发明名称 PRODUCTION OF R-FE-B PERMANENT MAGNET CAST SLAB
摘要 PURPOSE: To provide the production method of R-Fe-B permanent magnet cast slab having excellent and stable magnet property of coercive force, etc., by which problem of molten metal/single roll in horizontally pouring method is solved and deterioration of corrosion resistance of R-Fe-B permanent magnet is prevented or grain structure is stably micronized. CONSTITUTION: By eliminating a cushion material between a nozzle 4 and roll 5 and specifying/optimizing the clearance length between the nozzle 4 and roll 5 and the position relationship between the nozzle 4 and roll 5, the deterioration of corrosion resistance of R-Fe-B permanent magnet is prevented and the grain structure is stably refined, the R-Fe-B permanent magnet having excellent and stable magnet property is obtained.
申请公布号 JPH08229641(A) 申请公布日期 1996.09.10
申请号 JP19950062087 申请日期 1995.02.23
申请人 SUMITOMO SPECIAL METALS CO LTD 发明人 TOKUHARA HIROKI;ISHIGAKI NAOYUKI;YAMADA MICHIO;UEDA MASAMI;KOJIMA TAKASHI;WATANABE YUKIYOSHI
分类号 C22C33/04;B22D11/06;C22C38/00;H01F1/053;H01F1/057 主分类号 C22C33/04
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