Molds & Tooling
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PC Gate Mark Whitening
Problembeschreibung
[Problem Phenomenon] The PC gate cut area whitens
Ursachenanalyse
Shear stress concentration in the gate area; PC's brittle cut surface whitens; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Lösung
Open the gate on a non-appearance surface; sharp trimming; submarine pinpoint gate; 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
Wichtigste Erkenntnis
PC gate marks rely on position plus sharp trimming; 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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