Titanium, Zirconium Or Hafnium Containing Patents (Class 420/492)
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Patent number: 4606889Abstract: Disclosed is a moderate electrical conductivity copper alloy containing titanium and beryllium wherein the ratio of titanium to beryllium is about 10:1. The alloy has an outstanding combination of useful engineering properties: mechanical strength, physical characteristics and good fabricability. A typical alloy contains, in weight percent, about 2.3 titanium, 0.2 beryllium and the balance copper plus normal impurities found in alloys of this class.Type: GrantFiled: November 7, 1985Date of Patent: August 19, 1986Assignee: Cabot CorporationInventors: Sherwood Goldstein, Paul J. Scherbner, deceased
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Patent number: 4604328Abstract: Reactive metal-precious metal ductile alloys containing controlled amounts of Cu and Ni and mixtures thereof are suitable for brazing ceramics, other non-metallic and metallic materials.Type: GrantFiled: November 16, 1984Date of Patent: August 5, 1986Assignee: GTE Products CorporationInventor: Howard Mizuhara
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Patent number: 4603090Abstract: Brazing alloys of copper-indium-titanium alloy can be used to braze ceramic to metal. Other elements such as gold, manganese, palladium, nickel, aluminum, tin singly or in combination can also be added.Type: GrantFiled: April 5, 1984Date of Patent: July 29, 1986Assignee: GTE Products CorporationInventor: Howard Mizuhara
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Patent number: 4601879Abstract: A copper-nickel-tin-titanium-alloy suitable for use as a base material for semiconductors includes, by weight, 0.25 to 3.0% nickel, 0.25 to 3.0% tin, and 0.12 to 1.5% titanium, the remainder being copper and common impurities. An alternative form of the inventive alloy includes, by weight, 0.25 to 3.0% nickel, 0.25 to 3.0% tin, 0.12 to 1.5% titanium, and 0.05 to 0.45% chrome, the remainder being copper and common impurities. A method for making these alloys includes the steps of homogenizing the alloy at temperatures of 850.degree. to 950.degree. C. between 1 and 24 hours, hot-rolling the alloy at temperatures of 600.degree. to 800.degree. C. in one or more passes, and cooling the alloy to room temperature with a cooling speed of between 10.degree. C. per minute and 2000.degree. C. per minute.Type: GrantFiled: May 24, 1985Date of Patent: July 22, 1986Assignee: Wieland-Werke AGInventors: Wolfgang Durrschnabel, Heinrich Stuer, Jorg Steeb, Franz J. Puckert
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Patent number: 4599119Abstract: An age-hardening copper titanium alloy containing 2 to 6% by weight of titanium, and composed of a substantially fully solution heat-treated structure having an average crystal grain size not exceeding 25 microns. When the alloy is cold-rolled after its solution heat treatment, its elongation in the rolling direction and that in a direction perpendicular thereto have a difference of within 20% therebetween, and its bend radius to thickness ratios in those two directions are substantially equal to each other.Type: GrantFiled: November 13, 1984Date of Patent: July 8, 1986Assignee: NGK Insulators, Ltd.Inventors: Kazuo Ikushima, Yoshio Itoh, Toshiaki Ishihara
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Patent number: 4591535Abstract: An article is disclosed consisting essentially of a ceramic substrate bonded to a metal or ceramic member by a brazing alloy. In these processes, the ceramic surface is prepared such that it is relatively defect free prior to brazing.Type: GrantFiled: June 20, 1984Date of Patent: May 27, 1986Assignee: GTE Products CorporationInventor: Howard Mizuhara
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Patent number: 4589930Abstract: A casting metal mold made of a copper alloy consisting essentially of 0.01 to 3 wt % of zirconium, 0.03 to 5 wt % of titanium and, as required, 0.03 to 2 wt % of chromium and the balance substantially copper, the copper alloy having a structure in which precipitate phase consisting of compound of copper and at least one of zirconium, titanium and chromium exists, and having a Brinell hardness between H.sub.B 100 to H.sub.B 500 and an electric conductivity between 20 and 80% in terms of IACS. This metal mold suffers only small deformation during casting and, hence, less liable to cause run-out of the melt. The casting obtained by this metal mold, therefore, has no or only slight fins.Type: GrantFiled: February 29, 1984Date of Patent: May 20, 1986Assignee: Hitachi, Ltd.Inventor: Yozo Kumagai
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Patent number: 4575451Abstract: A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of niobium, the total quantity of chromium and niobium in said contact material being 10% by weight and above.Type: GrantFiled: November 16, 1983Date of Patent: March 11, 1986Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Eizo Naya, Mitsuhiro Okumura
