Injection Blow Injection Blow Molding (IBM)
SURFACE DEFECTS
Recommended Actions
Possible Causes Possible Solutions
HOT SPOTS
Improper temperature control or cooling
• Increase the core rod temperature.
• Reduce the melt temperature.
• Lower the parison mold temperature in hot area.
• Verify the mold temperature controller is operating correctly.
• Localize external cooling on core rod to hot area.
- Possible Causes Possible Solutions
- HOT SPOTS
- Improper temperature control or cooling
- Increase the core rod temperature.
- Reduce the melt temperature.
- Lower the parison mold temperature in hot area.
- Verify the mold temperature controller is operating correctly.
- Localize external cooling on core rod to hot area.
Related Knowledge
Source
Imported from Molding Defects All Platforms spreadsheet