摘要
为了研究双丝埋弧焊这种高效焊接工艺对低合金高强钢焊接成形质量的影响,进行了双丝埋弧焊对接试验。试验结果表明,电流、电压一定时,改变双丝排列方式从双丝串列、并列到错开方式,从接头成形和力学性能分析来看,只有双丝串列的双丝埋弧焊工艺适合低合金高强钢的对接焊接;为确保接头成形质量,双丝间距、焊接速度以及焊接电流、电压应控制在合理的范围内。采用大的焊接速度应选用较小的双丝间距,在中等焊接速度下,双丝间距应控制在20～100mm,同时焊接速度应控制在60～100cm/min。该研究结果对多丝焊工艺的研究和其他合金钢种的焊接有一定的参考价值。
A detailed study of how twin-wire submerged arc welding process to impact the welding forming quality on low alloy high strength steel.The experimental results show that when welding current and voltage is certain,double-wire with a change from two-wire serial,parallel to the staggered approach,from analysis of forming and mechanical properties of welding joint,only dual-wire submerged arc welding process of the two-wire serial is adapt to butt welding for low-alloy high-strength steel;To ensure that the joints forming quality,double-wire spacing,welding speed and welding current,voltage should be controlled within reasonable range;General,when a high welding speed is used,distance between pairs of wire should be selected smaller,while when welding speed is in the middle,the two-wire spacing should be controlled at the range of 20～100 mm;at the same time,welding speed should be controlled at 60～100 cm/min.The results has a certain reference value to the study of the multi-wire welding process and the welding of other types steel.
出处
《电焊机》
北大核心
2011年第3期60-64,共5页
Electric Welding Machine
基金
教育部博士点基金资助项目(200804870034)
