Copper Containing Patents (Class 420/582)
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Patent number: 5198190Abstract: A method of recycling hazardous and non-hazardous industrial wastes to reclaim valuable metals, metal alloys, and metal oxides, and to produce mineral wool. Wastes including hazardous wastes of USEPA Series D, F, P, K, and U are pulverized and blended with liquids such as water or wastewater to produce a homogeneous mass. Calcium from calcium-stabilized wastes is used to enhance the quality of the mineral wool, lower the sulfur content, remove phosphorous, and raise pH to facilitate metal reduction. The mass is formed into briquettes and melted in a cupola or shaft furnace in the presence of carbon or aluminum to reduce metals. Other types of furnaces such as an electric arc furnace may be used to avoid the steps of forming and curing briquettes. Reduction is carried out at temperatures between 1660 and 3100 degrees Fahrenheit. Reducible metals are reduced and drawn off into molds. Substantial purity is obtained in the recovered reducible metals.Type: GrantFiled: December 21, 1990Date of Patent: March 30, 1993Assignee: Enviroscience, Inc.Inventors: Carl T. Philipp, Bobby H. Sims
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Patent number: 5188799Abstract: A wear-resistant copper-base alloy having superior self-lubricity includes, by weight %,Ni: 10.0 to 30.0%;Si: 0.5 to 3%;Co: 2.0 to 15.0%;at least one metal selected from the group consisting of Mo, W, Nb and V:2.0 to 15.0%; andthe balance being Cu and unavoidable impurities, and having a structure in which hard phase grains containing 5 vol% or more of silicide of at least one metal selected from the group consisting of Mo, W, Nb and V are uniformly dispersed in an amount of 10 to 60 vol% in a copper-rich matrix, to which 2.0 to 15.0% of Fe and/or 1.0 to 10.0% of Cr may be further added.Type: GrantFiled: March 19, 1992Date of Patent: February 23, 1993Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuhiko Mori, Minoru Kawasaki, Shin Yoshida, Hiroyuki Murase, Takashi Saito, Kouji Tanaka, Yoshio Shimura
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Patent number: 5183517Abstract: An improved permanent magnet composition comprising 22 to 28 wt % R, 5 to 16 wt % iron, 0.2 to 6.5 wt % copper, 0.1 to 6 wt % manganese, 0.5 to 6 wt % A, 0.1 to 2 wt % B and the balance cobalt, in which R is at least one of rare earth elements including yttrium, A is at least one of zinc and zirconium and B is at least one element selected from the group of aluminum, bismath and thallium.Type: GrantFiled: September 11, 1991Date of Patent: February 2, 1993Assignee: Fuji Electrochemical Co., Ltd.Inventors: Takaaki Yasumura, Teruo Kiyomiya, Yasutoshi Mizuno, Kazuo Matsui
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Patent number: 5167919Abstract: An alloy composition of aluminum, zinc, iron, copper, and calcium when held molten at about 800 degrees C. by induction heating is capable of complete destruction of organic compounds that may be liquid or associated with sludges and at the same time is capable of reacting with metallic compounds in the sludges or liquid wastes to either dissolve or render the metals non-leachable.Type: GrantFiled: March 15, 1990Date of Patent: December 1, 1992Inventor: Anthony S. Wagner
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Patent number: 5098654Abstract: An alloy based on copper, manganese and aluminum, said alloy further containing iron and nickel, besides unavoidable impurities, with less than 7% by weight zinc and possible other metals, which alloy is formed of 10-55% by weight manganese, 4-10% by weight aluminum, 0.5-5% by weight iron, 2-8% by weight nickel and 0.5-2.5% by weight titanium, the balance being copper.Type: GrantFiled: January 3, 1991Date of Patent: March 24, 1992Assignee: Boliden LDM Nederland B.V.Inventor: Petrus Wenschot
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Patent number: 5096667Abstract: Disclosed is a reversible, electrochemical cell having a high electrochemical activity, hydrogen storage negative electrode. The negative electrode is formed of a reversible, multicomponent, multiphase, electrochemical hydrogen storage alloy. The hydrogen storage alloy is capable of electrochemically charging and discharging hydrogen in alkaline aqueous media. In one preferred exemplification the hydrogen storage alloy is a member of the family of hydrogen storage alloys, derived from the V-Ti-Zr-Ni and V-Ti-Zr-Ni-Cr alloys in which the V, Ti, Zr, Ni and Cr are partially replaced by one or more modifiers, and the alloy has the composition:(V.sub.y'-y Ni.sub.y Ti.sub.x'-x Zr.sub.x Cr.sub.z).sub.a M'.sub.b M".sub.c M.sub.d.sup.ivwhere x' is between 1.8 and 2.2, x is between 0 and 1.5, y' is between 3.6 and 4.4, y is between 0.6 and 3.5, z is between 0.00 and 1.44, a designates that the V-Ni-Ti-Zr-Cr component as a group is from 70 to 100 atomic percent of the alloy, b,c,d,e, . . .Type: GrantFiled: November 24, 1989Date of Patent: March 17, 1992Assignee: Energy Conversion Devices, Inc.Inventor: Michael A. Fetcenko
