Preparation method of 5356 aluminum alloy welding wire

Abstract

The invention discloses a preparation method of a 5356 aluminum alloy welding wire, and belongs to the technical field of aluminum welding wire production. The preparation method comprises the following steps that S1, rough scraping is conducted, specifically, oxide skin on the surface is removed to obtain the welding wire with the diameter of 2.40 mm; S2, primary drawing is conducted, specifically, the aluminum alloy welding wire is drawn through a water tank wire drawing machine, and the welding wire with the diameter being 1.370 mm is obtained; S3, fine scraping is conducted, specifically, a surface hardened cracking layer is removed, and whole circle polishing is conducted to obtain the welding wire with the diameter being 1.280 mm; S4, shaping and drawing are conducted, specifically, the aluminum alloy welding wire is drawn into the welding wire with the product specification being phi 1.185 mm; S5, cleaning is conducted, specifically, polishing is conducted firstly, oil stains and aluminum powder on the surface are removed, and then rinsing and cleaning are conducted through ultrasonic waves and hot water; and S6, drying is conducted, specifically, the aluminum alloy welding wire is dried through hot air drying. By adopting the process of firstly scraping and then drawing, the scraping operability and the production efficiency can be improved, the surface quality of finished wires is improved, and the annealed oxide skin is prevented from being brought into the wire drawing machine.

Description

technical field [0001] The invention relates to the technical field of aluminum welding wire production, in particular to a preparation method of 5356 aluminum alloy welding wire. Background technique [0002] With the extensive application of aluminum alloy and high-efficiency automatic welding technology in high-end military and civilian lightweight equipment, the quality and performance requirements for aluminum alloy welding materials are getting higher and higher. The performance and quality of aluminum alloy welding wire depends not only on the smelting and purification technology of aluminum alloy melt, but also on the forming process and surface treatment process of aluminum alloy welding wire. The continuous drawing process is used in the early processing, so that the internal structure and tensile strength of the material are inferior to those of the rolling process; the subsequent surface treatment technology uses a sizing die to make a layer formed on the surface...

AI Technical Summary

Problems solved by technology

The continuous drawing process is used in the early processing, so that the internal structure and tensile strength of the material are inferior to those of the rolling process; the subsequent surface treatment technology uses a sizing die to make a layer formed on the surface of the welding wire during the water tank drawing process. The oxide film and the scale, burrs, oil stains and defects formed in the previous processes are pressed into the welding wire by the sizing die, which affects the surface quality and performance of the welding wire