Color coating production line is mainly used to produce color painting board, color painting board, industry also known as color plate, color board.Color coating steel is cold rolled steel sheet and galvanized steel substrate, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), with the method of continuous coated with paint (roller coating method), after baking and cooling and manufactured products.Coating on the steel plate has a light weight, beautiful and good anti-corrosion performance, and can be directly processed, it to construction, shipbuilding, automobile manufacturing, household appliances industry, electrical industry provides a new type of raw materials, such as the steel for wood, such as efficient construction, save energy and prevent pollution.Send InquiryChat Now
The product name：Coating line
In the domestic and foreign high-speed continuous color coating production line, roller coating is generally adopted, which is to form a certain thickness of wet coating on the roller, and then transfer part or all of the wet coating to the coating.It is characterized by fast speed and high production efficiency.
The coating process is as follows: the material roller is immersed in the lacquer disc, and the coating is transferred directly to the coating roller by the roll body rotation, and then the coating is applied to the strip.When three roll coating, the pick-up roll coating from the paint plate adsorption, through reverse slowly spinning metering roller, make the pick-up roll coating on the flat, then transfer to the coating roller, the final coating on the strip of reverse rotation.The operator needs to adjust the speed ratio of each roll and the pressure between the rolls according to the coating conditions and finished product, so as to produce qualified color coating.There are many kinds of specific coating methods, according to the number of roller rolls, can be divided into two rollers and three rollers;According to the direction of roller coating, it can be divided into reverse roller coating and roll coating. The production plant can choose the coating method according to the requirements of finished products and the coating parameters.
Integrated the advantages and disadvantages of direct coating and reverse coating, now in general use direct coating primer, coating paint and using reverse coating of paint, in addition, three roll roll relative to the two roller, coating good flowing property, high precision, but difficult to adjust, number plate or car plate used in the production of home appliance, to date, most production building materials consisting mainly of the production line adopts two roller coating.
In MCL process, affects the quality of the problem is very much, raw materials, cleaning, chromium, coating, curing, such as water will affect the finished product, and it is difficult to distinguish, judging method commonly used in production, on the whole, due to the paint coating need to adjust the parameters of many, is the place where the most prone to problems.