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公开(公告)号：US5087291A
公开(公告)日：1992-02-11
申请号：US591046
申请日：1990-10-01
申请人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
发明人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , Y02P10/214
摘要： Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets.
摘要翻译： 稀土过渡金属（例如铁）废料（例如Nd-Fe-B废料）被熔化以降低其中的氧气和氮杂质的水平。 借助于杂质杂质和稀土的反应，熔融物中的杂质杂质在熔体中形成浮渣。 将纯化的熔体与浮渣分离以供再利用。 将熔体中的氧气和氮气降低到可用于在最终用途制品（例如永磁体）的制造中重新使用经处理的合金的水平。
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公开(公告)号：US5174811A
公开(公告)日：1992-12-29
申请号：US591040
申请日：1990-10-01
CPC分类号： C22B59/00 , C22B9/18 , Y02P10/214
摘要： Rare earth-transition metal (e.g., iron) scrap (e.g., Nd-Fe-B scrap) is flux (slag) remelted to reduce tramp non-metallic impurities, such as oxygen and nitrogen, and metallic impurities, such as Li, Na, Al, etc., picked up by the scrap from previous fabrication operations. The tramp impurities are reduced to concentrations acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. The scrap is electroslag or inductoslag melted using a prefused, rare earth fluoride-bearing flux of CaF.sub.2, CaCl.sub.2 or mixtures thereof or the slag resulting from practice of the thermite reduction process to make a rare earth-iron alloy.
摘要翻译： 稀土过渡金属（例如铁）废料（例如，Nd-Fe-B废料）是重熔的助熔剂（渣），以减少诸如氧和氮的杂质非金属杂质，以及金属杂质如Li，Na ，铝等，由先前的制造操作的废料拾起。 将杂质杂质还原成可用于在最终用途制品（例如永磁体）的制造中重新使用经处理的合金的浓度。 废料是使用预制的含稀土氟化物的CaF 2，CaCl 2或其混合物的熔渣或由实施铝酸盐还原工艺产生的制成稀土 - 铁合金的炉渣熔化的电渣或电渣。
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公开(公告)号：US4612047A
公开(公告)日：1986-09-16
申请号：US791972
申请日：1985-10-28
IPC分类号： C22C33/00
CPC分类号： C22C33/00 , Y10S75/959
摘要： An improved method for the preparation of high-purity rare earth-iron alloys by the aluminothermic reduction of a mixture of rare earth and iron fluorides.
摘要翻译： 通过稀土和氟化铁混合物的铝热还原制备高纯度稀土 - 铁合金的改进方法。
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公开(公告)号：US5073337A
公开(公告)日：1991-12-17
申请号：US554189
申请日：1990-07-17
CPC分类号： C01G49/009 , C01F17/0062 , C01P2002/72
摘要： A particulate mixture of Fe.sub.2 O.sub.3 and RE.sub.2 O.sub.3, where RE is a rare earth element, is reacted with an excess of HF acid to form an insoluble fluoride compound (salt) comprising REF.sub.3 and FeF.sub.3 present in solid solution in the REF.sub.3 crystal lattice. The REF.sub.3 /FeF.sub.3 compound is dried to render it usable as a reactant in the thermite reduction process as well as other processes which require an REF.sub.3 /FeF.sub.3 mixture. The dried REF.sub.3 /FeF.sub.3 compound comprises about 5 weight % to about 40 weight % of FeF.sub.3 and the balance REF.sub.3 to this end.
