×(Ni)?27×(C)?100×(N)?9.0.Type: GrantFiled: March 24, 2003Date of Patent: September 30, 2008Assignee: JFE Steel CorporationInventors: Junichiro Hirasawa, Takumi Ujiro, Osamu Furukimi
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Patent number: 7393597Abstract: A weld joint having a base material and a weld metal both of an austenitic steel, wherein the weld metal has a chemical composition, in mass %, that C: 0.04% or less, Si: 1.0% or less, Mn: 3% or less, P: 0.02% or less, S: 0.005% or less, Cr: 15 to 25%, Ni: 30% or more, Mo: 10% or less, Nb: 2.5 to 5%, Al: 3.0% or less, Ti: 0.5% or less, and the balance: Fe and inevitable impurities, the contents of Al and Ti satisfying the following: (Ti+Al)>Nb/8. The weld joint is a high strength austenitic steel weld joint which exhibits excellent toughness at a low temperature and excellent resistance to hydrogen embrittlement, which are required for a piping and a vessel for high pressure hydrogen, particularly also in a welded zone.Type: GrantFiled: December 9, 2005Date of Patent: July 1, 2008Assignee: Sumitomo Metal Industries, Ltd.Inventors: Kazuhiko Ogawa, Masaaki Igarashi, Hiroyuki Semba, Tomohiko Omura, Mitsuo Miyahara
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Patent number: 7358327Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: April 15, 2008Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7344751Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: April 21, 2005Date of Patent: March 18, 2008Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 7326472Abstract: A head body of a golf club head has a hollow portion defined by an outer wall. An opening portion is provided in a part of the head body. A small tungsten alloy piece having a shape fittable to the opening portion so as to cover the opening portion is fixedly attached to the opening portion by welding. The golf club head defines the opening portion in a part of the metal head body and has the small tungsten alloy piece fitted and joined to the opening portion by welding so that the golf club head can be reduced in weight because of provision of the hollow portion. Since the small tungsten alloy piece is joined to the opening portion by welding, difficult plastic forming is not required particularly, and the weight can be adjusted easily and accurately.Type: GrantFiled: November 16, 2004Date of Patent: February 5, 2008Assignee: Bridgestone Sports Co., Ltd.Inventors: Hideo Shimazaki, Yasunori Imamoto
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Patent number: 7314670Abstract: A welded component includes at least one high temperature segment of a high alloy Cr steel with high creep strength and a low temperature segment of a low alloy steel with high toughness and/or a high yield strength which are connected materially to one another via a weld joint. In one such component a gradual transition of chemical, physical and mechanical properties in the joining area is achieved in that between the weld joint and the high temperature segment there are at least two successive clad layers of at least two lower alloy weld metals with a total content of elements which increase the creep strength, such as for example Cr, Mo, W and V, which total content decreases toward the weld joint, and/or an increasing total content of elements which increase the toughness and/or yield strength, such as for example Ni and Mn, which total content increases toward the weld joint.Type: GrantFiled: May 12, 2005Date of Patent: January 1, 2008Assignee: ALSTOM Technology LtdInventors: Herbert Bartsch, Richard Brendon Scarlin
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Publication number: 20070217293Abstract: A decorative product having a base member composed of primarily an Fe—Cr alloy, and an austenite layer that is austenitized by adding nitrogen atoms near the surface of the base member.Type: ApplicationFiled: March 12, 2007Publication date: September 20, 2007Applicant: Seiko Epson CorporationInventor: Koki Takasawa
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Patent number: 7217905Abstract: A filler metal including not more than about 0.1% C, not more than about 1.0% Si; not more than about 0.8% Mn; from about 10.5% to about 13.0% Cr; from about 0.65% to about 4.0% Ni; from about 10(% C) to about 1.5% Ti; not more than about 0.5% each of N, S, P, Mo, Nb, Cu, V, or Co; and balance essentially Fe, wherein a weld test pad of the filler metal contains a microstructure comprising martensite. A method of attaching together two components using a modified filler metal which forms a weld containing an amount of martensite sufficient to increase the volume of the weld thereby at least partially offsetting shrinkage of the weld upon cooling, and articles produced thereby.Type: GrantFiled: October 29, 2003Date of Patent: May 15, 2007Assignee: Delphi Technologies, Inc.Inventors: Jeffrey B. Hardesty, David E. Nelson
