摘要
通过研究钒、铝微合金化机理,使用不同钒微合金化原料,对5种不同工艺开发方案进行了对比研究,对出现的问题进行了深入技术分析。最终确定采用转炉-氩站-连铸-轧钢(采用钒氮微合金化,氧控制在≤110 ppm,氮控制在≤100 ppm,脱氧使用铝锰钛铁0.14 kg/t和硅铝钡锶0.6 kg/t,钢水不保铝)工艺生产Q460高强角钢。经工业试制,Q460成品成分及力学性能均满足相关标准规定,取得了可观的经济效益,同时为国家输电网络升级换代,降低能耗提供了重要保障。
By studying the mechanism of vanadium and aluminum microalloying,using different vanadium microalloying raw materials,five different process development schemes were designed,and the problems were analyzed.Finally,the converter-argon station-continuous casting-rolling process(adopting V-N microalloying,oxygen control≤110 ppm,nitrogen control≤100 ppm,aluminum manganese titanium iron 0.14 kg/t and silicon aluminum barium strontium 0.6 kg/t used for deoxidization,molten steel does not retain aluminum)is adopted to produce Q460 high-strength angle steel.After the industrial trial production,the composition and mechanical properties of Q460 product meet the requirements of relevant standards,and considerable economic benefits have been achieved.At the same time,it provides an important guarantee for upgrading the national transmission network and reducing energy consumption.
作者
王建强
Wang Jianqiang(HBIS Group Xuansteel Company,Xuanhua,Hebei,075100)
出处
《河北冶金》
2020年第10期52-57,共6页
Hebei Metallurgy
关键词
Q460
微合金化
高强度角钢
经济效益
Q460
micro-alloying
high strength angle steel
economic benefit