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公开(公告)号：US20120315182A1
公开(公告)日：2012-12-13
申请号：US13506434
申请日：2012-04-18
申请人： Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
发明人： Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
CPC分类号： C22C28/00 , B22F9/20 , C22C1/0491 , C22C27/04 , H01F1/015
摘要： A method for preparing R5X4 alloy materials where R is a rare earth element selected from one or more of La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Sc, and Y and X represents a non-rare earth alloying element such as silicon, germanium, tin, lead, gallium, indium and mixtures thereof. The method involves carbothermically reducing amounts of a rare earth element-containing oxide, an alloying element-containing oxide and/or alloying element in elemental or alloy form, and carbon at elevated temperature to form an R5X4 alloy material, which is melted, solidified, and optionally heat treated. Such a method provides an economical and efficient technique of configuring magnetic refrigerant, magnetostrictive and magnetoresistive alloys and products.
摘要翻译： 一种制备R5X4合金材料的方法，其中R是选自La，Ce，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Lu，Sc和Y中的一种或多种的稀土元素，X和X表示 非稀土合金元素如硅，锗，锡，铅，镓，铟及其混合物。 该方法包括在元素或合金形式的碳纳米管中减少含稀土元素的氧化物，含合金元素的氧化物和/或合金元素的量，并在升高的温度下形成碳，以形成熔融固化的R 5 X 4合金材料， 并任选地进行热处理。 这种方法提供了一种经济有效的配置磁性制冷剂，磁致伸缩和磁阻合金和产品的技术。
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6.发明授权Method for producing La/Ce/MM/Y base alloys, resulting alloys and battery electrodes 有权生产La / Ce / MM / Y基合金，合金和电池电极的方法公开(公告)号：US09525176B2
公开(公告)日：2016-12-20
申请号：US13694846
申请日：2013-01-10
CPC分类号： C22C1/06 , C22C1/00 , C22C28/00 , C22C30/00 , H01M4/242 , H01M4/383 , H01M4/385 , H01M4/58 , H01M4/662 , H01M10/30 , H01M10/345 , Y02E60/124 , Y02P70/54
摘要： A carbothermic reduction method is provided for reducing a La-, Ce-, MM-, and/or Y-containing oxide in the presence of carbon and a source of a reactant element comprising Si, Ge, Sn, Pb, As, Sb, Bi, and/or P to form an intermediate alloy material including a majority of La, Ce, MM, and/or Y and a minor amount of the reactant element. The intermediate material is useful as a master alloy for in making negative electrode materials for a metal hydride battery, as hydrogen storage alloys, as master alloy additive for addition to a melt of commercial Mg and Al alloys, steels, cast irons, and superalloys; or in reducing Sm2O3 to Sm metal for use in Sm—Co permanent magnets.
摘要翻译： 提供了一种碳热还原法，用于在碳的存在下还原含有La，Ce，MM和/或Y的氧化物，以及包含Si，Ge，Sn，Pb，As，Sb， Bi和/或P形成包含大部分La，Ce，MM和/或Y的中间合金材料和少量的反应物元素。 中间材料可用作制备用于金属氢化物电池的负极材料的母合金，作为储氢合金作为用于添加到商业Mg和Al合金，钢，铸铁和超级合金的熔体的母合金添加剂; 或将Sm2O3还原成Sm金属，用于Sm-Co永久磁铁。
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公开(公告)号：US4600448A
公开(公告)日：1986-07-15
申请号：US636430
申请日：1984-07-31
IPC分类号： C22C9/00
CPC分类号： C22C9/00
摘要： A tantalum-copper alloy can be made by preparing a consumable electrode consisting of an elongated copper billet containing at least two spaced apart tantalum rods extending longitudinally the length of the billet. The electrode is placed in a dc arc furnace and melted under conditions which co-melt the copper and tantalum to form the alloy.
