Categories
Contact Us

Dalian Innovation Metal Co.,Ltd

Add: Room 2112-A, Yinzhou International Building, No.11 of Qiyi Street, Zhongshan District, Dalian City, China

Contact: Lotus Song

Tel: 86-411-86683369

Fax: 86-411-83673369

Mob: 86-13842640492

E-mail: info@dalianinnovationmetal.com

Service Hotline
86-411-86683369

Knowledge

Home > KnowledgeContent

2nd step of Cleaning steel to prepare for the hot-dip galvanized coating Pickling Next the steel is “pickled” in a dilute solution of either hydrochloric or sulfuric acid (Figure 4), which removes oxides and mill scale. Once all oxidation has been removed from the steel, it is again rinsed with water and sent to the final step of the surface preparation.

Dalian Innovation Metal Co.,Ltd | Updated: Jan 10, 2019

2nd step of Cleaning steel to prepare for the hot-dip galvanized coating

Pickling

Next the steel is “pickled” in a dilute solution of either hydrochloric or sulfuric acid (Figure 4), which removes oxides and mill scale. Once all oxidation has been removed from the steel, it is again rinsed with water and sent to the final step of the surface preparation.