基本信息:
- 专利标题: 방향성 전자강판의 제조방법
- 专利标题(英):Process for producing grain-oriented magnetic steel sheet
- 专利标题(中):生产面向磁性钢板的工艺
- 申请号:KR1020127022996 申请日:2011-02-22
- 公开(公告)号:KR1020120118494A 公开(公告)日:2012-10-26
- 发明人: 오무라타케시 , 하야카와야스유키
- 申请人: 제이에프이 스틸 가부시키가이샤
- 申请人地址: Hibiya-kokusai building, *-*-* Uchisaiwaicho, Chiyoda-ku, Tokyo, JAPAN
- 专利权人: 제이에프이 스틸 가부시키가이샤
- 当前专利权人: 제이에프이 스틸 가부시키가이샤
- 当前专利权人地址: Hibiya-kokusai building, *-*-* Uchisaiwaicho, Chiyoda-ku, Tokyo, JAPAN
- 代理人: 특허법인원전
- 优先权: JPJP-P-2010-039389 2010-02-24
- 国际申请: PCT/JP2011/000989 2011-02-22
- 国际公布: WO2011105054 2011-09-01
- 主分类号: C21D8/12
- IPC分类号: C21D8/12 ; C22C38/00 ; C22C38/60 ; H01F1/16
In the method for producing a grain-oriented electrical steel sheet according to the material of the inhibitor-free system, in the case of performing the primary recrystallization annealing including a rapid heat treatment, we propose how to obtain the iron loss reducing effect due to the rapid heat treatment in a stable manner. Inhibitor a component of Al subjected to 100ppm or less, N, S and Se, a cold rolling two or more times to put between a steel-rolling the slabs hot, and the one time of cold rolling or intermediate annealing reduced to less than 50ppm each of the final sheet thickness and thereafter, subjected to primary recrystallization annealing, in the production process of the grain-oriented electrical steel sheet for performing secondary recrystallization annealing after the primary recrystallization annealing is heated to more than 700 ℃ temperature region at a temperature rising rate of at least 150 ℃ / s and thereafter, once after cooling to a temperature range of less than 700 ℃, the following gayeoldae, the average rate of temperature increase is heated to a cracking temperature conditions to less than 40 ℃ / s.
公开/授权文献:
- KR101445467B1 방향성 전자강판의 제조방법 公开/授权日:2014-09-26
信息查询:
EspacenetIPC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 |
------C21D7/00 | 通过变形改变铁或钢的物理性能 |
--------C21D8/12 | .在生产具有特殊电磁性能的产品时 |