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Patent number: 5085712Abstract: An iron/copper/chromium alloy material for a high-strength lead frame or pin grid array, which comprises 20 to 90% by weight of Cu and 2.5 to 12% by weight of Cr, with the balance being mainly iron, and which has an average grain size number of at least 10 in each of the iron/chromium phase and the copper phase, is prepared by continuous casting, cold-working, and aging.Type: GrantFiled: May 23, 1990Date of Patent: February 4, 1992Assignee: Nippon Steel CorporationInventors: Kunio Watanabe, Satoshi Nishimura, Kunishige Kaneko
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Patent number: 5082625Abstract: Herein disclosed, as a Ni-based corrosion-resistant alloy to be used for build-up welding, is an alloy which contains 0.5 to 2.3 wt % of copper, 0.1 to 5.3 wt % of molybdenum, 1.0 to 29.0 wt % of at least one carbide forming element except molybdenum, 1.0 to 30.0 wt % of iron, 0.6 to 2.5 wt % of silicon, 0.008 up to 1.0 wt % of boron, and 0.04 to 1.6 wt % of carbon, the remainder being composed of nickel and incidental impurities.Type: GrantFiled: December 6, 1989Date of Patent: January 21, 1992Assignee: Toyota Jidosha Kabushiki KaishaInventors: Sinji Kato, Soya Takagi, Minoru Kawasaki, Kazuhiko Mori, Katsuhiko Ueda
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Patent number: 5045411Abstract: A gold based alloy containing gold, silver, copper, zinc, silicon, iron, boron, nickel and indium for the manufacture of gold articles is described which has a lower melting point, extended remelting capabilities, high resistance to cracking, improved color consistency and increased ductility.Type: GrantFiled: January 10, 1990Date of Patent: September 3, 1991Assignee: P.M. Refining, Inc.Inventors: Arthur D. Taylor, Malcolm Warren, Perry H. Berger
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Patent number: 5011659Abstract: Austenitic stainless steel casting alloys which have excellent resistance to seawater, other chloride solutions, and a broad spectrum of other chemical substances, but which do not require solution heat treatments, after welding or other exposure to heat, such as in the slow cooling of large, rangy castings from the molten state. The alloys also posses very high tensile elongation values, excellent weldability and resistance to thermal and mechanical shock. The alloys are comprised, by weight, of from about 28% to about 34% Ni, from about 22% to about 26% Cr, from about 3.3% to about 4.4% Mo, from about 2% to about 3% W, from about 1% to about 3% Cu, from about 0.2% to about 0.9% Si, from about 0.3% to about 1.3% Mn, up to about 0.05%, but preferably not more than about 0.03% C, and the balance essentially iron, plus the usual impurities encountered in conventional production practice. The alloys may optionally contain up to about 0.3% Nb, up to about 0.20% Ti, and up to about 0.25% each of Al and V.Type: GrantFiled: March 22, 1990Date of Patent: April 30, 1991Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 5006054Abstract: Low density, high temperature and aluminum-rich intermetallic alloys displaying excellent elevated temperature properties, including oxidation resistance, are disclosed. Based on the aluminum/titanium system, specifically modifications of Al.sub.3 Ti compositions, useful alloys are derived from changes in crystal structure and properties effected by selected-site substitution alloying with manganese and/or chromium, and, where used, vanadium, or equivalent site-substituting alloying elements.Type: GrantFiled: March 30, 1989Date of Patent: April 9, 1991Assignee: Technology Development CorporationInventor: Donald E. Nikkola
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Patent number: 5002731Abstract: Disclosed is a cobalt-base alloy that has a valuable combination of both corrosion- and wear-resistant properties. The alloy nominally contains, in percent by weight, 25.5 chromium, 8.5 nickel, 3.0 iron, 5 molybdenum, 2 tungsten, 0.40 silicon, 0.75 manganese, 0.06 carbon, 0.08 nitrogen and the balance cobalt plus normal impurities normally found in alloys of this class. The alloy may also contain copper and certain "carbide formers" (i.e., columbium, tantalum, titanium, vanadium and the like) to tie up excess carbon and/or nitrogen that may be present.Type: GrantFiled: April 17, 1989Date of Patent: March 26, 1991Assignee: Haynes International, Inc.Inventors: Paul Crook, Aziz I. Asphahani, Steven J. Matthews
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Patent number: 5000914Abstract: A precipitation-hardening-type Ni-base alloy exhibiting improved resistance to stress corrosion cracking in a sour gas atmosphere containing elemental sulfur at high temperatures is disclosed. The alloy comprises essentially, by weight %;______________________________________ Cr: 12-25%, Mo: 5.5-15%, Nb: 4.0-6.0%, Fe: 5.0-25%, Ni: 45-60%, C: 0.050% or less, Si: 0.50% or less, Mn: 1.0% or less, P: 0.025% or less, S: 0.0050% or less, N: 0.050% or less, Ti: 0-1.0%, Al: 0-2.0%.Type: GrantFiled: November 23, 1987Date of Patent: March 19, 1991Assignee: Sumitomo Metal Industries, Ltd.Inventors: Masaaki Igarashi, Shiro Mukai, Yasutaka Okada, Akio Ikeda
