Injection Molding
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ABS flash
Problem Phenomenon
[Problem Phenomenon] ABS parting line flash, high trimming cost
Cause Analysis
Injection pressure too high, insufficient clamping, parting line wear, venting too deep; ABS has good fluidity and easily overflows; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Reduce injection pressure and holding pressure; verify clamping force; repair parting line; check venting depth; after adjustment, continuously sample to verify the effect, resume mass production only after confirming stability; change only one variable each time and record parameter changes to facilitate locating effective measures
Key Takeaway
For ABS flash reduce pressure first, clamping and parting line checked afterward; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later
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