发明授权
US07471182B2 Core having superior end face insulation and method of treating core end faces to give insulation coating
有权
具有优异的端面绝缘的芯和处理芯端面以提供绝缘涂层的方法
- 专利标题： Core having superior end face insulation and method of treating core end faces to give insulation coating
- 专利标题（中）： 具有优异的端面绝缘的芯和处理芯端面以提供绝缘涂层的方法
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申请号： US11652893申请日： 2007-01-12
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公开(公告)号： US07471182B2公开(公告)日： 2008-12-30
- 发明人: Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
- 申请人： Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
- 申请人地址： JP Tokyo JP Fukuoka
- 专利权人： Nippon Steel Corporation,Nittetsu Plant Designing Corporation
- 当前专利权人： Nippon Steel Corporation,Nittetsu Plant Designing Corporation
- 当前专利权人地址： JP Tokyo JP Fukuoka
- 代理机构： Kenyon & Kenyon LLP
- 优先权： JP2001-310379 20011005; JP2002-077613 20020320; JP2002-215387 20020724; JP2002-216949 20020725; JP2002-222759 20020731; JP2002-242967 20020823; JP2002-277578 20020924
- 主分类号： H01F27/24
- IPC分类号： H01F27/24
摘要：
A means for treating the end faces of a core which is used for an electrical apparatuses and etc., to give insulation extremely superior in effect of improvement of the insulation, corrosion resistance, adhesiveness, heat resistance, and magnetic properties at a low temperature in a short time without cleaning for removing punching oil, annealing, or other pre-treatment; a core having an insulation coating comprised of a dry film of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as a silicone compound on the core end faces and having an average film thickness of at least 0.5 μm, a breakdown voltage of at least 30V, and a heat resistance in the air of at least 400° C.; and a method of production comprised of forming a core, then dipping it in or spraying it by one or more types of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as an insulation coating.