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What are the commonly used surface treatments for precision punching mesh?

Nov. 16, 2022

The common surface treatments of precision punching mesh are: galvanizing can be divided into electro-galvanizing and hot-dip galvanizing. The dense basic zinc carbonate film formed on the zinc surface is used to achieve the purpose of anti-rust, anti-corrosion and beautiful appearance. Electrogalvanizing is characterized by a fine and tight zinc layer with strong gloss. Hot-dip galvanizing is to treat the material to be plated for anti-oxidation (anti-oxidative free radicals), annealing, etc. and then put it into the zinc solution for high-temperature hot-dip galvanizing. 50 years of service life (generally used in hot plate punching mesh).

Dip plastic: heat the mesh (with a variety of color options), so that the plastic powder melts on the surface of the workpiece. The heating time and temperature will affect the thickness of the plastic layer. Dip plastic can enhance the waterproof, anti-rust and anti-erosion properties of the product.

Plastic spraying: The plastic powder is adsorbed on the workpiece by the principle of static electricity, and then heated and cured to achieve the purpose of anti-erosion of the product coating. The advantages are low cost and fast speed.

Anodic oxidation: The mesh is punched and formed and placed in the corresponding acidic electrolyte as the anode. Under the action of certain conditions and current, electrolysis is performed to form a layer of alumina film. The film not only improves the hardness of the mesh, Wear resistance, corrosion resistance, also has good insulating properties and heat resistance (usually used for aluminum alloy mesh)

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