Die Casting Mold Care and Preventive Maintenance
Overview
Die casting molds are precision equipment that require proper care to maintain quality and extend life. Regular maintenance improves efficiency and reduces costs.
Mold Preheating
- Preheat mold to 150-250 degrees C before production
- Use electric heating or hot oil systems
- Heat gradually to prevent thermal shock
- Verify temperature before starting
Lubrication Requirements
- Guide pins: Use high-temperature grease
- Ejector pins: Apply lubricant to prevent galling
- Slides and cores: Lubricate all moving surfaces
- Toggle mechanism: Follow lubrication schedule
Cooling System Care
- Monitor water temperature and flow rate
- Clean channels periodically to remove scale
- Use treated water to prevent buildup
- Check for leaks that affect quality
Maintenance Schedule
Daily Tasks
- Clean mold surfaces after production
- Check ejector pin function
- Inspect cooling channel flow
Periodic Tasks
- Remove and clean ejector pins
- Lubricate all moving components
- Inspect cavities for wear
- Adjust clamping force
Major Service
- Complete disassembly and cleaning
- Replace worn pins and guides
- Polish cavity surfaces
- Verify critical dimensions
Storage
- Remove all residual metal
- Apply anti-corrosion coating
- Store in dry, temperature-controlled area
