A Study on 210 t RH Vacuum Degas Process at a Sheet Works

陈爱梅

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A Study on 210 t RH Vacuum Degas Process at a Sheet Works

更新时间：2026-01-21

- A Study on 210 t RH Vacuum Degas Process at a Sheet Works
- Special Steel Vol. 33, Issue 6, Pages: 16-17(2012)
- 作者机构：
  
  包钢钢联股份有限公司技术中心,包头,014010
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：28 May 2012，
  
  Online First：27 September 2022，
  
  Published：27 September 2012
- 稿件说明：
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陈爱梅. A Study on 210 t RH Vacuum Degas Process at a Sheet Works[J]. Special Steel, 2012, 33(6): 16-17.
DOI：

陈爱梅. A Study on 210 t RH Vacuum Degas Process at a Sheet Works[J]. Special Steel, 2012, 33(6): 16-17. DOI：

摘要

通过210t顶底复吹转炉-LF-RH-宽厚板坯连铸流程对Q345E、Q345GJC和BQ550D等钢种进行45炉次RH脱气工艺试验

研究了RH真空处理对钢水脱氢、脱氧和脱氮效果的影响。得出

在RH真空度≤270Pa

环吹氩流量1200～1500L/min

高真空时间≥10min

钢中氢含量可达到≤2×10

-6

当高真空时间为16min时

钢中氢、氧、氮含量平均分别为2.0×10

-6

、13.2×10

-6

和41×10

-6

。

Abstract

RH vacuum degas process test on 45 heats Q345E

Q345GJC and BQ550D etc. steel grades has been carried out by 210 t top and bottom combined blown converter-LF-RH-wide heavy slab CC flow sheet

and the effect of RH vacuum treatment on liquid dehydrogenation

deoxidization and denitriding is studied. It is obtained that with RH vacuum ≤270 Pa

circle blowing argon rate 1 200 〜1 500 L/min

high vacuum treatment for ≥ 10 min the hydrogen content in steel is ≤2 x 10

-6

and with high vacuum treatment for 16 min the hydrogen

oxygen and nitrogen content in steel are respectively 2 x 10

-6

13. 2 x 10

-6

and 41.0 x 10

-6

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