Color-coated steel sheets (commonly known as prepainted steel sheet) are galvanized steel sheets (hot-dip galvanized, electro-galvanized), which are subjected to surface pretreatment (degreasing and chemical treatment) and coated by roll coating method, then after baking and cooling, steel sheet manufactured with one or more layers of liquid paint of different colors.
(The vast majority of the color-coated rolls of the origin are taken in the forward direction)
Chromatic Aberration, Stripping, Slip Coating, Scratching, Deformation, Pits, Black Spots, Wrinkles on Surface, Foaming, Water pattern, Peeling Off the Coating After Pressing, Deviation, Paint Decay.
Precautions for Shearing Processing: The table surface that is in contact with the color coating plate during cutting should be covered with a rubber mat and kept clean, minimize the burrs on cut surface, and timely remove the chips and metal burrs generated during the short cut to prevent the coating of steel sheets are scratched each other when shearing the stack.
Storage and Transportation Requirements: steel coils shall not wetted by water, stored indoors, avoiding open storage. If there is condensation caused by rain, remove the moisture immediately and use it as soon as possible. Do not accumulate steel coils to avoid damage to the coated coil and steel plate. In order to prevent bumps and injuries, special spreaders must be used during loading and unloading.