3月8日,中冶宝钢技术第二分公司实施的铜-钢焊接技术首次在宝钢高炉风口大套更换项目上成功应用。宝钢高炉风口大套本体由全铜铸成,其直径800mm、长760mm、厚度75mm,其边缘的碳钢板厚度5mm。因其铜板厚、铜体大,进行铜材焊接时需300A以上的大电流方可作业,存在铜质母体温度未发生变化,边缘的碳钢板却已融化的问题,要将把铜与钢两种 March 8, the second branch of China Metallurgical Technology Baosteel implementation of the copper - steel welding technology for the first time in Baogang blast furnace tuyere replacement project successfully applied. Baosteel blast furnace tuyere body made of cast copper, its diameter 800mm, length 760mm, thickness 75mm, the edge of the carbon steel thickness 5mm. Because of its copper thickness, large copper body, copper welding need more than 300A when large current operation, there is no change in the temperature of the copper matrix, the edge of the carbon steel has melted the problem, to the copper and steel two Species