The following steps can be followed to repair and adjust the mold according to the wear condition:
1. Wear assessment
- First, conduct a comprehensive inspection and measurement of the mold to determine the location and degree of wear. You can use measuring tools such as calipers and micrometers to measure the changes in key dimensions.
- Observe the wear marks on the mold surface, such as scratches, pits, deformation, etc., to determine the type and cause of wear.
2. Formulate a repair plan
- According to the results of the wear assessment, formulate a corresponding repair plan. If the wear is light, grinding, polishing and other methods can be used to remove minor surface damage.
- For more serious wear, repair welding, surfacing and other operations may be required to increase the material of the worn parts.
- If the dimensional accuracy of the mold is affected, it may be necessary to reprocess or trim. ,
3. Repair operation
- Grinding and polishing: Use sandpaper, grinding wheel or polishing tools of appropriate grit to grind and polish the worn surface to restore it to smoothness.
- Repair welding and surfacing: Select appropriate welding materials and processes to repair or surfacing the worn parts. Heat treatment is required after welding to eliminate welding stress and improve the performance of the welding part.
- Reprocessing: For molds with large dimensional deviations, milling machines, lathes and other processing equipment can be used for reprocessing to restore their dimensional accuracy.
4. Adjust the mold
- After the repair is completed, assemble and adjust the mold.
- Adjust the extrusion pressure, temperature and other process parameters of the mold to ensure that the repaired mold can normally produce qualified products.
5. Test and verification
- After the repair and adjustment are completed, conduct trial production to observe whether the quality and dimensional accuracy of the profile meet the standards.
- Test and analyze the trial-produced products. If there are problems, further fine-tune the mold until it meets the production requirements.
6. Record and summarize
- Record the wear of the mold, the repair process, the adjustment method and the trial production results in detail to provide a reference for future maintenance and repair work.
- Summarize lessons learned。
