| 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 |
|