Processing Machinery
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PC Glass Fiber Reinforced Warpage
Fenómeno del problema
Glass fiber reinforced PC parts have poor dimensional accuracy and obvious warpage, with surface floating fibers and poor gloss
Análisis de la causa
Glass fiber orientation makes the shrinkage in the flow direction much smaller than in the perpendicular direction, and anisotropy causes warpage; fibers floating to the surface cause floating fibers; fibers also wear the equipment and reduce the impact toughness
Solución
①Position the gate so that the fibers orient along the main stress direction; ②increase the mold temperature and holding pressure to improve the surface quality; ③use wear-resistant steel for the mold and regularly check screw wear; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Glass fiber reinforced PC trades toughness for rigidity; orientation design, surface management and equipment protection are the three supporting tasks; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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