Extrusion & Post
14 visualizaciones
MP large dimensional change with temperature
Fenómeno del problema
MP product dimensions change >2% in the -20 to 60°C range
Análisis de la causa
MP thermal expansion coefficient large; crystallinity low causing high dimensional temperature sensitivity; not annealed, residual stress present
Solución
1) add rigid filler to lower the thermal expansion coefficient; 2) annealing to stabilize dimensions; 3) select a high crystallinity grade to reduce temperature sensitivity
Conclusión clave
dimensional temperature sensitivity is caused by large thermal expansion coefficient; adding filler and annealing are key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!