Injection Molding
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Unstable weight of PU injection molded products
Problembeschreibung
Weight of PU injection molded products fluctuates ±3%, exceeding the ±1% precision requirement
Ursachenanalyse
Unstable shot volume, inconsistent screw back position; holding time fluctuation; unstable feed amount; PU density change ±2%
Lösung
1) Displacement sensor precisely controls screw back position; 2) Stabilize holding time and pressure; 3) Precisely set V/P switchover point; 4) Inspect density differences between batches
Wichtigste Erkenntnis
Product weight stability depends on shot volume precision and holding consistency
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