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2017年6月重庆旗能电铝有限公司1065#电解槽大修成功采用电渣焊技术焊接阴极钢棒,这在国内电解行业系首次,使阴极压降低至250m A以下,与传统人工焊接相比,阴极压降减少了30m V,节能100k Wh/t铝,阴极压降创历史新低,并且焊接时间由人工焊接4d缩短到2d。过去电解铝厂阴极钢棒一直采用人工焊接,易出现虚、假焊等质量问题,而且作业空间狭窄、工人劳动强度大、效率低;而电渣焊接技术是利用电流通过渣池析出电阻热,渣池充分过热,自耗电极端头浸入过热渣池吸热
June 2017 Chongqing QIngneng Aluminum Co., Ltd. 1065 # Overhaul of Electrolytic Cell Successfully adopted the ESR technology to weld cathode steel bars, which for the first time in the domestic electrolysis industry made the cathode pressure drop below 250m A, compared with the traditional manual welding , The cathode voltage drop is reduced by 30mV, the energy saving is 100k Wh / t aluminum, the cathode voltage drop is a record low, and the welding time is shortened to 4 days by artificial welding 4d. In the past, the cathode rod of electrolytic aluminum plant has been using artificial welding, prone to virtual, false welding and other quality problems, but also a narrow operating space, labor intensity, low efficiency; and electroslag welding technology is the use of current through the slag pool precipitation resistance heat, Slag pool full of overheating, self-consumption electrode tip immersed slag tank heat absorption