Influence of Protective Gas Content on Quality of Welded Joint While Welding With Impulse Supply of Electrode Wire

6th International Scientific Practical Conference on Innovative Technologies and Economics in Engineering

工业技术;经济学

Pavlov, N.V.^1 ; Kryukov, A.V.^1 ; Zernin, E.A.^1 ; Gritsenko, V.V.^1

Yurga Institute of Technology (Branch), National Research Tomsk Polytechnic University, Leningradskaya 26, Yurga

652055, Russia^1

关键词: Electrode wires;    Martensitic-bainitic steel;    Protective gas;    Strength property;    Transition coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/91/1/012012/pdf
DOI  :  10.1088/1757-899X/91/1/012012

学科分类：工业工程学

来源: IOP

【 摘 要 】

Currently one of the advanced ways of obtaining quality welded joint while welding of medium alloy martensitic-bainitic steel is the one with impulse supply of electrode wire in gas mixture Ar(70%3%)+C02(30%3%). Results of experimental studies proved that application of protective gas Ar(70%3%)+C02(30%3%) in comparison with CO2(100%) enables to increase strength properties of the welded joint by 10-15% and enlarge the transition coefficient of chemical elements.