Assel轧管机芯棒冷却及后台设备的改造  

Modifications of Mandrel Cooling System and Outlet Table of Assel Pipe Mill

作　　者：陈峰[1] 赵永平[1] 李森林 

机构地区：[1]中国重型机械研究院,陕西西安710032 [2]陕西省冶金设计研究院,陕西西安710032

出　　处：《钢管》2007年第5期45-47,共3页Steel Pipe

摘　　要：全浮动轧制、后台传动的Assel轧管机存在芯棒甩动而易弯曲、后台荒管和芯棒导向能力不足以及主减速机温升大等严重问题。为此,采用热态滚动矫直和分段冷却技术对芯棒冷却机构进行改进;将主减速机的传动方式改为单独传动,调整荒管导向装置和改进结构,加大其开闭动作幅度等。改造后,芯棒冷却不均以及附加弯曲减小,后台荒管导向能力明显增强,使用效果良好。Several problems are encountered with the Assel pipe mill featuring full-floating rolling and outlet table-located drive system, including swing-caused mandrel-bending, poor guidance to the shell/mandrel and serious temperature rise of the main gear reducer. Accordingly, a series of modifications are carried out, i.e., modification of mandrel-cooling system by means of hot-rotating straightening and stepped-cooling process; changing the drive type of the main gear reducer into individual drive, and improving the shell-guiding device with a better structure to increase the opening/closing range. Thanks to these measures, the temperature inhomo- geneity and additional bending of the mandrel being cooled are mitigated, and the outlet table guidance to the shell is much better than before, resulting in good effectiveness.

关 键 词：ASSEL轧管机 芯棒 冷却机构 后台设备 改造 

分 类 号：TG333.8[金属学及工艺—金属压力加工]