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Patent number: 4981646Abstract: The present invention is directed to air-meltable, castable, workable alloys resistant to hot or cold chlorides and variety of chemical streams. The alloys consist essentially of, by weight, between about 20% and about 24% nickel, from about 22% to about 25% chromium, from about 5% to about 7% molybdenum, from about 0.7% to about 3.5% copper, up to about 0.08% carbon, up to about 0.35% nitrogen, up to about 0.8% columbian (niobium), up to about 1.5% manganese, up to about 1% silicon, and the balance essentially iron. Up to about 0.3% cobalt can also be present as an element naturally coexisting in certain ore deposits as a sister element to nickel and considered here to be part of the nickel content. The alloys of the present invention are of single phase austenitic matrices.Type: GrantFiled: April 17, 1989Date of Patent: January 1, 1991Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4898794Abstract: A hydrogen absorbing Ni,Zr-based alloy comprising 5 to 20% by weight of titanium (Ti), 10 to 37% by weight of zirconium (Zr), 5 to 30% by weight of manganese (Mn), 0.01 to 15% by weight of tungsten (W), 6 to 30% by weight of iron (Fe), and optionally at least one of 0.1 to 7% by weight of Cu, 0.05 to 6% by weight of Cr and 0.01 to 5% by weight of Al, and balance nickel (Ni) and unavoidable impurities; and a sealed Ni-hydrogen rechargeable battery comprising a negative electrode provided with a hydrogen absorbing alloy as an active material, an Ni positive electrode, a separator and an alkaline electrolytic solution, wherein the hydrogen absorbing alloy is composed of such hydrogen absorbing Ni,Zr-based alloy.Type: GrantFiled: July 17, 1989Date of Patent: February 6, 1990Assignee: Mitsubishi Metal CorporationInventors: Hidekazu Doi, Ritsue Yabuki
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Patent number: 4876065Abstract: Disclosed in an improvement in a known Ni-Cr-Fe alloy.The alloy of the invention contains 30 to 32% nickel; 26 to 28% chromium; 0.5 to 1.5% copper; 6 to 7% molybdenum; up to 2% manganese; up to 1.0% silicon; up to 0.2% aluminum; up to 0.03% carbon; 0.10 to 0.25% nitrogen; balance iron and usual impurities.The alloy of the invention has increased pitting corrosion potential and critical crevice corrosion and pitting corrosion temperatures whereas the resistance of the alloy to commercially pure phosphoric acid has not been decreased.Type: GrantFiled: May 19, 1988Date of Patent: October 24, 1989Assignee: VDM Nickel-Technologie AktiengesellschaftInventors: Manfred Rockel, Ernst Wallis, Michael Kohler, Ulrich Heubner, Rolf Kirchheiner
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Patent number: 4874577Abstract: Disclosed is a wear-resistant intermetallic compound alloy having superior machineability which consists essentially of: 45-60% of either Ni or Co or both with cobalt content of at least 5%, at least one of 0.1-2% of Hf and 0.05-2% of Re, 0-2% of at least one element selected from the group consisting of Si, P, Cu, Zn, Ga, Ge, Cd, In, Sn, Sb, Pb and Bi, 0-2% of C, and 0-5% of at least one element selected from the group consisting of Zr, Fe, V, Nb, Ta, Cr, Mo, W and Mn, the balance being Ti and incidental impurities, the percent being atomic percent.Type: GrantFiled: November 9, 1987Date of Patent: October 17, 1989Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventors: Saburo Wakita, Junji Hoshi
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Patent number: 4873055Abstract: This invention relates to alloys resistant to corrosion, and especially resistant to corrosion caused by contact with hot sulfuric acid of over 98% concentration.The alloys of the invention consist essentially by weight percentages of from about 19% to about 30% by weight Ni, from about 19% to about 27% by weight Cr, from about 0.3% to about 1.0% by weight Mo, from about 2.7% to 4.5% by weight Cu, from about 2.7% to about 4.7% by weight Mn, from about 2.45% to about 5.5% by weight Si, from about up to about 0.08% C by weight, and the balance essentially iron. The alloys may optionally contain up to 0.7% Cb partially replaced by up to 1% Ta, up to 0.6% W, up to 0.12% N and up to 0.8% Co, all by weight.Type: GrantFiled: December 20, 1988Date of Patent: October 10, 1989Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4869758Abstract: An iron/copper/chromium alloy material for a high-strength lead frame or pin grid array, which comprises 20 to 90% by weight of Cu and 2.5 to 12% by weight of Cr, with the balance being mainly iron, and which has an average grain size number of at least 10 in each of the iron/chromium phase and the copper phase, is prepared by continuous casting, cold-working, and aging.Type: GrantFiled: May 25, 1988Date of Patent: September 26, 1989Assignee: Nippon Steel CorporationInventors: Kunio Watanabe, Satoshi Nishimura, Kunishige Kaneko
