发明名称 Process for producing coated, high-strength, low-alloy steel
摘要 The invention relates to a process for producing coated, high-strength, low-alloy steel. A steel strip is cleaned by removing rolling oil, heated in a blanketing gas atmosphere to a temperature range A1 to A3, annealed and then quenched in a zinc/aluminium bath for a short time which is sufficient for a zinc layer to remain adhering to the steel surface. The steel strip is then rapidly cooled to a temperature below 300 DEG C in order to obtain a two-phase steel structure.
申请公布号 DE3231981(A1) 申请公布日期 1984.03.01
申请号 DE19823231981 申请日期 1982.08.27
申请人 RA-SHIPPING LTD. OY 发明人 JUHANI SIPPOLA,PERTTI
分类号 C21D1/18;C21D9/52;C21D9/573;C23C2/06;(IPC1-7):C21D1/64;C23C1/02 主分类号 C21D1/18
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