Color coated steel plate

Color coated plate is a product made of cold-rolled steel plate and aluminized zinc, zinc aluminum magnesium, galvanized steel plate as the substrate, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), coated with paint (roll coating method) in a continuous way, after baking and cooling. Coated steel plate has light weight, beautiful appearance and good corrosion resistance, and can be directly processed.

Color coated board has no pollution, excellent weather resistance, corrosion resistance, high processing and other characteristics, widely used in construction, home appliances, transportation, packaging, machining, interior decoration, medical, automotive industry and so on.

It provides a new kind of raw material for the construction industry, shipbuilding industry, vehicle manufacturing industry, home appliance industry, electrical industry, etc., and has played a good effect of replacing wood with steel, efficient construction, energy saving, and preventing pollution

In the continuous unit, cold-rolled strip steel, galvanized strip steel (electric galvanized and hot dip galvanized) as the substrate, after surface pretreatment (degreasing and chemical treatment), with the roll coating method, coated with one or more layers of liquid paint, after baking and cooling the sheet is the coated steel plate.

Domestic back (bottom) paint and surface (front) paint coating, generally domestic is a layer of back paint, two layers of top paint, foreign business paint back paint are two layers. Because the coating can have a variety of different colors, it is customary to call the coated steel plate color coated steel plate.

Development trend

1. Improve the pretreatment process and pretreatment liquid, the number of equipment is small, the cost is low to become the mainstream process, and constantly improve the stability, corrosion resistance and environmental protection performance of the pretreatment liquid.

2. The use of high-quality substrate, the surface of the substrate, plate shape and dimensional accuracy requirements are getting higher and higher, outdoor use such as small zinc flower flat hot galvanized steel coil, zinc alloy hot plated steel coil without zinc flower flat hot galvanized steel coil and the rise of zinc alloy hot plated coil; Indoor use such as electric galvanized steel coil, film cold rolled sheet and aluminum sheet coil.

3. Pay attention to the diversification, functionalization and high-grade of products, such as self-cleaning color coated plate, high aluminum zinc aluminum magnesium color coated plate, fluorocarbon color coated plate, animal husbandry environment special color coated plate and so on.

4. Pay attention to the development of new coatings, improve general polyester, polyvinylidene fluoride (PVDF) and plastisol, obtain super color reproducibility, ultraviolet resistance, sulfur dioxide resistance, and improve corrosion resistance; Develop functional coatings that are resistant to pollution and heat absorption.

5. Due to the low cost of cold embossing than hot embossing, it has the characteristics of beautiful appearance, three-dimensional sense and high strength, making cold embossing production technology become the development trend.

6. The unit equipment is more perfect. Such as the use of new welding machine, new roller coating machine, improve the curing furnace, the configuration of advanced automatic instruments.