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Patent number: 4840768Abstract: An austenitic alloy has high strength and corrosion resistance and includes from 27 to 32 weight percent nickel and 24 to 28 weight percent chromium. Up to 2.75 weight percent silicon, 3 weight percent copper and molybdenum and 2 weight percent manganese are included for contributing to the characteristics to the alloy rendering the alloy particularly useful for fabricating oil well tubular products. Only very low components of nitrogen, carbon, phosphorus and sulfur are included.Type: GrantFiled: November 14, 1988Date of Patent: June 20, 1989Assignee: The Babcock & Wilcox CompanyInventors: Henry A. Domian, Dale F. LaCount, Alex S. Miller, Kenneth D. Seibert
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Patent number: 4836867Abstract: An anisotropic rare earth magnet material is provided by a sputtering technique. The material has structural and magnetic anisotropy. Its composition is represented essentially by the following formula:(R.sub.1-a O.sub.a).sub.b M.sub.1-bwherein R means at least one of rare earth metal elements of Y and the lanthanide series of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu or a combination of Hf and at least one of the foregoing rare earth metal elements, M denotes Co or a combination of Co and at least one of Fe, Cu, Zr, Ti, Al and B, a is not greater than 0.05 (a.ltoreq.0.05), and b ranges from 0.1 to 0.5 (b=0.1-0.5).Type: GrantFiled: June 17, 1987Date of Patent: June 6, 1989Assignees: Research Development Corporation, Tokin CorporationInventors: Eishu Sugawara, Taketoshi Nakayama, Tsuyoshi Masumoto
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Patent number: 4836985Abstract: The present invention is directed to air-meltable, castable, weldable, machinable alloys of reasonable ductility and resistance to very hot concentrated sulfuric acid as well as to most other more dilute strengths of the acid either in the pure acid-water forms or containing additionally contaminants that might be encountered in practical applications. The alloys consist essentially of between about 36% and about 40.5% by weight nickel, from about 31% to about 33% by weight chromium, from about 4% to about 5.2% by weight molybdenum, from about 2.7% to about 4% by weight copper, from about 2.5% to about 6% by weight silicon, from about 0.40% to about 0.62% by weight nitrogen and the balance essentially iron. The instant alloys may also contain up to about 2% by weight manganese and up to 0.11% by weight carbon.Type: GrantFiled: August 19, 1988Date of Patent: June 6, 1989Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4834941Abstract: An Al-alloy containing Si, Fe, Cu and Mg and at least one of Mn and Co in the basic composition range of 8.0.ltoreq.Si.ltoreq.30.0 wt. %, 2.0.ltoreq.Fe.ltoreq.33.0 wt. %, 0.8.ltoreq.Cu.ltoreq.7.5 wt. %, 0.3.ltoreq.Mg.ltoreq.3.5 wt. %, 0.5.ltoreq.Mn.ltoreq.5.0 wt. % and/or 0.5.ltoreq.Co.ltoreq.3.0 wt. %, provided in a powder state. A sindered member formed of these Al-alloys displays high strength, excellent heat-resistivity and stress corrosion cracking resistivity. A structural member made of the sintered Al-alloy is manufactured through the steps of subjecting a powder press-shaped body formed at a temperature of 350.degree. C. or lower and at a pressure of 1,5.about.5.0 ton/cm to hot extrusion working at a temperature of 300.degree..about.400.degree. C. to form a raw material for forging, and then forge shaping the raw material at a temperature of 300.degree..about.495.degree. C.Type: GrantFiled: February 1, 1988Date of Patent: May 30, 1989Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Haruo Shiina
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Patent number: 4824638Abstract: The alloys of this invention are of low strategic element content, non-magnetic, resistant to chloride-containing solutions as well as a wide range of other chemical agents, air-meltable, castable, of greatly improved fabricability and weldability, and consist by weight percentages of from about 20.5% to about 35.5% by weight Ni, from about 23.5% to about 27.5% by weight Cr, from about 4.0% to about 6.7% by weight Mo, from about 0.7% to about 3.6% by weight Cu, up to about 0.09% by weight C, up to about 1.5% by weight Si, up to about 5% by weight Co, up to about 0.45% by weight N, up to about 1% by weight Ti, up to about 0.8% by weight Cb, and up to about 0.3% by weight Ce, La or Misch metal, up to about 2% by weight Mn, up to about 1.6% by weight Ta, and the balance essentially ironThe combined content by weight of Ni plus Co is at least about 25.5% by weight and exceeds the weight content of Cr by at least 2% but by not more than 8%.Type: GrantFiled: April 1, 1988Date of Patent: April 25, 1989Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4822693Abstract: The present invention relates to copper-iron-nickel composite materials having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Composite materials in accordance with the present invention consist essentially of about 10% to 80% copper and the balance iron plus nickel with the ratio of iron to nickel being in the range of from about 1.5:1 to about 2.0:1. Preferred composite materials have an iron to nickel ratio in the range of from about 1.6:1 to about 1.9:1.Type: GrantFiled: March 23, 1987Date of Patent: April 18, 1989Assignee: Olin CorporationInventors: Sankaranarayanan Ashok, Jacob Crane, Julius C. Fister
