F45MnVS非调质钢增氮工艺研究  

RESEARCH ON NITROGEN INCREASING PROCESS OF F45MNVS NON QUENCHED AND TEMPERED

作　　者：黄长峰 晁霞[1] 牛海云[2] 汪宙 Huang Changfeng;Chao Xia;Niu Haiyun;Wang Zhou(Henan Jiyuan Iron & Steel(Group)CO., LTD;Jiyuan vocational and technical college;School of Materials Science and Engineering, Henan University of Science and Technology)

机构地区：[1]河南济源钢铁(集团)有限公司 [2]济源职业技术学院 [3]河南科技大学材料科学与工程学院

出　　处：《河南冶金》2023年第2期1-4,共4页Henan Metallurgy

基　　金：国家自然科学基金青年基金项目(52204343)。

摘　　要：为研究[S]含量0.035%~0.075%的铝镇静钢在真空炉处理过程中使用氮气作为提升气体进行增氮效率是否可行,某厂在120 t真空炉工序通过改变提升气体种类、调整真空度(控制在20000~30000 Pa)、提高环流量(1500 NL/min)进行氮气循环增氮工艺实验。工业实验表明,氮气吸收率平均值达到20.9%,氮元素的质量分数平均值0.0122%,实现了可以不使用合金增氮。In order to study whether it is feasible to use nitrogen as lifting gas for increasing nitrogen efficiency of alu-minum killed steel with[S]content of 0.035%~0.075%during vacuum furnace treatment,nitrogen circulation nitrogen increasing process test was carried out by changing the type of lifting gas,adjusting the vacuum degree(controlled between 20000~30000 Pa)and increasing the circulating flow(1500 NL/min)in the 120 t vacuum furnace process.The industrial experiment shows that the average nitrogen increasing efficiency is 20.9%,and the average mass fraction of nitrogen element is 0.0122%.The purpose of increasing nitrogen without using alloy has achieved。

关 键 词：RH 真空环流 真空度 吹氮 增氮速率 

分 类 号：TF703[冶金工程—钢铁冶金]