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Three Galvanizing Methods of Galvanized Sheet
1. Roller coating method. Roller coating is the most widely used process method. Strips are first cleaned and surface pretreated. Roller coating units are divided into one-coat-one-bake, two-coat-two-bake, three-coat-three-bake and other types to meet the requirements of different coating thicknesses. There are the most two-coat and two-bake units in the world. Products are widely used in outdoor buildings, but also in interior decoration, home appliances, furniture, appliances, and other fields.
2. The film method. The film coating method is used to produce low price color corrugated steel sheet with high horsepower production. The pretreatment before the coating is basically the same as that of the roller coating method. On the top surface of the substrate, after cooling and flattening to create benefits, a beautiful-looking color film board is obtained. This kind of film color coated board has beautiful appearance, fire resistance, corrosion resistance, acid and alkali resistance, etc., and it has good fire resistance and pollution resistance. However, the price is high, and its products are mainly used in home appliances, furniture, interior decoration and interior decoration of cars and ships.
3. Curtain flow method. Roller coating is used for initial coating and a curtain coating machine is used for finishing coating. Liquid coating is applied to the surface of the strip. The coated strip does not leave roll marks, which is difficult to control and suitable for the production of high-quality home appliances. Coated.