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Patent number: 4818483Abstract: An air-meltable, workable, castable, weldable, machinable, nonmagnetic alloy resistant to seawater and corrosive process fluids of the type that may be circulated in seawater-cooled heat exchangers. The alloy consists essentially of between about 3% and about 8% by weight manganese, between about 12% and about 28% by weight nickel, between about 17.3% and about 19% by weight chromium, between about 0.68% and about 3.51% by weight copper, between about 0.07% and about 0.25% by weight nitrogen, between about 5.9% and about 8% by weight molybdenum, up to about 0.08% by weight carbon, up to about 1.5% by weight silicon, up to about 0.66% by weight niobium, up to about 1.32% by weight tantalum, up to about 1% by weight vanadium, up to about 1% by weight titanium, up to about 0.6% by weight of a rare earth component selected from the group consisting of cerium, lanthanum, and misch metal, up to about 5% by weight cobalt, and between about 30% and about 56% by weight iron.Type: GrantFiled: December 29, 1986Date of Patent: April 4, 1989Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4816217Abstract: An austenitic, age-hardenable nickel-iron-chromium alloy exhibiting high-strength, good corrosion and polythionic acid resistance and having a low work hardening rate. The economic alloy is useful for industrial vessels such as heat exchangers, chemical and petrochemical equipment and, more particularly, tubes. The alloy includes about 25-29.5% nickel, about 14.5-17.5% chromium, about 2-3.5% molybdenum, about 2-5.5% copper, about 1-5% titanium plus aluminum, up to about 1.5% manganese, up to about 0.1% cerium, and the balance mostly iron.Type: GrantFiled: April 21, 1986Date of Patent: March 28, 1989Assignee: Inco Alloys International, Inc.Inventors: Thomas H. Bassford, James R. Crum
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Patent number: 4806305Abstract: Disclosed is a series of silicon rich nickel-base alloys that have a high degree of ductility and hot working properties. The alloys have the corrosion resistant characteristics comparable to cast HASTELLOY.RTM. alloy D (Ni - 9 Si - 3 Cu). The alloys have good tensile strength at temperatures up to 600.degree. C. comparing favorably with Alloy IN 718. In addition, the alloys may be produced by super plastic forming (isothermal forging). The nickel-base alloy typically contains 7 to 14% silicon, 0.5 to 6% vanadium, plus a number of optional modifying elements.Type: GrantFiled: May 1, 1987Date of Patent: February 21, 1989Assignee: Haynes International, Inc.Inventor: Warren C. Oliver
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Patent number: 4795610Abstract: An air-meltable, castable, weldable, non-magnetic alloy resistant to corrosion in chloride-containing fluids as well as in many other corrosive streams. The alloy consists essentially of between about 20.7% and about 27.2% by weight nickel, between about 19.3% and about 22.7% by weight chromium, between about 0.94% and about 2% by weight molybdenum, between about 2.6% and about 3.2% by weight copper, between about 3.2% and about 4.2% by weight manganese, between about 0.27% and about 2.02% niobium, between about 0.10% and about 0.25% by weight nitrogen, up to about 0.08% by weight carbon, up to about 0.9% by weight silicon, up to about 0.7% by weight titanium, up to about 1% by weight vanadium, up to about 0.6% by weight of a rare earth component selected from the group consisting of cerium, lanthanum, and misch metal, up to about 1% by weight cobalt, and the balance essentially iron. The sum of the nickel and cobalt contents should be between about 21.7% and about 27.2% by weight.Type: GrantFiled: April 23, 1987Date of Patent: January 3, 1989Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4765957Abstract: The alloys of this invention are of low strategic element content, nonmagnetic, resistant to damage by chloride- or other halide-containing solutions as well as to a wide variety of other chemical agents, airmeltable, castable, of improved fabricability and weldability and of higher chromium level but lower molybdenum contents than other alloys intended for chloride resistance. The alloys consist by weight percentages of from about 13.5% to about 29% Ni, from about 23 to about 26% Cr, from about 3.75 to about 6% Mo, from about 2.95 to about 4.5% Mn, from about 3 to about 6.39% Cu, from about 0.3 to about 2.07% Cb (Nb), from about 0 to about 1.5% Si, from about 0 to about 0.09% C, from about 0.10% to about 0.45% N, up to about 1% V, up to about 1% Ti, up to about 5% Co, as a partial substitute for Ni, up to about 0.3% Ce, La or Misch metal, and the balance essentially iron. The sum of the Ni and Co content is between about 18.5% and about 29% by weight.Type: GrantFiled: December 29, 1986Date of Patent: August 23, 1988Assignee: Carondelet Foundry CompanyInventor: John H. Culling
