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71. 发明授权

US4681623A Process for producing alloy powder containing rare earth metals 失效
标题翻译：含稀土金属的合金粉的制造方法
公开(公告)号：US4681623A
公开(公告)日：1987-07-21
申请号：US877128
申请日：1986-06-23
申请人： Yasuhiro Okajima , Yasuhiro Tsugita , Tamaki Takechi , Syuji Okada
发明人： Yasuhiro Okajima , Yasuhiro Tsugita , Tamaki Takechi , Syuji Okada
IPC分类号： B22F9/20 , C22B5/04 , C22B59/00 , C22C1/04 , H01F1/057 , B22F9/00
CPC分类号： C22B59/00 , B22F9/20 , C22B5/04 , C22C1/0441 , H01F1/0573
摘要： An alloy metal powder which contains rare earth metals and which has a uniform composition and contains a minimum of residual reducing agent and oxygen is produced by (1) preparing a mixture composed of (a) a powder of rare earth metal oxide, (b) a powder of a metal which is difficult to volatize at 900.degree. to 1300.degree. C., (c) at least one reducing agent selected from alkali metals, alkaline earth metals, and hydrides thereof, and (d) at least one chloride selected from alkali metal chlorides and alkaline earth metal chlorides, (2) heating the mixture in an inert gas atmosphere or under vacuum to provide a reaction mixture, and (3) treating the reaction mixture by a wet process.
摘要翻译：通过（1）制备由（a）稀土金属氧化物粉末，（b）和（b）组成的混合物制备含有稀土金属并且具有均匀组成并含有最少残余还原剂和氧的合金金属粉末，在900〜1300℃下难以挥发的金属粉末，（c）至少一种选自碱金属，碱土金属和氢化物的还原剂，和（d）至少一种选自碱金属氯化物和碱土金属氯化物，（2）在惰性气氛或真空中加热混合物以提供反应混合物，和（3）通过湿法处理反应混合物。

72. 发明授权

US4539041A Process for the reduction of metallic compounds by polyols, and metallic powders obtained by this process 失效
标题翻译：通过多元醇还原金属化合物的方法和通过该方法获得的金属粉末
公开(公告)号：US4539041A
公开(公告)日：1985-09-03
申请号：US563621
申请日：1983-12-20
申请人： Michel Figlarz , Fernand Fievet , Jean-Pierre Lagier
发明人： Michel Figlarz , Fernand Fievet , Jean-Pierre Lagier
IPC分类号： B22F9/24 , B22F9/20 , C22B3/16 , B22F9/00
CPC分类号： C22B3/16 , B22F9/20 , Y02P10/234
摘要： A process for reducing in a liquid phase a solid compound selected from the oxide, hydroxide or salt of a metal selected from the group consisting of gold, palladium, iridium, osmium, copper, silver, nickel, cobalt, lead and cadmium comprises heating said solid compound suspended in a polyol and thereafter isolating the formed metallic precipitate.
摘要翻译：一种用于在液相中还原选自金，钯，铱，锇，铜，银，镍，钴，铅和镉的金属的氧化物，氢氧化物或盐的固体化合物的方法包括加热所述固体化合物悬浮在多元醇中，然后分离形成的金属沉淀物。

73. 发明授权

US4537641A Process for producing valve-metal anodes for electrolytic capacitors 失效
标题翻译：用于生产电解电容器的阀 - 金属阳极的方法
公开(公告)号：US4537641A
公开(公告)日：1985-08-27
申请号：US590740
申请日：1984-03-16
申请人： Wolf-Wigand Albrecht , Axel Hoppe , Uwe Papp , Rudiger Wolf
发明人： Wolf-Wigand Albrecht , Axel Hoppe , Uwe Papp , Rudiger Wolf
IPC分类号： H01G9/04 , B22F9/20 , H01G9/052 , H01G9/05
CPC分类号： H01G9/052 , B22F9/20
摘要： To produce valve-metal anodes for electrolytic capacitors, reducing agents are added to the already sintered and/or unsintered anode bodies to improve the electrical properties, whereupon heating is carried out at temperatures above the melting point of the reducing agents and below the temperatures conventionally used for sintering the valve-metal anodes.
摘要翻译：为了生产用于电解电容器的阀 - 金属阳极，将还原剂添加到已经烧结和/或未烧结的阳极体中以改善电性能，由此在高于还原剂的熔点的温度下进行加热并且低于常规温度用于烧结阀 - 金属阳极。

