Molds & Tooling
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Optical Defects of PSU Transparent Parts
Fenómeno do problema
PSU transparent products show optical distortion and decreased transmittance; internal stress marks and micro-defects affect optical performance.
Análise das causas
Transparency is a characteristic of PSU, but internal stress and micro-bubbles destroy optical uniformity; replication of mold surface condition has an effect; uneven cooling produces density gradients.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based solely on experience
Solução
①Low-stress process and high mold temperature; ②Optical-grade mold polishing; ③Optimize cooling uniformity; ④Include optical performance testing in inspection.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
The optical quality of PSU transparent parts is a synthesis of stress and surface management; optical testing is stricter than appearance inspection; process stability guarantees consistency.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
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