发明名称 |
METHOD FOR IMPROVING A METAL COATING ON A STEEL STRIP |
摘要 |
The invention relates to a method for improving a metal coating on a steel strip (1) or a steel sheet or plate, wherein the coating is melted to a maximum temperature (PMT) above the melting temperature (TS) of the material of the coating by inductive heating performed by means of at least one induction coil (2) and subsequently cooled to a quenching temperature (TA), lying below the melting temperature, in a cooling device (3). In order to improve the corrosion stability of the coating treated according to the invention, even in the case of thin coating layers, it is provided according to the invention that the coating is kept at a temperature above the melting temperature (TS) during a holding time (th) and that the holding time (th) is adapted to the maximum temperature (PMT) and the thickness of the coating by moving at least one of the induction coils (2) with respect to the cooling device (3), in order to melt the coating completely over its entire thickness to the boundary layer with the steel strip. |
申请公布号 |
CA2858292(C) |
申请公布日期 |
2016.09.20 |
申请号 |
CA20132858292 |
申请日期 |
2013.01.22 |
申请人 |
THYSSENKRUPP RASSELSTEIN GMBH |
发明人 |
MATUSCH, DIRK;SAUER, REINER;OBERHOFFER, HELMUT;THOMAS, RAINER;OPPER, MARKUS |
分类号 |
C21D9/60;C23C2/28;H05B6/40 |
主分类号 |
C21D9/60 |
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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