Effect of Continuous Casting Parameters on Center Carbon Segregation of SWRH82B Steel 160mm x 160mm Billet

童为硕; 李晶; 闫威

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Effect of Continuous Casting Parameters on Center Carbon Segregation of SWRH82B Steel 160mm x 160mm Billet

更新时间：2026-01-21

- Effect of Continuous Casting Parameters on Center Carbon Segregation of SWRH82B Steel 160mm x 160mm Billet
- Special Steel Vol. 39, Issue 4, Pages: 38-42(2018)
- 作者机构：
  
  北京科技大学钢铁冶金新技术国家重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：28 February 2018，
  
  Online First：01 June 2022，
  
  Published：01 June 2018
- 稿件说明：
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童为硕, 李晶, 闫威. Effect of Continuous Casting Parameters on Center Carbon Segregation of SWRH82B Steel 160mm x 160mm Billet[J]. Special Steel, 2018, 39(4): 38-42.
DOI：

童为硕, 李晶, 闫威. Effect of Continuous Casting Parameters on Center Carbon Segregation of SWRH82B Steel 160mm x 160mm Billet[J]. Special Steel, 2018, 39(4): 38-42. DOI：

摘要

试验研究了结晶器电磁搅拌频率、拉速、过热度及二冷强度对SWRH82B连铸小方坯中心碳偏析的影响。研究结果表明

结晶器搅拌电流为300 A时

低电磁搅拌频率下铸坯中心碳偏析情况较好;拉速为1.8 m/min时

提高二冷比水量有利于改善中心碳偏析

但二冷比水量过高会加剧偏析;拉速为1.8 m/min时

二冷比水量为0.75 L/kg较为合适

拉速为1.9 m/min时

二冷比水量为0.8 L/kg是比较合适的;当过热度在20～30℃时

过热度对铸坯中心碳偏析的影响不大。

Abstract

The effect of continuous casting process parameters including M-EMS stirring frequency

casting speed

superheat and secondary cooling water ratio on the center carbon segregation of SWRH82B billet were investigated. The results indicated that low center carbon segregation index could be obtained in lower M-EMS stirring frequency with constant stirring current 300 A

center carbon segregation could be improved by increasing secondary cooling water ratio

but it would get worse with the further increase of secondary cooling water ratio; secondary cooling water ratio of 0. 75 L/kg was suitable for casting speed of 1.8m/min while 0. 80 L/kg was proper for 1. 9 m/min. In addition

superheat between 20 ~ 30 °C had negligible effect on the carbon center segregation.

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