Molybdneum Containing Patents (Class 420/123)
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Patent number: 7442338Abstract: The present invention develops a manufacture method, via conventional liquid metallurgy, of finished and semi-finished metallic parts as casting, ingot, blooms and slabs in alloys base Fe, base Ni and base Co, microstructurally reinforced with complex molybdenum and titanium carbide particles, by means of their previous elaboration and latter addition to the molten alloy in the melting furnace. Then, when the alloy solidifies, they are inserted and distributed within the grains of the base metallic matrix, enhancing their mechanical properties and behavior at room as well as at high temperatures.Type: GrantFiled: May 13, 2004Date of Patent: October 28, 2008Assignee: Fundacion InasmetInventors: Ignacio Erauskin Lopetegui, Manuel Gutierrez Stampa, Inigo Agote Beloki, Manuel Orbegozo Ibarguren
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Patent number: 7404866Abstract: A sliding member includes a superficial portion forming a sliding surface. The superficial portion includes an oxygen-containing alloy containing at least one metallic element selected from the group consisting of molybdenum and tungsten in an amount of from 2 to 80% by weight; and oxygen in an amount of from 0.5 to 15% by weight. The sliding member sustains lubricating characteristics given to the sliding surface over a long period of time to maintain a low friction coefficient and durability.Type: GrantFiled: June 26, 2002Date of Patent: July 29, 2008Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuyuki Nakanishi, Hideo Tachikawa, Hiroyuki Mori, Tadashi Oshima
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Publication number: 20080156403Abstract: Disclosed herein is a steel for high-speed cold working which exhibits good cold workability during working and also exhibits high hardness after working. The steel for high-speed cold working contains C: 0.03 to 0.6% (by mass), Si: 0.005 to 0.6%, Mn: 0.05 to 2%, P: no more than 0.05% (excluding 0%), S: no more than 0.05% (excluding 0%), and N: no more than 0.04% (excluding 0%), with the remainder being iron and inevitable impurities and the amount of dissolved nitrogen in the steel being no less than 0.006%.Type: ApplicationFiled: December 5, 2007Publication date: July 3, 2008Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd)Inventors: Tomokazu MASUDA, Takuya Kochi, Shogo Murakami, Hiroshi Yaguchi
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Patent number: 6942741Abstract: An iron alloy strip having a gage of 0.1 to 5 mm and a magnetic field strength variation within the strip of 0 to 10 Hz, made of an iron alloy consisting essentially of, in % by weight, 0.0001-0.02% of C, 0.0001-5% of Si, 0.001-0.2% of Mn, 0.0001-0.05% of P, 0.0001-0.05% of S, 0.0001-5% of Al, 0.001-0.1% of O, 0.0001-0.03% of N, 0-10% of Co, 0-10% of Cr, 0.01-5% in total of Ti, Zr, Nb, Mo, V, Ni, W, Ta and/or B, and the balance of Fe, and having a saturation magnetic flux density of 1.7-2.3 Tesla, a maximum relative permeability of 1,200-22,000 and a coercive force of 20-380 A/m is suited for use as yokes in voice coil motor magnetic circuits. The iron alloy strip is highly resistant to corrosion and eliminates a need for a corrosion resistant coating.Type: GrantFiled: August 7, 2002Date of Patent: September 13, 2005Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masanobu Shimao, Masaaki Nishino, Takehisa Minowa
