国内搅拌摩擦焊技术在输变电领域的应用现状及发展前景

介绍了电力系统输变电领域常用的铝合金材料及其焊接结构件,输变电侧焊接结构常采用耐腐蚀性能较好的5系Al-Mg铝合金及导电性能较好的6系Al-Mg-Si铝合金。重点分析了搅拌摩擦焊技术在铝合金水冷板散热器、气体绝缘输电线路(GIL)、气体绝缘金属封闭开关设备(GIS)、通电导体等焊接结构件的应用现状,并对搅拌摩擦焊技术在电力行业的应用进行了展望。指出了搅拌摩擦焊技术在电力行业应用中展现出巨大的潜力,但是目前的应用仍处于初级阶段,需要综合考虑设备电特性,以及对搅拌摩擦焊的工艺性能及接头性能进行更加细致的研究。

Application and development prospect of friction stir welding technology in power transmission and transformation field in China

The aluminum alloy materials and their welded structural parts commonly used in power transmission and transformation were introduced. The 5 series aluminum alloy with good corrosion resistance and 6 series with good conductivity were often used in welding structure. The application status of friction stir welding technology in welded structural parts were analyzed, such as aluminum alloy water-cooled plate radiator, gas insulated transmission line (GIL), gas-insulated metal-enclosed switchgear (GIS), energized conductor. At last, it is pointed out that the friction stir welding technology has shown great potential in power applications. However, the application in the power industry is in the initial stage, and it is necessary to comprehensively consider the electrical characteristics of the equipment, and conduct more detailed research on the weld performance.