Injection Molding
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PLA product flash
Problem Phenomenon
Flash at the parting line.
Cause Analysis
Insufficient clamping or mold wear; excessive injection pressure.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
① Check the clamping force; ② repair the parting line; ③ reduce pressure; ④ repair 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
Flash distinguishes between clamping and wear causes.; after confirming effectiveness, fix 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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