6A02 The surface of aluminum plate products has dirt or shrinkage of ingot components. 6A02 aluminum plate products have a lot of shrinkage floating on the surface, 6A02 aluminum plate products deal with uneven or rational or uniform treatment effect is not very good, 6A02 aluminum plate products have the recommended amount of hard metal particles, during the extrusion process , these shrinkage floating matter or hard metal particles adhere to the surface of the working belt or damage the working belt, and finally scratch the surface of 6A02 aluminum plate products;

1. Manual dragging of 6A02 aluminum plate products lying on the bed caused abrasions.

2. When the fork rod sends the aluminum profile from the feeding rail to the swing bed, the 6A02 aluminum plate products are injured due to the speed too fast.

3. Dirt is carried in the die or working process of the mold shell, and the working belt strength of the mold shell is low. When it is squeezed, the working belt surface will be damaged and the aluminum profile will be scratched.

4. There are exposed metal materials or high-purity graphite strips on the feeding rail or the bedside, which will scratch the surface of the aluminum profile when it comes into contact with 6A02 aluminum plate products.

5.6A02 Aluminum plate products are rubbed or squeezed against each other during the transportation process, resulting in damage. In addition, in the transportation process, if the outer packaging of 6A02 aluminum plate products is not good, it will also damage its appearance.