Extrusion & Post
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Glass Fibre vacuum section material overflow
Fenómeno do problema
Glass Fibre extrusion vacuum section material overflow, vent hole clogged
Análise das causas
Glass Fibre melt viscosity low, overflows at vacuum section; vacuum section temperature too high, viscosity lower, aggravates overflow; vent hole design improper
Solução
1) Reduce vacuum section temperature 5-10°C to raise viscosity; 2) add baffle above vent hole to prevent overflow; 3) raise screw speed to accelerate conveying and reduce residence
Conclusão principal
Material overflow is caused by low melt viscosity; cooling and adding baffle are key
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