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Patent number: 6822831Abstract: An object of the present invention is to provide a recording head having a magnetic pole simultaneously possessing a high saturation magnetic flux density, a high permeability and a high electric resistivity, and the magnetic pole of the recording head is a polycrystalline film comprising Fe whose content is not less than 57.5 atomic % and not more than 94.5 atomic %; one or more kinds of elements selected from the element group of Al, B, Ga, Si, Ge, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and Rh, whose whole content is not less than 1 atomic % and not more than 15 atomic %; N whose content is not less than 0.5 atomic % and not more than 10 atomic %; and O whose content is not less than 1.5 atomic % and not more than 22.5 atomic %.Type: GrantFiled: February 12, 2002Date of Patent: November 23, 2004Assignee: Fujitsu LimitedInventors: Shoji Ikeda, Yuji Uehara, Ikuya Tagawa, Naoki Takeguchi, Masahiro Kakehi
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Publication number: 20040202567Abstract: A steel for use in high strength pinion shaft which is not refined and used by applying high frequency hardening with less occurrence of peeling during hobbing, having high surface hardness, impact value and torsional strength after high frequency hardening, and with less heat treatment strains during high frequency hardening, containing, on the mass % basis; C; 0.45-0.55%, Si: 0.10-0.50%, MA: 0.50-1.20%, P: 0.025% or less, S: 0.025% or less, Mo: 0.15-0.25%, B: 0.0005-0.005%, Ti: 0.005-0.10%, and N: 0.015% or less, satisfying; 0.80≦Ceq 0.95 and f value≦1.0, and the balance of Fe and inevitable impurities, as well as a manufacturing method thereof.Type: ApplicationFiled: January 23, 2004Publication date: October 14, 2004Applicant: Koyo Seiko Co., Ltd.Inventors: Katsunori Takada, Koichiro Inoue, Katsushi Goto, Atsuhiko Ohta, Tomoyuki Takei
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Publication number: 20040191110Abstract: The object of the present invention is to provide a sliding member which sustains lubricating characteristics given to the sliding surface over a long period of time to maintain the low friction coefficient and durability.Type: ApplicationFiled: December 29, 2003Publication date: September 30, 2004Inventors: Kazuyuki Nakanishi, Hideo Tachikawa, Hiroyuki Mori, Tadashi Oshima
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Patent number: 6645320Abstract: There is provided a steel sheet which can simultaneously achieves the following objects: high strength is obtained by quenching with reliability; and excellent ductility is ensured, and further which is excellent in corrosion resistance, plating properties, and spot weldability. The steel sheet is so configured as to satisfy the following composition requirements: on a mass basis, C: 0.11 to 0.22%, Mn: 0.1 to less than 0.5%, Cr and/or Mo: a total amount of 0.1 to 0.5%, and B: 0.0005 to 0.005%, where C: the content of C (% by mass), Cr: the content of Cr (% by mass), and Mo: the content of Mo (% by mass), wherein T≧0.19 where T=C+(Cr+Mo)/5.Type: GrantFiled: December 17, 2001Date of Patent: November 11, 2003Assignee: Kobe Steel, Ltd.Inventors: Tatsuya Asai, Tetsuo Soshiroda
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Patent number: 6645317Abstract: A steel material suitable for producing components for picture tubes, in particular for producing masks, shielding covers or frames for such picture tubes, with outstanding characteristics concerning the requirements to be met by such components, according to the invention, comprises the following composition (in weight %): C: 0.0001-0.01%, N: 0.0001-0.0035%, Mn: 0.01-0.7%, Si: <0.03%, P: <0.1%, S: <0.1%, Alacid-soluble <0.008%, Cr: <0.1%, Mo: 0.0001-0.08%, Sn: <0.015%, if necessary further additives with the remainder being iron and the usual impurities.Type: GrantFiled: June 6, 2002Date of Patent: November 11, 2003Assignees: Thyssen Krupp Stahl AG, Wickeder Westfalenstahl Holding GmbHInventors: Volker Brandenburg, Carl-Heinz Schütz, Klaus-Peter Helmetag
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Patent number: 6586117Abstract: A steel for forming a high strength steel sheet contains, in mass %, C: at most 0.04%, Si: at most 0.4%, Mn: 0.5-3.0%, P: at most 0.15%, S: at most 0.03%, Al: at most 0.50%, N: at most 0.01%, and Mo: 0.01-1.0%. Steel sheet formed from the steel is suitable for use as automotive panels.Type: GrantFiled: October 19, 2001Date of Patent: July 1, 2003Assignee: Sumitomo Metal Industries, Ltd.Inventors: Shigeki Nomura, Hiroyuki Nakagawa, Yoshiaki Nakazawa
