Injection Molding
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PETG '2079851475616104452 excessive gate marks
Problem Phenomenon
Excessive marks are left at the gate break of the product, affecting appearance.
Cause Analysis
Improper gate design (submarine gate angle large or side gate cross-section too thick), the break during demolding leaves a large mark.
Solution
Optimize gate type and size (pin point gate or valve gate); adjust the gate break angle.
Key Takeaway
PETG gate marks are an important concern for appearance quality.
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