52073

Wrinkle defect in galvanized steel sheet

May 12, 2009

Dear All ;

I am an metallurgical and materials engineer and working in sheet steel factory in Turkey.
As shown in the picture ; there is a wrinkle defect (mark) in our galvanized sheet steels and we do not know the root reason of this problem.

We have a continuous galvanizing lines and we could not find any problem about process parameters (tensions, atmosphere and furnace temperatures are normal). Could you have any idea about this surface problem.

Regard

Turgut Kirma
engineer - Bursa, Turkey