Quality Galvalume steel coil from China introduces galvanized coil


Quality Galvalume steel coil from China tells you that a galvanized coil is a thin steel sheet that is dipped in a molten zinc tank to make a layer of zinc adhere to its surface. Quality Galvalume steel coil from China tells you that it is mainly produced by the continuous galvanizing process, that is, coiled steel plates are continuously dipped in a plating tank with the molten zinc to make galvanized steel plates; alloyed galvanized steel plates.

Quality Galvalume steel coil from ChinaQuality Galvalume steel coil from China tells you that this kind of steel plate is also made by hot-dip method, but after it comes out of the tank, it is heated to about 500°C immediately to make it form an alloy film of zinc and iron. This galvanized coil has good paint adhesion and weldability.
Quality Galvalume steel coil from China tells you that the passivation treatment of the galvanized layer can reduce the folding rust (white rust) under the condition of humid temperature storage and transportation. However, the anti-corrosion performance of this chemical treatment is limited and, moreover, hinders the adhesion of most paints.
Quality Galvalume steel coil from China tells you that this kind of treatment is generally not used on zinc-iron alloy coatings. Except for the smooth surface, as a routine, the manufacturer conducts passivation treatment on other types of galvanized coatings.

Through the above introduction and analysis of quality Galvalume steel coil from China introduces galvanized coil, hope it helps you.