Material Analysis
15 visualizaciones
PPO Low-Warpage Grades for Precision Parts
Fenómeno del problema
[Problem Phenomenon] Warpage of precision structural parts exceeds the standard, and standard PPO grades are difficult to meet the requirements
Análisis de la causa
PPO has low-warpage grades (HS2000 containing 20% filler) designed specifically for warpage-sensitive parts; the low shrinkage of 0.2-0.7% as a basis combined with filler further stabilizes dimensions
Solución
Select low-warpage filled grades for warpage-sensitive parts; use mold flow analysis to assist gate design; verify first-article flatness by CMM; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
PPO low-warpage grades are the answer for precision parts, and HS2000-type grades are optional; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!