Molds & Tooling
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PPO Glass Fiber Grade Warpage
Fenómeno do problema
[Problem Phenomenon] Warpage of glass fiber reinforced PPO products, poor dimensional assembly
Análise das causas
Fiber orientation makes shrinkage anisotropic, and gate position determines the orientation distribution; uneven cooling superimposed with orientation differences causes warpage; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Optimize gate position to homogenize fiber orientation; uniform mold temperature; use low-warpage grades (HS2000, etc.) for warpage-sensitive parts; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
The root of PPO glass fiber warpage is orientation, and gate design is the first adjustment means; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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