Hot-dip galvanizing, also known as hot dip galvanizing, melts the zinc ingot at high temperatures, puts some auxiliary materials, and then immerses the metal structural member in a galvanizing bath to attach a layer of zinc to the metal member. The advantage of hot-dip galvanizing is that it has strong anti-corrosion ability, and the adhesion and hardness of the galvanized layer are good.
"Cold plating" means "electroplating", that is, the zinc salt solution is electrolyzed, and the plating part is plated. Generally, there is no heating, and the amount of zinc is small, and it is easy to fall off in a humid environment.
Galvanizing is directed to steel grid plates, and manufacturers are strongly advised to use hot-dip galvanizing.
Hot-dip galvanizing is a chemical treatment and belongs to an electrochemical reaction.
Cold galvanizing is a physical treatment, except that a layer of zinc is applied to the surface, so the zinc layer is easy to fall off. Hot-dip galvanizing is often used in construction.
Continuous hot-dip galvanizing process: steel → heating → cooling to galvanizing temperature → galvanizing → cooling
Cold galvanizing is electroplating zinc, only 10-50g/m2, and its corrosion resistance is much worse than hot dip galvanizing. The price of electroplating is relatively cheaper.
Hot-dip galvanizing is the galvanization of the surface of the steel body under hot-dip conditions. Its adhesion is very strong and it is not easy to fall off. Although the hot-dip galvanized pipe also has rust phenomenon, it can meet the technology and hygiene in a long period. Claim.
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