Coloured steel plate, you may not know its official definition. Coated steel plate with organic coating is called color-coated steel plate, also known as color-coated steel plate.
It is mainly divided into floor deck, color steel composite board and veneer. It is mainly used in the wall and roof of movable panel house, integrated house, public workshop and large public building. Today, Fengyuan Colored Steel Plate, a manufacturer of Suzhou Colored Steel Plate, tells you about the problems and development of colored steel plate.
1. Although the hot-dip galvanized baseboard used for building materials at present has great capacity, there are few excellent baseboards such as flat galvanized steel coil and galvanized alloy coated steel coil without zinc sparkle.
_2. The variety and quality of domestically produced coatings can not fully meet the demand. The high price of imported coatings reduces the competitiveness. The demand for plastic film for pasting multicolored boards relies on imports, with short coatings, thick coatings, functional, high strength and rich tricks.
3. The product is not up to standard, which constitutes a serious waste of resources. There are too many low-capacity units with capacity of 40,000 tons per year or less, and there are problems in product quality and environmental resource maintenance.
_4. There are too many new color painting units in China, which far exceed the market demand. As a result, many color painting units have a very low start-up rate and even stop production.
_Development Trend
_1. Selecting high-quality substrates requires higher and higher surface, shape and standard accuracy of substrates. Outdoor use such as small galvanized flat hot-dip galvanized coil, non-galvanized flat hot-dip galvanized coil and timely rolled galvanized alloy hot-dip coil; indoor use such as galvanized steel coil, coated cold-rolled sheet and aluminium coil.
_2. Improve the pretreatment process and the pretreatment liquid, the number of equipment is small, low cost becomes the mainstream process, and constantly improve the stability, corrosion resistance, environmental protection function of the pretreatment liquid.
_3. The development of ab initio coatings has improved the general polyester, polyvinylidene fluoride (PVDF) and plastic sol to achieve color reproducibility, ultraviolet resistance, sulfur dioxide resistance, trek corrosion resistance, pollution resistance, heat absorption and other functional coatings.
_4. The equipment of the unit is more perfect. Such as the selection of new welding machines, new roll coating machines, improve the curing furnace, equipped with advanced automation appearance, etc.
5. Because cold embossing is cheaper than hot embossing, it has the characteristics of beauty, three-dimensional sense and strength, so cold embossing technology has become the trend of development.
