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Problem & Solution

Practical answers to common plastic material challenges

1506 questions
Q
HDPE injection molded product yellowing
A
Yellowing = heat history exceeding the standard.
Injection Molding HDPE; yellowing; degradation; melt temperature; antioxidant
Q
HDPE injection molded product sink marks - thick-walled type
A
For thick-wall sink marks, structural material reduction is prioritized.
Injection Molding HDPE; '2079851475616104452; sink mark; thick wall; material reduction
Q
HDPE injection molded product warpage — ejection-induced
A
Ejection deformation = insufficient cooling + uneven ejection.
Injection Molding HDPE; '2079851475616104452; ejection deformation; cooling; ejector pins
Q
HDPE '2079851475616104452 mold sticking
A
Mold sticking = holding force management.
Injection Molding HDPE; '2079851475616104452; mold sticking; holding force; draft angle
Q
HDPE injection molded product color fading
A
For color fading, check the three properties: dispersion, temperature resistance, light fastness.
Injection Molding HDPE; color difference; color masterbatch; temperature resistance; light fastness
Q
HDPE injection molded product surface flow marks
A
Flow marks = a front management problem.
Injection Molding HDPE; '2079851475616104452; flow mark; mold temperature; speed curve
Q
HDPE injection molded product melt temperature unevenness
A
Melt uniformity relies on back pressure and screw mixing.
Injection Molding HDPE; '2079851475616104452; melt unevenness; back pressure; mixing
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