As the use rate of pre painted steel coil becomes more and more common, the quality of manhole covers is also getting higher and higher. Because of its characteristics and advantages, it is widely used by everyone. In order for everyone to better apply, let's introduce the explosion paint of color-coated plates. What are the reasons?
When the weather became cold, many different types of pre painted steel coil showed paint bursts. The temperature of the pre painted steel coil is required to be checked every two hours during the production process. The root cause is that the staff did not track the temperature of the passivation plate in time. Especially in winter, the temperature change is relatively large within 2 hours, which will cause the color time to be prolonged, and the shape of the screen will be shaved.
In the production process of pre painted steel coil, the dust on the exit inspection mirror and the dust on the roller directly affect the surface quality of the pigments. These pigments may not appear for the first time, but they will appear in the sun. When slotting, add passivation solution first, and then add water. The relative density of the passivation solution exceeds the relative density of water, and the relative density of the passivation solution exceeds the relative density of water. The raw materials are not uniform, and the adhesion between the passivation layer and the substrate is not good, which makes the surface of the color coating present. very easy.
The above is about the reasons for the explosion of paint on the pre painted steel coil. You can choose the appropriate method according to the actual construction requirements to avoid unnecessary losses caused by blind operation. If you have other questions, you can pay attention to our website. We will update the website articles regularly. ,I hope to be helpful.
