Molds & Tooling
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Glass Fibre product twist deformation
Problem Phenomenon
Glass Fibre products twist 2-3°/100mm along the axis
Cause Analysis
asymmetric cooling causes shrinkage differences on each surface, producing twist torque; gate position produces asymmetric flow orientation
Solution
1) symmetric cooling design to ensure uniformity on all surfaces; 2) symmetric gate arrangement; 3) annealing to release twist stress
Key Takeaway
twist deformation is caused by asymmetric cooling; symmetric cooling is key
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