
基本信息:
- 专利标题: 方向性电磁钢板及其制造方法
- 专利标题(英):Orientated electromagnetic steel sheet and manufacturing method for same
- 申请号:CN201080068289.0 申请日:2010-07-28
- 公开(公告)号:CN103052723A 公开(公告)日:2013-04-17
- 发明人: 坂井辰彦 , 平野弘二 , 新井聪 , 牛神义行
- 申请人: 新日铁住金株式会社
- 申请人地址: 日本东京
- 专利权人: 新日铁住金株式会社
- 当前专利权人: 日本制铁株式会社
- 当前专利权人地址: 日本东京
- 代理机构: 永新专利商标代理有限公司
- 代理人: 陈建全
- 国际申请: PCT/JP2010/062679 2010.07.28
- 国际公布: WO2012/014290 JA 2012.02.02
- 进入国家日期: 2013-01-28
- 主分类号: C21D9/46
- IPC分类号: C21D9/46 ; C21D8/12 ; C22C38/00 ; H01F1/16
Cold roll a silicon steel sheet (1) containing Si. Then, bring about primary re-crystallisation by decarburisation annealing (3) the silicon steel sheet (1). Then, roll up the silicon steel sheet (1) and obtain a steel sheet coil (31). Then, bring about secondary re-crystallisation by annealing (6) the steel sheet coil (31) by means of batch processing. Then, unroll and flatten the steel sheet coil (31). In between the step wherein cold rolling is carried out and the step wherein the steel sheet coil (31) is obtained, irradiate (2) a laser beam, a plurality of times and at prescribed intervals, on the surface of the silicon steel sheet (1) from one end to the other end thereof in the sheet width direction. When the secondary re-crystallisation is brought about, crystal grain boundaries are generated which pass through the front and rear of the silicon steel sheet (1) along the trajectory of the laser beam.
公开/授权文献:
- CN103052723B 方向性电磁钢板及其制造方法 公开/授权日:2014-09-24
IPC结构图谱:
C | 化学;冶金 |
--C21 | 铁的冶金 |
----C21D | 改变黑色金属的物理结构;黑色或有色金属或合金热处理用的一般设备;通过脱碳、回火或其他处理使金属具有韧性 |
------C21D9/00 | 热处理,例如适合于特殊产品的退火、硬化、淬火、回火;所用的炉子 |
--------C21D9/46 | .用于金属薄板 |