公开(公告)号：US11685984B2

公开(公告)日：2023-06-27

申请号：US17287532

申请日：2019-10-14

申请人： Cockerill Maintenance & Ingenierie S.A.

发明人： Michel Dubois ,  Giuseppe Callegari

IPC分类号： C23C2/14 ,  C23C2/20 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12

CPC分类号： C23C2/20 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/14

摘要： A method for controlling and optimizing a transverse uniformity of a coating thickness on at least one side of a running metal strip in an industrial galvanization installation, the coating being deposited by hot dip coating in a pot containing a liquid metal bath, includes at least the steps of: heating the strip substrate to a temperature higher than a pot temperature; passing the strip through the bath by wrapping the strip around at least a first deflector roll or sink roll followed by at least one second deflector roll, the second deflector roll improving a flatness of the strip; wiping excess coating thickness carried away by the strip on one or both sides of the strip by wiping nozzles blowing a gas on the strip at an exit of the liquid metal bath; and measuring an actual distance profile between the nozzles and the strip.