碱性低氢型电焊条的熔敷金属具有优良的理化性能,因此,重要结构的焊接必须使用碱性低氢电焊条。随着工业技术的迅速发展,高强钢的应用日益广泛,压力容器、锅炉、船舶、重型机械,大型建筑等重要结构对焊缝综合机械性能的要求日 Alkaline low hydrogen type welding electrode deposited metal has excellent physical and chemical properties, therefore, the important structure of the welding must use alkaline low hydrogen electrode. With the rapid development of industrial technology, the application of high strength steel is becoming more and more widely. The requirements on the comprehensive mechanical properties of the weld, such as pressure vessels, boilers, ships, heavy machinery and large buildings,