真空感应炉冶炼X120管线钢脱氧和脱硫试验

特殊钢 ›› 2008, Vol. 29 ›› Issue (4): 25-27.

真空感应炉冶炼X120管线钢脱氧和脱硫试验

姚春发¹，李太全²，王敏²，李光瀛

1钢铁研究总院结构材料研究所，北京100081;
2北京科技大学冶金与生态工程学院，北京100083

收稿日期:2008-02-11 出版日期:2008-08-01 发布日期:2022-12-23
作者简介:姚春发(1964-),男，工程师，北京化工学院毕业，真空感应炉冶炼工艺研究。

Experiment of Deoxidation and Desulphurization for X120 Pipeline Steel Melting by Vacuum Induction Furnace

Yao Chunfa¹, Li Taiquan², Wang Min^2，Li Guangying¹

1 Central Iron and Steel Research Institute,Beijing 100081;
2 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083

Received:2008-02-11 Published:2008-08-01 Online:2022-12-23

摘要/Abstract

摘要： 在150 kg和50 kg氧化镁坩埚真空感应炉上进行X120管线钢(%:0.03～0.04C、1.98～2.05Mn、≤0.9(Cr+Mo+Nb+V+Ti)的脱氧和脱硫试验。结果表明,通过控制碳氧反应用碳脱氧和控制冶炼温度避免炉衬分解,可使钢中氧含量≤20×10^-6;在碳脱氧条件下,采用CaO-BaO-CaF₂系精炼渣,可使钢中硫含量≤0.002%。通过扫描电镜观察发现,钢中存在来源于坩埚的≤5μmMgo夹杂。

Abstract: The test of deoxidation and desulphurization of X120 pipeline steel-0.03~0.04C,1.98～2.05Mn,≤ 0.9(Cr+Mo+Nb+V+Ti)has been caried out by 150 kg and 50 kg vacuum induction furnace with magnesium oxide crucible. Results showed that with controlling carbon-oxygen reaction using carbon for deoxidiza tion and controlling melting temperature to avoid furnace lining decomposition, the oxygen content in steel was ≤20×10^-6 and with CgO-BaO-CaF₂ fining slag the sulphur content in steel was≤0.002%.It was found by scanning electron microscope that there was ≤5 μm MgO inclusions in steel which originated from crucible.

Key words: , X120 Pipeline Steel,Vacuum Induction Furnace,Deoxidation,Desulphurization

姚春发, 李太全, 王敏 , 李光瀛. 真空感应炉冶炼X120管线钢脱氧和脱硫试验[J]. 特殊钢, 2008, 29(4): 25-27.

Yao Chunfa, Li Taiquan, Wang Min, Li Guangying. Experiment of Deoxidation and Desulphurization for X120 Pipeline Steel Melting by Vacuum Induction Furnace[J]. Special Steel, 2008, 29(4): 25-27.