Hot dip galvanized steel pipes are widely used in construction, machinery, coal, chemical industry, railway vehicles, automotive industry, roads, Bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery manufacturing industry.
Hot dip galvanized steel pipe surface is plated layer or electric galvanized welded steel pipe. Galvanized coating steel pipe corrosion resistance can increase, prolong service life. Galvanized pipe uses is very widely, in addition to a general low pressure fluid such as water, gas, oil line pipe, also used as oil industry, especially the ocean oil field oil well pipe, oil pipe, chemical coking equipment of oil heater, the condensing, exchange of coal distillation wash oil cooler for tube, and trestle pile, mining tunnel supporting frame tube, etc.
Hot dip galvanized pipe is the molten metal and iron substrate reaction and produce alloy layer, so that the substrate and coating combination of both. Is hot dip galvanized steel pipes to pickling, in order to remove iron oxide on the surface of the carbon steel pipe after acid cleaning, by ammonium chloride or zinc chloride or ammonium chloride and zinc chloride mixed aqueous solution tank cleaning, and then sent to the hot dip plating tank. Hot dip galvanized with uniform coating, strong adhesion, long service life, etc. Hot dip galvanized steel substrate
With molten electrolyte solution in complex physical and chemical reaction, form a corrosion resistant structure compact zinc alloy layer. Pure zinc alloy layer and layer and structural steel pipe. So the corrosion resistant ability.
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