There are many kinds of materials used in home appliances, such as cold-rolled sheets, electro-galvanized sheets, hot-dip galvanized sheets, hot-dip galvanized iron alloy sheets, color-coated sheets, and film-coated sheets.
In the method of treating the panel, a high proportion of powder coating was used in the early stage. Powder coating is a “post-coating” process. The shell of home appliances is powder-coated after being processed and formed. The coating thickness is high, the cost is low, the efficiency is low, and the color The variety is single, and it takes up a lot of space, so it cannot meet the ever-changing requirements of the home appliance market. In particular, due to the need for heating and curing after powder spraying, home power plants need to build curing furnaces, which will generate a large amount of VOCs gas and have a greater impact on the environment. As a result, a large number of film-coated panels have been used to produce home appliances, which can not only reduce the number of home appliances The production process of the factory reduces the coating thickness, reduces the cost, and facilitates the centralized treatment of VOCs gas. The film-coated board belongs to the “film-coated” process, which is called VCM board in the home appliance industry, and is made by coating the surface of the steel plate.
VCM coated plate is a unique variety of home appliance plate, which is obtained after high temperature peritoneal coating on the surface of cold rolled plate or galvanized plate. Its decorative effect and surface quality are very good, and it is used in refrigerators and other products. Laminated panels are further divided into VCM panels with PVC (polyvinyl chloride) films and ECM panels with PET (polyester) films. VCM board is prepared by laminating PVC film at a certain temperature after coating adhesive on pre-passivated steel plate.