The development trend of color coated roofing sheet
Color coated roofing sheet is color coated steel plate.Color coated roofing sheet is a steel plate with organic coating. Color coated roofing sheet is divided into single board, color steel composite board, floor plate and so on. It is widely used in large public buildings, active houses, and the walls and roofs of integrated houses.
First, the high quality steel plate, whose shape and size precision of the substrate requirements are increasingly high, such as outdoor flat hot galvanized steel coil with small zinc flower,smooth hot dipped galvanized steel coils without zinc flower, Zn-AL hot dipped galvanized coils; indoor use such as Electro galvanized steel coil,aluminum coils and etc.
Second, improving the pretreatment technology and pretreatment liquid, the amount of equipment and the cost are low,which is becoming the mainstream technology, constantly improving the stability, corrosion resistance and environmental protection performance of the pretreatment fluid.
Third, we should improve the general polyester, polyvinylidene fluoride (PVDF) and plastic sol through the development of repaint, get super color reproducibility, anti ultraviolet, sulfur dioxide and corrosion resistance, and develop functional coatings, such as pollution resistant and heat absorbing.
Fourth, the unit equipment is more perfect. For example, a new type of welding machine, a new roll coating machine, a perfect curing furnace and an advanced automatic instrument are used.
Fifth, because of the low cost of the cold embossing, it has the characteristics of beautiful, stereoscopic and high strength, which makes the production technology of cold embossing become the trend of development.
Sixth, we must pay attention to product diversification, functionalization and high quality, such as deep impact color coated panels, shaddock peel color coated boards, antistatic color coated boards, stain resistant color coated panels, high heat absorbing color coated boards, etc.
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