Semi-automatic circumferential weld welding process for bimetal composite pipe
The semi-automatic circumferential weld welding process comprises joint design, root welding, hot welding, filling welding and cosmetic welding, the welding mode is manual/GTAW, ERNiCrMo-3 welding wires are adopted for semi-automatic butt welding, in the joint design, the welded pipe end is machined...
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| creator | GAO JIAN BAO MINGYU FU LINGDI CHEN HAN LIU CHANG ZHANG XUN LIN DONG ZHOU XIAOMAN LI CHAOLANG |
| description | The semi-automatic circumferential weld welding process comprises joint design, root welding, hot welding, filling welding and cosmetic welding, the welding mode is manual/GTAW, ERNiCrMo-3 welding wires are adopted for semi-automatic butt welding, in the joint design, the welded pipe end is machined into a V-shaped groove, the angle of the groove face is 30 +/-2 DEG C, and the root gap is 3.5 mm-5 mm; in the hot welding process, the welding current ranges from 130 A to 150 A; in the filling welding process, the welding current ranges from 160 A to 180 A. According to the semi-automatic circumferential weld welding process for the bimetal composite pipe, the semi-automatic welding process is adopted, the machining mode and welding parameters of a semi-automatic welding joint are improved, and the prepared circumferential weld joint has good mechanical property and corrosion resistance.
本发明公开了一种双金属复合管的半自动环焊缝焊接工艺，包括接头设计、根焊、热焊、填充焊和盖面焊，焊接方式为手工/GTAW，采用ERNiCrMo-3焊丝进行半自动对接焊，接头设计中，焊接管端加工为V型坡口，坡口面角度为30±2℃，根部间隙为3.5mm-5m |
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本发明公开了一种双金属复合管的半自动环焊缝焊接工艺，包括接头设计、根焊、热焊、填充焊和盖面焊，焊接方式为手工/GTAW，采用ERNiCrMo-3焊丝进行半自动对接焊，接头设计中，焊接管端加工为V型坡口，坡口面角度为30±2℃，根部间隙为3.5mm-5m</abstract><oa>free_for_read</oa></addata></record> |
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| 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 |
| title | Semi-automatic circumferential weld welding process for bimetal composite pipe |
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