Study and control of white bar defects in hot-dip galvanized coating
The formation mechanism, influencing factors, and control measures of white bar defects in hot-dip galvanized products were studied. The results indicate that the white bar defect is formed by the adhesion of zinc ash inside the furnace nose to the surface of the steel strip, and its components are Zn and ZnO. The main factors affecting the white bar defect are sealing of the furnace nose, dew point, temperature of the steel strip entering the zinc pot, zinc pot temperature, and zinc ash removal effect. By controlling and optimizing the above factors, the white bar defect can be effectively eliminated to meet the surface quality requirements of steel for household appliances.
hot dip galvanizingfurnace nosewhite bar defectzinc ashdew pointtemperature
万方数据
维普
