Type of Defect:  Burning (whole or partial discoloration)

Cause	Countermeasure
Unsuitable cylinder temperature	Lower the cylinder temperature
Partial retention occuring in the cylinder	Eliminate dead corners
Seepage into the screw joint between cylinder and nozzle or other parts	Eliminate gap around screw joint
Inclusion of check valve and ring	Eliminate the material detention
Decomposition by insufficient drying of pellets	Perform predrying as recommended
Excessive capacity of molding machine	Change to a suitable capacity machine

Return to Troubleshooting

Home   Site Map   Contact Us   Privacy Statement   Terms of Use
Company Profile   Products   Data Sheets   Product Selector   News   Technical Help   Applications

Teijin Kasei America, Inc.
Tel: (770) 346-8949