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Patent number: 6562207Abstract: Sputter target, method of manufacture of same and sputter coating process using the target as a sputtering source are disclosed. The sputter target comprises an Me/Si multi-phase, consolidated blend wherein the Si component is present in a very small amount of about trace—0.99 mole Si:1 mole Me. Preferably, Me comprises one or more of Ta, Ti, Mo, or W. The targets are made from the requisite powders via HIP consolidation to provide densities of greater than 98 % of the theoretical density. The targets are especially useful in reactive cathodic sputtering systems employing N2 as the reactive gas to form amorphous Me/Si/N layers.Type: GrantFiled: January 14, 2000Date of Patent: May 13, 2003Assignee: Tosoh SMD, Inc.Inventor: Eugene Y. Ivanov
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Publication number: 20030044303Abstract: A method for forming a plated magnetic thin film of high saturation magnetization and low coercivity having the general form Co100-a-bFeaMb, where M can be Mo, Cr, W, Ni or Rh, which is suitable for use in magnetic recording heads that write on narrow trackwidth, high coercivity media. The plating method includes four current application processes: direct current, pulsed current, pulse reversed current and conditioned pulse reversed current.Type: ApplicationFiled: May 18, 2001Publication date: March 6, 2003Applicant: Headway Technologies, Inc.Inventors: Chaopeng Chen, Kevin Lin, Jei Wei Chang
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Patent number: 6428631Abstract: A high-strength steel sheet having excellent fatigue property, excellent formability and resistance to softening of the heat affected zone after welding, comprising: 0.01 to 0.15 mass % of C, 0.005 to 1.0 mass % of Si, 0.1 to 2.2 mass % of Mn, 0.001 to 0.06 mass % of P, 0.001 to 0.01 mass % of S, 0.0005 to 0.01 mass % of N, 0.001 to 0.1 mass % of Al, 0.005 to 0.05 mass % of Nb, 0.05 to 0.5 mass % of Mo, when necessary, 0.001 to 0.02 mass % of Ti, 0.2 to 2.0 mass % of Cu and 0.05 to 2.0 mass % of Ni, and the remainder of Fe, wherein the components satisfy the following expression (A). 0.Type: GrantFiled: March 16, 2000Date of Patent: August 6, 2002Assignee: Nippon Steel CorporationInventors: Toshimasa Tomokiyo, Hirokazu Taniguchi, Ryo Maruta
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Publication number: 20010001049Abstract: A cold-rolled steel strip or hot-dip coated cold-rolled steel strip for use as a fire-proof building member has composition consisting of 0.01-0.25 wt. % C, up to 1.5 wt. % Si, 0.05-2.5 wt. % Mn, up to 0.1 wt. % P, no more than 0.02 wt. % S, 0.005-0.1 wt. % Al, 0.05-1.0 wt. % Mo, optionally 0.005-0.2 wt. % one or more selected from Ti, Nb, V and W, optionally one or more of 0.05-0.6 wt. % Cu, 0.05-0.6 wt. % Ni, 0.05-3.0 wt. % Cr and 0.0003-0.003 wt. % B and the balance being essentially Fe except inevitable impurities. The cold-rolled steel strip is manufactured by hot-rolling, acid-pickling, cold-rolling and then annealing at a temperature above its recrystallization temperature but below 950° C. The hot-dip coated cold-rolled steel strip is manufactured in the same way but in-line heating a cold-rolled steel strip at a temperature above its recrystallization temperature but below 950° C. and then immersing it into a coating bath.Type: ApplicationFiled: January 8, 2001Publication date: May 10, 2001Inventors: Yuichi Higo, Seiichi Hamanaka, Toru Fujita
