Injection Molding
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PP Injection Part Metering Fluctuation
Fenómeno del problema
Plasticizing time varies long and short; back pressure is unstable.
Análisis de la causa
Poor feeding (bridging), high pulverized material ratio, or high hopper temperature cause screw conveying efficiency fluctuation.
Solución
①Cool the hopper throat; ②control pulverized material ratio and particle size; ③check the feed opening; ④stabilize drying temperature.
Conclusión clave
For unstable plasticization, check feeding first.
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