发明申请
US20120125491A1 Method for the Hot-Dip Coating of a Flat Steel Product Containing 2 - 35 wt.% of Mn, and a Flat Steel Product
有权
含有2-35重量％的Mn和扁钢产品的扁钢产品的热浸涂覆方法
- 专利标题： Method for the Hot-Dip Coating of a Flat Steel Product Containing 2 - 35 wt.% of Mn, and a Flat Steel Product
- 专利标题（中）： 含有2-35重量％的Mn和扁钢产品的扁钢产品的热浸涂覆方法
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申请号： US13265573申请日： 2010-04-22
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公开(公告)号： US20120125491A1公开(公告)日： 2012-05-24
- 发明人: Manfred Meurer , Martin Norden , Wilhelm Warnecke , Marc Blumenau , Matthias Dahlem , Jennifer Schulz , Klaus Josef Peters
- 申请人： Manfred Meurer , Martin Norden , Wilhelm Warnecke , Marc Blumenau , Matthias Dahlem , Jennifer Schulz , Klaus Josef Peters
- 申请人地址： DE Duisburg
- 专利权人： THYSSENKRUPP STEEL EUROPE AG
- 当前专利权人： THYSSENKRUPP STEEL EUROPE AG
- 当前专利权人地址： DE Duisburg
- 优先权： DE102009018577.1 20090423
- 国际申请： PCT/EP10/55334 WO 20100422
- 主分类号： C23C2/02
- IPC分类号： C23C2/02 ; C21D6/00
摘要：
A method by which a flat steel product containing 2-35 wt. % of Mn can be provided with a coating of Zn which adheres well by annealing at an annealing temperature Ta of 600-1100° C. for an annealing time of 10-240 s under an annealing atmosphere which has a reducing effect on the FeO present on the flat steel product and an oxidising effect on the Mn contained in the steel substrate thereby forming a layer of Mn mixed oxide which covers the flat steel product at least in sections and then cooling the flat steel product to a temperature for bath entry and conveying it through a bath of molten Zn saturated within iron at a temperature of 420-520° C., within a dip time of 0.1-10 s.