74. 发明授权

US4533565A Method for surface treatment of ferromagnetic fine powder and forming a magnetic recording device 失效
标题翻译：铁磁性细粉表面处理方法及形成磁记录装置
公开(公告)号：US4533565A
公开(公告)日：1985-08-06
申请号：US613759
申请日：1984-05-24
申请人： Tsutomu Okita
发明人： Tsutomu Okita
IPC分类号： B22F9/20 , C09D5/23 , C09D7/12 , G11B5/712 , H01F1/06 , H01F1/11
CPC分类号： G11B5/712
摘要： A method for the surface treatment of a ferromagnetic fine powder is disclosed. The method increases the dispersibility of the powder in a magnetic coating composition. The method comprises subjecting a magnetic composition to a dispersing processing, with the magnetic composition containing (1) a ferromagnetic fine powder, (2) at least one polar compound selected from a group consisting of such compounds as to have one or more of --COOH, --CONH.sub.2, --CONH.sub.2, --PO.sub.3 H, --SO.sub.3 H, --OH or --NH.sub.2 in a molecule and quaternary ammonium salts, and (3) an organic solvent capable of dissolving the polar compound, and evaporating the organic solvent from the magnetic composition.
摘要翻译：公开了一种铁磁性细粉末的表面处理方法。该方法增加了粉末在磁性涂料组合物中的分散性。该方法包括使磁性组合物进行分散处理，其中磁性组合物含有（1）铁磁性细粉末，（2）至少一种选自以下化合物的极性化合物：具有一个或多个-COOH ，-CONH 2，-CONH 2，-PO 3 H，-SO 3 H，-OH或-NH 2，和季铵盐，和（3）能够溶解极性化合物的有机溶剂，并从磁性组合物中蒸发有机溶剂。

75. 发明授权

US4519837A Metal powders and processes for production from oxides 失效
标题翻译：金属粉末和氧化物生产方法
公开(公告)号：US4519837A
公开(公告)日：1985-05-28
申请号：US604398
申请日：1984-04-26
申请人： Michael G. Down
发明人： Michael G. Down
IPC分类号： B22F9/20 , C22B5/04 , C22B34/12 , C22B34/14 , C22B60/02 , B22F9/00
CPC分类号： B22F9/20 , C22B34/1268 , C22B34/14 , C22B5/04 , C22B60/0291
摘要： Method of forming metal powders from the liquid metal reduction of metal oxides are described. The methods described include the steps of low temperature liquid metal reduction of the oxide, agitation of the reduction reaction mixture and/or distillation of excess reductant upon completion of the reduction step. These steps are designed to limit agglomeration and enhance the purity of the final powder produced. Metal powder produced in accordance with this invention has a basic particle size of 0.1 to 0.5 microns.
摘要翻译：描述了从金属氧化物的液态金属还原形成金属粉末的方法。所述方法包括在还原步骤完成时低温液态金属还原氧化物的步骤，还原反应混合物的搅拌和/或过量还原剂的蒸馏。这些步骤旨在限制附聚并提高所生产的最终粉末的纯度。根据本发明生产的金属粉末具有0.1至0.5微米的基本粒度。

76. 发明授权

US4290799A Ferromagnetic metal pigment essentially consisting of iron and a process for its production 失效
标题翻译：基本上由铁组成的铁磁金属颜料及其生产方法
公开(公告)号：US4290799A
公开(公告)日：1981-09-22
申请号：US124399
申请日：1980-02-25
申请人： Gerhard Schroeder , Gunter Buxbaum , Franz Hund , Heinrich-Christian Schopper , Rolf Naumann
发明人： Gerhard Schroeder , Gunter Buxbaum , Franz Hund , Heinrich-Christian Schopper , Rolf Naumann
IPC分类号： B22F9/22 , B22F9/20 , G11B5/706 , H01F1/047 , H01F1/06 , B22F1/00
CPC分类号： H01F1/065 , G11B5/70615
摘要： A metal powder, suitable for magnetic recording, consisting essentially of iron, the individual particles being acicular and containing on average no more then 5 pores and consisting on average of no more than 2 metal cores is produced by precipitating and oxidizing an aqueous iron-(II)-salt solution to produce finely divided acicular iron-(III)-oxide-hydroxide, stabilizing it as by treatment with cadmium, lead, calcium, magnesium, zinc, aluminum, chromium, tungsten, a phosphorus oxide and/or a boron oxide, converting it into ferromagnetic iron oxide of low pore content, and reducing it to metallic iron with a gaseous reducing agent at about 300.degree. to 600.degree. C.
摘要翻译：一种适用于磁记录的金属粉末，主要由铁组成，单个颗粒是针状的并且平均包含不超过5个孔，平均不超过2个金属芯构成，通过沉淀和氧化铁 - （ II）盐溶液以产生细分的针状铁 - （III） - 氧化物氢氧化物，通过用镉，铅，钙，镁，锌，铝，铬，钨，磷氧化物和/或硼处理来稳定化氧化物，将其转化成低孔含量的铁磁性氧化铁，并在约300℃至600℃下用气态还原剂将其还原成金属铁。