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Patent number: 7172794Abstract: A method for obtaining a ferrous alloy part that supports a very high seizure load with very low dispersion includes steps of covering the part with an iron sulphide coating having an appropriate thickness and Fe/S ratio, where the coating is selected from among those with surfaces having a fractal dimension that is at least equal to 2.6.Type: GrantFiled: March 28, 2002Date of Patent: February 6, 2007Assignee: Centre Stephanois de Recherches Mecaniques Hydromecaniques et FrottementInventors: Stéphane Chomer, Jean-Paul Terrat
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Patent number: 7135240Abstract: A thermal spray composition and method of deposition for abradable seals for use in gas turbine engines, turbochargers and steam turbines. The thermal spray composition includes a solid lubricant and a ceramic preferably comprising 5 to 60 wt % total of the composition in a ratio of 1:7 to 20:1 of solid lubricant to ceramic, the balance a matrix-forming metal alloy selected from Ni, Co, Cu, Fe and Al and combinations and alloys thereof. The solid lubricant is at least one of hexagonal boron nitride, graphite, calcium fluoride, lithium fluoride, magnesium fluoride, barium fluoride, tungsten disulfide and molybdenum disulfide particles. The ceramic includes at least one of albite, illite, quartz and alumina-silica.Type: GrantFiled: December 16, 2004Date of Patent: November 14, 2006Assignee: Sulzer Metco (Canada) Inc.Inventors: Petr Fiala, Anthony Peter Chilkowich, Karel Hajmrle
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Patent number: 7022420Abstract: An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.Type: GrantFiled: February 9, 2004Date of Patent: April 4, 2006Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ferdinando Bruno, Lynne A. Samuelson, Ramaswamy Nagarajan, Jayant Kumar, Michael Sennett
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Patent number: 6966955Abstract: A weldable structural steel product having TiN and ZrN precipitates, which contains, in terms of percent by weight, 0.03 to 0.17% C, 0.01 to 0.5% Si, 0.4 to 2.0% Mn, 0.005 to 0.2% Ti, 0.0005 to 0.1% Al, 0.001 to 0.03% Zr, 0.008 to 0.030% N, 0.0003 to 0.01% B, 0.001 to 0.2% W, at most 0.03% P, at most 0.03% S, at most 0.01% O, and balance Fe and incidental impurities while satisfying conditions of 1.2?Ti/N?2.5, 0.3?Zr/N?2.0, 10?N/B?40, 2.5?Al/N?7, and 6.8?(Ti+Zr+2Al+4B)/N?17, and having a microstructure essentially consisting of a complex structure of ferrite and pearlite having a grain size of 20 ?m or less.Type: GrantFiled: November 21, 2001Date of Patent: November 22, 2005Assignee: PoscoInventors: Hae-Chang Choi, Hong-Chul Jeong
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Patent number: 6953627Abstract: A process for the production of thin walled parts of steel, wherein there are layers that are at least partly differently treatable relating to their strength and hardness qualities. This process can include creating a composite material from a plurality of different layers by connecting at least one core layer and at least one surface layer together. At least one layer of the core or surface layer is cast adjacent to another layer to form a composite material having an alloy gradient that is flat at each interface between any of the core layer or the surface layer. Next, the process can include deforming the composite material along a length of these layers. Finally the process can include heat treating the layers to transform the strength and hardness qualities of at least one of these layers.Type: GrantFiled: January 5, 2001Date of Patent: October 11, 2005Assignee: C.D. Walzholz-Brockhaus GmbHInventor: Hans-Toni Junius
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Patent number: 6931713Abstract: A high frequency, low loss, power, laminated magnetic material includes alternating magnetic plates of low hysteresis loss material and electrically insulating films. The multi-layer structure allows for independently and simultaneously controlling and reducing hysteresis loss and eddy current loss, and maintaining a high resistivity, while operating at high frequencies and at high flux density levels, resulting in extremely low net loss density for the composite material. Methods of making this material include co-firing of the magnetic plates and thin insulating films, making the magnetic plates (of low hysteresis material, such as a ferrite) and insulating films separately, and using heat and/or pressure and/or adhesive or making a stack of magnetic plates with spacers in between them and dipping in a molten or liquid insulating material.Type: GrantFiled: October 21, 2003Date of Patent: August 23, 2005Inventor: Waseem A. Roshen
