Surface active agent for alternating TIG welding of aluminium and alumnium alloy and its coating process

Abstract

A surfactant for the AC TIG welding of aluminium or Al-alloy contains SiO2 (18-22 wt.%) TiO2 (60-70) and V2O5 (10-18). Its coating method includes such steps as mixing it with acetone or butanone, stirring, brushing or spraying the mixture no the surface to be welded, and drying.

Description

technical field [0001] The invention relates to a surfactant for welding aluminum and aluminum alloys. Background technique [0002] Aluminum and aluminum alloys are one of the most commonly used non-ferrous metal materials. The most commonly used welding method is AC TIG welding. However, due to the shallow penetration and low deposition rate of single-pass welds, it is generally used for welding thin plates. For welding medium and thick plates, high-power welding power sources or special processes are generally used, such as pre-welding preheating, multi-layer multi-pass welding, double-sided simultaneous welding, etc., which increases the difficulty of construction and welding costs; Reduced production efficiency. Contents of the invention [0003] The purpose of the invention is to improve the penetration depth of AC TIG welding of aluminum and aluminum alloy, and improve the welding efficiency. [0004] The invention is a surfactant for TIG welding of aluminum and a...

AI Technical Summary

Problems solved by technology

[0002] Aluminum and aluminum alloys are one of the most commonly used non-ferrous metal materials. The most commonly used welding method is AC TIG welding. However, due to the shallow penetration and low deposition rate of single-pass welds, it is generally used for welding thin plates.

For welding medium and thick plates, high-power welding power sources or special processes are generally used, such as pre-welding preheating, multi-layer multi-pass welding, double-sided simultaneous welding, etc., which increases the difficulty of construction and welding costs; reduced productivity