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Patent number: 6149862Abstract: An alloy and alloy product has about 1.3% to 1.7% by weight concentration of silicon, along with iron, alloying elements, and inevitable impurities and exhibits improved resistance to hydrogen embrittlement and sulfide stress cracking in an intensive hydrogen-charged medium wherein H from the medium acts as an alloying element. The alloy is characterized by an Fe--Si--H system wherein Fe is a donor element with respect to Si and Si is an acceptor element with respect to Fe. Further, the alloying elements are Fe--Si noninteractive elements with respect to Fe and Si, such that the presence of the alloying elements are not donor or acceptor elements with respect to Fe or Si. In several alloy compositions, the alloy has between about 1.38% to 1.63% weight Si. The alloy may further include between about 0.10% to 0.25% weight of C. In one particular alloy, the alloy composition includes about 0.18% of C; although, in one alloy product, an alloy is used having about 0.16% to 0.24% weight of C.Type: GrantFiled: May 18, 1999Date of Patent: November 21, 2000Assignee: The Atri Group Ltd.Inventors: Naum I. Gliklad, Avgust B. Kuslitskiy, Leonid A. Kuslitskiy
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Patent number: 6110301Abstract: A low alloy steel for use in building up industrial components subjected to service conditions requiring good impact toughness, resistance to tempering, and resistance to temper embrittlement, for example, for use as a build up layer for steel mill caster rolls and a submerged arc welding wire for deposition thereof. The composition of low alloy steel has less than about 0.1% C by weight, between about 1.5% and about 5.0% Ni by weight, and between about 0.5% and about 3.0% Mo by weight. Vanadium, Cr, and other carbide-formers are excluded from the low alloy steel sufficiently to avoid any significant precipitation of carbides upon deposition of the low alloy steel by welding onto an industrial component.Type: GrantFiled: July 21, 1998Date of Patent: August 29, 2000Assignee: Stoody CompanyInventors: Daya Singh, Ravi Menon
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Patent number: 5830285Abstract: A fine graphite uniform dispersion steel material excellent in cold workability, cuttability and hardenability, which has graphite finely and uniformly dispersed therein, and a production method for producing the same. The steel contains at least 0.30 to 1.0% of C, 0.4 to 1.3% of Si, 0.3 to 1.0% of Mn, 0.0003 to 0.006% of B, 0.002 to 0.010% of N and 0.05 to 0.20% of Mo as the basic components and contains graphite having a mean particle diameter of not more than 4.0 .mu.m and a number of particles per unit and of at least 3,000 per mm.sup.2. The production method includes at least the steps of cooling the steel having these components at a cooling start temperature of not less than an A.sub.rl point, a cooling end temperature of not more than an M.sub.s point and a mean cooling rate of 5.degree. to 100.degree. C./s.Type: GrantFiled: August 23, 1996Date of Patent: November 3, 1998Assignee: Nippon Steel CorporationInventors: Sakae Katayama, Toshimi Tarui, Masahiro Toda, Ken-ichiro Naito
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Patent number: 5817191Abstract: An iron-based, cobalt-containing soft magnetic alloy suitable for use as a core in a magnetic switch or other exciting circuits has a cobalt content of 6 through 30 weight percent, at least one of the elements chromium, molybdenum, vanadium and tungsten in range of 3 through 8 weight percent, and a remainder iron, possibly including inconsequential contaminants. The alloy has a coercive field strength of lower than or equal to 3.2 A/cm, and a saturation flux density of greater than 1.9 Tesla.Type: GrantFiled: August 26, 1997Date of Patent: October 6, 1998Assignee: Vacuumschmelze GmbHInventors: Kurt Emmerich, Hartwin Weber, Hermann Wegerle
