摘要
目的研究CO_(2)气体保护焊中不同焊接参数对钢筋骨架主筋力学性能的影响,以提高钢筋骨架自动成型生产线的生产质量和生产效率。方法通过四因素三水平正交实验,结合钢筋骨架自动成型生产线焊接钢筋骨架,研究焊接时间、电弧电压、焊接电流、箍筋间距4个因素对钢筋骨架主筋抗拉强度、屈服强度以及延展性的影响,通过优良率的对比明确各因素对焊接结果的影响程度和最佳的焊接参数组合。结果分析结果表明焊接电流为300 A、电弧电压25 V、焊接时间1.3 s、箍筋间距100 mm时焊接效果最佳。结论4个焊接因素对钢筋骨架焊接结果影响顺序从大到小依次为焊接电流、电弧电压、焊接时间、箍筋间距,并且电流对钢筋骨架主筋的焊接结果影响最明显。
The influence of different welding parameters on the mechanical properties of the main reinforcement in CO_(2)gas shielded welding is studied,in order to improve the production quality and efficiency of the automatic forming production line.Through four factors and three levels orthogonal experiment,combined with the automatic forming production line of steel skeleton,the influence of welding time,arc voltage,welding current and stirrup spacing on the tensile strength,yield strength and ductility of the main reinforcement of steel skeleton is studied.Through the comparison of the excellent rate,the influence degree of each factor on the welding result and the best combination of welding parameters are determined.The results show that the welding effect is the best when the welding current is 300 A,the arc voltage is 25 V,the welding time is 1.3 s and the stirrup spacing is 100 mm.The influence order of the four welding factors on the welding results of the steel skeleton is welding current,arc voltage,welding time,stirrup spacing,and the current has the most obvious influence on the welding results of the main reinforcement of steel skeleton.
作者
陈士忠
白云飞
刘子金
汶浩
CHEN Shizhong;BAI Yunfei;LIU Zijin;WEN Hao(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang,China,110168;China Academy of Building Sciences Limited Construction Mechanization Research Branch,Langfang,China,065000)
出处
《沈阳建筑大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第5期935-941,共7页
Journal of Shenyang Jianzhu University：Natural Science
基金
“十三五”国家重点研发计划项目(2017YFC704002)。
关键词
焊接参数
钢筋骨架
主筋
延伸率
优良率
welding parameters
steel skeleton
main reinforcement
percentage elongation
good proportion ratio
