发明名称 |
HIGH-STRENGTH HOT-DIP GALVANIZED STEEL PLATE AND METHOD FOR PRODUCING SAME |
摘要 |
Provided is a method for producing a high-strength hot-dip galvanized steel plate having a galvanized layer formed on the surfaces of a steel plate containing, in terms of mass%, C (0.01 to 0.18%), Si (0.02 to 2.0%), Mn (1.0 to 3.0%), Al (0.001 to 1.0%), P (0.005 to 0.060%), S (0.01% or less), and Fe and unavoidable impurities as the remainder such that the amount of adhesion of zinc per surface is from 20 to 120 g/m2, wherein, when the steel plate is subjected to annealing and hot-dip galvanizing treatments in continuous hot-dip galvanizing equipment, the temperature in an annealing furnace in a range of 750°C or higher is regulated such that the dew point of the atmosphere is -40°C or lower. According to this production method, a high-strength hot-dip galvanized steel plate having excellent corrosion resistance and also excellent resistance to galvanized coat peeling when subjected to a high degree of processing is obtained. |
申请公布号 |
WO2010114174(A1) |
申请公布日期 |
2010.10.07 |
申请号 |
WO2010JP56287 |
申请日期 |
2010.03.31 |
申请人 |
JFE STEEL CORPORATION;FUSHIWAKI, YUSUKE;SUGIMOTO, YOSHIHARU;YOSHIDA, MASAHIRO;SUZUKI, YOSHITSUGU |
发明人 |
FUSHIWAKI, YUSUKE;SUGIMOTO, YOSHIHARU;YOSHIDA, MASAHIRO;SUZUKI, YOSHITSUGU |
分类号 |
C23C2/02;C21D1/74;C21D9/46;C22C18/00;C22C38/00;C22C38/06;C22C38/58;C23C2/06;C23C2/28 |
主分类号 |
C23C2/02 |
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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