Processing Machinery
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PC vs PMMA selection
Problem Phenomenon
【Problem Phenomenon】Transparent parts choosing between PC and PMMA
Cause Analysis
PC has excellent impact resistance and heat resistance but low surface hardness and average weather resistance; PMMA has high hardness and better optics but is brittle; divided by impact resistance and surface hardness needs；During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
Choose PC for impact resistance and heat resistance; choose PMMA for high hardness and optics; PMMA better for outdoor weather resistance；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PC versus PMMA, impact resistance versus hardness and optics；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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