连铸工艺参数对中碳高锰钢带状组织的影响研究  

Study on Influence of Continuous Casting Process Parameters on Banded Structure of Medium Carbon High Manganese Steel

作　　者：李辉成 徐必靖 任振海 陈占领 朱富强 邹晋[2] LI Huicheng;XU Bijing;REN Zhenhai;CHEN Zhanling;ZHU Fuqiang;ZOU Jin(Zenith Steel Group Company Limited,Changzhou 21301l,China;Applied Physical Institute,Jiangxi Academy of Sciences,Nanchang 330096,China)

机构地区：[1]江苏常州中天钢铁集团,江苏常州213011 [2]江西省科学院应用物理研究所,江西南昌330096

出　　处：《热加工工艺》2023年第5期84-86,共3页Hot Working Technology

基　　金：江苏省科技成果转化项目(BA2016087);中央引导地方专项项目(20192ZDD01002);江西省重点研发计划项目(20192BEE50036)。

摘　　要：通过设计不同过热度和不同拉速的中碳高锰钢连铸工艺参数,对比分析了不同连铸工艺参数下生产的连铸坯轧材的带状组织,研究连铸工艺参数(过热度和拉速)对轧材带状组织的影响规律。结果表明:降低过热度或者降低连铸拉速可以改善连铸坯宏观偏析,减小连铸坯凝固组织中二次枝晶臂间距,轧制后可减小带状组织中铁素体条带宽度。By designing the continuous casting process parameters of medium carbon high manganese steel with different superheat temperatures and different casting speeds,the banded structure of continuous casting billet rolling under different technological parameters was compared and analyzed.The influence law of the continuous casting process parameters(superheat temperature and casting speed)on rolling band microstructure was studied.The results show that reducing the superheat temperature or the casting speed can improve macro-segregation of continuous casting billet,reduce the distance between secondary dendrite arms in solidification structure of continuous casting billet,and reduce the width of ferrite strip after rolling.

关 键 词：过热度 拉速 带状组织 偏析 

分 类 号：TG249.7[金属学及工艺—铸造]