Molds & Tooling
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PBT Warpage Deformation Troubleshooting
Fenómeno do problema
The product warps and deforms; the troubleshooting directions for pure material and glass fiber material are different
Análise das causas
Pure PBT warpage stems from uneven cooling and crystallization differences; glass fiber PBT warpage stems from fiber orientation anisotropy; gate shape and position and uneven wall thickness are common inducements
Solução
①For pure material optimize cooling uniformity; ②For glass fiber material optimize gate and fiber orientation; ③Design for uniform wall thickness; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PBT warpage troubleshooting first distinguishes pure material from glass fiber; uneven cooling and fiber orientation are two different rectification routes; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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