Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel

王超; 袁守谦; 陈列; 王德炯; 张兵

您当前的位置：

首页 >

文章列表页 >

Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel

更新时间：2026-01-21

- Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel
- Special Steel Vol. 30, Issue 2, Pages: 48-49(2009)
- 作者机构：
  
  1. 西安建筑科技大学冶金工程学院,西安,710055
  2. 西宁特钢股份有限公司,西宁,810000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：03 September 2008，
  
  Online First：05 December 2022，
  
  Published：05 December 2009
- 稿件说明：
移动端阅览
王超, 袁守谦, 陈列, et al. Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel[J]. Special Steel, 2009, 30(2): 48-49.
DOI：

王超, 袁守谦, 陈列, et al. Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel[J]. Special Steel, 2009, 30(2): 48-49. DOI：

摘要

西宁特钢的GCr15轴承钢连铸坯由90 t UHP Consteel EAF-LF(VD)-CC流程生产。通过全程保护浇铸

钢中平均氧含量减少3.15×10

-6

控制钢水过热度≤20℃

拉速0.7～0.8 m/min

二次冷却比水量0.40 L/kg

铸坯平均等轴晶率≥60%

且铸坯质量明显提高;在上述优化工艺参数下

采用3.25 Hz/250 A结晶器电磁搅拌和20 Hz/300 A凝固末端电磁搅拌

铸坯中心碳偏析指数为0.99～1.20。

Abstract

Cast bloom of GCrl5 bearing steel is produced by 90 t UHP Consteel EAF-LF(VD)-CC flow sheet at Xining Special Steel.With shielded casting practice in whole casting process

the average oxygen content in steel decreased by 3.15×10-6;by controlling the degree of superheat of molten steel ≤ 20 ℃

the casting speed 0.7～0.8 m/min and the secondary cooling water rate 0.40 L/kg

the average equiaxial crystal zone ratio of bloom was ≥ 60% and the quality of bloom obviously increased; and with above optimized process parameters and using 3.25 Hz/250 A EMS for mold and 20 Hz/300 A EMS for solidified front

the carbon segregation index in center of bloom was 0.99～1.20.

关键词

Keywords

references

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Optimization of Power Supply Curves for a 120 t LF

Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet

Carbide Control of GCr15 Bearing Steel and Its Influence on Crushing Load

Mathematical Simulation for Optimization of Tundish with Gas Curtain and Its Metallurgy Effects

Related Author

李庆胜

孙玉虎

赵彦华

胡志刚

鲁开嶷

鲁路

张林

石长民

Related Institution

邯郸钢铁集团公司

江阴兴澄合金材料有限公司线材研究所，江阴

江阴兴澄特种钢铁有限公司棒材研究所，江阴

山东东阿钢球集团有限公司技术部，东阿

首钢水城钢铁(集团)有限责任公司

⁰