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Patent number: 6905783Abstract: Steel sheet for porcelain enameling having excellent workability yet capable of providing an enamel layer having excellent adhesion with the steel sheet on direct-on enameling once and still free of black specks defects, a method for producing the same, as well as a porcelain enamel product and the method for producing the same are provided, in which low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet is used. A steel sheet for porcelain enameling is produced by applying Ni—Mo alloy plating to the low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet having specified components and composition ratio, and after performing heat treatment thereto to control the content of Ni, Mo, and Fe that are present on the surface of the steel sheet in a predetermined range, porcelain enamel is applied and fired.Type: GrantFiled: December 17, 2001Date of Patent: June 14, 2005Assignees: Ferro Enamels (Japan) Limited, Toyo Kohan Co., Ltd.Inventors: Fumiaki Sato, Toshihira Hamada, Shuzo Oda, Yoshihiro Jono, Takahiro Hayashida, Junichi Fujimoto, Masao Komai
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Patent number: 6899966Abstract: A composite surface having a thickness from 10 to 5,000 microns comprising a spinel of the formula MnxCr3?xO4 wherein x is from 0.5 to 2 and oxides of Mn, Si selected from the group consisting of MnO, MnSiO3, Mn2SiO4 and mixtures thereof which are not prone to coking and are suitable for hydrocarbyl reactions such as furnace tubes for cracking.Type: GrantFiled: June 24, 2003Date of Patent: May 31, 2005Assignee: Nova Chemicals (International) S.A.Inventors: Leslie Wilfred Benum, Michael C. Oballa, Sabino Steven Anthony Petrone
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Patent number: 6881500Abstract: A chain including chain pins 15, which connect an inner link plate and an outer link plate, are made of carburized or refined steel, and have the entire surface on which a large number of dimples 17 are provided which are formed through a primary shot peening performed at an arc height value of 0.35 to 0.8 mmA. Furthermore, dimples 21 with a size smaller than that of the dimples 17 are formed by applying a secondary shot peening performed at an arc height value smaller than that of a primary shot peening to the dimples 17 which have been subjected to the primary shot peening.Type: GrantFiled: November 1, 2002Date of Patent: April 19, 2005Assignee: Sugiyama Chain Co., Ltd.Inventor: Shinichiro Sugiyama
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Patent number: 6861161Abstract: A composite tool comprising a supporting part of a metallic material having a first composition and a working part of a metallic material having a second composition which is different from the first composition, a process for the manufacture thereof and a method of cutting an austentic alloy article with this composite tool. The supporting part of the composite tool is made of a tenacious iron-based material, and the working part is made of a precipitation harden iron-cobalt-tungsten alloy. The parts are joined by a metallic connection.Type: GrantFiled: May 30, 2001Date of Patent: March 1, 2005Assignee: Machner & Saurer GmbHInventors: Helmut Ponemayr, Karl Leban, Manfred Daxel Müller, Herbert Danninger
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Patent number: 6850057Abstract: A method of making a magnetorestrictive sensor involves the deposition of a magnetorestrictive strip over a substrate, the deposition of an insulating layer over the magnetorestrictive strip, the etching of barber pole windows through the insulating layer, the deposition of a conductive material over the insulating layer and into the barber windows, and the etching away of the conductive material between the barber pole windows so as to form barber poles. In this manner, the formation of the barber poles is controlled by the windows formed in the insulating layer.Type: GrantFiled: July 19, 2001Date of Patent: February 1, 2005Assignee: Honeywell International, Inc.Inventors: William F. Witcraft, Lonny Berg, Mae W. Ng, Tom Yeh
