26 Apr,2024
Tip：Welding defects of hot wire TIG welded pipe
Hot wire TIG welding is especially suitable for the straight pipe butt jointing of alloy steel, stainless steel and dissimilar steel with thick walls and higher material grades. It requires higher preparation work such as groove processing accuracy and cleaning of the inner and outer surfaces of the groove. Otherwise, the weld seam It is easy to produce welding defects such as pores, burn-through, welding nodules, undercuts, incomplete welding, and cracks.
In addition, welding defects such as pores, burn-through, welding nodules, undercuts, and incomplete penetration will cause force concentration during the repeated heating and cooling of the boiler, and then develop into crack sources, completely destroying the internal structure of the weld. The actual effective size of the joint is reduced, the strength and plasticity of the joint are reduced, the connection and load-bearing capacity are lost, and it is easy to cause leakage of the used parts, pipe explosion and other accidents.
Relevant News
