Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate

卢乃双; 梁娜; 黄涛

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Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate

更新时间：2026-01-21

- Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate
- Special Steel Vol. 41, Issue 3, Pages: 25-27(2020)
- 作者机构：
  
  山东钢铁股份有限公司莱芜分公司,莱芜,271104
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：28 November 2019，
  
  Online First：24 April 2022，
  
  Published：24 April 2020
- 稿件说明：
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卢乃双, 梁娜, 黄涛. Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate[J]. Special Steel, 2020, 41(3): 25-27.
DOI：

卢乃双, 梁娜, 黄涛. Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate[J]. Special Steel, 2020, 41(3): 25-27. DOI：

摘要

采用50 t电弧炉短流程生产25MnBM履带板用钢。研究了钢中TiN夹杂物的控制工艺及稀土对25MnBM钢中非金属夹杂物的影响。通过降低钢中氮含量至70×10

-6

以下及优化连铸工艺

TiN夹杂物的数量及尺寸得到了大幅度的改善。通过添加稀土

研究稀土对25MnBM履带板用钢非金属夹杂物的影响

试验结果表明:按0.20～0.25 kg/t

钢

加入稀土后

可使非金属夹杂物总面积减小

最大夹杂物尺寸和夹杂物平均尺寸减小

对钢起到了较好的净化作用。

Abstract

The 25MnBM track plate steel is produced by 50 ton EAF short process. The control technology of TiN inclusions and the effect of RE on non-metallic inclusions in 25MnBM of steel are studied. The amount and size of TiN inclusions are greatly improved by reducing the nitrogen content of steel below 70 X 10

-6

and optimizing the continuous casting process. The effect of RE on non-metallic inclusions in 25MnBM track plate steel is studied. Test results show that

after adding 0.20 - 0.25 kg/t RE into steel

the total area of non-metallic inclusions can be reduced

the maximum inclusion size and the average inclusion size decrease

which plays a better role to purify steel.

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