发明授权
- 专利标题： Method of manufacturing heat resisting magnetic scale
- 专利标题（中）： 制造耐热磁铁的方法
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申请号： US237384申请日： 1988-08-29
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公开(公告)号： US4935070A公开(公告)日： 1990-06-19
- 发明人: Katsuyuki Ara , Hideyuki Yagi , Hideo Imeda , Toshitsugu Ohmura , Megumi Ohmine , Masaharu Moriyasu
- 申请人： Katsuyuki Ara , Hideyuki Yagi , Hideo Imeda , Toshitsugu Ohmura , Megumi Ohmine , Masaharu Moriyasu
- 申请人地址： JPX both of JPX both of
- 专利权人： Japan Atomic Energy Research Institute,Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Japan Atomic Energy Research Institute,Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX both of JPX both of
- 优先权： JPX62-217315 19870831; JPX62-217316 19870831; JPX62-335888 19871229
- 主分类号： G01V15/00
- IPC分类号： G01V15/00
摘要：
A method of manufacturing a heat resisting magnetic scale is disclosed which comprises a manufacturing process in which at least a part of a heat resisting base is heated and a manufacturing process in which the part which has been heated is immediately cooled down for the purpose of changing the magnetic characteristics of the part of the base which has been heated and the Curie point of the part which has been heated is raised to 100.degree. C. or higher.A heating resisting magnetic scale which cannot be demagnetized at high temperatures and cannot be separated even if it is subjected to rapid change in temperatures, and which exhibits excellent stability and measuring precision.
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