Zirconium and Zirconium Alloys Sheet & Plate Processing Technology |
Serial Number |
Technology |
Process Description |
1 |
ingot casting inspection |
composition reinspection, appearance inspection |
2 |
β forging |
heated in furnace under temperature of 950-980˚C, insulated for 45 to 60 min, hot forging into slab, and the final forging temperature is >500˚C |
3 |
β annealing |
heated in furnace under temperature of 1030-1050˚C, insulated for 45 to 60 min, water quenching |
4 |
milling surface |
|
5 |
α hot rolling |
heated to 750-800˚C, insulated for 30-35 min |
6 |
cold rolling to remove scales, acid pickling |
use sand blasting to remove scales, then acid pickling |
7 |
surface repair |
|
8 |
cold rolling and intermediate annealing |
intermediate annealing temperature 600-700˚C, insulated for 1h, vacuum degree 10-2-10-3 Pa |
9 |
finishing |
rolling on sendzimir mill |
10 |
degreasing cleaning |
|
11 |
final annealing |
annealing temperature 540-600˚C, insulated for 1h, vacuum degree 10-2-10-3 Pa |
12 |
inspection |
|
13 |
packing |
|