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Publication number: 20040265620Abstract: A chain including chain pins 15, which connect an inner link plate and an outer link plate, are made of carburized or refined steel, and have the entire surface on which a large number of dimples 17 are provided which are formed through a primary shot peening performed at an arc height value of 0.35 to 0.8 mmA Furthermore, dimples 21 with a size smaller than that of the dimples 17 are formed by applying a secondary shot peening performed at an arc height value smaller than that of a primary shot peening to the dimples 17 which have been subjected to the primary shot peening.Type: ApplicationFiled: May 4, 2004Publication date: December 30, 2004Inventor: Shinichiro Sugiyama
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Publication number: 20040214030Abstract: A method for the production and processing of alloyed casting material for a working part of an indefinite chill roll, a corresponding casting material and a composite indefinite chill roll incorporating the casting material. The method comprises providing a melt of a certain composition, casting the melt and subjecting the resultant body to a heat treatment. The composition of the melt is adjusted so as to afford a certain graphite and carbide distribution.Type: ApplicationFiled: May 25, 2004Publication date: October 28, 2004Applicant: Eisenwerk Sulzau-Werfen R. & E. Weinberger AGInventors: Michael Windhager, Bernhard Feistritzer, Karl-Heinrich Schroder, Karl-Heinz Ziehenberger
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Patent number: 6797406Abstract: The present invention relates to a color cathode ray tube provided with a pressed-type shadow mask. As material for constituting the shadow mask 6, a single plate body made of a composite gradient alloy plate consisting of three layers 6A, 6B, 6C or more in which an alloy element has the concentration gradient which is continuously changed from one surface to the other surface is used. The present invention can realize a pressed mask having a large radius of curvature by self-correcting the thermal deformation such as a doming or the like.Type: GrantFiled: June 5, 2002Date of Patent: September 28, 2004Assignee: Hitachi, Ltd.Inventors: Noriharu Matsudate, Nobuhiko Hosotani
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Patent number: 6783871Abstract: The instant invention is directed to a bonded product, such as a manifold, for gas or liquid chromatographs, and a method for making the same. The bonded product is made using the following steps: (i) contacting two or more steel sheets; (ii) heating the contacted sheets to a temperature substantially below the melting temperature of the sheets; (iii) applying pressure to the contacted sheets; and (iv) cooling the contacted sheets. No intermediate foreign material is used to bond the steel sheets, e.g., no welding material or TLP diffusion bonding plate is utilized. Nonetheless, a strong, leak free bond is generated at temperatures as low as 1700° F. (926.6° C.). The bond is molecular in nature, as evidenced by grains that grow from one sheet to another across the interface between the two sheets.Type: GrantFiled: April 5, 2002Date of Patent: August 31, 2004Assignee: Agilent Technologies, Inc.Inventor: Peisheng Sheng
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Patent number: 6773829Abstract: A cast slab has a negative segregation zone composed of a multilayer structure of negative segregation layers disposed between dendrite or crystalline layers. The dendrite or crystalline layers are a deflection structure caused by vibration during formation of the cast slab. The negative segregation layers have a distance between them of not more than 2 mm and the number of negative segregation layers is not less than 3. The cast slab has an equi-axed crystal ratio of not less than 50% inside the multilayer negative segregation zone.Type: GrantFiled: March 7, 2002Date of Patent: August 10, 2004Assignee: Nippon Steel CorporationInventors: Katsuhiro Sasai, Eiichi Takeuchi, Hiroshi Harada, Hajime Hasegawa, Takehiko Toh, Keisuke Fujisaki
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Publication number: 20040146753Abstract: A method for obtaining a ferrous alloy part that supports a very high seizure load with very low dispersion includes steps of covering the part with an iron sulphide coating having an appropriate thickness and Fe/S ratio, where the coating is selected from among those with surfaces having a fractal dimension that is at least equal to 2.6.Type: ApplicationFiled: March 15, 2004Publication date: July 29, 2004Inventors: Stephane Chomer, Jean-Paul Terrat
