摘要
Abstract
In order to improve the edge quality of high-frequency longitudinal welded pipe formed by FFX,corresponding adjustment measures are proposed to address the problems of insufficient edge forming in small diameter and large wall thickness steel pipes,as well as the problem of wavy edge forming in large diameter and thin-walled pipes.By adjusting the pressure on the upper roll of the rough forming roller,adjusting the forming curvature of BD1,adjusting the diameter reduction at the precision forming roller,and adjusting the pressure on the upper roll of the welding extrusion roller,it is possible to effectively achieve the"I"shaped docking of the plate edge end face.By increasing the reduction of FP,adjusting the positions of BD,RVS,and CL mill rolls reasonably,reducing the elongation of materials in the length direction generated during the FFX process,and evenly distributing the tension of the entire production line,measures can be taken to avoid the generation of wave edges.The above methods have significant effects on improving the condition and quality of the board edges.关键词
FFX成型/高频直缝焊管/板边质量/成型缺陷Key words
FFX forming/high frequency longitudinal welded pipe/board edge quality/forming defects分类
矿业与冶金
