New insight into relationship between casting speed and inclusion removal in the tundish
The tundish is the last refractory metallurgical reactor during the continuous casting process, and the fluid flow in the tundish is one of the key factors to control inclusion collision-coalescence and its removal. Thus, numerical method is applied to obtain the flow field, the RTD curve and the in...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423003800 |
| _version_ | 1797858728949579776 |
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| author | Changyou Ding Hong Lei Han Zhang Meng Xu Yan Zhao Qiang Li |
| author_facet | Changyou Ding Hong Lei Han Zhang Meng Xu Yan Zhao Qiang Li |
| author_sort | Changyou Ding |
| collection | DOAJ |
| description | The tundish is the last refractory metallurgical reactor during the continuous casting process, and the fluid flow in the tundish is one of the key factors to control inclusion collision-coalescence and its removal. Thus, numerical method is applied to obtain the flow field, the RTD curve and the inclusion field. Numerical results showed that the predicted RTD curve and the inclusion number density agree well with the experimental data. In the case of different fluid velocity at tundish inlet, the volume fraction of plug zone, dead zone and well-mixed zone keep unchanged, but the dimensionless tundish inclusion volume concentration, the dimensionless tundish inclusion radius and the inclusion removal ratio have the exponential relation to the fluid velocity at tundish inlet. Further, there is maximum inclusion removal rate for the specific tundish. Another interesting phenomenon is about the inclusion behavior and the characteristic time of the RTD curve. The inclusion removal ratio and the dimensionless tundish inclusion radius have the linear relation to the minimum residence time, the peak concentration time and the average residence time. |
| first_indexed | 2024-04-09T21:18:05Z |
| format | Article |
| id | doaj.art-1378d39b283c46819f4743a2af8331ec |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:18:05Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-1378d39b283c46819f4743a2af8331ec2023-03-28T06:48:47ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012354005412New insight into relationship between casting speed and inclusion removal in the tundishChangyou Ding0Hong Lei1Han Zhang2Meng Xu3Yan Zhao4Qiang Li5Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning Province, 110819 PR China; School of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning Province, 110819 PR China; School of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR China; Corresponding author.Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning Province, 110819 PR China; School of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, Liaoning Province, 110819 PR China; School of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR ChinaSchool of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR ChinaSchool of Metallurgy, Northeastern University, Shenyang, Liaoning Province, 110819, PR ChinaThe tundish is the last refractory metallurgical reactor during the continuous casting process, and the fluid flow in the tundish is one of the key factors to control inclusion collision-coalescence and its removal. Thus, numerical method is applied to obtain the flow field, the RTD curve and the inclusion field. Numerical results showed that the predicted RTD curve and the inclusion number density agree well with the experimental data. In the case of different fluid velocity at tundish inlet, the volume fraction of plug zone, dead zone and well-mixed zone keep unchanged, but the dimensionless tundish inclusion volume concentration, the dimensionless tundish inclusion radius and the inclusion removal ratio have the exponential relation to the fluid velocity at tundish inlet. Further, there is maximum inclusion removal rate for the specific tundish. Another interesting phenomenon is about the inclusion behavior and the characteristic time of the RTD curve. The inclusion removal ratio and the dimensionless tundish inclusion radius have the linear relation to the minimum residence time, the peak concentration time and the average residence time.http://www.sciencedirect.com/science/article/pii/S2238785423003800Inclusion removalInclusion collision-coalescenceRTD curveTundishOpenFOAM |
| spellingShingle | Changyou Ding Hong Lei Han Zhang Meng Xu Yan Zhao Qiang Li New insight into relationship between casting speed and inclusion removal in the tundish Journal of Materials Research and Technology Inclusion removal Inclusion collision-coalescence RTD curve Tundish OpenFOAM |
| title | New insight into relationship between casting speed and inclusion removal in the tundish |
| title_full | New insight into relationship between casting speed and inclusion removal in the tundish |
| title_fullStr | New insight into relationship between casting speed and inclusion removal in the tundish |
| title_full_unstemmed | New insight into relationship between casting speed and inclusion removal in the tundish |
| title_short | New insight into relationship between casting speed and inclusion removal in the tundish |
| title_sort | new insight into relationship between casting speed and inclusion removal in the tundish |
| topic | Inclusion removal Inclusion collision-coalescence RTD curve Tundish OpenFOAM |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423003800 |
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