First of all, we need to understand what sandpaper texture is. Sandpaper texture refers to the texture caused by sandpaper friction during the polishing process of the mold surface. This texture not only affects the appearance of the mold, but also affects the surface roughness of the mold and reduces the polishing quality of the mold. So, how to solve the problem of sandpaper pattern?
First: Before polishing the mold, we need to clean the oil and impurities on the surface of the mold. At the same time, it is also necessary to check whether the surface of the mold is flat, whether there are obvious scratches and dents, and if there is a problem, it needs to be repaired. Avoid more scratches during the sanding process due to uneven surfaces.
Second: in the process of mold polishing, it is necessary to choose sandpaper of different specifications according to the surface roughness of the mold. For molds with rough surfaces, sanding with coarse sandpaper is used first, and then gradually upgrading the sandpaper specifications from coarse to fine until the desired gloss can be achieved visually. For smoother surfaces, you can sand directly with fine sandpaper and gradually upgrade the specifications as needed. At the same time, during the grinding process, the surface of the mold should always be kept flat to avoid excessive grinding and damage to the surface of the mold.
Thirdly: When sanding the lines that cannot be eliminated with sandpaper, you can use oil stones for sanding. When sanding with a stone stone, start by grinding gently, then gradually increase the pressure and grinding time until the lines disappear.
In short, sandpaper lines are very common in the polishing process, choose the right polishing tools and polishing methods, pay more attention to polishing details, sandpaper patterns are still easy to remove.