发明名称 |
ALLOYED ZINC-PLATED STEEL SHEET HAVING EXCELLENT ANTI-POWDERING PROPERTIES |
摘要 |
Provided is a galvannealed steel sheet with excellent anti-powdering property when press forming is performed, without controlling the contents of chemical elements in steel which are effective for strengthening a steel sheet, such as Si and P, to be low in order to achieve required material properties and without increasing cost due to, for example, processes being complicated. A galvannealed steel sheet with excellent anti-powdering property has a coated layer taking in grains of a base steel sheet such that the grains constitute 2.0% or more and 15.0% or less of the coated layer in terms of cross section area ratio. |
申请公布号 |
EP2865780(A1) |
申请公布日期 |
2015.04.29 |
申请号 |
EP20130809989 |
申请日期 |
2013.06.18 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
MAKIMIZU, YOICHI;SUZUKI, YOSHITSUGU;NAGANO, HIDEKI;NAGATAKI, YASUNOBU |
分类号 |
C23C2/06;B32B15/01;C21D1/26;C21D8/04;C21D9/46;C21D9/48;C22C18/00;C22C38/00;C22C38/02;C22C38/04;C22C38/38;C22C38/58;C23C2/28 |
主分类号 |
C23C2/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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