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本项成果是无缝药芯焊带埋弧堆焊技术的一个发展。采用该项成果为哈尔滨电碳厂堆焊了450mm口径的阀门4件，经检测符合阀门技术标准，投入生产运行效果良好，具有节能节材的经济价值和社会效益。1．效率高：以往采用药芯焊带埋弧堆焊的效率约为20kg／h，而采用该技术最高熔敷
This result is a seamless development of submerged arc cladding welding technology. The results of Harbin Electric Carbon Factory welding 450mm diameter valve 4, the test meets the valve technical standards, put into production and operation of good results, with the economic benefits of energy-saving materials and social benefits. 1. High efficiency: In the past, the use of flux cored submerged arc welding efficiency of about 20kg / h, and the use of the highest technology of welding