First, the color steel plate adopts high-quality substrate, and the requirements for the surface, shape and dimensional accuracy of the substrate are getting higher and higher, such as small spangle flat hot-dip galvanized steel coil, no spangle flat hot-dip galvanized steel coil for outdoor use Zinc alloy hot-dip galvanized coils that are emerging in time; indoor use such as electro-galvanized steel coils, film cold-rolled sheets and aluminum coils.
Second, improve the pretreatment process and pretreatment solution, the number of equipment is small and the cost is low to become the mainstream process, and the stability, corrosion resistance and environmental protection performance of the pretreatment solution are continuously improved.
Third, pay attention to the development of new coatings, improve general polyester, polyvinylidene fluoride (PVDF) and plastisol to obtain super color reproducibility, anti-ultraviolet, anti-sulfur dioxide, and improve corrosion resistance; Thermal and other functional coatings.
Fourth, the unit equipment is more complete. Such as the use of new welding machines, new roller coaters, perfect curing furnaces, and advanced automation instruments.
Fifth, because cold embossing is lower in cost than hot embossing, and has the characteristics of beauty, three-dimensionality, and high strength, cold embossing production technology has become a development trend.
Sixth, the color steel plate pays attention to the diversification, functionalization and high-grade of products, such as deep-drawing color-coated plate, “grapefruit skin” color-coated plate, anti-static color-coated plate, pollution-resistant color-coated plate, high heat-absorbing color-coated plate. Coating etc.
