Injection Molding
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Carbon fiber reinforced PEEK narrower processing window
Fenómeno del problema
The injection conditions of CF/PEEK composite materials are more demanding than those of pure PEEK
Análisis de la causa
The extremely high thermal conductivity of carbon fiber makes the melt cool faster in the cavity; CF greatly increases the apparent viscosity of the melt; CF wears the screw and mold more severely
Solución
On the basis of pure PEEK, further increase the mold temperature (about 10°C) to compensate for carbon fiber heat conduction; select screws and mold steels with higher wear resistance grades; enlarge gate and runner dimensions
Conclusión clave
CF reinforcement expands the performance of PEEK but also greatly increases processing difficulty
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