Research Article
Quality Prediction and Control of Reducing Pipe Based on EOS-ELM-RPLS Mathematics Modeling Method
Table 1
Size table of reducing tube.
| Ser. number | External diameter of shell | Wall thickness of shell | External diameter of finished pipe | Wall thickness of finished pipe | Number of variable stands | Number of total stands |
| 1 | 152.5 | 4.25 | 42.2 | 3.56 | 18 | 24 | 2 | 152.5 | 10.25 | 70 | 10.25 | 12 | 18 | 3 | 152.5 | 7.75 | 139.7 | 7.72 | 12 | 16 | 4 | 152.5 | 6 | 73.03 | 5.51 | 12 | 12 | 5 | 152.5 | 9.75 | 114.3 | 10 | 10 | 16 | 6 | 152.5 | 25 | 121 | 25 | 10 | 12 | 7 | 152.5 | 6 | 139.7 | 6.2 | 10 | 10 |
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