ERW感應(yīng)焊管焊縫質(zhì)量的影響因素分析

Investigation of Factors Influencing Seam Quality of ERW Induction Welded Pipe

摘要: 簡述了ERW感應(yīng)焊管的制管原理、制造和檢驗工藝流程。重點分析了影響ERW感應(yīng)焊管焊縫接頭質(zhì)量的主要因素。指出焊管原材料的品質(zhì)和焊管成型、焊接、熱處理等制管工序質(zhì)量對焊縫質(zhì)量有重要影響;輸入熱量、擠壓力、開口角、焊接速度以及感應(yīng)線圈和阻抗器的放置位置等主要焊接工藝控制參數(shù),直接影響焊縫的焊接質(zhì)量。

Abstract: Briefed here in article are the operation principle,the manufacturing process and the inspection process flow of the ERW induction welded pipe.Also analyzed in detail are the key factors that influence the seam joint quality of the said pipe.As a result,it is identified that the seam quality of the pipe is significantly influenced by the raw material quality,and the qualities of the pipe manufacturing operation steps,including formation,welding,heat treatment and so on.Furthermore,the seam welding quality of the pipe is also directly influenced by certain key control parameters of the welding process such as input heat amount,extruding force,opening angle,welding speed,and locations of the induction coil and the impedance transformer,etc.