Molds & Tooling
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PA12 Product Flash
Problem Phenomenon
Flash at the parting line.
Cause Analysis
PA12 has good flowability and low viscosity, easy to penetrate into gaps; insufficient clamping or mold wear.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience
Solution
①Check clamping force; ②repair parting line; ③reduce pressure; ④repair wear.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; Change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Distinguish flash between clamping and wear.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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