November 7, 2022
What are the three hot dip galvanizing methods of galvanized steel plate
1. Roller coating method. Roller coating is one of the most common processing methods. Amorphous strips are cleaned and prepared first. The roller coated generator set is divided into one coated one baking, two coated two baking, three coated three baking and other types, in order to consider the provisions of different coating thickness, the number of two coated two baking generator sets in the world is the largest. Commodities are commonly used in outdoor engineering construction, but also in interior decoration, household appliances, furniture, equipment and other industries.
2. Glass film method. The glass film method is used to make color coated steel plate with high power manufacturing. The preparation treatment basis before spraying is the same as that of roller coating. After preparation treatment, the surface of amorphous strip is coated with back paint, and then the plastic film is attached to the top surface of the base steel plate with thermosetting adhesive. This kind of glass film color coated steel plate appearance is beautiful, with fire safety, corrosion resistance, acid and alkali resistance and other characteristics, its flame retardant, stain resistance is good. But the price is higher, its key commodities used in household appliances, furniture, interior decoration and vehicle interior decoration design.
3. Curtain flow method. In the initial coating, roll coating is used, and in the finishing coating, screen flow coating machine is used to apply the liquid architectural coating on the surface of hot rolled strip. The coated hot rolled strip is not easy to leave roll marks, and the operation is difficult. It is suitable for the manufacture of high-quality color coated steel plate for household appliances.
