拉速对连铸方坯轻压下率的影响

金属学报

2009, Vol. 45

Issue (2): 253-256

论文

本期目录 | 过刊浏览

拉速对连铸方坯轻压下率的影响

林启勇¹; 朱苗勇²

1.中冶赛迪工程技术股份有限公司自动化事业部; 重庆 400013
2.东北大学材料与冶金学院; 沈阳 110004

INFLUENCE OF CASTING SPEED ON SOFT REDUCTION GRADIENT IN CONTINUOUS CASTING BLOOM

LIN Qiyong¹; ZHU Miaoyong²

1.Automation Dept.; CISDI Engineering Co.; Ltd.; Chongqing 400013
2.School of Materials and Metallurgy; Northeastern University; Shenyang 110004

引用本文:

林启勇朱苗勇. 拉速对连铸方坯轻压下率的影响[J]. 金属学报, 2009, 45(2): 253-256.
. INFLUENCE OF CASTING SPEED ON SOFT REDUCTION GRADIENT IN CONTINUOUS CASTING BLOOM[J]. Acta Metall Sin, 2009, 45(2): 253-256.

全文: PDF(474 KB)

摘要:

结合压下率理论模型, 考察了连铸方坯在不同拉速下压下率的变化规律. 结果表明, 方坯压下率在轻压下入口处最大, 沿拉坯方向线性减少; 与板坯相比, 两者的压下率值在轻压下入口处均相差不大, 方坯压下率值在轻压下出口处较板坯小; 拉速每增加0.1 m/min, 方坯平均压下率减少约为0.04 mm/m. 方坯压下速率的取值范围不受拉速影响, 最大值和最小值分别为0.13 和0.04 mm/min. 压下速率沿拉坯方向呈线性减少, 拉速越大, 压下速率减少越慢; 方坯的平均压下速率也不随拉速变化, 保持定值0.088 mm/min, 较板坯的平均压下速率小.

关键词 ：连铸方坯, 轻压下, 压下率, 压下速率

Abstract：

On the basis of the theoretical model of soft reduction gradient, the soft reduction gradients for continuous casting bloom under different casting speeds were investigated. The results show that the reduction gradient of bloom is the biggest at the inlet of soft reduction zone, and decreases linearly along the strand. The value of bloom reduction gradient is much lower than that of slab at the outlet of soft reduction zone, and little different from that of slab at the inlet of soft reduction zone. As the casting speed increases by 0.1 m/min, the average reduction gradient of bloom decreases by 0.04 mm/m. It seems that the casting speed has no effect on the range of reduction rate which changes linearly from 0.13 to 0.04 mm/min. And the average reduction rate of bloom, which is independent of casting speed and keeps the value of 0.088 mm/min, is much lower than that of slab.

Key words： continuous casting bloom soft reduction reduction gradient reduction rate

收稿日期: 2008-07-16

ZTFLH:

TG249.9

作者简介: 林启勇, 男, 1980年生, 博士

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	林启勇
44.8K

链接本文:

https://www.ams.org.cn/CN/ 或 https://www.ams.org.cn/CN/Y2009/V45/I2/253

[1] Sivesson P, Hallen G, Widell B. Ironmaking Steelmaking, 1998; 25: 239
[2] Raja V R, Pal N, Jayaswal N P. Steel Times Int, 2005; 29(4): 41
[3] Scholes A. Ironmaking Steelmaking, 2005; 32: 101
[4] Flemings M C. ISIJ Int, 2000; 40: 833
[5] Yim C H, Park J K, You B D, Yang S M. ISIJ Int, 1996; 36(Suppl.): 231
[6] Morwald K, Thalammer M, Federspiel C, Gould L. Steel Times Int, 2003; 12(1): 17
[7] Morsut L. MPT Int, 2003; 26(2): 44
[8] HÖdl H, Thalhammer M, Stiftinger M, Schulz O, Gould L. MPT Int, 2003; 26(3): 74
[9] Shigeaki O, Masayuki K, Mamoru Y, Tatsuo M. ISIJ Int, 1991; 31: 1400
[10] Ralph N, Karl–Heinz S. Steel Res, 2003; 74: 700
[11] Yamanaka A, Okuda M. Ironmaking Steelmaking, 1999;26: 64
[12] Lin Q Y, Zhu M Y. Acta Metall Sin, 2007; 43: 847
(林启勇, 朱苗勇. 金属学报, 2007; 43: 847)
[13] Lin Q Y, Zhu M Y. Acta Metall Sin, 2007; 43: 1301
(林启勇, 朱苗勇. 金属学报,, 2007; 43: 1301)

[1]	窦坤, 卿家胜, 王雷, 张晓峰, 王宝, 刘青, 董洪标. 基于微观偏析模型的连铸方坯内裂纹敏感性研究[J]. 金属学报, 2014, 50(12): 1505-1512.
[2]	林启勇; 朱苗勇 . 连铸板坯轻压下过程压下率理论模型及其分析[J]. 金属学报, 2007, 43(8): 847-850 .
[3]	林启勇; 朱苗勇 . 不同钢种连铸板坯轻压下率的规律分析[J]. 金属学报, 2007, 43(12): 1297-1300 .
[4]	林启勇; 朱苗勇 . 连铸板坯轻压下过程中的压下效率分析[J]. 金属学报, 2007, 43(12): 1301-1304 .

Viewed

Full text

Abstract

Cited

Shared

Discussed