易切削钢XY45的工艺实践与分析  

Process practice and analysis on free-cutting steel XY45

作　　者：胡洵璞[1] 杨琦云[2] 

机构地区：[1]湖南工业大学冶金学院,湖南株洲412000 [2]湘潭钢铁集团有限公司炼钢厂,湖南湘潭411101

出　　处：《炼钢》2008年第1期26-30,共5页Steelmaking

摘　　要：总结了在易切削钢XY45生产过程中为保证成品质量而采用的冶炼工艺、连铸工艺及轧制工艺上的关键因素，并进行了相应的理论分析。实践表明，精炼过程中控制好[0]、Is]含量和将m（Mn）／m（s）控制在4．0～5．5之间，连铸过程中严格控制过热度等工艺参数以提高铸坯质量，在轧制过程中加强温度控制以提高成品质量，最终可获得符合标准要求的产品。The present paper sums up the key factors in the technological processes such as the metallurgical process, continuous casting process and rolling process to ensure the product quality in production of the free-cutting steel XY45 and makes the theoretical analysis on those factors accordingly. Practice indicates that products in conformity with the specified standards can be finally produced so long as the [O] and [S] contents are well controlled and rn（Mn）/m（S） is confined within the limit of 4.0 to 5.5 in the process of refining; and the processing parameters such as the overheating are strictly controlled and the quality of the slabs is well improved in the process of continuously casting; and the temperatures are well controlled in rolling.

关 键 词：易切削钢 工艺控制 产品质量 

分 类 号：TF762.2[冶金工程—钢铁冶金]