How to polish the bottomless electroplating mould of plastic products

The common polishing process of molds is: first polishing with coarse oilstone, then polishing with fine oilstone, then polishing with coarse diamond polishing paste (W5 granularity), and finally polishing with polishing paste (W3.5 granularity) to the mirror surface. Pay attention to grinding and polishing. Before each fine oilstone and polishing paste polishing, it is necessary to ensure that there are no scratches and knife marks on the surface of the mold before polishing with fine oilstone and polishing paste. The advantages of this grinding and polishing are high efficiency and good polishing effect. If fine oilstone and polishing paste are directly used for polishing, the polishing efficiency of fine oilstone and polishing paste is much lower than that of coarse oilstone and polishing paste. And some scratches are difficult to polish off with fine oilstone and polishing paste. Therefore, the grinding and polishing of the mold should be step by step. It seems slow to do this, but it's actually much faster.