What Is The Protective Mechanism Of Hot Galvanizing Layer?
- Jun 06, 2018 -
What is the protective mechanism of hot galvanizing layer?
For a long time, the steel plate is hot galvanized., because the surface of zinc in a corrosive environment can produce dense protective film, i.e., 2Zn+O polarization =2ZnO, which can not only protect the zinc layer itself.And it protects the steel base;On the other hand, when galvanized steel plate in humid environment or in a dielectric, zinc layer and base steel galvanic cell formation, the anode protection effect, so as to avoid further corrosion of the steel in the bad environment, extend the life of the steel.The specific reaction is as follows:
Anode: zn-2e to Zn cathode: oh, go, go, go, go, go, go, go, go, go, go
The reaction product: Zn+OH, Zn(OH), ZnO
What are the main USES of hot galvanized sheet?
Hot galvanized sheet is mainly used for outdoor, its corrosion environment is bad, the specific application in the construction industry, vehicles industry, the household equipment industry, machinery industry, electronic technology, container manufacturing and packaging industry, etc.
What is hot and humid galvanizing and dry galvanizing?
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Dry hot dip galvanizing - the hot dip galvanizing method is called dry hot dip galvanizing.