Development trends of color-coated steel sheets-Shenyang Century Weiye Steel Structure Co., Ltd

Development trends of color-coated steel sheets

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2016-11-14

　　First, high-quality substrates are used, with increasingly higher requirements for the substrate's surface, shape, and dimensional accuracy. Outdoor uses include small zinc flower flat hot-dip galvanized steel coils, zinc-free flat hot-dip galvanized steel coils, and the currently popular zinc alloy hot-dip coils; indoor uses include electrogalvanized steel coils, film-coated cold-rolled sheets, and aluminum coils.

　　Second, improving the pretreatment process and pretreatment solution. A smaller number of equipment and low cost have become the mainstream process, with continuous improvements in the stability, corrosion resistance, and environmental performance of the pretreatment solution.

　　Third, focusing on the development of new coatings. Improvements are made to general polyester, polyvinylidene fluoride (PVDF), and plastic sols to achieve superior color reproducibility, UV resistance, sulfur dioxide resistance, and improved corrosion resistance; developing functional coatings with features such as pollution resistance and heat absorption.

　　Fourth, more sophisticated machine equipment. For example, using new welding machines, new roller coating machines, improved curing ovens, and advanced automated instrumentation.

　　Fifth, because cold embossing is less expensive than hot embossing, and features aesthetic appeal, three-dimensionality, and high strength, cold embossing production technology has become a development trend.

　　Sixth, emphasizing product diversification, functionality, and high-end features, such as deep-drawing color-coated steel sheets, "yuzu peel" color-coated steel sheets, anti-static color-coated steel sheets, pollution-resistant color-coated steel sheets, and high-heat-absorbing color-coated steel sheets.