E40钢双丝埋弧焊焊缝在不同热输入条件下性能分析

Analysis on Performance of E40 Steel Double Wire Submerged Arc Welding Seam Under Different Heat Input Condition

采用我国自行研制的大热输入用钢E40,基于计算机技术在不同热输入条件下对E40进行双丝埋弧焊焊接,对不同条件下焊接热影响区和焊缝处的组织以及性能进行分析研究。结果表明,热输入量和焊缝焊接道次的合理搭配,便可以得到性能效果较好的焊接接头。

The double wire submerged arc welding of E40 steel used for large heat input were conducted under the conditions of different heat input based on computer, the microstructure and performance of welding heat affected zone and welding joint under different conditions were analyzed. The result show that the rational combination of heat input and welding pass of welding seam can get the welding joint with good performance.