研究了交流和直流反接两种型式下焊丝金属熔敷率、焊接接头金属组织以及接头的力学性能。
The deposition efficiency of welding wires metal, microstructure and mechanical properties of welded joints were studied.
本发明实现了补焊前的预热，补焊接头强度大于熔敷金属自身的强度。
The invention realizes preheating before repair welding, and the strength of a repair welding joint is more than that of the deposited metals.
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