It means that excess plastic is present on the mold parting or ejector part.
Causes:
(1) Insufficient clamping force
(2) The mold has defects
(3) The molding conditions are unreasonable
(4) Improper design of the exhaust system
Remedies:
Mold design:
(1) Reasonably design the mold to ensure that the mold can be closed when the mold is closed
(2) Check the size of the exhaust port
(3) Cleaning the mold surface
Machine: Set the machine of the appropriate size process:
(1) Increase the injection time and reduce the injection speed
(2) Reduce the barrel temperature and nozzle temperature
(3) Reduce the injection pressure and pressure
