热轧花纹H型钢轧制工艺的开发  

Development of rolling process of hot-rolled pattern H-beam

作　　者：石雷[1] 李静 张丽娜 肖克勇 夏红雨 SHI Lei;LI Jing;ZHANG Lina;XIAO Keyong;XIA Hongyu(Maanshan Iron and Steel Co.,Ltd.,Maanshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《轧钢》2022年第5期113-117,共5页Steel Rolling

摘　　要：热轧花纹H型钢是一种绿色环保钢材,可以大大降低钢结构加工成本,马钢在其大H型钢生产线上对热轧花纹H型钢进行了开发。介绍了马钢大H型钢生产线的工艺装备及流程,以Q355B牌号244 mm×252 mm×11 mm×11 mm规格花纹H型钢的开发为例,介绍了钢坯加热制度,开坯、万能轧制工艺和孔型设计,以及矫直工艺。该产品的开发在现有大H型钢产线装备条件下,经过孔型和压下规程的合理设计,采用X-H轧制方法,在万能轧机组最后一道次轧制翼缘外侧花纹,花纹符合标准要求、清晰度优良。与国外轧制工艺进行了对比,降低了对设备精确度的要求,轧制方法更加简便,尺寸调整手段更加多样化,为国内热轧型钢产品开发提供了技术支撑。Hot-rolled pattern H-beam is a kind of green environmental protection steel,which can greatly reduce the processing cost of steel structure.It was developed on the large H-beam production line of Maanshan Iron and Steel Co.,Ltd.The process equipment and processes flow of the large H-beam production line were introduced.Taking the development of Q355 B grade 244 mm×252 mm×11 mm×11 mm patterned H-beam as an example,the billet reheating scheme,cogging,universal rolling process,pass design and straightening process were introduced.The development of this product is based on the existing large H-beam production line equipment,through the rational design of the pass and reduction schedule,the X-H rolling method was used to roll the outer flange pattern in the last pass of the universal rolling mill.The pattern conforms to the standard requirements,and the clarity is excellent.Compared with the foreign rolling process,the requirements for the accuracy of the equipment are reduced,the rolling method is simpler,and the size adjustment methods are more diversified,which provides technical support for the development of new domestic hot-rolled steel products.

关 键 词：热轧花纹H型钢 X-H轧制法 孔型设计 轧制规程 

分 类 号：TG335.4[金属学及工艺—金属压力加工]