|hot galvanizing is melting in the heat inside the liquid zinc immersion plating, production speed, coating thickness, but are not uniform, the market allows the minimum thickness of 45 microns, up to 300 microns.color is darker, more consumption of zinc metal, metal forming infiltration layer and matrix, and good corrosion resistance, hot dip galvanized outdoor environment can stay for decades.
cold galvanizing (electric galvanized) is in the plating bath by current unipolarity zinc plating on metal surface gradually, production speed is slow, uniform coating, the thickness of thin, usually only 3-15 microns, bright appearance, corrosion resistance is poor, usually a few months will rust.
relative to hot dip galvanized, electro-galvanizing production cost is low.
cold galvanized and hot dip galvanized difference:
cold galvanized and hot dip galvanized zinc on difference is different, you can identify them from color, cold galvanized shiny hair silvery white with yellow color.hot dip galvanized shiny hair white.
hot dip galvanized scope of application:
due to the coating thicker, hot galvanizing is electric galvanized has better protective performance, so it is used in harsh working environment important protective coating of steel parts.hot dip galvanized products in chemical equipment, oil processing, marine exploration, metal structure, electricity, shipbuilding and other industries are widely used, in agriculture such as pesticides, sprinkler irrigation, greenhouse and construction such as water and gas transmission, wire casing, scaffolding, bridge, highway guardrail, etc., have been widely used in recent years.
cold galvanizing scope of application:
building bound with wire mainly adopts cold low zinc plating processing of the wire.