公开(公告)号：US06309441B1

公开(公告)日：2001-10-30

申请号：US09284688

申请日：1999-04-16

申请人： Mark Gilbert Benz ,  Robert John Zabala ,  Vladimir Nikolayevich Radchenko ,  Anatoly Danilovich Riabtsev ,  Oleg Vladimirovich Tarlov

发明人： Mark Gilbert Benz ,  Robert John Zabala ,  Vladimir Nikolayevich Radchenko ,  Anatoly Danilovich Riabtsev ,  Oleg Vladimirovich Tarlov

IPC分类号： C22B5900

CPC分类号： H01F1/057 ,  C22B5/04 ,  C22B9/18 ,  C22B59/00 ,  H01F1/0553 ,  H01F1/0573

摘要： Rare earth alloy compositions, such as the neodymium iron boron (NdFeB) alloy are made by a Reduction-Melting process. The Reduction-Melting process comprises preparing a primary electrode containing at least one compound or metal to be reduced to form a refined metal or metal alloy ingot; placing the electrode in an electroslag refining furnace; passing a current through the electrode into a molten flux or slag to melt the electrode; reducing the metal or compound in the slag while forming an oxide by-product; collecting melted metal or metal alloy droplets falling through the slag; forming an ingot of the metal or metal alloy from the melted droplets; and collecting the solid oxide byproducts in the slag.

摘要翻译： 稀土合金组合物，例如钕铁硼（NdFeB）合金通过还原熔融法制备。 还原熔融方法包括制备含有至少一种待还原的化合物或金属的主电极以形成精炼的金属或金属合金锭; 将电极放置在电渣精炼炉中; 使电流通过电极进入熔融焊剂或熔渣以熔化电极; 在形成氧化物副产物的同时还原炉渣中的金属或化合物; 收集熔融的金属或金属合金液滴落入炉渣; 从熔融的液滴中形成金属或金属合金的锭; 并在炉渣中收集固体氧化物副产物。