用三辊斜轧减径工艺生产厚壁管  

HEAVY-WALL PIPE PRODUCTION WITH THREE-HIGH CROSS-ROLLING REDUCING PROCESS

作　　者：杨志强 

机构地区：[1]衡阳钢管厂

出　　处：《钢管》1991年第4期18-21,共4页Steel Pipe

摘　　要：分析了小型轧管机组生产热轧厚壁无缝钢管存在的问题,介绍了在φ108mm 三辊轧管机上采用斜轧空心减径生产小口径厚壁无缝钢管的工艺。该工艺可避免厚壁管出现内方并减少切头和降低金属损耗,适用于毛管或荒管的空心减径和定径。The existing problems regarding production of hot-rolled heavy-wall seamless steel pipes withsmall tube-rolling mill are analysed,and also described is the non-mandrel cross-rolling reducingprocess for small-sized heavy-wall seamless steel pipes with a φ108mm three-roll tube mill.The pro-cess makes it possible to eliminate undesirable internal-square profile of the pipe,reduce croppingamount and metal loss,being suitable for pierced-shell (or elongated-shell)non-mandrel reducing andtube non-mandrel sizing.

关 键 词：管材轧机 斜轧减径工艺 无缝钢管 

分 类 号：TG335.71[金属学及工艺—金属压力加工]