Study of the Technology Preventing the deformation area of the Hot -Dip Zn -Al Galvanizing steel Blackening

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Dong, X.Q.^1 ; Guo, T.X.^1

PanGang Group Research Institute Co. Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Sichuan, Panzhihua

617000, China^1

关键词: Deep drawing steel;    Deformation areas;    Drawing process;    Effective measures;    Friction factors;    Passive films;    Self lubrication;    Self-lubricating;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/2/022093/pdf
DOI  :  10.1088/1757-899X/382/2/022093

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to prevent the deformation area of the hot -dip Zn -Al Galvanizing extra deep drawing steel blackening during the drawing process, the microstructure and composition of the blackening area was researched by SEM and EDS. The blackening during the drawing process was caused by Zn -Al coating corrosion after the damage of passive film. And the effective measures that the surface passive film on Zn -Al coating had self-lubrication and the friction factor of the surface below 0.2 to prevent the blackened was determined. Then a self-lubricating hot -dip Zn -Al Galvanizing extra deep drawing steel was developed. After the application of Technology about the self-lubricating hot -dip Zn -Al Galvanizing, the blackening did not appear again.