Aluminum profile extrusion press machine spare part billet container.
Heating the extrusion container: After a new extrusion container is assembled, it must be heated from a cold state to the operating temperature. To avoid thermal stresses caused by uneven heating—which could lead to cracking or even structural failure—gradient heating is required; the heating schedule is provided as below:
| Heating temperature/ ℃ | 200 | 250 | 300 | 350 | 400 | 420 |
|---|---|---|---|---|---|---|
| Holding time / h | 4 | 4～6 | 6～8 | 8～10 | 10～12 | 12～14 |
