英标BS80A钢轨轧制工艺开发  

Rolling Process Development of British Stand BS80A Steel Rail

作　　者：王代文 邓锐 冯伟 吕攀峰 邓长富 WANG Dai-wen;DENG Rui;FENG Wei;LV Pan-feng;DENG Chang-fu(Rail-beam Plant,Panzhihua Steel&Vandium Co.,Ltd.,Pangang Group,Panzhihua,Sichuan 617000,China)

机构地区：[1]攀钢集团攀枝花钢钒有限公司轨梁厂

出　　处：《云南冶金》2020年第1期61-65,71,共6页Yunnan Metallurgy

摘　　要：BS80A钢轨主要出口到东南亚及非洲铁路运量较小的国家,从断面特点和研制标准看,BS80A钢轨存在单重轻、轧边机出钢易扭转、腿薄万能轧机轧辊磨损快和成品尺寸难保证等研制难点,通过采取不均匀大变形量前移至BD轧机、导卫优化设计、万能轧机腿部变斜度设计、冷床均匀大变形预弯和平立复合矫直工艺等技术措施,成功研制出BS80A钢轨,产品规格尺寸、表面质量和平直度等指标达到标准要求。BS80A steel rail is mainly export to Southeast Asia and countries with less rail traffic in Africa.From the section characteristics and development criteria,BS80A steel rail has the following difficulties,such as,easy to twist in tapping of single heavy and light edger,fast wear of roll in leg thin universal mill,the size of finished products is difficult to guarantee,and so on;By adopting such technical measures as non-uniform large deformation moving forward to BD rolling mill,guide and guard optimization design,variable inclination design of legs of universal rolling mill,uniform large deformation pre-bending and vertical compound straightening process of cooling bed,etc,therefore,the BS80A steel rail is developed,which has qualified product size,surface quality,straightness and the other qualified indicators.

关 键 词：钢轨 孔型设计 预弯 矫直工艺 

分 类 号：TG332.33[金属学及工艺—金属压力加工] TG335.43