Type of Defect:  Wave around gate (devitrifying)

Cause	Countermeasure
Unsuitable injection speed	Slow injection speed
Unsuitable pressure holding interval	Shorten pressure holding interval to avoid the presence of molten materials in the cavity after filling
Unsuitable mold temperature	Raise mold temperature
Unsuitable gate dimension	Enlarge the gate size

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