Key points of applying hot wire TIG in Ni-based alloy surfacing of pipe inner wall
The Pucheng Texaco gasifier being produced in our company has a unique welding requirement-use Ni-based materials to fully weld the upper and lower cylinders.Difficulties in ensuring quality are significant,especially during the process of welding the inner wall of the large-diameter pipe within the cylinder.Achieving high-quality inner wall surfacing bears substantial influence on the overall welding quality and production effi-ciency.In response to these gasifier welding demands,our company has adopted hot wire TIG equipment to weld the inner wall of their large-diameter pipe,and has conducted an extensive review of the application of hot wire TIG in welding Ni-based alloy on the inner wall of the pipe.The results indicate a 16％reduction in weld seam crack rate,a 40％increase in first-pass non-destructive testing qualification rate,and nearly a 30％im-provement in welding efficiency.
万方数据
维普
