Process flow and main purpose of color coated board

Time：

2020-09-07

Color coated plate, also known as color steel plate, color plate in the industry. Color coated steel plate is made of cold-rolled steel plate and galvanized steel plate as the substrate, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), coating with paint in a continuous method (roll coating method), baking and cooling Into the product. Coated steel plate has light weight, beautiful appearance and good corrosion resistance, and can be directly processed. It provides a new type of raw material for the construction industry, shipbuilding industry, vehicle manufacturing industry, home appliance industry, electrical industry, etc. Good results such as wood, construction, energy saving, and pollution prevention. Production Process: The main production processes of the common two-coating and two-baking continuous color coating unit process flow are: Uncoiling machine-sewing machine-pressing roller-tension machine-uncoiling looper-alkali degreasing-cleaning ----Drying-------passivation-------drying------primary coating-------primary coating drying------surface Lacquer fine coating------top paint drying------air-cooled cooling------winding looper-----winding machine-----(the next volume is packed into Library). Product Usage: The color-coated steel plate using galvanized steel plate as the base plate, in addition to zinc protection, the organic coating on the zinc layer has a covering and isolation function, which can prevent the steel plate from rusting, and has a longer service life than galvanized steel plate. The service life of steel plate is 50% longer than that of galvanized steel plate. However, in different regions and different parts of use, the service life of color coated sheets with the same galvanizing amount, the same kind of paint, and the same coating thickness will be very different. For example, in industrial areas or coastal areas, due to the effect of sulfur dioxide gas or salt in the air, the corrosion rate increases and the service life is affected. In the rainy season, the coating will be corroded quickly and the service life will be reduced if the coating is wetted by rain for a long time, or where the temperature difference between day and night is too large and easy to condense. Buildings or workshops made of color-coated steel plates often have a long service life when they are washed by rain, otherwise they will be affected by the effects of sulfur dioxide gas, salt and dust. Therefore, in the design, if the slope of the roof is larger, it will be less likely to accumulate dust and other dirt, and the service life will be longer; for those areas or parts that are not frequently washed by rain, they should be washed regularly with water. Home appliances: 31% Construction: 63% Others: 6% Color steel plates are widely used. It has excellent weather resistance, corrosion resistance and high processing characteristics. Color steel plates are widely used in construction, home appliances, transportation, packaging, mechanical processing, interior decoration, medical treatment, automobile industry, etc. Quality characteristics: 1. Economical The production process of color-coated steel plate is less harmful to the environment, and can be recycled, which greatly reduces environmental pollution, and has a lighter weight, which can save load-bearing structural materials and reduce manufacturing costs. 2. Convenient processing and construction Color-coated plates can be rolled into profiled steel plates of various shapes and lengths according to needs, generally without overlap in the middle, simple construction and good waterproof effect.