公开(公告)号：EP2893051A1

公开(公告)日：2015-07-15

申请号：EP13756105.6

申请日：2013-08-28

申请人： Voestalpine Stahl GmbH

发明人： RIENER, Christian K. ,  ANGELI, Gerhard ,  HOFER, Klaus ,  FISCHER, Wilhelm

IPC分类号： C23C2/06

CPC分类号： C23C2/06 ,  B32B15/013 ,  C22C18/00 ,  C22C18/04 ,  C23C2/26 ,  C23C2/40 ,  Y10T428/12799

摘要： The invention relates to a method for applying a protective coating (10) to a flat steel product (100), wherein the protective coating (10) is produced by guiding the flat steel product (100) having a strip entry temperature of 400 - 490 degrees Celsius through a molten zinc alloy bath. The molten zinc alloy bath (11) has a bath temperature of 400 - 480 degrees Celsius and contains an aluminum fraction and a magnesium fraction. In particular, the molten zinc alloy bath (11) has the following composition: - the aluminum fraction is in the range between 1.8 and 3.0 weight percent; - the magnesium fraction is in the range between 1.3 and 2.7 weight percent; - the aluminum fraction in weight percent is greater than the magnesium fraction in weight percent; - the ratio of the magnesium fraction in weight percent to the sum of the aluminum fraction in weight percent and the magnesium fraction in weight percent is in the range between 0.31 and 0.44; and - the remainder of the molten zinc alloy bath is zinc and unavoidable impurities.

公开(公告)号：EP2893051B1

公开(公告)日：2019-02-13

申请号：EP13756105.6

申请日：2013-08-28

申请人： Voestalpine Stahl GmbH

发明人： RIENER, Christian K. ,  ANGELI, Gerhard ,  HOFER, Klaus ,  FISCHER, Wilhelm

IPC分类号： C23C2/26 ,  C22C18/00 ,  C23C2/06 ,  B32B15/01 ,  C23C2/40 ,  C22C18/04