Table 2: Description of the three sintering furnaces.
| Furnace | Mesh belt | Walking beam | Roller |
| Protective atmosphere | Nitrogen-hydrogen, Endothermic gas | Nitrogen- hydrogen | Nitrogen - hydrogen |
| Sintering temperature | 1120 ℃ | 1120-1250 ℃ | 1120-1250 ℃ |
| Dew point | -10 to -20 c | < -25 c | < -25 c |
| Rapid cooling | possible | difficult | possible |
| Transport system | Mesh belt | Walking beam | Roller |
| length (mm) | 2000-2500 | 2000-3000 | 1800-2400 |