Extrusion & Post
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PC automotive lamp lens
Problem Phenomenon
【Problem Phenomenon】Automotive lamp lenses need high transparency, heat resistance and impact resistance
Cause Analysis
PC is highly transparent (89%), heat resistant (HDT 130-140℃), and highly impact resistant, a classic material for lamp lenses; inner lens for light distribution, outer lens with weather-resistant coating
Solution
Lamp lenses select optical-grade PC; outer lens UV coating; light distribution accuracy ensured by '2079851475616104452；After adjustment, take continuous samples 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
Key Takeaway
PC is standard for lamp lenses, transparency, heat resistance and impact resistance three-in-one；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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