77. 发明授权

US4209320A Process for producing low-oxygen iron-base metallic powder 失效
标题翻译：生产低氧铁基金属粉末的方法
公开(公告)号：US4209320A
公开(公告)日：1980-06-24
申请号：US942023
申请日：1978-09-13
申请人： Yoshihiro Kajinaga , Minoru Nitta , Ichio Sakurada , Shunji Ito
发明人： Yoshihiro Kajinaga , Minoru Nitta , Ichio Sakurada , Shunji Ito
IPC分类号： B22F9/20 , C22C33/02 , B22F9/00
CPC分类号： C22C33/0235 , B22F9/20
摘要： A process for producing low-oxygen iron-base metallic powder are disclosed. The low-oxygen iron-base metallic powder is produced in a shaft-type apparatus comprising a preheating zone and an induction heating zone by alloying and/or admixing iron-base metallic raw powder to be subjected to a final reduction, which has an apparent density corresponding to 16 to 57% of theoretical true density, an oxygen content of not more than 6% by weight and a particle size of not more than 1 mm, with carbon or carbonaceous granule in an amount corresponding to not more than a target alloying carbon content of a final product (% by weight)+ an oxygen content of the powder just before the final reduction (% by weight).times. 1.35 to form a starting powder, preheating the starting powder at a temperature of 780.degree. to 1,200.degree. C. in a non-oxidizing atmosphere having a thermodynamically calculated oxygen partial pressure of not more than 2.1.times.10.sup.-1 mmHg and a dew point of not more than +5.degree. C. in the preheating zone to form a preheated and sintered cake (P-cake) with cylindrically sintered shell layer wherein the volume ratio of the shell layer is at least 20%, induction heating the P-cake at a temperature of 850.degree. to 1,400.degree. C. in the same atmosphere by applying an alternating power of 50 Hz to 500 kHz from power supply to effect deoxidation and decarburization to form an induction heated cake (I-cake), and then cooling and pulverizing the I-cake.
摘要翻译：公开了一种生产低氧铁基金属粉末的方法。低氧铁基金属粉末是通过合金化和/或混合铁基金属原料粉末进行最终还原而形成的预热区域和感应加热区域的轴型设备中生产的，其具有明显的密度对应于理论真密度的16〜57％，氧含量不超过6重量％，粒径不大于1mm，碳或碳质颗粒的量不大于目标合金化最终产品的碳含量（重量％）+最终还原前的粉末的氧含量（重量％）×1.35，形成起始粉末，在780〜1200℃的温度下预热起始粉末在预热区内具有不大于2.1×10-1mmHg的热力学计算的氧分压和不高于+5℃的露点的非氧化性气氛中，以形成预热和烧结的饼（P- 蛋糕）壳层的体积比至少为20％，通过施加50Hz至500kHz的交流功率，在相同气氛中在850℃至1400℃的温度下感应加热P饼电源进行脱氧脱碳，形成感应加热饼（I饼），然后冷却粉碎I饼。

