研究了压下位置、压下率和压下量等轻压下参数对连铸板坯半宏观偏析的影响.研究结果表明,中心线偏析由相互独立的半宏观偏析点组成,半宏观偏析面积比与中心最大碳偏析比有良好的正相关关系,因此改善连铸板坯中心线偏析的关键在于降低半宏观偏析面积比.轻压下对于降低半宏观偏析面积比有重要影响.工业试验结果表明,当压下位置位于固相率大于0.75、压下率为1.2 mm/m以及压下量为4.5mm时,能够显著降低半宏观偏析面积比,从而改善连铸板坯的中心线偏析.
参考文献
| [1] | Habu Y;Itoyama S;Emi T et al.Improving Cast Structure and Centerline Segregation of Continuously Cast Slabs by Adding Steel Strip Into Mold[J].Tetsu-to-Hagane,1981,67:1498. |
| [2] | Murayama J;Ichihashi H;Ohtani H et al.The Effect of Chemical Composition on the Center Line Segregation of Con tinuous Casting Slabs[J].Tetsu-to-Hagane,1986,72:2070. |
| [3] | Preβlinger H;Mayr M;Kaltenbrunner T;Lettner J .Quan titative Assessment of Segregates in Continuously Cast Slabs by Electron Probe Microanalysis[J].STEEL RESEARCH,2002,73:149. |
| [4] | Ogibayashi S;Uchimura M;Isobe K.Improvement of Center Segregation in Continuously Cast Blooms by Soft Re duction in the Final Stage of Solidification[A].Nagoyan:ISIJ,1990:271. |
| [5] | Thome R;Harste K .Principles of Billet Soft Reduction and Consequences for Continuous Casting[J].ISIJ International,2006,46:1839. |
| [6] | MoonCH;OhKS;LeeJD et al.Effect of the Roll Surface Profile on Centerline Segregation in Soft Reduction Process[J].ISIJ International,2012,52:1266. |
| [7] | 侯自兵,成国光,饶添荣.连铸板坯中心线偏析形成机制与轻压下技术[J].钢铁,2011(11):45-48,60. |
| [8] | 吕佐明,郑晓明.连铸板坯中心偏析对钢板组织和性能的影响[J].金属世界,2009(01):20-24. |
| [9] | Takaishi S;Komai T;Noro K et al.On the Formation of Centerline Segregation in Continuous-Cast Slab[J].Tetsu-to-Hagane,1974,60:915. |
| [10] | Murao T;Kajitani T;Yamumura H et al.Simulation of the Center Line Segregation Generated by the Formation of Bridging[J].Tetsu-to-Hagane,2013,99:94. |
| [11] | Kobayashi H;Masaoka T;Suzuki M.Control of Centerline Segregation in Continuously Cast Slabs by a New Soft Reduction Method[A].Nagoya,ISIJ,1990:285. |
| [12] | Mayer F;Wu M;Ludwing A .On the Formation of Centreline Segregation in Continuous Slab Casting of Steel due to Bulging and or Feeding[J].Steel Research International,2010,81:660. |
| [13] | Jacobi H .Investigation of Centerline Segregation and Centerline Porosity in CC Slabs[J].STEEL RESEARCH,2003,74:667. |
| [14] | Tsuchida Y;Sugawara I;Miyahare S et al.Semi Macro Seg regation in Continuously Cast Slab[J].Transactions of the Iron and Steel Institute of Japan,1982,22:B265. |
| [15] | Tsuchida Y;Nakada M;Sugawara I et al.Behavior of SemiMacroscopic Segregation in Continuously Cast Slabs and Technique for Reducing the Segregation[J].Transactions of the Iron and Steel Institute of Japan,1984,24:899. |
| [16] | 张正群,王新华,黄福祥,许志刚,尹雨群,唐春霞.轻压下条件下管线钢铸坯凝固组织与中心偏析的关系[J].钢铁,2012(12):39-44. |
| [17] | Haida O;Kitaoka H;Habu Y et al.Macro and Semi-Macro scopic Features of the Centerline Segregation in CC Slabs and Their Effect on Product Quality[J].Transactions of the Iron and Steel Institute of Japan,1984,24:891. |
| [18] | YimC H;ParkJ K;YouBD et al.The Effect of Soft Re duction on Center Segregation in C.C.Slab[J].ISIJ International,1996,36:S231. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%