Today, China Polishing Machine manufacturers should pay […]
Today, China Polishing Machine manufacturers should pay attention to the following points when sharing sandpaper polishing for mechanical polishing:
1. Polishing with sandpaper requires the use of softwood sticks or bamboo sticks. When polishing a round or spherical surface, use a cork stick to better match the curvature of the round and spherical surfaces. The harder wood strips are like cherry wood, which is more suitable for the polishing of flat surfaces. The end of the trim strip is adjusted to match the shape of the steel surface so that the acute angle of the strip (or bamboo strip) is prevented from contacting the surface of the steel and causing deep scratches.
2. When changing to different types of sandpaper, the polishing direction should be changed from 45° to 90°, so that the striped shadow left by the polishing of the former type of sandpaper can be distinguished. Before changing the different types of sandpaper, the polished surface must be carefully wiped with 100% pure cotton and a cleaning solution such as alcohol, because small gravel left on the surface will destroy the entire polishing work. This cleaning process is equally important when polishing from sandpaper to diamond polishing. All pellets and kerosene must be completely cleaned before polishing continues.
3. To avoid scratching and burning the surface of the workpiece, special care must be taken when polishing with #1200 and #1500 sandpaper. It is, therefore, necessary to load a light load and polish the surface using a two-step polishing method. When polishing with each type of sandpaper, it should be polished twice in two different directions, and each rotation between the two directions is 45°~90°.