Active agent for tungsten electrode argon arc welding and using method thereof

Abstract

The invention relates to an active agent for tungsten electrode argon arc welding. The active agent is characterized by comprising, by weight, 18 to 22% of silicon dioxide, 9 to 16% of potassium dioxide and 62 to 73% of water and the active agent is placed in shade to be sealed and stored at room temperature. According to the active agent which is non-toxic and free of halide and fluoride, the composition is simple and the using method is simple; welding arcs can contract, the welding penetration can be increased, the welding efficiency can be improved, the welding cost can be reduced, the welding deformation can be reduced, satisfactory welding seams can be obtained, and residues are less; the active agent is suitable for welding of various stainless steel and carbon steel materials and a groove can be omitted, one-step welding penetration can be achieved, and one-side welding with two-sided forming can be achieved for abutting welding seams of the stainless steel and the carbon steel if the thickness of the stainless steel and the carbon steel is below 8.5 mm.

Description

technical field [0001] The invention relates to the technical field of metal welding, in particular to an active agent for argon tungsten arc welding. Background technique [0002] Tungsten argon arc welding (TIG) can be used for the connection of all metals, but because of its shallow welding penetration, it is usually butt jointed at a thickness of more than 3mm. weld. Therefore, when TIG is used to weld thick plates, there are disadvantages such as large welding deformation, low welding efficiency, and high production cost, which cannot meet the production requirements. [0003] Active tungsten argon arc welding (A-TIG) was first proposed by the Ukrainian Barton Welding Institute in 1965, such as figure 1 As shown, this technology is to apply a layer of active flux with special chemical composition on the area to be welded before welding. Using normal welding specifications during welding can greatly increase the welding penetration. During welding, the active agent ca...

AI Technical Summary

Problems solved by technology

[0004] The flux currently on the market is inconvenient to use. It is usually mixed with acetone before use, and then welded after the acetone volatilizes, and the active agent contains fluoride or halide. Long-term use will cause great harm to the human body.

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