Processing Machinery
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COC Optical Defects
Problem Phenomenon
COC optical defects, bubbles, impurities and stress marks.
Cause Analysis
COC optical defects; bubbles; impurities; stress marks; birefringence; transparency; inspection and screening.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solution
①Defect-free process; ②impurity prevention and control; ③stress management; ④optical inspection; ⑤screening and rejection.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
Prevention and control of COC optical defects is the quality core; whole-process management; screening ensures delivery.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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