Summary: 1. Observe the thickness of the substrate and the thickness of the coatingThe color steel plate is composed of a substra...
1. Observe the thickness of the substrate and the thickness of the coating
The color steel plate is composed of a substrate and a colored peritoneum or coating. We must first consider the thickness of the substrate and the peritoneal coating. The better color steel plate substrate is 0.02~0.05mm, and the thickness of the coating or coating is often only 0.15mm or less. Because from the perspective of affecting the use time of color steel plates, the thickness of the substrate is very important. Some manufacturers make changes in the coating or coating of the substrate and the color steel plate. They reduce the thickness of the substrate, but increase the thickness of the peritoneum to reduce the production cost of the color steel plate, which greatly reduces the service life of the
color steel sheet.
2. Observe the leakage edge of the color steel plate
When I get a color steel plate, I first observe whether the exposed steel of the color steel plate, such as the section, is finely crystallized, and whether it is gray, dark, or impurity. If the cut surface is a fine crystal, the quality is relatively superior.
3. Listen to the sound
Tap the color steel plate with your finger or with a hard object. If the material of the color steel plate is poor, the sound will be dull and the metal sound is not obvious. The metal sound of the color steel plate with better material is louder and crisper.
4. Check the quality certificate of the color steel plate
Whether there are inspection standards of relevant departments. If possible, try to visit the manufacturer of the color steel plate on the spot. See how the business environment is, whether it is formal or not. Find out what the reputation of this company is like in the market.
5. Look at the price
Everything is worth every penny. When we compare the quality of color steel plates, price is one aspect, but don't pay too much attention to price. If the price of a color steel plate is much lower than others, then we should pay attention.
