Injection Molding
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ABS flow mark
Fenómeno do problema
[Problem Phenomenon] ABS surface corrugated flow marks
Análise das causas
Front cold film rupture; mold temperature low and injection speed slow; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solução
Raise mold temperature and melt temperature; multi-stage injection optimization; enlarge runner and gate; 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
Conclusão principal
For ABS flow marks raise temperature and stabilize speed; 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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