除以上介绍的高速线村轧机的设备进步外,还有以下一些主要进步:1采用新型厚钢板切割焊接的粗轧机为提高轧机刚度,粗轧闭口机架已全部采用厚钢板切割、焊接后加工成型。内部设置压下装置。其次,近年来悬臂式轧机在粗轧机上广泛应用,其优点是设备紧凑轻巧,无传动轴,换辊方便,立辊 In addition to the above mentioned high-speed wire mill mill equipment improvements, there are some major improvements: 1 using a new thick plate cutting and welding roughing mill To improve the mill stiffness, rough rolling closed-mouth rack has been used in all thick steel cutting, welding and processing forming. Internal set-down device. Second, in recent years, cantilever rolling mill is widely used in rough rolling mill, the advantage of compact and lightweight equipment, no transmission shaft, easy roll change, vertical roller