Molds & Tooling
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POM first article temperature confirmation
Fenómeno do problema
Production starts immediately after machine start-up, and the first few shots are out of tolerance
Análise das causas
At start-up, the mold temperature and material temperature are not balanced, and the process conditions are not in place; 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
Solução
Wait 10 minutes for the temperature to stabilize after start-up; confirm the measured melt temperature and mold temperature reach the standard; mass production after full inspection of the first article; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
First article confirmation after temperature balance is the threshold for mass production; 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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