The concept of a coating plate

In the continuous unit with cold rolled strip, galvanized strip (electric galvanized and hot galvanized) as the substrate, after surface pretreatment (degreasing and chemical treatment), by roller coating method, coated with a layer or more liquid coating, after baking and cooling the plate is coated steel plate.Domestic back (bottom) paint and surface (front) paint coating, general domestic back paint a layer, two layers of top paint, foreign business back paint are two layers.As the coating can have a variety of different colors, it is customary to call the coated steel plate color coated steel plate.

Classification of painted panels

Classification by use: JW for external use, JN for internal use, furniture JJ, household appliances JD, steel window GC, other QT

Classification by coating surface state: coating board TC, embossing board YA, printing board YI

According to coating classification: polyester PE, high durability polyester HDP, polyvinylidene fluoride PVDF, polyvinylidene fluoride - plastic solution SJ

Classification according to color coating process: top surface and bottom surface --, primary coating without coating 1/0, primary coating without coating 1/1, secondary coating without coating 2/0, secondary coating with primary coating 2/1, secondary coating with secondary coating with secondary coating 2/2

The process flow of painted plate

Common continuous color coating line for two with two type drying process main production process is: decoiler -- -- -- -- -- -- -- stitching machine -- -- -- -- -- -- press roll -- -- -- -- -- -- - tension machine uncoiling looping soda-wash degreasing -- -- -- -- -- -- -- -- -- -- -- - drying cleaning -- -- -- -- -- -- -- passivation -- -- -- -- -- -- - at the beginning of drying -- -- -- -- -- - touched -- -- -- -- -- -- -- the early drying -- -- -- -- -- - finish fine tu -- -- -- -- -- - finish drying -- -- -- -- -- -- -- -- -- -- -- - air cooling winding loop - winding machine -- -- -- -- -- (volume packaging warehousing).