Material Analysis
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PEEK Continuous Use Temperature and RTI
Fenómeno del problema
【Problem Phenomenon】PEEK parts degrade in performance faster than expected under long-term 260℃ working conditions
Análisis de la causa
The upper limit of PEEK continuous use temperature is about 260℃; RTI electrical 260℃/mechanical impact 180℃/mechanical strength 240℃; long-term operation near the upper limit accelerates aging, so a margin must be left in material selection
Solución
Design according to RTI sub-item indicators rather than a general upper limit; perform thermal aging life assessment for long-term high-temperature parts; for working conditions close to the upper limit, consider higher-temperature materials such as PEKK or PI
Conclusión clave
260℃ is the PEEK ceiling, not the working point; design with sub-item RTI plus margin; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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