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Color Steel Is Different From Plastic Steel
Jul 02, 2018

Color steel and plastic steel are different in the composition of materials. A magnet can move. [editor this paragraph] caigang problems are as follows: 1. Although the amount of the biggest building materials with hot dipped galvanized substrate capacity is very big, but lacks a smooth zinc hot dipped galvanized steel coil and zinc alloy plating steel roll good substrate; 2. The domestic paint variety, quality can not fully meet the requirements, for the high price of imported coating reduces the competitiveness, the paster color plastic film thickness still need to rely on imports, the lack of coating thickness, functional, high strength, design and color is rich in high-grade caitu; 3. The products are not standardized enough, resulting in serious waste of resources, excessive production capacity of low-production capacity units below 40,000 tons/year, and problems in product quality and environmental resource protection; 4. There are too many newly built color painting units across the country, which far exceeds the market demand, resulting in low start-up rate of many color painting units and even discontinued production. [editor this paragraph] caigang trends: first, using high quality base board, on the surface of the substrate, strip shape and dimension accuracy requirement is becoming more and more high, outdoor use such as small zinc flowers smooth level off hot dip galvanized steel coil, zinc galvanized steel coil in a timely manner under the rise of zinc alloy hot dip roll; For indoor use, such as galvanized steel coil, coated cold rolling plate and aluminum coil. Second, improve the pretreatment process and the pretreatment liquid, the equipment quantity is small, the cost is low becomes the mainstream technology, improves the stability of the pretreatment liquid, the corrosion resistance, the environmental protection performance unceasingly. Third, pay attention to the development of new coatings, to general polyester, poly (vinylidene fluoride) (PVDF) and modified plastisol, super color reproducibility, uv resistance, resistance to sulfur dioxide, improve the corrosion resistance; Develop anti-pollution, heat-absorbing and other functional coatings. Fourth, the unit is better equipped. For example, new type welding machine, new type roller coating machine, perfect curing furnace, equipped with advanced automatic instruments. Fifthly, because the cost of cold pressed flower is lower than that of hot pressed flower, it has the characteristics of beauty, stereoscopic feeling and high strength, making the production technology of cold pressed flower a developing trend. Caigang usually use national standards and industry standards: GB/T 12755-91 building caigang GB 6723-86 general cold bending open rack caigang size, shape, weight and allowable deviation of GB 50018-2002 type cold bending thin-wall caigang technology standard GB 50205-2001 color steel structure engineering construction quality acceptance specification