Injection Molding
2 visualizações
PA66 glass fiber floating fiber surface
Fenómeno do problema
Glass fiber reinforced product surface has floating fibers and is rough, and surface improvement is limited after high-speed injection
Análise das causas
The fluidity difference between glass fiber and PA66 makes fibers enrich at the surface layer; increasing injection speed can narrow the velocity difference between glass fiber and matrix and improve the surface, but the effect is limited when mold temperature is low
Solução
①Raise mold temperature to improve surface replication; ②Appropriately increase injection speed to narrow the velocity difference; ③For appearance parts, evaluate surface texture or mineral-filled substitution; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
Conclusão principal
Floating fiber treatment requires both process and material routes in parallel; high mold temperature plus velocity matching is the main line, and demanding appearance parts are more thoroughly solved from the formulation end; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!