How to judge the quality of color coated coils

For the current construction market, there are many new building materials, but the variety of colored rolls makes them increasingly a popular choice. The important thing is that it can meet people's needs in all aspects. As people have higher and higher requirements for building materials, people should pay attention to the quality problem when buying building materials, so how to judge the quality of building materials is very important.

Color roll observes the thickness of the substrate and coating: The color plate consists of the substrate and the color peritoneum or coating. We need to consider the thickness of the substrate and peritoneal coating. The better steel matrix ranges 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 effect on the use time of the color plate. Some of the color steel plate on the substrate is usually compounded or laminated with color steel plate to reduce the thickness of the substrate, but the peritoneal thickness is increased to reduce the production cost of color steel plate and greatly reduce the service life of color steel plate. The board.

Observe the missing edge of color steel plate: when taking color steel plate, observe the exposed steel plate, such as section, whether there are fine, gray, black, impurity crystals. If the cutting surface is crystal clear, the quality will be better. Observe the thickness of the substrate and the thickness of the coating color coating roll is composed of a substrate and a colored peritoneum or coating. We first have to consider the thickness of the substrate and peritoneal coating. A good color coated substrate is 0.02~0.05mm, and the thickness of the film or coating is usually less than 0.15mm. Because the thickness of the substrate is very important from the point of view of the influence of the use of color coating volume. And some manufacturers producing color coated rolls tend to tamper with the substrate and color coated rolls coating or coating film, they reduce the thickness of the substrate, but increase the thickness of the peritoneum to reduce the production cost of color coated rolls, which greatly reduces the service life of color coated rolls.

Listen: Tap the color plate with your finger or something good. Color steel plate poor quality, sound dull, metal sound is not obvious, color steel plate metal sound loud and clear.

Observe the leakage edge of the color coating volume to get a piece of color coating volume, first observe whether the exposed steel such as section, such as crystal fine, whether gray, dark and impurities. If the section is crystal fine type is superior quality.

Check whether the quality certificate of color coated roll has the inspection standards of relevant departments. If possible, try to visit the manufacturers of color rolls. Look at the environment of the enterprise, whether formal.