Affecting Factors on Gloss Value for Galvanized Cold Rolled Sheets
Özgür KARAKAŞ Erdogan KANCA İbrahim GÖÇER Alper AKÜN Erkan PÜGE Güzin Müge LÜLE Ali DOĞAN Ahmet ÖZDEMİR
AbstractFlat steel products are coated with zinc to ensure decorative requirements and prevent the steel from corrosion. Galvanized cold rolled (GCR) sheets has three main characteristics for decorative requirements, these are metallic effect, spangle and gloss. High gloss value is one of effective parameter on the customer demand. In order to define influencing factors on gloss value, GCR sheet samples, with different dimensions and produced with different parameters, had been taken. Influencing factors such as zinc coating mass, sheet thickness, chemical composition of zinc coating, line speed were investigated under constant zinc pot metallurgy conditions. This study finds out increase in strip thickness and Al% content of zinc coating leads to increase in gloss value, increase in coating mass leads to decrease in gloss value and gloss-line speed data gives a Gaussian curve where the gloss value reaches a maximum magnitude at about 100 m/min.