Molds & Tooling
8 visualizaciones
Internal Shrinkage Voids of CMC
Fenómeno del problema
Shrinkage voids of 0.5-2mm diameter in the center of thick-walled CMC products
Análisis de la causa
After cooling, the interior of the thick-walled area shrinks, but the surface has solidified and cannot be fed; holding time is insufficient and the gate freezes prematurely
Solución
1)Extend holding time until the gate is completely frozen; 2)Increase gate size to delay freezing; 3)Product design to reduce wall thickness differences
Conclusión clave
Shrinkage voids are caused by thick-wall shrinkage and insufficient holding; extending holding is the key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!