|
Cause |
Countermeasure |
| Insufficient taper in core and cavity |
Add release taper |
|
Unsuitable cycle |
Cooling time is too short or extremely long |
| Unsuitable cylinder temperature |
Lower molding temperature to reasonable value |
|
Unsuitable position and number of knock pins |
Examine reasonable position and number |
| Vacuum with molded products in mold release from core |
Often occurs when the surface of the core is smooth. Eject with plate not with pin, and add vent pin |
|
Unsuitable mold temperature |
Lower the mold temperature and lengthen the cycle |
| Injection pressure is too high and filling capacity is too large |
Reduce injection pressure and reduce weight of raw materials |
