发明名称 |
Kornorientiertes Elektrostahlblech und Verfahren zu seiner Herstellung |
摘要 |
Similar linear or dotted line-like grooves and/or heat-affected layers that remain even after stress-relief annealing are formed on both surfaces of a grain-oriented electrical steel sheet (1) at the exact same positions or slight deviate positions by laser irradiation. Deviation of the formation positions on both surfaces is smaller than the width of the grooves and/or the heat-affected layers in a rolling direction, and the groove depth of the grooves on both surfaces is not greater than 5% of the sheet thickness. The steel sheet can be applied to both a wound core and a stacked core, and has excellent magnetic properties capable of reducing the load on production setups. <IMAGE> |
申请公布号 |
DE69923134(T2) |
申请公布日期 |
2005.12.29 |
申请号 |
DE1999623134T |
申请日期 |
1999.10.05 |
申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO |
发明人 |
SAKAI, TATSUHIKO;MINAMIDA, KATSUHIRO;SUGIYAMA, KIMIHIKO;MOGI, HISASHI;FUJIKURA, MASAHIRO |
分类号 |
B01D11/04;B23K26/08;C21D8/12;C21D9/46;C22B3/20;C22B3/38;C22C38/00;H01F1/16 |
主分类号 |
B01D11/04 |
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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