Injection Molding
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DSTDP obvious surface color difference
Fenómeno del problema
DSTDP product different parts have different color depth, color difference ΔE>5
Análisis de la causa
Color masterbatch dispersion uneven; pigment orientation during injection causing uneven color distribution; barrel temperature fluctuation causing color change
Solución
1) Color masterbatch masterbatch method to ensure uniform dispersion; 2) reduce injection speed to reduce pigment orientation; 3) stabilize barrel temperature ±2°C
Conclusión clave
Color difference is caused by uneven dispersion and orientation; masterbatch method and stable processing are key
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