发明名称 |
Methods of producing steel sheet, hot-dip steel and alloyed hot-dip steel sheet |
摘要 |
This invention can form a sufficiently internal oxide layer in a surface layer portion of an iron matrix of a steel sheet by hot rolling a base steel and subjecting to a heat treatment at a temperature range of 650-950° C. in an atmosphere substantially not causing reduction while being adhered with a black skin scale irrespectively of a chemical steel composition or production history, or even when a radiation type heating of a radial tube or the like is used in a recrystallization annealing before a hot dipping treatment, and hence excellent hot-dipping property and conversion treating property can be given to a steel sheet for hot dipping.
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申请公布号 |
US6398884(B1) |
申请公布日期 |
2002.06.04 |
申请号 |
US20000673626 |
申请日期 |
2000.10.19 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
KYONO KAZUAKI;UMINO SHIGERU;TOSAKA AKIO;NISHIMURA KEIJI;HAYASHI HIROMASA |
分类号 |
C21D8/04;C22C38/00;C22C38/02;C22C38/04;C22C38/12;C22C38/14;C23C2/02;(IPC1-7):C21D8/02 |
主分类号 |
C21D8/04 |
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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