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1. 发明授权

US5733384A Process for producing hard-magnetic parts 失效
标题翻译：硬磁部件生产工艺
公开(公告)号：US5733384A
公开(公告)日：1998-03-31
申请号：US793156
申请日：1997-02-11
申请人： Lei Cao , Axel Handstein , Karl-Hartmut Mueller , Ludwig Schultz , Volker Neu
发明人： Lei Cao , Axel Handstein , Karl-Hartmut Mueller , Ludwig Schultz , Volker Neu
IPC分类号： B22F9/04 , C22C1/04 , C22C38/00 , H01F1/053 , H01F1/058
CPC分类号： H01F1/058 , C22C1/0441
摘要： A process is provided for a technologically controllable, economic production of hard-magnetic parts from Sm.sub.2 --(Fe,M).sub.17 --C.sub.y -base work materials with interstitial inclusions, where M designates gallium and/or at least one metallic element serving to stabilize a rhombohedral 2:17 structure. A Sm.sub.2 Fe.sub.17-x M.sub.x C.sub.y powder mixture is produced, where x>0.1 and 3.gtoreq.y.gtoreq.0. The mixture is subjected to an intensive fine grinding process in a ball mill. The finely ground mixture is heat-treated in a temperature range from 650.degree. C. to 900.degree. C. for partial or complete recrystallization. The resulting ultra-fine-grain Sm.sub.2 Fe.sub.17-x M.sub.x C.sub.y magnetic powder is compacted to produce magnet bodies by a hot pressing processing in a temperature range from 650.degree. C. to 900.degree. C. The process is applicable, for example, for the production of hard-magnetic parts based on interstitial Sm.sub.2 Fe.sub.17 C.sub.y compounds.
摘要翻译： PCT No.PCT / EP96 / 02379第 371日期1997年2月11日 102（e）日期1997年2月11日PCT Filed 1996年6月1日PCT公布。出版物WO97 / 00524 日期1997年1月3日提供了一种用于具有间隙夹杂物的Sm 2（Fe，M）17-Cy基础工作材料的技术可控，经济地生产硬磁性部件的方法，其中M表示镓和/或至少一种用于稳定菱形2:17结构的金属元素。产生Sm2Fe17-xMxCy粉末混合物，其中x> 0.1和3> / = y> / = 0。混合物在球磨机中进行精细的细磨加工。将精细研磨的混合物在650℃至900℃的温度范围内进行热处理，以进行部分或完全重结晶。通过在650℃〜900℃的温度范围内的热压加工，将得到的超细晶粒Sm2Fe17-xMxCy磁性粉末压实，制成磁体。该方法适用于例如生产硬质基于间隙Sm2Fe17Cy化合物的磁性部件。

2. 发明授权

US06352597B1 Method for producing a magnetic alloy powder 失效
标题翻译：磁性合金粉末的制造方法
公开(公告)号：US06352597B1
公开(公告)日：2002-03-05
申请号：US09554841
申请日：2000-07-14
申请人： Oliver Gutfleisch , Michael Kubis , Axel Handstein , Bernhard Gebel , Karl-Hartmut Mueller , Ivor Harris , Ludwig Schultz
发明人： Oliver Gutfleisch , Michael Kubis , Axel Handstein , Bernhard Gebel , Karl-Hartmut Mueller , Ivor Harris , Ludwig Schultz
IPC分类号： H01F106
CPC分类号： H01F1/0553 , B22F9/023 , B22F9/04 , B22F2999/00 , B22F2201/013 , B22F1/0085
摘要： A method is disclosed enabling a technologically controllable and economical production of a hard-magnetic powder composed of a samarium-cobalt base alloy for highly coercive permanent magnets. The method is based on a HDDR treatment in which a starting powder is subjected to hydrogenation with disproportionation of the alloy in a first method step under hydrogen and, in a subsequent, second method step under vacuum conditions, a hydrogen desorption with recombination of the alloy. A starting powder containing samarium and cobalt is treated in the first method step either at a high temperature in the range of 500° C. to 900° C. and with a high hydrogen pressure of >0.5 MPa or by applying an intensive fine grinding at a low temperature in the range of 50° C. to 500° C. and with a hydrogen pressure of >0.15 MPa. By means of the method of the invention, magnetic alloy powders can be produced from samarium-cobalt base alloys; highly coercive permanent magnets can be produced from these magnetic alloy powders, particularly by hot compacting or plastic bonding.
摘要翻译：公开了一种能够技术上可控和经济地生产由用于高矫顽永磁体的钐 - 钴基合金组成的硬磁粉末的方法。该方法基于HDDR处理，其中起始粉末在第一方法步骤中在氢气下以合金的歧化进行氢化，并且在随后的第二方法步骤中，在真空条件下，通过合金的复合氢解吸。在第一方法步骤中，在500℃至900℃的高温和> 0.5MPa的高氢气压力下或通过在在50℃至500℃的范围内的低温和> 0.15MPa的氢气压力。通过本发明的方法，可以由钐钴基合金制备磁性合金粉末; 可以通过这些磁性合金粉末，特别是通过热压实或塑性粘合来制造高矫顽永久磁铁。

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