Shandong color steel coil manufacturers introduce that color steel coil is a composite material, also called color-coated steel plate. It is made of strip steel, which is baked with organic paint after continuous chemical transfer treatment such as surface degreasing and phosphating on the production line.

Shandong color steel coil manufacturers said that color steel coil coatings can be divided into: polyester (PE), silicon modified polyester (SMP), polyvinylidene fluoride (PVDF), high weather resistance polyester (HDP) and clinker sol.

Color steel materials are divided into five categories: packaging, home appliances, building materials, optical materials, and decorative materials. Among them, color steel materials for home appliances have good technology and fine production requirements.

Related issues:

1. Although the production capacity of hot-dip galvanized substrates for building materials with a large amount is very large, there is a lack of good substrates such as flat-plate hot-dip galvanized steel coils and zinc alloy coated steel coils without zinc flowers;

2. The variety and quality of domestic coatings cannot fully meet the demand. The high price of imported coatings reduces the competitiveness. The plastic film required for pasting color boards still needs to be imported. There is a lack of color-coated boards with thick coatings, strong functionality, high strength and rich colors;

3. The product is not standardized enough, resulting in a serious waste of resources. There are too many low-capacity devices below 40,000 tons/year, and there are problems with product quality and environmental resource protection;

4. There are too many new color-coated units in the country, which far exceeds the market demand, resulting in low operating rates and even shutdown of many color-coated units.

The development trend of color steel coils:

1. Shandong color steel coil manufacturers said that the use of high-quality substrates requires higher and higher requirements for the surface, shape and dimensional accuracy of the substrates, such as outdoor small zinc flower hot-dip galvanized steel coils and zinc-free alloy hot-dip galvanized steel coils. Indoor use such as galvanized steel coils, cold-rolled sheets with films and aluminum coils.

2. The pretreatment process and pretreatment liquid should be improved. Less equipment and low cost have become the mainstream process, and the stability, corrosion resistance and environmental protection performance of the pretreatment liquid should be continuously improved.

3. Pay attention to the development of new coatings, and improve general-purpose polyester, polyvinylidene fluoride (PVDF) and plasticized sol to obtain strong color reproducibility, UV resistance, sulfur dioxide resistance and corrosion resistance; develop pollution resistance, heat absorption and other functional coatings.

4. The unit equipment is more complete. Such as the use of new welding machines, new roller coaters, perfect curing furnaces, and advanced automation instruments.

5. Because cold pressing has the characteristics of lower cost than hot pressing, beautiful appearance, strong three-dimensional sense and high strength, the production technology of cold pressing has become a development trend.