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Patent number: 4740353Abstract: New steel alloys which are both austenitic stainless having a Brinell hardness of 200-380.The new steel alloys consist essentially of the following components in the proportions indicated expressed in weight %:______________________________________ Mo 3-6 Cu 0.25-0.35 Si max 1.5 Mn max 1 C 0.12-0.30 Cr 12-22 Ni 8-25 Fe balance ______________________________________with the proviso that the relative proportion between Mo and C is governed by the formula weight % Mo - (weight % C.times.16)=from 1 to 2.5%.Optionally the new steel alloys may also contain Nb and Ta.The invention also concerns shaped objects made of any of the new steel alloys.Type: GrantFiled: September 8, 1986Date of Patent: April 26, 1988Assignee: Fertilizers & Chemicals Ltd.Inventors: Edward Cogan, Gedaliahu Engelberg
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Patent number: 4711826Abstract: The present invention relates to iron-nickel alloys having improved glass sealing properties. Alloys of the present invention contain from about 30% to about 60% nickel, from about 0.5% to about 3% silicon, from about 0.5% to about 3.5% aluminum and the balance essentially iron. Preferably, the alloys have a total aluminum plus silicon content of less than about 4%. The alloys of the present invention have particular utility in electronic and electrical applications. For example, they may be used as a lead frame or a similar component in a semiconductor package.Type: GrantFiled: January 27, 1986Date of Patent: December 8, 1987Assignee: Olin CorporationInventors: Eugene Shapiro, Michael L. Santella
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Patent number: 4591483Abstract: There are described noble metal alloys for dental purposes, especially for firing on dental porcelain which are low melting, do not discolor the porcelain, are repeatedly castable, and making possible brazing joints. These alloys containing 20 to 65% gold, 25 to 65% palladium, 0 to 7% gallium, 0.2 to 11% indium and/or tin, 0 to 2% copper, 0.05 to 1% ruthenium, iridium and/or rhenium, 0 to 1% vanadium, 0 to 1% iron and additionally 0.5 to 15% cobalt, with the proviso that the content of base metals must exceed 5%.Type: GrantFiled: February 22, 1985Date of Patent: May 27, 1986Assignee: Degussa AktiengesellschaftInventor: M. H. A Nawaz
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Patent number: 4578125Abstract: Disclosed is a comprising a powdered alloy composed of 23 to about 29% by weight of samarium, 0.2 to about 7% by weight of titanium, 3 to about 9% by weight of copper, 10 to about 25% by weight of iron, and the balance of cobalt principally; said powdered alloy being sintered to obtain a sintered body, followed by(a) annealing the sintered body at a cooling rate of not more than 5.degree. C./min from an annealing-initiating temperature of from 600.degree. to 900.degree. C., or(b) subjecting the sintered body to a multi-stepwise aging processing initiated from a higher temperature to a lower temperature within the temperature range of from 350.degree. to 900.degree. C.The magnet is excellent in all the magnetic properties such as residual magnetic flux density, coercive force and maximum energy product, and also excellent in antioxidation property.Type: GrantFiled: June 28, 1982Date of Patent: March 25, 1986Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Masashi Sahashi, Koichiro Inomata, Naoyuki Sori, Hideki Yamamiya
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Patent number: 4565587Abstract: A permanent magnet of R.sub.2 Co.sub.17 type crystal structure consisting essentially of, in percent by weight, at least one rare earth element within the range of 24 to 28, cobalt within the range of 48 to 53, copper within the range of 2 to 4.9, iron within the range of 18 to 30 and zirconium within the range of 1.7 to 3.0. By substituting zirconium for a portion of copper an optimum combination of coercive force and residual magnetization (saturation induction) may be achieved.Type: GrantFiled: December 23, 1983Date of Patent: January 21, 1986Assignee: Crucible Materials CorporationInventor: Kalatur S. V. L. Narasimhan
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Patent number: 4557895Abstract: A yellow gold alloy which resembles 10 karat gold in appearance and physical properties but has a gold content substantially less than 10 karat gold. The alloy consists essentially of 11% to 16% by weight gold, 28% to 34% by weight silver, 30% to 38% by weight copper, 8% to 12% by weight palladium, 7% to 10% by weight zinc, 0.2% to 0.4% silicon, and about 0.02% boron, and is particularly well suited for use in the manufacture of rings and other jewelry articles.Type: GrantFiled: December 10, 1984Date of Patent: December 10, 1985Assignee: Herff Jones, Inc.Inventors: Robert J. Karamon, Robert T. Allen
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Patent number: 4489040Abstract: Disclosed is an alloy eminently suited for use as a tubular product in deep, sour gas operations. The alloy has an optimum combination of corrosion resistance, high strength in the cold worked condition and resistance to sulfide stress cracking and stress corrosion cracking. A typical alloy contains, in weight percent, 0.03 carbon, 22 chromium, 36 iron, 3 molybdenum, 1 manganese, 36 nickel, 0.60 silicon, 0.15 nitrogen, up to 3 tungsten and incidental impurities including copper, cobalt, columbium, tantalum and titanium.Type: GrantFiled: April 2, 1982Date of Patent: December 18, 1984Assignee: Cabot CorporationInventors: Aziz I. Asphahani, Eugene W. Kelley, Juri Kolts
