Injection Molding
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Glass Fibre injection molded product unstable weight
Problem Phenomenon
Glass Fibre injection molded product weight fluctuates ±3%, exceeding ±1% accuracy requirement
Cause Analysis
Shot amount unstable, screw back position inconsistent; holding time fluctuates; feed amount unstable; Glass Fibre density varies ±2%
Solution
1) Displacement sensor precisely controls screw back position; 2) stabilize holding time and pressure; 3) V/P switchover point precisely set; 4) inspect each batch density difference
Key Takeaway
Product weight stability depends on shot amount accuracy and holding consistency
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