论文部分内容阅读
在电力建设中，２２０ ｋＶ及以上电压等级的变电站及发电厂的大电流母线，一般采用铝及铝合金材料。对架空母线的机械性能有一定的要求，因此在对铝及铝合金母线焊接填充焊丝的选用，除了考虑母线基本金属的成分外，还应考虑产品的具体要求及施工条件，并应能满足接头的机械性能、耐腐蚀性能、导电性能以及接头的抗裂性能等。总之，应针对各种铝及铝合金材料和对产品性能的不同要求，选用相应的填充焊丝。
In power construction, 220V and above voltage substations and power plants in the large current bus, the general use of aluminum and aluminum alloy materials. Overhead busbar mechanical properties have certain requirements, so in aluminum and aluminum alloy welding wire welding filler wire selection, in addition to considering the composition of the basic metal bus, should also consider the specific product requirements and construction conditions, and should be able to meet the joints The mechanical properties, corrosion resistance, electrical conductivity and crack resistance joints. In short, should be for a variety of aluminum and aluminum alloy materials and the performance of the different requirements, choose the appropriate filler wire.