1.1Principle of galvanizing anticorrosion
Cover the steel with zinc billet, so that the steel does not contact with air and water directly, prevent rust.
1.1.2Principle of substitution corrosion
Also known as cathodic protection/sacrificial anode, zinc has the function of replacing iron corrosion due to its higher activity (i.e. higher oxidation potential or easier electron release).
1.3Galvanized types and characteristics
Visible floral structure of zinc obtained by solidification of galvanized layer under natural conditions
Special control methods to obtain the invisible fine spangle structure
1.3.3Galvanized type features：
Good adhesion, good weather resistance, strong corrosion resistance
1.4Galvanized type surface treatment
1.4.3Chromate + Oiled（Co）
1.4.5Chromate-free + Oiled （Co5）
1.4.7Anti-fingerprint + Chromate-free（AF5）
1.5Application of galvanized products
1.5.3Deep drawing materials
1.5.4Home appliances: ordinary home appliances, deep drawing materials home appliances, deep drawing materials high strength home appliances, fingerprint resistant home appliances
Next time we will talk about the Galvalume steel for you.