罩式炉常化工艺对热轧硅钢50W350组织和性能的影响  

Influence of normalization process with bell furnace on microstructure and properties of hot-rolled electrical steel 50W350

作　　者：谢凯 宋伟 吴泽交 吴高亮[1] 周和荣[2] XIE Kai;SONG Wei;WU Zejiao;WU Gaoliang;ZHOU Herong(Research Institute of Hunan Valin Lianyuan Iron and Steel Co.,Ltd.,Loudi 417009,China;School of Materials and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]湖南华菱涟源钢铁有限公司研究院,湖南娄底417009 [2]武汉科技大学材料与冶金学院,湖北武汉430081

出　　处：《电工钢》2022年第2期14-17,共4页ELECTRICAL STEEL

摘　　要：研究了罩式炉常化工艺对50W350硅钢热轧板组织、夹杂物和性能的影响。研究结果显示,罩式炉常化工艺在温度一定的情况下,随着保温时间延长,硅钢晶粒逐步再结晶并长大,同时析出物也在聚集长大。通过制定合理的罩式炉常化工艺,可以实现硅钢晶粒的再结晶和长大,从而达到连续退火炉常化工艺产品技术要求。The influence of normalization process with a bell furnace on the structure,inclusions and properties of 50W350 electrical steel hot-rolled sheet was studied.The research results showed that:when the steel was normalized at a certain temperature in the bell furnace,the silicon steel grains gradually recrystallized and grew up with the extension of the annealing holding time,and at the same time,the precipitates also gathered and grew up.The recrystallization and growth of the silicon steel grains were realized by formulating a reasonable normalization process in a bell furnace so as to meet the technical requirements of the product normalized in a continuous annealing furnace.

关 键 词：硅钢 罩式炉常化工艺 晶粒尺寸 热轧 

分 类 号：TG156.2[金属学及工艺—热处理] TG142.77[金属学及工艺—金属学]