prepainted galvanized steel coils can meet certain requirements during use, but in the production process, they must be operated in strict accordance with the operating regulations to achieve good results. Let's understand together to identify the quality problems of prepainted galvanized steel coils.

First observe the thickness of the base plate and the cover film of the prepainted galvanized steel coil. The prepainted galvanized steel coil is composed of a base plate and a colored peritoneum or coating. First, we must consider the thickness of the substrate and peritoneal coating. The better color steel substrate is 0.02~0.05mm, and the thickness of the coating or plating is often less than 0.15mm. Since the thickness of the substrate is very important in terms of affecting the use time of the prepainted galvanized steel coil, the manufacturers of the prepainted galvanized steel coil are more involved in the coating and covering film of the substrate and the prepainted galvanized steel coil to reduce the thickness of the substrate. , And increase the thickness of the peritoneum, reduce the cost of producing prepainted galvanized steel coils, and greatly shorten the life of prepainted galvanized steel coils.

When the prepainted galvanized steel coil is listening to the sound, hit the prepainted galvanized steel coil with a finger or a hard object. If the color steel plate material is not good, the sound is boring, and the metal sound is not obvious. The quality of the prepainted galvanized steel coil metal sound product is better, louder and more brittle. Observe the leaking edge of the colored steel and take a piece of colored steel. First, observe whether the exposed part of the colored steel, such as the cross section, is finely crystalline, whether it is gray, dark, or impurities. If the cut surface is finely crystalline, the product quality will be better.

The above is about identifying the quality problems of prepainted steel coils. During the operation, you must operate in strict accordance with the regulations. If you don't understand, you can call for consultation. We are a professional manufacturer and will give you reasonable suggestions.
Xuzhou Powerson Metal Technology Co., Ltd supplies the best quality and price color coated steel coils and sheets.