Molds & Tooling
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PEEK Semi-Crystalline Structure Maintenance
Problem Phenomenon
【Problem Phenomenon】PEEK product performance testing fluctuates, and tracing reveals that the cooling link had been changed
Cause Analysis
Any process fluctuation of PEEK that deviates from the semi-crystalline structure directly changes its signature properties; inconsistent mold cooling is the main cause of structural variation, and process changes must be re-validated
Solution
Regularly maintain the mold cooling system to ensure consistency; re-test crystallinity and mechanical properties after any process change; establish batch monitoring of crystallinity; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PEEK performance is anchored in the semi-crystalline structure; cooling consistency is the quality bottom line; 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 problems in the future
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