ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2019, Vol. 40 ›› Issue (1): 57-59.

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Practice of Low Titanium Bearing Steel GCrl5 Steelmaking by 60 t EAF-LF-VD-2.5 t Ingot Flowsheet at Taigang

Wu Zhonghua   

  1. Technology Center,Shanxi Taigang Stainless steel Co Ltd,Taiyuan 030003
  • Received:2018-08-23 Online:2019-02-01 Published:2022-05-24

太钢60 t EAF-LF-VD-2.5 t铸锭流程冶炼低钛轴承GGrl5钢的实践

邬中华   

  1. 山西太钢不锈钢股份有限公司技术中心，太原030003
  • 作者简介:邬中华（1978-），男，硕士（ 2008年北京科技大学），高级工程师,2001年武汉科技大学本科毕业,碳钢型线材新产品开发工作。

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Abstract: With the process measures including using low titanium hot metal, alloys and slagging materials, eccentric bottom tapping and alloying in tapping in EAF steelmaking, using Si-Al compound deoxidation and CaO-MgO-SiO2 -Al2O3 slag series with basicity 3 ~5 in LF refining,30 Pa VD treatment and shielding casting,the analysis results of Φ150 mm forged bar are oxygen content in GCrl5 bearing steel being 4.5 X 10-6 ~9 x 10-6 ,Ti content 0.0010% ~0.0015% with minor 5 μm TiN inclusions to meet the quality requirement for super grade quality low titanium bearing steel.

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