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Patent number: 5718776Abstract: In the present invention, a steel product having a specified composition comprising by weight C: 0.02 to 0.25%, Si: 0.01 to 2.0%, Mn: 0.30 to 1.5%, Al: 0.003 to 0.10%, Nb: 0.005 to 0.10%, and Mo: 0.05 to 1.00% with the balance consisting of Fe and unavoidable impurities is used to prepare a steel plate having a thickness of 3 to 100 mm (the upper limits of the Nb and Mo contents each being 0.025% particularly for a plate thickness of 3 to 25 mm), and the ratio of the yield stress of the steel plate at a temperature T, .sigma..sub.yT, to the yield stress of the steel plate at room temperature, .sigma..sub.y, over the temperature range of room temperature to 600.degree. C. is brought to a value falling within the following range:1.00-1.083.times.10.sup.-3 T<(.sigma..sub.yT /.sigma..sub.y)<1.16-5.101.times.10.sup.-4 T.Further, the constituents of a welding material are specified to bring the .gamma..sub.3 transformation temperature to below 620.degree. C.Type: GrantFiled: March 20, 1996Date of Patent: February 17, 1998Assignee: Nippon Steel CorporationInventors: Atsuhiko Yoshie, Takashi Fujita, Yokimi Kawashima, Masaaki Nagahara, Kazuhiro Kojima, Tadashi Kasuya, Yukihiko Horii, Tsukasa Yoshimura
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Patent number: 5503654Abstract: Disclosed are an Fe-based alloy powder adapted for sintering, an Fe-based sintered alloy, and a process for producing the Fe-based sintered alloy. The Fe-based alloy powder or the matrix of the Fe-based sintered alloy consists, percent by weight, essentially of 2.0 to 15% Co, 2.0 to 10% Mo, and the balance of Fe and inevitable impurities. The Fe-based alloy powder exhibits superb compressibility and corrosion resistance, and accordingly the Fe-based sintered alloy made therefrom exhibits excellent wear resistance, corrosion resistance and oxidation resistance. The Fe-based sintered alloy is further improved in the excellent properties by dispersing novel Ni-based alloy hard particles in the matrix.Type: GrantFiled: April 27, 1995Date of Patent: April 2, 1996Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yositaka Takahashi, Akira Manabe, Tadataka Kaneko, Hiroshi Okajima, Yoshihiko Ito, Setsuto Daiza
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Patent number: 5456766Abstract: Process for carbonitriding a steel comprising:0.75-1.1% by weight of C;up to 1.0% by weight of Si;less than 0.015% by weight of P;up to 0.5% by weight of Mo;up to 1.2% by weight of Mn;0.5-2% by weight of Cr,the remainder being Fe,by exposing it at elevated temperatures to an atmosphere comprising at least carbon monoxide, hydrogen, nitrogen and added ammonia. This is carried out by exposing it, between 780.degree. and 900.degree. C., for from 1 to 10 hours, to an atmosphere comprising at least carbon monoxide, hydrogen and ammonia with a carbon activity between 0.90 and 1.10 and a nitrogen potential between 0.10 and 0.60% N.Type: GrantFiled: May 23, 1994Date of Patent: October 10, 1995Assignee: SKF Industrial Trading & Development Company, B.V.Inventors: Johan M. Beswick, Adian M. Kerrigan, Jan T. Slycke, Terence T. Vollmer
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Patent number: 5284528Abstract: Metallic glasses having high permeability, low coercivity, low ac core loss, low exciting power, and high thermal stability are disclosed. The metallic glasses are substantially completely glassy and consist essentially of about 71 to 79 atom percent iron, about 1 to 6 atom percent of at least one member selected from the group consisting of chromium, molybdenum, tungsten, vanadium, niobium, tantalum, titanum, zirconium and hafnium, about 12 to 24 atom percent boron, about 1 to 8 atom percent silicon, 0 to about 2 atom percent carbon, plus incidental impurities, the total of boron, silicon and carbon present ranging from about 18 to 28 atom percent. The alloy is heat treated at a temperature and for a time sufficient to achieve stress relief without inducing precipitation of discrete particles therein. Such a metallic glass alloy is especially suited for use in devices requiring high response to weak magnetic fields, such as ground fault interruptors and current/potential transformers.Type: GrantFiled: December 13, 1991Date of Patent: February 8, 1994Assignee: Allied-Signal Inc.Inventors: Ryusuke Hasegawa, Gordon Fish
