Scratches on the surface of 3A21 aluminum plate are relatively easy to occur during the processing of 3A21 aluminum plate. It is often caused by improper processing, resulting in surface damage, which seriously affects the aesthetics of 3A21 aluminum plate. However, scratches have already appeared. Let’s introduce the 3A21 aluminum plate. Surface scratch treatment method.

3A21 aluminum plate surface scratches can be dealt with, in short, there are two methods: physical and chemical: the physical method is mechanical grinding, and the details include sandblasting, wire drawing, etc. This method is generally used for deeper scratches. The chemical method generally uses chemical reagents for polishing. In short, chemical reagents are used to corrode the surface of the aluminum material. Due to the sharp edges at the scratches, the corrosion rate is fast, and the lighter scratches can be completely eliminated after chemical polishing. , The chemically polished material has a bright appearance and looks good. Generally, the two methods are used together, and the appearance of aluminum can achieve a good decorative effect.

3A21 solution to the surface scratch of aluminum plate:

1. The working belt on the 3A21 aluminum plate mold needs to be polished smoothly, whether the empty knife of the extrusion mold is sufficient, and whether the surface is smooth.

2. In the process of producing 3A21 aluminum plate, pay attention to the generation of mold lines. Once the lines are produced, the mold needs to be removed in time to stop production.