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Patent number: 6749952Abstract: The tin-plated steel sheet includes a base steel sheet; a tin plating layer coating approximately more than 97.0% of the base steel sheet; and a chemical conversion coating having approximately 0.5 to 100 mg/m2 phosphorus and approximately 0.1 to 250 mg/m2 silicon formed on the tin plating layer and an unplated region corresponding to approximately less than 3.0%. The tin-plated steel sheet does not contain chromium which is harmful to the environment but has superior overcoat adhesion property, discoloration resistance, and rust resistance.Type: GrantFiled: March 15, 2002Date of Patent: June 15, 2004Assignee: JFE Steel CorporationInventors: Tomofumi Shigekuni, Hisatada Nakakoji, Chiaki Kato
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Patent number: 6721201Abstract: A magnetoresistive film of a structure comprising a non-magnetic film being put between magnetic films. At least one of the magnetic films is a perpendicular magnetic anisotropy film including a rate earth metal, Fe and Co as main ingredients. And, composition of Co to Fe and Co is within a range from 8 atomic percent to 97 atomic percent both inclusive. A memory comprises a plurality of magnetoresistive films described in the above as memory elements; unit for recording information in the magnetoresistive films; and unit for reading the information recorded in the magnetoresistive films.Type: GrantFiled: August 29, 2002Date of Patent: April 13, 2004Assignee: Canon Kabushiki KaishaInventor: Takashi Ikeda
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Patent number: 6712912Abstract: A weld filler metal alloy composition and a method for welding stainless steel components into a final assembly includes the steps of: austenitizing the stainless steel components to be welded at a temperature of 1800° F.-2000° F.; applying, using conventional arc welding techniques a solid wire of the filler metal alloy comprising in % by weight: up to 0.02% carbon; up to 0.8% manganese; up to 0.02% phosphorus; up to 0.015% sulfur; up to 0.6% silicon; 4.5-5.5% nickel; 0.4-0.7% molybdenum; 10-12.5% chromium; up to 0.1% copper; balance essentially iron and incidental impurities; and tempering the welded assembly welded at a temperature of 930° F.-1300° F. A second tempering step conducted at a temperature of 1095° F.-1145° F. may follow. The welding method can be used to make compressor impellers (6). The compressor impeller components comprise 13Cr-4Ni stainless steel.Type: GrantFiled: October 23, 2002Date of Patent: March 30, 2004Assignee: Elliott Turbomachinery Co., Inc.Inventors: Douglas K. Richards, Phillip Dowson
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Patent number: 6710986Abstract: There is proposed a high-sensitive TMR element wherein the selection of electronic state contributing to tunnel conduction is optimized. In this invention, a junction plane between a ferromagnetic layer (210) having a bcc structure and a tunnel barrier layer (310) is constituted by (211) plane or (110) plane of the ferromagnetic layer (210). The tunnel barrier layer (310) is formed of a thin aluminum oxide film which is formed through two stages, i.e. a first stage wherein an aluminum film having a thickness of 1 nm or less is formed on the surface of a magnetic metal by taking advantage of the excellent wettability of aluminum to the surface of metallic film, the resultant aluminum film being subsequently naturally oxidized or oxidized by oxygen radical; and a second stage wherein an aluminum thin film is formed directly from an aluminum flux in an oxygen atmosphere or an atmosphere of oxygen radical.Type: GrantFiled: September 20, 2000Date of Patent: March 23, 2004Assignees: Hitachi, Ltd., Agency of Industrial Science and TechnologyInventors: Toshihiko Sato, Shinji Yuasa
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Patent number: 6689490Abstract: Display Element for Employment in a Magnetic Anti-theft Security System A semi-hard magnetic alloy for activation strips in magnetic anti-theft security systems is disclosed that contains 8 to 25 weight % Ni, 1.5 to 4.5 weight % Al, 0.5 to 3 weight % Ti and balance iron. The alloy is distinguished over known, employed alloys by excellent magnetic properties and a high resistance to corrosion. Further, the inventive alloy can be excellently cold-worked before the annealing.Type: GrantFiled: February 21, 2003Date of Patent: February 10, 2004Assignee: Vacuumschmelze GmbHInventors: Hartwin Weber, Gernot Hausch, Ottmar Roth
