Welding method of CO2 gas shielded welding for solid welding wire with diameter of phi 1.6

• Main Authors: QIN CHUAN, HE YAOFEI, CHEN MENGFENG, WU RONGSHAN, FU QINGBIN, ZHANG KANGMING, FENG SHUXIONG, ZHU NING, LIANG ENRONG
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2014
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to a welding method of CO2 gas shielded welding for a solid welding wire with the diameter of phi 1.6. The welding method comprises the step of welding a workpiece by a way of vertical position welding or horizontal position welding, wherein the welding process sequentially comprises the steps of welding a base layer, welding a filler layer and welding a cover surface layer, and the thickness of the welded workpiece is not less than 30mm; when the workpiece is welded in the way of vertical position welding, the welding current is 150-180A, and the arc voltage is 20-24V when the base layer is welded; the welding current is 160-240A, and the arc voltage is 20-28V when the filler layer is welded; the welding current is 150-200A, and the arc voltage is 20-26V when the cover surface layer is welded; when the workpiece is welded in the way of horizontal position welding, the welding current is 180-220A, and the arc voltage is 23-26V when the base layer is welded; the welding current is 230-280