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膜式水冷壁,是大型电站锅炉的主要部件,系由φ60×5毫米的鳍片管组焊而成。焊接时,要用大量1毫米厚钢板调整节距,其装配和焊接的工作量都很大,是生产中的一个关键。为提高工效,我厂将原有的CO_2焊机改装成为三头焊接装置,专用于焊接鳍片管,详见示意图。焊机技术特性: 电源:AS—500硅整流器、GD—500—2控制箱;电流:210～240安;焊接电压:22～23伏;焊接速度:24～26米/时;焊丝直径:1.6毫米;喷咀直径:30毫米;CO_2流量:20～25升/分;干伸长:30毫米。用本装置焊接鳍片管时,不需要调整垫片即能保证节距,使装配工作简化,一次能
Membrane water wall, is the main component of large-scale power plant boiler, by the φ60 × 5 mm fin tube welding. Welding, the use of a large number of 1 mm thick steel plate to adjust the pitch, the assembly and welding workload are large, is a key production. In order to improve work efficiency, our factory converted the original CO_2 welding machine into a three-head welding device, which is specially used for welding fin tubes, as shown in the schematic diagram. Technical characteristics of welding machine: Power supply: AS-500 silicon rectifier, GD-500-2 control box; Current: 210 ~ 240A; Welding voltage: 22 ~ 23V; Welding speed: 24 ~ 26m / Mm; nozzle diameter: 30 mm; CO 2 flow rate: 20-25 liters / min; dry elongation: 30 mm. When the fin tube is welded by the device, the pitch can be ensured without adjusting the gasket, so that the assembly work is simplified and the primary energy