钒氮合金化S450J0 H型高强钢桩的生产技术开发  

Production Technology Development of Vanadium Nitrogen Alloying S450J0 H-type High Strength Steel Pile

作　　者：冯岩青 吴娟 卢雄慧 刘舵[3] 吕超[4] 卜向东[5] Feng Yan-qing;Wu Juan;Lu Xiong-hui;Liu Duo;Lv Chao;Bu Xiang-dong(Baotou Vocational Technical College,Baotou 014030,Inner Mongolia Autonomous Region,China;Steel-making Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Marketing Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]包头职业技术学院,内蒙古包头014030 [2]内蒙古包钢钢联股份有限公司炼钢厂,内蒙古包头014010 [3]内蒙古包钢钢联股份有限公司轨梁厂,内蒙古包头014010 [4]内蒙古包钢钢联股份有限公司营销中心,内蒙古包头014010 [5]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2022年第6期58-63,共6页Science & Technology of Baotou Steel

基　　金：包头职业技术学院“新材料工艺改进及性能控制”2022年科研创新团队(基金项目号:2022BZYKC04)。

摘　　要：S450J0钢桩是H型钢家族中的钒氮合金化钢,其特点为高强度厚规格并具有良好的冲击韧性及焊接性。文章主要介绍其关键技术和工艺,根据产品的性能要求,设计了钢种成分,制定了相关冶炼、连铸及轧制工艺。生产实践表明,S450J0成分设计合理,产品满足技术协议要求,技术难点在于工业生产时高氮含量的稳定控制和小压缩比的厚规格轧制。The S450J0 steel pile is vanadium nitrogen alloy steel in H section steel family as well as it is with such characteristics as high strength,heavy gauge,good impact toughness and weldability.In the paper,its key technologies and processes are mainly introduced.The composition of steel is designed as well as the relevant smelting,continuous casting and rolling processes are formulated based on the performance requirements of products.The production practices show that the composition design of S450J0 is reasonable and products could meet the requirements of technical agreement.The technical difficulties are the stable control of high nitrogen content in industrial productions and rolling of heavy gauge with small compression ratio.

关 键 词：S450J0 H型钢桩 高合金钢 高强度 厚规格 

分 类 号：TG142.33[一般工业技术—材料科学与工程]