What are the common problems with color-coated rolls?

Precautions
Several common problems

During the use of color-coated rolls, some small problems will inevitably occur, and we must face these problems. The editor below will list in detail the results that will occur.

First, the detailed parts of the color-coated roll: 1. Scratches on the substrate

2. When making veneer products, pay attention to scratches on the back and color difference. The back is light-colored and color difference is easy to occur.

3. Scratches on the spray pipe: Mainly on the front side of the plate

4. The entrance section guide plate is scratched (mainly on the back) 5. Scratches in the curing furnace, objects in the furnace sagging (rare) and scratches on the front due to excessive tension. This usually refers to excessive tension when replacing thick materials with thin materials.

6. When unloading sheets during emergency stop or parking, the exit looper is scratched (rare)

7. The squeeze roller is scratched. Usually when the squeezing roller does not rotate

8. The exit section is scratched by foreign objects. There are foreign objects on the exit guide plate. The back of multiple fingers or scissors scratches the surface of the color plate.

9. The S roller is scratched, and the water-cooled squeeze drying effect is not good. The water is brought into the S roller, and the tension in the furnace body is too different from the tension in the outlet loop, causing the S roller to slip.

10. The plate temperature of the initial coating curing oven is not enough, the paint is not cured well, and the rocking roller sticks off the back paint before water cooling.