Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates
The edge seam defect is a common defect in hot rolling heavy plates. It can be improved by optimizing the corner shapes of slabs. Based on a numerical analysis of the effects of the slab corner shape on the temperature distribution after the slab’s exit from the heating furnace, three rolling method...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/11/1984 |
| _version_ | 1827644189103357952 |
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| author | Minglin Wang Hui Zhang Wenbo Zhao Heping Liu Xuebing Wang |
| author_facet | Minglin Wang Hui Zhang Wenbo Zhao Heping Liu Xuebing Wang |
| author_sort | Minglin Wang |
| collection | DOAJ |
| description | The edge seam defect is a common defect in hot rolling heavy plates. It can be improved by optimizing the corner shapes of slabs. Based on a numerical analysis of the effects of the slab corner shape on the temperature distribution after the slab’s exit from the heating furnace, three rolling methods are proposed for controlling the two-chamfered slab corner shape. The stress and deformation of the corner of the slab during the two-chamfered rolling process are investigated using a numerical simulation. The results show that a two-chamfered shape slab has the smallest temperature drop during the cooling process, and the slab corner can maintain higher temperature and uniformity, which is beneficial for controlling the deformation during the rolling process. Among the three kinds of two-chamfered rolling methods, frontal rolling using a two-roller has the smallest rolling force and rolling resistance to the casting machine, followed by horizontal rolling and then vertical rolling, which has the largest. The favorable slab corner in a two-chamfered shape can be obtained by frontal rolling using a two-roller. Industrial trials confirm that an edge seam defect rate of less than 5% in heavy plates can be achieved under the condition of a large broadside ratio. |
| first_indexed | 2024-03-09T18:09:27Z |
| format | Article |
| id | doaj.art-f9c2e3bef70d48f5938263548d46165a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T18:09:27Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-f9c2e3bef70d48f5938263548d46165a2023-11-24T09:14:59ZengMDPI AGMetals2075-47012022-11-011211198410.3390/met12111984Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy PlatesMinglin Wang0Hui Zhang1Wenbo Zhao2Heping Liu3Xuebing Wang4National Engineering and Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, ChinaNational Engineering and Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, ChinaNational Engineering and Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, ChinaMaterial Digital R&D Center, China Iron and Steel Research Institute Group, Beijing 100081, ChinaNational Engineering and Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, ChinaThe edge seam defect is a common defect in hot rolling heavy plates. It can be improved by optimizing the corner shapes of slabs. Based on a numerical analysis of the effects of the slab corner shape on the temperature distribution after the slab’s exit from the heating furnace, three rolling methods are proposed for controlling the two-chamfered slab corner shape. The stress and deformation of the corner of the slab during the two-chamfered rolling process are investigated using a numerical simulation. The results show that a two-chamfered shape slab has the smallest temperature drop during the cooling process, and the slab corner can maintain higher temperature and uniformity, which is beneficial for controlling the deformation during the rolling process. Among the three kinds of two-chamfered rolling methods, frontal rolling using a two-roller has the smallest rolling force and rolling resistance to the casting machine, followed by horizontal rolling and then vertical rolling, which has the largest. The favorable slab corner in a two-chamfered shape can be obtained by frontal rolling using a two-roller. Industrial trials confirm that an edge seam defect rate of less than 5% in heavy plates can be achieved under the condition of a large broadside ratio.https://www.mdpi.com/2075-4701/12/11/1984edge seam defecttwo-chamfered methodslab corner shapeslab corner temperaturerolling deformationnumerical simulation |
| spellingShingle | Minglin Wang Hui Zhang Wenbo Zhao Heping Liu Xuebing Wang Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates Metals edge seam defect two-chamfered method slab corner shape slab corner temperature rolling deformation numerical simulation |
| title | Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates |
| title_full | Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates |
| title_fullStr | Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates |
| title_full_unstemmed | Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates |
| title_short | Application of Optimizing Slab Corner Shapes to Reduce Edge Seam Defect on Heavy Plates |
| title_sort | application of optimizing slab corner shapes to reduce edge seam defect on heavy plates |
| topic | edge seam defect two-chamfered method slab corner shape slab corner temperature rolling deformation numerical simulation |
| url | https://www.mdpi.com/2075-4701/12/11/1984 |
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