Molding Process
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PEI Creep Resistance Under High Temperature and Stress
Fenómeno do problema
PEI's creep behavior appears under high temperature and high stress levels; dimensions change under long-term load.
Análise das causas
PEI has creep resistance under high temperature and stress levels, but extreme conditions still need consideration; apparent modulus changes; design stress and temperature limits; long-term data support.
Solução
①Design stress and temperature according to creep data; ②carefully evaluate high temperature and high stress; ③track long-term deformation; ④set safety factors reasonably.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
PEI creep resistance is a relative advantage; extreme conditions still need data; long-term tracking verifies the design.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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