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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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