基本信息:
- 专利标题： Si 함유 냉연 강판의 제조 방법 및 장치
- 专利标题（英）：Method and device for producing si-containing cold rolled steel sheet
- 专利标题（中）：用于生产含SI的冷轧钢板的方法和装置
- 申请号：KR1020137025360 申请日：2012-03-26
- 公开(公告)号：KR1020130129297A 公开(公告)日：2013-11-27
- 发明人： 마츠시마도모히로 , 이노세마사오 , 나고시마사야스 , 마스오카히로유키 , 아이자와시게유키 , 노로히사토
- 申请人： 제이에프이 스틸 가부시키가이샤
- 申请人地址： *-*-* 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： *-*-* UCHISAIWAICHO, CHIYODA-KU, TOKYO, JAPAN
- 代理人： 특허법인코리아나
- 优先权： JPJP-P-2011-070793 2011-03-28; JPJP-P-2012-061063 2012-03-16
- 国际申请： PCT/JP2012/058776 2012-03-26
- 国际公布： WO2012133869 2012-10-04
- 主分类号： C23G1/08
- IPC分类号： C23G1/08 ; C21D9/46 ; C22C38/00 ; C22C38/02 ; C22C38/14
摘要：
This invention provides methods and apparatuses which can manufacture Si-containing cold rolled steel sheets exhibiting excellent chemical conversion properties even if a chemical conversion treatment solution is used at a lower temperature while minimally suppressing the generation of sludge as well as reducing running costs. The method includes steps of cold rolling a steel containing 0.5 to 3.0 mass % Si, continuously annealing the cold rolled steel sheet, pickling the surface of the continuously annealed cold rolled steel sheet, and repickling the surface of the pickled steel sheet with a non-oxidative acid. The repickling is performed such that a repickling solution is sampled continuously or periodically, an acid concentration in the sampled solution is measured, and the acid concentration in the repickling solution is regularly controlled within a prescribed concentration range.
公开/授权文献:
- KR101516516B1 Si 함유 냉연 강판의 제조 방법 및 장치 公开/授权日：2015-05-04