发明名称 |
High-tension steel sheet with alloyed deposit formed by hot-dip galvanization and having excellent adhesion, and process for producing same |
摘要 |
<p>A high-tension steel sheet with an alloyed deposit formed by hot-dip galvanization and having satisfactory adhesion is provided in which the alloyed deposit formed by hot-dip galvanization does not peel off the base steel sheet even when the galvanized high-tension steel sheet is subjected to processing accompanied by sliding. Also provided is a process for producing the galvanized high-tension steel sheet. The high-tension steel sheet with an alloyed deposit formed by hot-dip galvanization comprises a base steel sheet and, formed on the surface thereof, an alloyed deposit formed by hot-dip galvanization, wherein the base steel sheet contains Si in an amount of 0.04-2.5%. When the alloyed deposit formed by hot-dip galvanization is removed by dissolution with an acid and a plurality of areas in the exposed surface of the base steel sheet are examined for surface roughness with a laser microscope, then 60% or more of all the examined areas each have an arithmetic mean slope (R a) of 23.0ºor above and a root mean square slope (R q) of 29.0º or above.</p> |
申请公布号 |
GB2505348(A) |
申请公布日期 |
2014.02.26 |
申请号 |
GB20130019541 |
申请日期 |
2011.04.20 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD) |
发明人 |
MINORU CHIDA;HIROSHI IRIE |
分类号 |
C23C2/06;C23C2/26;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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