Color galvanized coil manufacturing operations

Need to pay attention to the production of color galvanized coil.

First, the high quality prepainted color galvanized coil adopts high-quality substrate, and the surface, plate shape and dimensional accuracy requirements of the substrate are increasingly higher. For outdoor use, such as small zinc flower flat hot-dip galvanized steel coil, zinc-free flower flat hot-dip galvanized steel The roll is promptly raised to the hot-rolled zinc alloy coil; indoor use is in the case of electro-galvanized steel coil, film cold-rolled sheet and aluminum coil.

Second, the process of pretreatment and the pretreatment liquid are improved, the number of equipment is small, and the cost is low, which becomes the mainstream process, and the stability, corrosion resistance and environmental performance of the pretreatment liquid are continuously improved.

Third, pay attention to the development of new coatings, improve the general polyester, polyvinylidene fluoride (PVDF) and plastisol, obtain super color reproducibility, anti-ultraviolet, anti-sulfur dioxide, improve corrosion resistance; develop pollution resistance, suction Functional coatings such as heat.

Fourth, the unit equipment is more complete. Such as the use of new welding machines, new roller coating machines, complete curing ovens, and advanced automation instruments.

Fifth, because cold embossing has lower cost than hot embossing, it has the characteristics of beauty, three-dimensionality and high strength, which makes the cold embossing production technology become the development trend.