Processing Machinery
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POM precision gear
Fenómeno do problema
POM gear transmission accuracy drifts with temperature changes
Análise das causas
POM has a large thermal expansion coefficient, temperature changes cause the tooth flank clearance to change, and transmission accuracy is affected; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Check the clearance of precision transmission according to the working temperature range; mold temperature above 90°C ensures crystallization stability; consider metal gears for high-precision occasions; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
POM gear accuracy must be checked according to the temperature range; 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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