基本信息:
- 专利标题： 높은 전-자기 특성을 가진 방향성 ＳＩ 강의 제조 방법
- 专利标题（英）：A manufacturing method of oriented si steel with high electric-magnetic property
- 专利标题（中）：具有高电磁性能的定向钢的制造方法
- 申请号：KR1020107023644 申请日：2009-03-25
- 公开(公告)号：KR1020110000661A 公开(公告)日：2011-01-04
- 发明人： 양궈화 , 쑨환더 , 지야밍 , 리궈바오 , 헤이훙쉬
- 申请人： 바오샨 아이론 앤 스틸 유한공사
- 申请人地址： No. ***, Fujin Road, Baoshan District, Shanghai ******, China
- 专利权人： 바오샨 아이론 앤 스틸 유한공사
- 当前专利权人： 바오샨 아이론 앤 스틸 유한공사
- 当前专利权人地址： No. ***, Fujin Road, Baoshan District, Shanghai ******, China
- 代理人： 방해철; 김용인
- 优先权： CN2008100350796 2008-03-25
- 国际申请： PCT/CN2009/071003 2009-03-25
- 国际公布： WO2009117959 2009-10-01
- 主分类号： C21D8/12
- IPC分类号： C21D8/12 ; C22C38/16
The present invention relates to a method for producing a directional silicon steel (oriented-grain silicon) having high electromagnetic characteristics include the following steps: a step of melting the steel in converter or electric furnace; Comprising refining the molten steel in two stages; Step of continuously cast to obtain a slab; The step of hot-rolled; Comprising the first cold-rolling; The step of decarburization annealing; Step of secondary cold rolling; Applying an annealing separator based on MgO and annealing to a high temperature; Applying an insulation coating agent, and performing tension annealing correction (leveling tension annealing)). The slab includes the following as (weight%): C 0.020% ~ 0.050%; Si 2.6% ~ 3.6%; 0.015% ~ 0.025% S; Als 0.008% ~ 0.028%; 0.005% ~ 0.020% N; Mn 0.15% ~ 0.5%, Cu 0.3% ~ 1.2%, remainder Fe and unavoidable inclusions, 10≤Mn / S≤20 and Cu and / Mn≥2. The method can produce a directional Si steel with high magnetic induction intensity and low iron loss at low cost.
公开/授权文献:
- KR101252561B1 높은 전-자기 특성을 가진 방향성 ＳＩ 강의 제조 방법 公开/授权日：2013-04-08
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 |