Injection Molding
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Unstable weight of EMA injection molded products
Fenómeno del problema
The weight of EMA injection molded products fluctuates ±3%, exceeding the ±1% precision requirement
Análisis de la causa
Unstable injection volume and inconsistent screw back position; holding pressure time fluctuates; unstable feeding amount; EMA density varies ±2%
Solución
1) Displacement sensor precisely controls the screw back position; 2) Stabilize holding pressure time and pressure; 3) Precisely set the V/P switchover point; 4) Inspect density differences between batches
Conclusión clave
Product weight stability depends on injection volume accuracy and holding pressure consistency
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