Zhejiang Certeg International Co.,Ltd.
Certeg is a leading China color steel coils supplier, factory, manufacturer that focuses on steel coil. Complete specifications and high quality. We are committed to treating customers with integrity and quality, thus winning a group of loyal customers.
Color steel coil is a kind of composite material, also called color coated steel plate. It is a product made of strip steel after continuous surface degreasing, phosphating and other chemical transfer treatments on the production line, and then coated with organic paint and baked.
The coating types of color steel coils can be divided into: polyester (PE), silicon modified polyester (SMP), polyvinylidene fluoride (PVDF), high weather resistance polyester (HDP), clinker sol.
Color steel materials are divided into five categories: packaging, home appliances, building materials, optical materials and decorative materials. Among them, the color steel materials for home appliances have the best and most refined technology and the highest production requirements.
The development trend of color steel coil:
First, the use of high-quality substrates requires higher and higher surface, plate shape and dimensional accuracy of the substrates. Outdoor use such as small spangle flat hot-dip galvanized steel coils and zinc-free flat hot-dip galvanized steel coils are released in time. The emergence of zinc alloy hot-dip coils; indoor use such as electro-galvanized steel coils, film cold-rolled sheets and aluminum coils.
Second, improve the pretreatment process and the pretreatment liquid, the number of equipment is small, and the low cost has become the mainstream process, and the stability, corrosion resistance and environmental protection performance of the pretreatment liquid are continuously improved.
Third, pay attention to the development of new coatings, improve general polyester, polyvinylidene fluoride (PVDF) and plastisol, obtain super color reproducibility, anti-ultraviolet, sulfur dioxide, and improve corrosion resistance; develop resistance to pollution and absorption Functional coatings such as heat.
Fourth, the unit equipment is more complete. Such as the use of new welders, new roller coaters, perfect curing furnaces, and advanced automated instruments.
Fifth, because cold embossing has lower cost than hot embossing, and has the characteristics of beautiful appearance, three-dimensional effect, and high strength, cold embossing production technology has become a development trend.