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Patent number: 4566915Abstract: A process for producing an age-hardened copper titanium alloy strip includes preparing a copper titanium alloy melt, casting it, hot-working the cast alloy, cold-working the hot-worked alloy as required, annealing the hot-worked or cold-worked alloy, solution heat-treating the annealed alloy, and then the solution heat-treated alloy is age-hardened. The alloy is annealed at a temperature of 500.degree. C. to 700.degree. C. for one to 20 hours. Its solution heat treatment is terminated before or approximately as soon as a precipitated secondary phase has formed a complete solid solution in a master phase, so that the master phase may have an average crystal grain size not exceeding 25 microns. It is preferably terminated within three minutes. The alloy has a titanium content of 2 to 6% by weight.Type: GrantFiled: November 13, 1984Date of Patent: January 28, 1986Assignee: NGK Insulators, Ltd.Inventors: Kazuo Ikushima, Yoshio Itoh, Toshiaki Ishihara
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Patent number: 4559200Abstract: A copper alloy excellent in general properties such as heat resistance, electric and heat conductivity and mechanical strength and suitable for use as materials for lead frames of electronic parts, heat exchanger fins, or the like can be obtained by optimizing the Fe and Ti contents and proportions of a Cu-Fe-Ti ternary alloy and adding thereto a suitable amount of one or more members selected from the group consisting of Mg, Sb, V Misch metal, Zr, In, Zn, Sn, Ni, Al, and P.Type: GrantFiled: August 7, 1984Date of Patent: December 17, 1985Assignee: Mitsui Mining and Smelting Company, Ltd.Inventors: Syuichi Yamasaki, Hiroshi Yamaguchi, Yousuke Taniguchi
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Patent number: 4534938Abstract: A method for adding alloying elements having relatively low boiling points to base metal shaving relatively high melting points. The base metal is combined with the melting point-lowering metal; or metalloid and to this mixture is added the desired alloying metal or metals. No special equipment is required for this method.Type: GrantFiled: August 15, 1984Date of Patent: August 13, 1985Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Howard B. Bomberger, Francis H. Froes
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Patent number: 4517033Abstract: A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of tantalum, the total quantity of chromium and tantalum in said contact material being 10% by weight and above.Type: GrantFiled: October 31, 1983Date of Patent: May 14, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Mitsuhiro Okumura, Eizo Naya, Michinosuke Demizu
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Patent number: 4460659Abstract: A copper alloy welding filler for use in arc welding copper to produce sound welds with good mechanical strength and high electrical conductivity is disclosed. The filler consists essentially of a zirconium-boron copper alloy filler metal wherein the concentration ratio of zirconium to boron is at least about 4 to 1; the minimum concentration of boron is about 300 PPM; and the concentration of zirconium is a maximum of about 6000 PPM. The minimum level of about 300 PPM boron on a weight basis eliminates porosity in the weld; while zirconium below about 6000 PPM is effective to eliminate weld cracking without having a detrimental effect on the electrical conductivity.Type: GrantFiled: June 8, 1983Date of Patent: July 17, 1984Assignee: General Electric CompanyInventors: James R. Pedersen, David M. Parker, Robert G. Trechel
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Patent number: 4451430Abstract: A copper alloy is produced by introducing copper base metal in a crucible, i.e. part of the metal copper is put in the crucible after introduction of the additives into the crucible for rapidly cooling the melt to a casting temperature.Type: GrantFiled: September 23, 1983Date of Patent: May 29, 1984Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Seika Matidori, Koichi Teshima, Masato Sakai
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Patent number: 4426033Abstract: Reactive metal-copper alloys containing specified amounts of a third metal selected from the group consisting of silicon, tin, germanium, manganese, nickel, cobalt and mixtures thereof are suitable for brazing ceramics, other non-metallic and metallic materials.Type: GrantFiled: September 20, 1982Date of Patent: January 17, 1984Assignee: GTE Products CorporationInventor: Howard Mizuhara
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Patent number: 4406858Abstract: Tensile strength and ductility of copper-base alloys having poor intermediate temperature range ductility are substantially increased by relatively small alloying additions of hafnium or zirconium.Type: GrantFiled: December 30, 1981Date of Patent: September 27, 1983Assignee: General Electric CompanyInventors: David A. Woodford, Rodger H. Bricknell
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Patent number: 4330328Abstract: A process and apparatus for producing a copper metal or alloy wherein a first material is added to a molten metal, consisting essentially of copper preferably in a furnace. After the first material is added, the molten metal is passed through a filtration device to remove particulate matter from the molten metal and/or reduce the oxygen content of the molten metal. After filtration, a second material is added to the molten metal.Type: GrantFiled: October 24, 1980Date of Patent: May 18, 1982Assignee: Olin CorporationInventors: Derek E. Tyler, Harvey P. Cheskis, Louis P. Stone, Michael J. Pryor