Mold polishing has two purposes; one is to increase the smoothness of the mold, so that the surface of the product from the mold is smooth and beautiful, and the other is to make the mold easy to release, so that the plastic will not be stuck on the mold and cannot be taken off. Mastering a reasonable polishing method can improve the quality and service life of the mold, thereby improving product quality. So, what aspects should we pay attention to in the mold polishing process?

1. Mold polishing generally uses coarse oilstone to rough the surface of the mold to remove the knife marks left on the surface during mold processing, and then use fine oilstone to remove the traces left by the previous coarse oilstone polishing, and finally use polishing paste or abrasive paste to perform final polishing and polishing on the surface of the mold cavity, so as to achieve a bright mirror-like effect. If you use an ultrasonic polishing machine, you can greatly improve work efficiency and save a lot of time.
2. If you want to get a perfect polishing effect, the materials used (sandpaper, oilstone, polishing paste, etc.) must be high-quality. The sandpaper and oilstone used for mold polishing are imported from abroad Yes, it is not only wear-resistant, but also the surface of the mold is very smooth.

3. When polishing round or spherical surfaces, it is necessary to use hardwood strips or cork sticks to assist. The softwood sticks are mainly used to polish spherical or curved molds, while the hardwood strips are used to assist in polishing flat surfaces. To prevent scratches on the mold surface.

Processing accuracy, shape accuracy and position accuracy of the mold during polishing.