Nowadays, more and more developed entrance doors and doors are widely used PET pretreatment sheets, PVC film-coated sheets, industrial color-coated sheets, etc. Enterprises producing entrance doors do not need welding, surface treatment and other polluting processing procedures. The environmental affinity is good, and the product stability is more. The hardness and abrasiveness of the surface treatment layer of the product are good, general scratching will not cause obvious impact on the surface, the color film has strong adhesion, good weatherability, and no fading and yellowing will occur after long-term use.
Whether armored doors or ordinary steel doors, all door enterprises use galvanized sheets, the material matrix can prevent the bottom layer from rusting, the adhesion of the color film on the surface of the product, and the rust ability of such galvanized sheets is strong, and there are welding spots. The untreated surface will not rust for a long time.
Coated steel sheet is a product made of cold-rolled steel sheet and galvanized steel sheet, compounded with organic film after surface chemical treatment, and then baked and cured. Some people also call this product “plastic color steel plate”. Color plate products are produced in rolls by manufacturers on a continuous production line, so they are also called coated steel coils. Color steel plate not only has the properties of high mechanical strength and easy forming of steel materials, but also has good decorative and corrosive properties of color film materials. Color steel plate is an emerging material that is respected today. With the advancement of science and technology, the enhancement of environmental awareness, and the improvement of people’s living standards, color steel prefab houses are increasingly showing vitality and broad market prospects. In particular, the color steel plate is used in doors and windows. The color steel plate door has the advantages of light weight, high thermal insulation, beautiful appearance, etc. The color steel plate door is also a type door.
