6 oxygen index: (OI) 32 (provincial fire products quality inspection station).
The substrate of the color steel plate is a cold-rolled substrate, a hot galvanized substrate and an electro galvanized substrate. Coating types can be divided into polyester, silicone modified polyester, PVDF two and plastic sol. The surface state of color steel plate can be divided into coated sheet, embossing plate and printing plate, color steel appliances widely used in construction and transportation industries, the construction industry is mainly used in steel plants, airports, warehouses and other industrial and commercial refrigeration roof of the building walls and doors, building color steel less.
First, the high quality substrate surface, shape and size precision of the substrate requirements are increasingly high, such as outdoor small zinc flower flat hot galvanized steel coil, no zinc flower smooth hot dipped galvanized steel coils in zinc alloy under heat up roll plating; indoor use such as galvanized steel coil, cold foil rolled plate and aluminum volume.
Second, to improve the pretreatment process and pretreatment of liquid, a small number of equipment, low cost to become the mainstream technology, continuous improvement of the stability of the pretreatment solution, corrosion resistance, environmental protection performance.
Third, note the development of new coatings, the general polyester, polyvinylidene fluoride (PVDF) and plastic sol was modified to obtain super color reproducibility, anti UV, anti sulfur dioxide and improve corrosion resistance; develop resistance to pollution, heat absorbing functional coatings.
Fourth, the equipment is more perfect. Such as the use of new welding machine, a new type of roller coating machine, improve the curing furnace, equipped with advanced automation instrumentation.
Fifth, because of the low cost, low cost, beautiful appearance, high sensitivity and high strength, the cold embossing technology becomes the development trend.
Sixth, pay attention to the diversification of products, functional, high-grade, such as deep stamping color coated plate, "grapefruit skin" color coated plate, anti-static color coated plate, color coated with pollution, high heat absorbing color coated plate, etc..