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Patent number: 5122337Abstract: Steel is described which is improved by dissolving components of the steel that oppose its workability into a ferrite phase of the steel, and by combining components of the steel that impart desirable properties to it with carbon to form carbides. The steel is useful for highly stressed structural members.Type: GrantFiled: December 26, 1990Date of Patent: June 16, 1992Assignee: Ovako Steel, ABInventors: Thore Lund, Hans-Ake Munther
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Patent number: 5110378Abstract: Metallic glasses having high permeability, low coercivity, low ac core loss, low exciting power, and high thermal stability are disclosed. The metallic glasses are substantially completely glassy and consist essentially of about 71 to 79 atom percent iron, about 1 to 6 atom percent of at least one member selected from the group consisting of chromium, molybdenum, tungsten, vanadium, niobium, tantalum, titanium, zirconium and hafnium, about 12 to 24 atom percent boron, about 1 to 8 atom percent silicon, 0 to about 2 atom percent carbon, plus incidental impurities, the total of boron, silicon and carbon present ranging from about 18 to 28 atom percent. The alloy is heated treated at a temperature and for a time sufficient to achieve stress relief without inducing precipitation of discrete particles therein. Such a metallic glass alloy is especially suited for use in devices requiring high response to weak magnetic fields, such as ground fault interruptors and current/potential transformers.Type: GrantFiled: December 6, 1990Date of Patent: May 5, 1992Assignee: Allied-Signal Inc.Inventors: Ryusuke Hasegawa, Gordon Fish
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Patent number: 4975242Abstract: A carbon steel useful for machine structural use having improved cold forgability and induction hardenability comprises particular amounts of C, Si, Mn, Cr, S, P, O, N or further Mo and the balance being substantially Fe.Type: GrantFiled: November 27, 1989Date of Patent: December 4, 1990Assignees: Honda Gikan Kogyo Kabushiki Kaisha, Kawasaki Steel Corp.Inventors: Toshiyuki Hoshino, Nobuhisa Tabata, Isao Machida, Masayoshi Saga, Takeshi Takagi
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Patent number: 4961904Abstract: A steel composition containing iron, carbon, silicon, phosphorus and molybdenum, comprised of about 0.85-0.95 percent by weight carbon, up to about 0.1 percent by weight silicon, up to about 0.015 percent by weight phosphorus, about 0.20-0.4 percent by weight molybdenum, with the remainder percent by weight being iron.Type: GrantFiled: April 6, 1989Date of Patent: October 9, 1990Assignee: SKF Industrial Trading & Development Co. B.V.Inventor: John M. Beswick
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Patent number: 4909843Abstract: A highly wear-resistant sintered alloy is to be provided, with which, using conventional sintering technology and no additional hardening treatment, commodity parts are to be produced, which, in respect to their wear property are to be equivalent to chilled cast iron parts. They should have a surface roughness of approximately 50 Rockwell and only a slight shrinkage. This is accomplished with an iron-nickel-copper-molybdenum sintered alloy with addition of phosphorus, which contains a proportion of carbon, which exceeds the phosphorus added by at least a factor of 2. Essentially, the alloy has the following composition:1.0-5.0% (by weight) of nickel (Ni)1.0-3.0% (by weight) of copper (Cu)0.3-1.0% (by weight) of molybdenum (Mo)0.3-0.6% (by weight) of phosphorus (P)1.0-2.Type: GrantFiled: October 2, 1987Date of Patent: March 20, 1990Assignee: Etablissement SupervisInventor: Karl Leithner
