基本信息:
- 专利标题: 용융 Al-Zn 계 도금 강판
- 专利标题(英):Hot-dip al-zn plated steel sheet
- 专利标题(中):热镀铝合金钢板
- 申请号:KR1020117029569 申请日:2010-05-27
- 公开(公告)号:KR1020120025516A 公开(公告)日:2012-03-15
- 发明人: 오오이도시히코 , 나카마루히로키 , 오오츠카신지 , 마스오카히로유키 , 요시다마사히로
- 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-2009-129774 2009-05-29
- 国际申请: PCT/JP2010/059403 2010-05-27
- 国际公布: WO2010137736 2010-12-02
- 主分类号: C23C2/12
- IPC分类号: C23C2/12 ; C22C18/04 ; C22C21/10 ; C23C2/06
It provides excellent corrosion resistance the molten Al-Zn-based plated steel sheet. The Al content in the plating film 20? 95 is a mass%. Then, the Ca content in the plated film 0.01? A 10 mass%. Alternatively, the total content of Ca and Mg is 0.01? A 10 mass%. In addition, the plated film is not the top layer is composed of the alloy present at the interface of the steel sheet, it is Ca, or Ca and Mg is preferably mainly contained in the upper layer. In addition, it is preferable to have the intermetallic compound with Ca, or Ca and Mg, Zn, Al, 1 or two or more selected from Si. Thus, by containing Ca, or Ca and Mg in the plating film, and is contained in the corrosion product is generated in the portion of these elements abutting brings an effect of corrosion products is stable and delayed the progress of subsequent corrosion. And, it is resulting in improved corrosion resistance.