Molds & Tooling
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PC Glass Fiber Warpage
Problem Phenomenon
[Problem Phenomenon] Glass fiber PC warpage is harder to control than ordinary PC
Cause Analysis
Fiber orientation causes shrinkage anisotropy; the gate position determines the orientation distribution; uneven cooling superimposes; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone
Solution
Optimize the gate to homogenize the fiber orientation; uniform mold temperature; low-warpage grades; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate effective measures
Key Takeaway
The root of PC glass fiber warpage is orientation, and the gate is the key; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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