Molds & Tooling
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TPE Hot Runner
Fenómeno del problema
Burnt spots at the gate of TPE hot runner molds
Análisis de la causa
Material retained in hot runner dead corners degrades; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry information and should be confirmed first during troubleshooting
Solución
Hot runner dead-corner-free design; precise temperature calibration; lower the temperature at shutdown; 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
Conclusión clave
TPE hot runner prevents dead corners; after confirming effectiveness, solidify 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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