Processing Machinery
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PVDF Product Holding Pressure Management
Fenómeno del problema
Balance between sink marks and stress.
Análisis de la causa
PVDF's high shrinkage requires sufficient holding pressure; excessive holding pressure causes large stress.; 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 materials, and it should be confirmed first during troubleshooting
Solución
①Optimize holding pressure settings; ②according to the solidification time; ③staged holding pressure; ④verify the balance.; After adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability; Change only one variable at a time and record parameter changes, so as to locate effective measures
Conclusión clave
The holding pressure window must be precisely managed.; 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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