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Patent number: 4487744Abstract: An austenitic stainless corrosion resistant alloy and articles made therefrom having good resistance to pitting and crevice corrosion in oxidizing chloride-bearing media combined with resistance to general corrosion and to intergranular corrosion in oxidizing media, containing in weight percent about______________________________________ w/o ______________________________________ C 0.06 Max. Mn 1.4 Max. Si 0.9 Max. P 0.035 Max. S 0.035 Max. Cr 20-26 Ni 34-44 Mo 3-<5.1 Cu 0.1-<3.1 N 0.4 Max. B 0.005 Max. Ce + La 0.4 Max. Added Nb 1 Max. Ti 0.5 Max. ______________________________________and the balance iron. The amount of nitrogen is not greater than that which can be retained in solution. When present niobium plus titanium ranges upward from a minimum which is sufficient to combine stoichiometrically with the amount of carbon present in excess of 0.025 w/o. In this composition the elements chromium, nickel, molybdenum and copper are balanced so that the value of Correlation I is equal to or less than 1.Type: GrantFiled: July 28, 1982Date of Patent: December 11, 1984Assignee: Carpenter Technology CorporationInventors: Terry A. DeBold, Douglas G. Frick, John S. Kutzamanis
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Patent number: 4487743Abstract: In an age hardenable controlled expansion alloy essentially devoid of chromium, the combination of short term tensile properties and elevated temperature properties, particularly notch rupture strength, are improved by the inclusion therein of silicon in an amount leass than 1%.Type: GrantFiled: August 20, 1982Date of Patent: December 11, 1984Assignee: Huntington Alloys, Inc.Inventors: John S. Smith, Darrell F. Smith, Jr.
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Patent number: 4457891Abstract: A hydrogen storage material is described which comprises an alloy of the composition of 25 to 30.9% by weight of Ti, about 10 to about 42% by weight of V and about 27.1 to about 65.1% by weight of Mn. The proviso is that more than 2 up to at most 2.2 atoms are present per titanium atom. Up to about 40%, preferably about 10 to about 40%, of the vanadium atoms can be replaced by iron atoms and up to about 10%, preferably about 3 to about 10%, can be replaced by aluminum atoms, but not more than about 40% of the vanadium atoms in total are replaced. Moreover, in place of titanium, a mixture can be used in which up to about 20% of the titanium fraction are replaced by Ca, Y, La, misch metal, or mixtures thereof. Up to about 0.2 atom of Cr per the titanium atom, up to about 0.1 atom of Ni per titanium atom and up to about 0.05 atom of Cu per titanium atom can also be present, but not more than about 0.1 atom of Ni plus Cu, these atoms replacing the same number of vanadium atoms.Type: GrantFiled: March 14, 1983Date of Patent: July 3, 1984Assignee: Daimler-Benz AktiengesellschaftInventors: Otto Bernauer, Klaus Ziegler
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Patent number: 4456481Abstract: Very significant improvements in the hot workability of an age hardenable nickel base alloy containing 14 to 20 percent chromium, 1.4 to 5.3 percent titanium, 1.2 to 4.7 percent aluminum, 8 to 22 percent cobalt, up to 10 percent molybdenum, up to 3.5 percent tungsten, 0.004 to 0.040 percent boron, 0.02 to 0.15 percent carbon and about 52 to about 62 percent nickel are achieved by melting the raw materials under vacuum in the presence of lime, and forming a desulfurizing lime slag on the surface of the molten raw materials, and thereafter adding magnesium thereto just prior to casting the alloy, preferably while maintaining the molten raw material under an inert gas atmosphere.Type: GrantFiled: March 14, 1983Date of Patent: June 26, 1984Assignee: Teledyne Industries, Inc.Inventor: Robert L. McGinniss
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Patent number: 4448749Abstract: A heat resistant cast iron-nickel-chromium alloy outstanding in creep fracture strength at high temperatures and resistance to thermal shock and to carburizing and containing the following components in the following proportions in terms of % by weight:C:0.3-0.6,O<Si.ltoreq.2.0,O<Mn.ltoreq.2.0,Cr:20-30,Ni:30-40,Nb+Ta:0.3-1.5,N:0.04-0.15,B:0.0002-0.004,Ti:0.04-0.50 and0.07<Al.ltoreq.0.50the balance being substantially Fe.Type: GrantFiled: September 17, 1982Date of Patent: May 15, 1984Assignee: Kubota Ltd.Inventors: Junichi Sugitani, Teruo Yoshimoto, Makoto Takahashi
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Patent number: 4430297Abstract: Disclosed is a hard wear resistant nickel based alloy including a carbide-former, preferably niobium, and essentially cobalt free but which has similar properties to cobalt, chromium, tungsten, carbon alloys. Typically the alloy has a composition, in parts by weight, Cr-34 C-1.2, Mo-10, Fe-3, Si-1, Nb-3, Ni-balance. The alloys of the invention are suitable for surface or welding consumables, and as articles for making hardfacing depositions.Type: GrantFiled: January 7, 1980Date of Patent: February 7, 1984Assignee: Cabot CorporationInventor: Paul Crook
