Pipeline circumferential weld defect repairing method
The invention belongs to a metal pipeline welding repair technology, and particularly relates to a pipeline circumferential weld defect repairing method. The repairing method sequentially comprises the steps of electrode modification, oxidation color removal, pipeline surface cleaning, pipeline asse...
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| creator | FU JINGHUI FANG LANFENG ZHENG YI CHEN JIAN LI YANG XU LEI ZHANG YUHUI ZHOU KAI SONG JIAN |
| description | The invention belongs to a metal pipeline welding repair technology, and particularly relates to a pipeline circumferential weld defect repairing method. The repairing method sequentially comprises the steps of electrode modification, oxidation color removal, pipeline surface cleaning, pipeline assembly, ring welding simulation, ring welding repair and welding effect inspection. In the circumferential welding process, a reasonable circumferential weld repairing process route and a reasonable circumferential weld repairing control process are explored according to welding objects and welding requirements, the qualification rate of pipeline circumferential welding can be greatly increased, and the method is particularly suitable for pipeline circumferential welds with the specification of (phi 6-phi 24)*0.8. Through electrode control, simulated girth welding before formal girth welding and accurate control over front face gas flow parameters, the problem that the one-time welding qualification rate of girth wel |
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The repairing method sequentially comprises the steps of electrode modification, oxidation color removal, pipeline surface cleaning, pipeline assembly, ring welding simulation, ring welding repair and welding effect inspection. In the circumferential welding process, a reasonable circumferential weld repairing process route and a reasonable circumferential weld repairing control process are explored according to welding objects and welding requirements, the qualification rate of pipeline circumferential welding can be greatly increased, and the method is particularly suitable for pipeline circumferential welds with the specification of (phi 6-phi 24)*0.8. 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The repairing method sequentially comprises the steps of electrode modification, oxidation color removal, pipeline surface cleaning, pipeline assembly, ring welding simulation, ring welding repair and welding effect inspection. In the circumferential welding process, a reasonable circumferential weld repairing process route and a reasonable circumferential weld repairing control process are explored according to welding objects and welding requirements, the qualification rate of pipeline circumferential welding can be greatly increased, and the method is particularly suitable for pipeline circumferential welds with the specification of (phi 6-phi 24)*0.8. Through electrode control, simulated girth welding before formal girth welding and accurate control over front face gas flow parameters, the problem that the one-time welding qualification rate of girth wel</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINE TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS POLISHING SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM |
| title | Pipeline circumferential weld defect repairing method |
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