Molding Process
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Glass Fibre surface stress whitening
Fenómeno del problema
Glass Fibre product stressed region surface stress whitening, affecting appearance and strength
Análisis de la causa
Glass Fibre under local stress molecular orientation causes refractive index difference and whitening; product internal stress concentration region
Solución
1) Reduce injection speed to reduce orientation stress; 2) annealing treatment 80°C/2h to release stress; 3) product design avoids stress concentration sharp corners
Conclusión clave
Stress whitening is caused by orientation and internal stress; reducing orientation and annealing are key
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