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Patent number: 6673470Abstract: A surface treated tin-plated steel sheet which has an alloy layer formed on the surface of a steel sheet, a tin plating layer being formed on said alloy layer with a remaining exposed portion of the alloy layer having an area of 30% or more of that of the alloy layer and, formed on said tin plating layer and said exposed portion of the alloy layer, a coating film containing P and Si in an amount of 0.5 to 100 mg/m2 and 0.1 to 250 mg/m2, respectively; and a chemical treatment solution for use in preparing the steel sheet which comprises a phosphate ion, a tin ion and a silane coupling agent and has a pH of 1.5 to 5.5. The surface treated tin-plated steel sheet is free from chromium which causes problems from an environmental view point, and also is excellent in adhesion with a paint, corrosion resistance after being coated, rust resistance, and formability.Type: GrantFiled: July 8, 2002Date of Patent: January 6, 2004Assignee: Kawasaki Steel CorporationInventors: Tomofumi Shigekuni, Hisatada Nakakoji, Kazuo Mochizuki, Chiaki Kato
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Patent number: 6673472Abstract: The present invention provides a hot-dip Al-plated steel sheet for fuel tanks excellent in air-tightness after welding and corrosion resistance subsequent to forming. The present invention provides, as concrete means, a hot-dip Al-plated steel sheet comprising a steel sheet comprising up to 0.003% of C, up to 0.03% of Si, up to 0.3% of Mn, up to 0.02% of P, up to 0.006% of N, up to 0.1% of Ti, Ti and Nb in a total amount of at least the atomic equivalent of (C+N) and up to 0.2%, 1 to 30 ppm of B, and the balance Fe and unavoidable impurities, and a plating layer comprising 2 to 13% of Si, and the balance Al and unavoidable impurities on the surface of the steel sheet, the steel sheet showing a total elongation of at least 45% after plating. Alternately, the hot-dip Al-plated steel sheet may have a chromate coating in an amount of 5 to 100 mg/m2 on the surface, and it may also have a resin coating on the top surface. As a result, the Al-plated steel sheet is excellent in elongation after Al plating.Type: GrantFiled: February 26, 1998Date of Patent: January 6, 2004Assignee: Nippon Steel CorporationInventors: Jun Maki, Teruaki Izaki, Masahiro Fuda, Tetsurou Takeshita, Nobyoshi Okada, Takayuki Ohmori
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Patent number: 6673468Abstract: The invention concerns a composite material in band or slab form made of two cover plates (1, 2), made of steel, which can be resistance welded together via electrically conductive bodies (4), and an intermediate layer (3) made of a filler material in which the bodies (4) are embedded, with the bodies (4), which are implemented as curved slugs, lying pressed flat between the cover plates (1, 2). This type of composite material is produced in that the filler material (3′) for the intermediate layer (3) is applied as a paste to a band (1′) serving as the first cover plate (1) as it passes by and the curved slugs (4′) are, after being laid on the filler material (3′), pressed into it at least until contact is made via a band (2′) supplied as the second cover plate (2) in a welding gap (8) formed by two roller electrodes (6,7) of a resistance welding device and the slugs are largely pressed flat with the bands (1′, 2′) during welding.Type: GrantFiled: December 3, 2001Date of Patent: January 6, 2004Assignee: Thyssen Krupp Stahl AGInventors: Friedrich Behr, Hans-Dieter Gall, Cetin Nazikkol
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Patent number: 6670048Abstract: A sintered sprocket is provided in which surface pressure resistance can be improved without using a forging processing. An Fe-based sintered alloy which contains C at 0.2 to 0.5% by weight, Mo at 0.2 to 1.0% by weight, and Ni at 0.2 to 1.0% by weight, and which exhibits a metallic structure in which an internal base layer comprises ferrite and bainite and in which the ferrite adjoins voids, is subjected to a rolling and is then subjected to carburizing and hardening.Type: GrantFiled: May 29, 2002Date of Patent: December 30, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Akira Fujiwara
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Patent number: 6667110Abstract: A hybrid steel cord and method of making such cord which includes, in contact with one or more carbon steel wire(s), at least one stainless steel wire whose microstructure contains less than 20% of martensite (% by volume). Articles made of plastic and/or rubber, in particular tire envelopes or the carcass reinforcement plies of such envelopes embodying such cords.Type: GrantFiled: September 13, 1999Date of Patent: December 23, 2003Assignee: Compagnie Générale des Establissements Michelin - Michelin & CieInventors: François-Jacques Cordonnier, Eric Depraetere