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Patent number: 4758406Abstract: Molybdenite is roasted under controlled conditions to provide a polymolybdenum oxide composition having an oxygen content in excess of the stoichiometric oxygen content for MoO.sub.2 and less than that for MoO.sub.3, such that the composition contains MoO.sub.3 equivalent in excess of 5% and ranging up to 15% by weight, preferably, from about 10% to 15% by weight. The polymolybdenum oxide composition can be used to introduce molybdenum into baths of molten steel and the like with high recovery of the molybdenum content in the bath and with quiet addition characteristics as compared to the use of MoO.sub.3 per se. Preferably, a Herreshoff type roaster is used and the production rate of the furnace producing the new product is substantially increased, with an exit gas richer in SO.sub.2, as compared to use of the same roaster in roasting molybdenite to form MoO.sub.3 per se.Type: GrantFiled: November 25, 1987Date of Patent: July 19, 1988Assignee: Amax Inc.Inventors: Harry H. K. Nauta, Thomas A. R. Laurin
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Patent number: 4731112Abstract: A method of making a molten ferroalloy product in a melting furnace by charging a briquet consisting essentially of metallized iron, granulated alloy metal oxide, and a carbon source, such as coke breeze, to the melting furnace, burning solid carbonaceous material to reduce the alloy metal oxide to metallized form and to heat the charge to form a molten ferroalloy product. Fluxes and slag formers are also charged to the furnace as required.Type: GrantFiled: June 17, 1986Date of Patent: March 15, 1988Assignee: Midrex International, B.V. Rotterdam, Zurich BranchInventor: Glenn E. Hoffman
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Patent number: 4668591Abstract: A matrix for magnetic separators which comprises wire or ribbon of a crystalline magnetic alloy having a fine-grained structure and a supersaturated solid solution structure.Type: GrantFiled: March 11, 1985Date of Patent: May 26, 1987Assignee: Hitachi, Ltd.Inventors: Tetsuroh Minemura, Joo Ishihara, Masaichi Nagai, Takeo Tamamura
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Patent number: 4623387Abstract: Amorphous alloys containing zirconium as an amorphous forming metal and having teh formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.Type: GrantFiled: February 5, 1985Date of Patent: November 18, 1986Assignee: Shin-Gijutsu Kaihatsu JigyodanInventors: Tsuyoshi Masumoto, Kiyoyuki Esashi, Masateru Nose
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Patent number: 4623408Abstract: Nitrogen-containing amorphous alloys having a combination of superior properties which are highly valuable and desirable for ferromagnetic materials or superconducting materials are produced by sputtering metallic materials and nitrogen compounds containing semi-metal or semiconducting metal, such as boron or silicon, without requiring the use of nitrogen gas. The produced alloy has a novel structure, represented by the formula:MxLyNz(wherein M is at least one metal or alloy; L is at least one semimetal or semiconducting element; and x, y and z are fractional atomic percentages totaling 100 (i.e., x+y+z=100) and the value of y+z being 10 or more and the respective values of x, y, z being not zero).Type: GrantFiled: January 16, 1985Date of Patent: November 18, 1986Assignees: Hideaki Karamon, Research Development Corporation of JapanInventors: Hideaki Karamon, Keiichi Ogawa
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Patent number: RE34278Abstract: A steel composition containing iron, carbon, silicon, phosphorus and molybdenum, comprised of about 0.85-0.95 percent by weight carbon, up to about 0.1 percent by weight silicon, up to about 0.015 percent by weight phosphorus, about 0.20-0.4 percent by weight molybdenum, with the remainder percent by weight being iron.Type: GrantFiled: September 30, 1992Date of Patent: June 8, 1993Assignee: SKF Engineering & Research Center B.V.Inventor: John M. Beswick