1. National key project color coated steel plate selection plan
Application industry
National key projects mainly include public buildings such as stadiums, high-speed rail stations, and exhibition halls, such as the Bird’s Nest, Water Cube, Beijing South Railway Station, and the National Grand Theater.
Industry characteristics
There are many people concerned about public buildings and the distances are close. Therefore, aesthetics and durability are the primary considerations for color-coated steel sheets. The requirements for the coating’s anti-discoloration, anti-powdering, and surface integrity are quite high.
Suggested Solution
The base material adopts AZ150 galvanized sheet, Z275 galvanized sheet or aluminum-manganese-magnesium alloy sheet; the front coating generally adopts PVDF fluorocarbon, Tianwu reinforced polyester or HDP with high weather resistance, and mostly light colors; the coating structure is various Mainly two-coating and two-baking, the thickness of the front coating is 25um.
2. Steel mill/power plant color coated steel plate selection plan
Application industry
Non-ferrous metal smelters, steel mills, power plants, etc.
Industry characteristics
Non-ferrous metal smelters (copper, zinc, aluminum, lead, etc.) are the most challenging for the service life of color plates. Steel mills, power plants, etc. will also produce corrosive media, and have higher requirements for corrosion resistance of color plates.
Suggested Solution
In view of the particularity of the metallurgical power industry, it is generally recommended to choose PVDF fluorocarbon color board, Tianwu reinforced polyester color board or HDP high weather resistance color board. It is recommended that the zinc layer on both sides of the substrate is not less than 120 g/m2, and the thickness of the front coating is not less than 25um.
3. Selection scheme of arched roof color plate
Application industry
Vaulted roofs are mainly used in sports venues, trading markets, exhibition halls, warehousing and logistics and other fields.
Industry characteristics
Vaulted roofs are widely used in sports venues, trading markets, exhibition halls, warehousing and logistics due to their characteristics of no beams and purlins, wide space, large spanning ability, low cost, less investment, short construction period, and economic benefits. Due to the construction structure without beams, purlins, and large space span, the vaulted roof has higher requirements on the strength of the color plate.
Suggested Solution
According to the span of the arched roof, the base plate is recommended to use a structural high-strengthcolor coated steel platewith a yield strength of 280-550Mpa, and its grade is: TS280GD+Z～TS550GD+Z. The double-sided coating of the substrate is not less than 120 grams per square meter. The coating structure is generally two-coated and two-baked. The thickness of the front coating is not less than 20um. Reinforced polyester, HDP high weather resistance or ordinary PE polyester, etc.
4.Color coated steel plate selection plan for ordinary industrial plants
Application industry
Ordinary industrial plants, warehousing and logistics warehouses, etc.
Industry characteristics
Ordinary industrial plants and storage and logistics warehouses, the production and use environment itself does not corrode the color plates, and the requirements for the corrosion resistance and anti-aging of the color plates are not high, and more consideration is given to the practicability and cost performance of plant construction.
Suggested Solution
Ordinary PE polyester color board is most widely used in the enclosure system of ordinary industrial plants and warehouses due to its high cost performance. The double-sided zinc layer of the substrate is 80 grams per square meter, and the thickness of the front coating is 20um. Of course, the owner can also appropriately reduce or increase the quality requirements of color plates according to their own budget and specific industries.
5. Selection plan for supporting color coated steel plates for boilers
Application industry
Boiler matching color plates mainly include boiler outer packaging, boiler insulation outer guard plate, etc.
Industry characteristics
The temperature difference between hot and cold of the boiler is relatively large, and condensed water is easy to form, which requires thecolor coated steel platecoating used as the outer packaging and outer guard to have the performance of high temperature resistance and temperature difference resistance.
Suggested Solution
According to the characteristics of the boiler industry, it is recommended to use PVDF fluorocarbon and Tianwu reinforced polyester coated color plates, but considering the cost and cost, the current boiler industry mainly uses PE polyester coated color plates, and the colors are mainly silver gray and white. Mainly, the zinc layer on both sides of the substrate is 80 grams per square meter, and the coating thickness is not less than 20um.
6. Pipeline insulation and anti-corrosion color coated steel plate selection plan
Application industry
Insulation and anti-corrosion engineering of heat, petroleum, natural gas, and chemical product pipelines.
Industry characteristics
Because the color-coated sheet not only has excellent anti-oxidation and anti-corrosion properties, but also has more colorful colors, the traditional anti-corrosion of galvanized steel pipes has been gradually replaced by color-coated sheets.
Suggested Solution
In order to reduce the cost and cost, it is recommended to use ordinary PE polyester color board with a zinc layer of not less than 80 grams per square meter and a front coating thickness of not less than 20um. For oil and natural gas pipelines in the field, considering the special environment in which the pipelines are located, it is recommended to use PVDF fluorocarbon or HDP high weather resistance color plate.
7. Selection scheme of color coated steel plate for chemical anti-corrosion engineering
Application industry
Chemical workshops, chemical tank insulation and anti-corrosion projects.
Industry characteristics
Chemical products are volatile, and are prone to produce highly corrosive volatile substances such as acid or alkali. When exposed to water, they are easy to form dewdrops and adhere to the surface of the color plate, which will corrode the coating of thecolor coated steel plateand may further corrode to the surface of the color plate. Zinc layer or even steel plate.
Suggested Solution
Considering the special anti-corrosion requirements of the chemical industry, it is recommended to choose PVDF fluorocarbon color board, Tianwu reinforced polyester color board or HDP high weather resistance color board. -25um. Of course, the standard can also be appropriately lowered according to the specific project cost and requirements.
8.color coated steel plate selection plan for mining industry
Application industry
Iron ore, coal, and other ore mining industries.
Industry characteristics
The environment of the mining site is relatively harsh, and the sand and dust are serious. The sand and dust are mixed with metal dust, which will form rust after being soaked in rainwater after precipitation on the surface of the color plate, which is very destructive to the corrosion of the color plate. The ore sand deposited on the surface of thecolor coated steel plateis blown by the wind, and the damage to the coating surface is also relatively severe.
Suggested Solution
In view of the harsh environment of the mining site, it is recommended to use SMP silicon-modified polyester color plates that are anti-corrosion, scratch-resistant, and wear-resistant. The substrate is a galvanized sheet with a double-sided zinc layer of not less than 120 grams per square meter, and the thickness of the front coating is not less than 20um.
Post time: Jul-25-2023