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How to distinguish the quality of color coated steel coil
For the current building materials market, there are many new building materials, but the diversity of color coated rolls has gradually become a popular choice. The important thing is that it can meet people's needs in all aspects. Because people have higher and higher requirements for building materials, people should pay attention to quality problems when purchasing building materials, so how to judge the quality of building materials is very important.
Observe the thickness of the substrate and coating on the color coated roll: the color plate is composed of the substrate, color peritoneum or coating. We need to consider the thickness of the substrate and peritoneal coating. Better steel substrates range from 0.02 mm to 0.05 mm, and the coating or coating thickness is usually less than 0.15 mm. The thickness of the substrate has a very important influence on the service time of the color plate. The color steel plate on some substrates is usually compounded or laminated with the color steel plate to reduce the thickness of the substrate, but the thickness of the peritoneum is increased to reduce the production cost of the color steel plate and greatly reduce the service life of the color steel plate. Plate.
Observe the edge leakage of the color steel plate: when taking the color steel plate, observe whether there are fine, gray, black and impurity crystals in the exposed steel plate, such as the section. If the cutting surface is crystal clear, the quality will be better.
Listen: Knock the color steel plate with your fingers or something good. The color steel plate is of poor material, with dull sound, and the metal sound is not obvious. The color steel plate metal sound is loud and clear.
To sum up, color coated roll is a new type of building material, which has good environmental protection functions and is widely used in roofs, walls, temporary houses, etc.