Table 8
Average minimum pickling time and weight losses of hot-rolled samples annealed in CH4 or H2 combustion fumes at three different maximum temperatures.
| Atmosphere | Maximum temperature [°C] | Minimum pickling time [s] | Shot blasting weight loss [g/m2] | Pickling weight loss [g/m2] | Total weight loss (shot blasting + pickling) [g/m2] |
|---|---|---|---|---|---|
| CH4 fumes | 1080 | 90 | 22 | 62 | 84 |
| 1150 | 90 | 30 | 51 | 80 | |
| 1190 | 135 | 31 | 89 | 120 | |
| H2 fumes | 1080 | 60 | 82 | 45 | 127 |
| 1150 | 90 | 43 | 63 | 106 | |
| 1190 | 90 | 32 | 74 | 106 |
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