Hot dip galvanized process flow: finished Pickling - washing - plating solution - drying - plating - cooling - Medicine - Cleaning - polishing - hot dip galvanized finish.

This paper deals with the role of Ni in coating forming and the effect of Ni on process and property when adding Ni to hot dip Zn bath.

The paper mainly focus on the development of hot dip aluminized coating, and analyzes the composing mechanism of plating process and its microstructure.