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用Ni基R-N_1焊丝作为填充材料,采用小线能量的手工氩弧焊方法可实现离心铸造HP-Nb高温合金炉管与1Cr5Mo钢法兰异质钢的焊接。焊缝组织良好,过渡区狭窄,焊接接头力学性能满足质量要求。
Using Ni-based R-N_1 wire as filling material, the welding of HP-Nb superalloy tube and 1Cr5Mo steel flanged dissimilar steel by centrifugal casting can be achieved by manual argon arc welding with small wire energy. Good weld organization, the transition zone is narrow, the mechanical properties of welded joints to meet the quality requirements.