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Patent number: 4415532Abstract: Disclosed is a cobalt-base superalloy containing about 32% cobalt, 8% nickel, 26.5% chromium, 2.5% tungsten, 5% niobium, about 1% each manganese and silicon, about 0.4% carbon, and the balance about 23% iron plus incidental impurities and modifiers normally found in alloys of this class. The alloy is readily processed in the form of wrought products, castings, metal powder and all forms of welding and hardfacing materials. The outstanding characteristics of the new alloy include the resistance to cavitation erosion and galling, low cost and minimal use of strategic metals.Type: GrantFiled: March 5, 1981Date of Patent: November 15, 1983Assignee: Cabot CorporationInventor: Paul Crook
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Patent number: 4410489Abstract: Disclosed is a nickel-base alloy which provides excellent corrosion resistance to a variety of severe environments, especially hot phosphoric acid. The alloy preferably contains, in weight percent: about 30 chromium, about 4 molybdenum, about 2 tungsten, about 1 Cb/Ta, about 1.5 copper, about 14 iron and the balance nickel plus the impurities and modifying elements usually found in alloy of this class. The alloy is eminently suited for use as articles in chemical processing apparatus in the manufacture and/or containment of phosphoric acid and sulfuric acid.Type: GrantFiled: July 17, 1981Date of Patent: October 18, 1983Assignee: Cabot CorporationInventors: Aziz I. Asphahani, William L. Silence, Paul E. Manning
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Patent number: 4410604Abstract: An economical brazing alloy composition includes high amounts of iron. A brazed assembly includes iron-based brazing alloys.Type: GrantFiled: November 16, 1981Date of Patent: October 18, 1983Assignee: The Garrett CorporationInventors: Matthew J. Pohlman, Lynn E. Kindlimann
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Patent number: 4409181Abstract: A composition is provided consisting essentially of from about 50% to about 99% by weight of a silver-copper based brazing alloy and as an additive, from about 1% to about 50% to the composition, of a metal or metal alloy having essentially the same density as the brazing alloy and being essentially insoluble in the brazing alloy. The additives are selected from (a) molybdenum, (b) mixtures of molybdenum and at least one metal selected from the group consisting of cobalt, iron and tungsten and (c) mixtures of tungsen and at least one metal selected from iron and cobalt.Type: GrantFiled: August 24, 1981Date of Patent: October 11, 1983Assignee: GTE Products CorporationInventor: Brian C. Coad
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Patent number: 4402745Abstract: New iron rich metal alloys containing aluminum and copper along with specific amounts of boron are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between .about.10.sup.5 to 10.sup.7 .degree.C./sec. The as-quenched ribbon, powder etc. consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure which includes borides; this heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.Type: GrantFiled: April 27, 1981Date of Patent: September 6, 1983Assignee: Marko Materials, Inc.Inventors: Ranjan Ray, Viswanathan Panchanathan, Bill C. Giessen
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Patent number: 4401622Abstract: A nickel-chromium-iron alloy intended principally for automotive turbocharger applications, the alloy being characterized by good stress - rupture strength, ductility, tensile strength, etc. and containing, generally speaking, 10-15% Cr, 18-30% Fe, 3-4.25% Ti, 2.25-3.5% Al, Ti+Al from 6 to 7.25%, ratio of Ti to Al of at least 0.9 and up to 1.6, 4-6% Mo, 0.01-0.2% B, 0.03-0.3% C, balance essentially nickel.Type: GrantFiled: April 20, 1981Date of Patent: August 30, 1983Assignees: The International Nickel Co., Inc., Howmet CorporationInventors: Raymond C. Benn, John R. Mihalisin, Leroy R. Curwick, Howard F. Merrick
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Patent number: 4400349Abstract: An alloy useful for manufacturing high strength oil-well casing, tubing and drill pipes for use in oil-well operations is disclosed. The alloy exhibits improved resistance to stress corrosion cracking in the H.sub.2 S--CO.sub.2 --Cl.sup.- environment, which comprises the following alloy composition:______________________________________ C: .ltoreq. 0.1% Si: .ltoreq. 1.0% Mn: 3-20% P: .ltoreq. 0.030% S: .ltoreq. 0.005% N: 0-0.30% sol. Al .ltoreq. 0.5% Ni: 20-60% Cr: 15-35% Mo: 0-12% W: 0-24% Cr(%) + 10 Mo(%) + 5 W(%) .gtoreq. 50% 1/2 Mn(%) + Ni(%) .gtoreq. 25% 1.5% .ltoreq. Mo(%) + 1/2 W(%) .ltoreq. 12% Cu: 0-2.0% Co: 0-2.0% Rare Earths: 0-0.10% Y: 0-0.20% Mg: 0-0.10% Ti: 0-0.5% Ca: 0-0.10% Fe and incidental impurities: balance.Type: GrantFiled: June 17, 1982Date of Patent: August 23, 1983Assignee: Sumitomo Metal Industries, Ltd.Inventors: Takeo Kudo, Yasutaka Okada, Taishi Moroishi, Akio Ikeda, Hiroo Ohtani, Kunihiko Yoshikawa