Extrusion & Post
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PESU Heat Deflection Temperature
Problem Phenomenon
PESU high-temperature application heat deflection of 200℃, but long-term performance and creep evaluation.
Cause Analysis
PESU heat deflection temperature of 200℃ (1.8MPa annealed); high-temperature mechanical property retention; creep resistance; long-term thermal aging; application boundaries.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Select materials according to heat deflection temperature; ②long-term performance verification; ③creep data; ④aging tests.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PESU high-temperature performance is the core advantage; long-term verification ensures reliability; data supports design.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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