Molds & Tooling
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PA6 Mold Temperature 60-90°C
Fenómeno del problema
Products show uneven crystallization and poor surface gloss, or warpage after demolding and dimensional drift over time
Análisis de la causa
When the mold temperature is below 60°C, the PA6 surface layer is quenched and under-crystallized, forming a difference between the amorphous surface layer and the internal crystallization, and post-crystallization causes dimensional drift; appropriate mold temperature promotes uniform crystallization and stabilizes dimensions
Solución
①Mold temperature 60-90°C, PA66 can be 70-100°C; ②take the upper limit for thick-walled and dimensionally precise parts; ③zoned control by the mold temperature controller, with the cavity temperature difference less than 5°C
Conclusión clave
Mold temperature determines PA6 crystallization quality and dimensional stability; the fundamental cure for post-crystallization dimensional drift is to raise and equalize the mold temperature rather than post-process repair; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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