Do you know the knowledge of color steel plates?
Color-coated steel plate, commonly known as color steel plate, is coated with other metal non-metal or alloy as a substrate on cold-rolled steel plate. After surface treatment and transformation, the organic coating is coated and baked, which is light, high-strength, colorful and durable. Good character and so on. Widely used in construction, home appliances, decoration, automotive and other fields. The strength of the color steel plate depends on the material and thickness of the substrate. The durability depends on the coating, surface coating and processing. The coating is coated with polyester (PE), fluorocarbon coating (PVDF), and silicon modified coating (SMP). ), high weather resistant coating (HDP), acrylic coating, polyurethane coating (PU), plastisol coating (PVC), etc. The coating structure has two coatings, one baking, two coatings, two baking, etc., and the maintenance-free service life can be 10-30 years depending on the ambient atmosphere.
For buildings, the weight of the load, the span of the building, the design of the lay length, etc. all depend on the strength of the steel plate. For the color maintenance of the building maintenance structure and the galvanized sheet, there are corresponding standards in foreign countries. Such as ASTM653, ASTM792 in the United States, JISG3302, JISG3321 in Japan, EN10215, EN10147 in Europe, and the like. Divided into CQ (common commercial grade), DQ (general stamping), HSS (high-strength structural steel), and FH (fully hard steel) according to the major types of steel.
Non-ferrous metal smelters (copper, zinc, aluminum, lead, etc.) are the most challenging years for color coated steel sheets. However, reasonable selection of materials, design, and environmental protection can ensure or improve the service life of color coated steel. It should be possible to replace or maintain it for 10 years. Since the general color plates for construction are roll-formed or composite sandwiches, the punching performance of the materials is not high, so it is rarely used in the construction field (except for some door and window color plates).
