Extrusion & Post
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Glass Fibre extrusion unstable feeding
Problem Phenomenon
Glass Fibre extrusion feed amount fluctuates ±15%, causing unstable extrusion pressure and product dimensions
Cause Analysis
Glass Fibre pellet shape irregular causes unstable feed screw fill rate; bridging or voids in hopper; feed screw design unsuitable
Solution
1) Use loss-in-weight feeder to precisely control feed amount; 2) install vibrator on hopper to prevent bridging; 3) granulate Glass Fibre to 2-3mm uniform particle size; 4) change feed screw to dedicated design
Key Takeaway
Unstable feeding is caused by pellet characteristics; loss-in-weight feeding and anti-bridging are the core
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