Material Drying
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PPO Display Device Parts
Problem Phenomenon
[Problem Phenomenon] Internal structural parts of display devices require heat resistance and low warpage
Cause Analysis
PPX7110 is used for electronic and electrical equipment, display parts and infrastructure: low warpage and low creep, hydrolysis and dimensional stability; large-size parts have good flatness; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Select PPX low-warpage grades for display structural parts; use mold flow to prevent warpage for large flat parts; check creep under long-term load; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
For large flat parts of display devices, PPX's low warpage and low creep are the right match; 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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