Molds & Tooling
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Product incomplete crystallization, poor performance
Fenómeno del problema
The product appears amber translucent (amorphous), and mechanical strength and chemical resistance are far lower than expected
Análisis de la causa
Mold temperature <180°C causes the skin layer to quench forming amorphous structure; cooling rate in the cavity too fast, molecular chains have no time to arrange orderly
Solución
Strictly maintain the mold temperature at 180-200°C using an oil temperature control system; product post-crystallization heat treatment at 200°C/2h to promote full crystallization (up to 30-40% crystallinity)
Conclusión clave
PEEK crystallinity needs to reach more than 30% to fully reflect its high performance
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