1. Get rid of the mold core release agent, high temperature air oxide layer and other attachments;
2. Check the injured part of the abrasive tool;
3. Grinding and polishing the damaged parts. Repairing;
4. When repairing, pay attention to the repair of lines, surfaces, slots, etc. The line is not curved; the surface can be vertical; the notch should be smooth;
5. For grinding and polishing after repair, it is recommended to use a fully automatic polishing machine. If the abrasive tool is not combined, use a grinding and polishing ball to polish and polish.
