Hot dip galvanized steel pipe is widely used in building, machinery, coal, chemical industry, railway vehicles, automotive industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, mining machinery and other manufacturing industries.
The hot-dip galvanizing tube is to make the molten metal react with the iron matrix to produce the alloy layer, so that the matrix and the two layers of the coating are combined. Hot dip galvanizing is to pickle steel pipes first, then remove iron oxides on the surface of steel pipes, then pickle them, then clean them through ammonium chloride or zinc chloride water solution or ammonium chloride and zinc chloride mixed water solution tank, then send them into hot dip bath. Hot dip galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on.
Cold galvanizing is electrogalvanizing with little amount of galvanizing, only 10 - 50g/m2, and its corrosion resistance is much different from that of hot dip galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most of the use of galvanizing. Only small businesses of small size and old equipment use galvanizing, of course their prices are relatively cheap.
The functions and advantages of tin plating pipe
1, the steel pipe surface with the use of anti embroidery more durable, not even too fast oxidation, will not form white rust on the steel pipe;
2, the steel pipe is fully protected. After heating, the steel pipe is plated with zinc, and the concave and convex parts are protected.
3. It has the characteristics of anticorrosion and wear-resisting, so that the use of steel pipe for longer time;
4, since the steel has been plated with zinc on the outside of the steel tube, it saves the time of oil or paint on the outside, and the construction is more convenient.
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