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

特殊钢 ›› 2019, Vol. 40 ›› Issue (1): 57-59.

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

山西太钢不锈钢股份有限公司技术中心，太原030003

收稿日期:2018-08-23 出版日期:2019-02-01 发布日期:2022-05-24
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。

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

Wu Zhonghua

Technology Center,Shanxi Taigang Stainless steel Co Ltd,Taiyuan 030003

Received:2018-08-23 Published:2019-02-01 Online:2022-05-24

摘要/Abstract

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.

邬中华. 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[J]. 特殊钢, 2019, 40(1): 57-59.

Wu Zhonghua. Practice of Low Titanium Bearing Steel GCrl5 Steelmaking by 60 t EAF-LF-VD-2.5 t Ingot Flowsheet at Taigang[J]. Special Steel, 2019, 40(1): 57-59.