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公开(公告)号：US4808224A
公开(公告)日：1989-02-28
申请号：US99321
申请日：1987-09-25
CPC分类号： H01F1/0572 , H01F41/026
摘要： A method of treating a preform consisting essentially FeNeB alloy particles to produce a magnet having superior magnetic properties, the steps:(a) removing O.sub.2 from the preform and applying an O.sub.2 resistant coating to the preform surface, or removing O.sub.2 and maintaining an O.sub.2 -free environment,(b) heating the coated preform to elevated temperature and in a non-oxidizing atmosphere, to facilitate subsequent bonding of the particles during their consolidation,(c) providing a consolidation zone containing a grain bed and transferring the heated and coated or uncoated preform to said zone to be embedded in the grain bed,(d) applying pressure to the grain bed sufficient to be transferred via the bed and to the heated preform, thereby to consolidate the preform.
摘要翻译： 一种处理基本上由FeNeB合金颗粒组成的预制件的方法，以产生具有优异磁性的磁体，步骤：（a）从预成型件中除去O 2并向预成型件表面施加耐氧化涂层，或者除去O 2并保持O 2 - （b）将涂覆的预制件加热到升高的温度和非氧化性气氛，以促进颗粒在其固结期间的随后结合，（c）提供含有谷床的固结区，并转移加热和涂覆的或 未涂覆的预成型体被嵌入在谷床内的所述区域，（d）向谷床施加足以通过床转移到加热的预制件上的压力，从而固化预成型件。
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公开(公告)号：US4667497A
公开(公告)日：1987-05-26
申请号：US785482
申请日：1985-10-08
申请人： Brian Oslin , Gunes M. Ecer
发明人： Brian Oslin , Gunes M. Ecer
CPC分类号： B30B5/02 , B21D22/10 , B22F3/15 , Y10T29/49805
摘要： A method of forming a deformable body to desired shape includes the steps(a) providing a bed of flowable particles within a contained zone,(b) relatively positioning said particles adjacent one side of said body,(c) and pressuring said bed to cause pressure transmission via said particles to said body, thereby to deform the body into desired shape.
摘要翻译： 将可变形体形成所需形状的方法包括步骤（a）在容纳区域内提供可流动颗粒床，（b）将所述颗粒相对定位在所述主体的一侧附近，（c）并且对所述床施加压力， 通过所述颗粒将压力传递到所述主体，从而使主体变形成所需的形状。
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公开(公告)号：US4869869A
公开(公告)日：1989-09-26
申请号：US249116
申请日：1988-09-26
CPC分类号： H01F41/026 , H01F1/0572
摘要： A method of treating a preform consisting essentially FeNeB alloy particles to produce a magnet having superior magnetic properties, the steps:(a) removing O.sub.2 from the preform and applying an O.sub.2 resistant coating to the preform surface, or removing O.sub.2 and maintaining an O.sub.2 -free environment,(b) heating the coated preform to elevated temperature and in a non-oxidizing atmosphere, to facilitate subsequent bonding of the particles during their consolidation,(c) providing a consolidation zone containing a grain bed and transferring the heated and coated or uncoated preform to said zone to be embedded in the grain bed,(d) applying pressure to the grain bed sufficient to be transferred via the bed and to the heated preform, thereby to consolidate the preform.
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