JCO成型過程中鋼板的變形規(guī)律研究

Study on Characteristics of Steel Plate Deformation during JCO Formation Process of SAWL Pipe

摘要: 直縫埋弧焊管JCOE生產(chǎn)線的關(guān)鍵工藝之一是折彎成型工藝。對鋼板在折彎成型過程中的變形規(guī)律進行了詳細的分析,發(fā)現(xiàn)在直縫埋弧焊管成型后鋼板的中性層內(nèi)移,導(dǎo)致鋼管周長增加、壁厚變薄;并對測量數(shù)據(jù)進行分析,驗證了有關(guān)理論。通過此項研究,有利于合理設(shè)定直縫埋弧焊管成型參數(shù)和確定原料鋼板的寬度,對提高鋼管質(zhì)量和減少材料的損耗有重要意義。

Abstract: The bending formation process is regarded as one of the critical processes as employed by the JCOE production line of the SAWL pipe. The characteristics of deformation of the steel plate during the bending formation process is analyzed in details. As a result,it is identified that after the SAWL pipe is just formed,the neutral layer of the steel plate is inward shifted,and such a change leads to increase of the tube’s circumference,and decrease of the thickness thereof. Also conducted is an analysis of relevant measured data to get related theory verified. Thanks to the above mentioned research activities,the formation parameters of the SAWL pipe,and the width of the steel plate used as raw material will be more properly determined,which means a lot in terms of tube quality improvement and cutting down of material spillage.