Processing Machinery
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PA66 warpage deformation
Fenómeno del problema
PA66 flat parts warp out of the mold, and assembly gaps exceed standard
Análisis de la causa
Large crystallization shrinkage and uneven cooling produce shrinkage differences; glass fiber orientation makes anisotropy more obvious, and flat parts are most sensitive; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
Solución
Balance cooling water circuits; multi-point gating for symmetric flow; raise mold temperature to homogenize shrinkage; use setting fixtures for assistance when necessary; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
Conclusión clave
Warpage treatment centers on cooling balance and flow symmetry; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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