Molds & Tooling
4 görüntüleme
PMMA Mold Temperature Uniformity
Sorun Belirtisi
Optical distortion of PMMA lenses is inconsistent across regions
Neden Analizi
Uneven cavity temperature causes different shrinkage and internal stress at various places, and distortion distribution on the optical surface is uneven; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based on experience alone.
Çözüm
Water channel uniformization design; cavity surface temperature difference controlled at ±2℃; regular temperature measurement of optical molds; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.; change only one variable at a time and record parameter changes to facilitate locating effective measures.
Temel Çıkarım
Mold temperature uniformity of optical parts is controlled at ±2℃; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.; include this case in the defect archive as a troubleshooting reference for similar future problems.
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