Hot Dip Or Cold GI Galvanized Steel Pipe And Tubes For Greenhouse
Product Description
The hot-dip galvanized pipe is made by reacting the molten metal with the iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is washed in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride. Hot dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate and the molten plating solution undergo complex physical and chemical reactions to form a corrosion-resistant, tightly structured zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so its corrosion resistance is strong.
Advantage
1 | Thick |
2 | Uniform Coating |
3 | Strong Adhesion |
4 | Long Service Life |
5 | Low Cost |
Production Step
Preparation of round steel; heating; hot rolling perforation; cutting head pickling; grinding; lubrication; cold rolling processing; degreasing; solution heat treatment; straightening and cutting; pickling; inspection of finished products.
Hot-dip galvanized pipe:
(1) the color hot-dip galvanized pipe is a bit whitish,
Galvanized strip tube:
(1) the color galvanized strip tube is a bit bluish,
(2) weight: 6 meters long and 5.5 kg (the corrosion resistance is slightly worse, the service life is shorter than the hot-dip galvanized steel pipe and the price is low economic).
(2) The galvanized strip tube is bright and reflective, with few snowflakes, and the two ports are clean and free of zinc tumors.