78. 发明授权

US4093454A Nickel-base sintered alloy 失效
标题翻译：镍基烧结合金
公开(公告)号：US4093454A
公开(公告)日：1978-06-06
申请号：US744932
申请日：1976-11-24
申请人： Yuichi Saito , Osamu Mayama
发明人： Yuichi Saito , Osamu Mayama
IPC分类号： B22F9/20 , C22C1/04 , C22C19/05 , C22C32/00 , B22F1/00
CPC分类号： C22C1/0433 , B22F9/20 , C22C32/0052 , Y10S75/95
摘要： A nickel-base sintered alloy which comprises: being manufactured from a reduced powder by the conventional powder metallurgy process with said reduced powder as a material powder, said reduced powder being prepared by simultaneously reducing a mixed powder consisting of powders of oxides of elements constituting said sintered alloy with a carbon powder added and mixed therein, and said reduced powder consisting of powders of said constituent elements and powders of carbides thereof; and consisting essentially of, in weight percentage:______________________________________ chromium from 10.0 to 35.0 % tungsten from 0.5 to 15.0 % cobalt from 0.2 to 12.0 % molybdenum from 0.1 to 20.0 % iron from 0.1 to 20.0 % titanium from 0.05 to 2.00 % silicon from 0.05 to 1.50 % manganese from 0.05 to 1.00 % carbon from 0.1 to 3.5 % ______________________________________ And the balance nickel and incidental impurities.The above-mentioned nickel-base sintered alloy, also containing, in weight percentage, from 0.05 to 1.00% boron and from 0.1 to 2.0% aluminum.These nickel-base sintered alloys provide a relatively wide range of sintering temperatures applicable in the manufacture thereof, and have furthermore a high sintered density of at least 95% of the theoretical value and are excellent in machinability, heat resistance, wear resistance and corrosion resistance.
摘要翻译：一种镍基烧结合金，其特征在于，包括：通过常规粉末冶金方法用所述还原粉末作为原料粉末由还原粉末制造，所述还原粉末是通过同时还原由构成所述粉末的元素的氧化物粉末组成的混合粉末制备的，烧结合金，其中加入和混合碳粉，所述还原粉末由所述组成元素的粉末和其碳化物粉末组成; 并且以重量百分数计：10.0％至35.0％的铬} 0.5％至15.0％的钨）0.2％至12.0％的钴，0.1％至20.0％的铁，0.1％至20.0％的钛，0.05至2.00 ％）硅0.05％〜1.50％}锰，0.05〜1.00％}碳0.1〜3.5％}和平衡镍和偶发性污染物。

79. 发明授权

US4072501A Method of producing homogeneous mixed metal oxides and metal-metal oxide mixtures 失效
标题翻译：制备均匀混合金属氧化物和金属 - 金属氧化物混合物的方法
公开(公告)号：US4072501A
公开(公告)日：1978-02-07
申请号：US787128
申请日：1977-04-13
申请人： Thomas C. Quinby
发明人： Thomas C. Quinby
IPC分类号： B22F9/20 , B22F5/00 , B22F9/22 , C01B13/36 , C22C1/10 , G21F9/14 , G21F9/30 , B22F1/02 , C22B5/02 , C22C43/00
CPC分类号： C22C1/1026 , B22F5/00 , B22F9/22 , G21F9/14 , G21F9/302
摘要： Metal powders, metal oxide powders, and mixtures thereof of controlled particle size are provided by reacting an aqueous solution containing dissolved metal values with excess urea. Upon heating, urea reacts with water from the solution leaving a molten urea solution containing the metal values. The molten urea solution is heated to above about 180.degree. C. whereupon metal values precipitate homogeneously as a powder. The powder is reduced to metal or calcined to form oxide particles. One or more metal oxides in a mixture can be selectively reduced to produce metal particles or a mixture of metal and metal oxide particles.
摘要翻译：通过使含有溶解的金属值的水溶液与过量的尿素反应来提供受控粒度的金属粉末，金属氧化物粉末及其混合物。加热时，尿素与来自溶液的水反应，留下含有金属值的熔融尿素溶液。将熔融的尿素溶液加热到约180℃以上，由此金属值作为粉末均匀地沉淀。将粉末还原成金属或煅烧形成氧化物颗粒。可以选择性地还原混合物中的一种或多种金属氧化物以产生金属颗粒或金属和金属氧化物颗粒的混合物。

80. 发明授权

US3909239A Method of controlling bulk density of ferrous powder 失效
标题翻译：控制铁粉堆积密度的方法
公开(公告)号：US3909239A
公开(公告)日：1975-09-30
申请号：US37410073
申请日：1973-06-27
申请人： MANNESMANN AG
发明人： FINDEISEN GERHARD , DAUTZENBERG NORBERT , GESELL HARTMUT
IPC分类号： B22F1/00 , B22F9/08 , B22F9/20 , C22C33/02 , B22F9/00
CPC分类号： B22F9/082 , C22C33/0235
摘要： The bulk density of ferrous powder made by atomizing molten steel is controlled by adding oxygen to the atomizing process and by reducing subsequently any resulting oxides to obtain a spongy surface layer of the particles, having thickness in dependence upon the added oxygen and reducing bulk density accordingly.
摘要翻译：通过向雾化过程中加入氧并通过减少随后产生的所得氧化物来获得颗粒的海绵状表面层来控制由雾化钢水制成的铁粉的体积密度，其具有依赖于加入的氧气的厚度并相应地降低体积密度。

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