摘要翻译： 钽铜合金可以通过制备一个消耗性电极制成，该消耗电极由细长的铜坯组成，该细长的铜坯包含沿坯料的长度纵向延伸的至少两个间隔开的钽棒。 将电极放置在直流电弧炉中并在共熔融铜和钽以形成合金的条件下熔化。
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8.发明申请公开(公告)号：US20120282130A1
公开(公告)日：2012-11-08
申请号：US13506427
申请日：2012-04-18
CPC分类号： C22C28/00 , B22F9/20 , C22C2202/02 , H01F1/0577 , H01F1/0578 , H01F1/058
摘要： A carbothermic reduction method is provided for reducing a rare earth element-containing oxide including at least one of neodymium (Nd) and praseodymium (Pr) and possibly other rare earth elements (La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, and Y) as alloying agents in the presence of carbon and a source of a reactant element including one or more of silicon, germanium, tin, lead, arsenic, antimony and bismuth to form a rare earth element-containing intermediate alloy as a master alloy for making permanent magnet material. The process is a more efficient, lower cost and environmentally friendly technology than current methods of manufacturing rare earth metals. The intermediate material is useful as a master alloy for making a permanent magnet material comprising at least one of neodymium and praseodymium, and possibly other rare earth metals as alloying additives.
摘要翻译： 提供碳热还原法，用于还原含有钕（Nd）和镨（Pr）和可能的其它稀土元素（La，Ce，Sm，Eu，Gd，Tb，Dy等）中的至少一种的含稀土元素的氧化物， Ho，Er，Tm，Yb，Lu，Sc和Y）作为合金剂，在碳和来自包含一种或多种硅，锗，锡，铅，砷，锑和铋的反应物元素的存在下形成 含稀土元素的中间合金作为制造永磁材料的母合金。 该工艺比现有的稀土金属制造方法更有效率，更低成本和环保的技术。 中间材料可用作制造包含钕和镨中的至少一种的永磁体材料的母合金，以及可能的其它稀土金属作为合金添加剂。
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公开(公告)号：US4832738A
公开(公告)日：1989-05-23
申请号：US093920
申请日：1987-09-08
摘要： Molybdenum-copper and tungsten-copper alloys are prepared by a consumable electrode method in which the electrode consists of a copper matrix with embedded strips of refractory molybdenum or tungsten. The electrode is progressively melted at its lower end with a superatmospheric inert gas pressure maintained around the liquifying electrode. The inert gas pressure is sufficiently above the vapor pressure of copper at the liquidus temperature of the alloy being formed to suppress boiling of liquid copper.
摘要翻译： 钼铜和钨铜合金通过消耗电极法制备，其中电极由具有嵌入的难熔钼或钨的条带的铜基体组成。 电极在其下端逐渐熔化，其中保持在液化电极周围的超大气惰性气体压力。 在形成的合金的液相线温度下，惰性气体压力足够高于铜的蒸气压，以抑制液体铜的沸腾。
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公开(公告)号：US4953159A
公开(公告)日：1990-08-28
申请号：US293028
申请日：1989-01-03
CPC分类号： H04M3/567 , H04L12/1813 , H04M3/563 , Y10S379/908
摘要： An audiographics conferencing arrangement for use in a business communication system allows the conferees to exchange displayed text and/or graphics stored locally in their respective data terminals. The conferees may change the displayed text and/or graphics and such changes are automatically distributed to the other data terminals so that all of the conferees view the same information. Moreover, a data terminal and its associated telephone station set may be included in an audiographics conference connection even though they are not directly served by the business communication system. In addition, one of the conferees may establish concurrent with the original audiographics conference connection a second audiographics conference connection with one or more other data terminals and transfer information obtained from one conference connection to the other conference connection.
摘要翻译： 在商业通信系统中使用的音频会议装置允许与会者交换在其各自的数据终端中本地存储的显示的文本和/或图形。 与会者可以改变所显示的文本和/或图形，并且这些改变被自动分配给其他数据终端，以便所有与会人员查看相同的信息。 此外，数据终端及其相关联的电话机组可以被包括在音频会议连接中，即使它们不是由业务通信系统直接服务的。 此外，与会者之一可以与原始音频会议连接同时建立与一个或多个其他数据终端的第二音频会议连接以及从一个会议连接获得的传送信息到另一个会议连接。
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