1. Clean all metal filings and deposits from the mold to reveal its true color.
2. Carefully inspect the mold for any defects, referring to the last die-cast product sent for repair. Check for any strain, sticking, dents, or chipping; any bent or broken small cores; any improperly inserted movable cores; any broken push rods or changes in push rod length; any misaligned inserts; or any loose fastening bolts. Mold Expert WeChat: mujudaren Determine whether to repair or replace based on the extent of the damage.
3. For minor strains on the casting, such as cavity collapse, cracks, or chipping, partial welding repairs may be performed. Welding repairs should strictly adhere to the welding repair process; otherwise, the mold life will be significantly reduced. These defects are more serious on smaller molded parts, potentially leading to mold damage.
4. For larger molded parts with severe surface collapse, cracks, or chipping, partial welding repairs may be performed. Welding repairs should strictly adhere to the welding repair process; otherwise, the mold life will be significantly reduced. The above failures are more serious with smaller molded parts, or may damage the mold.
5. Sliding parts such as core pullers and guides should be thoroughly cleaned, carefully inspected, and repaired. Relubricate with high-temperature grease before assembly.
6. If a hydraulic core puller is used, repair the hydraulic system and the mold simultaneously. When repairing the hydraulic system, pay special attention to cleanliness and prevent contamination, as this will contaminate the entire die-casting machine's hydraulic system.
7. If a mold malfunctions or is damaged during production, a repair plan should be determined based on the specific situation. If necessary, perform a comprehensive repair as described above.
8. After the mold has been repaired and maintained, apply rust-proof treatment to the molding surface, parting surface, and mounting surface. Close and secure the mold, and place it on a pad in the orientation of the mold on the machine. Place the mold accessories with the mold.
