A kind of preparation method of zinc-aluminum alloy welding wire

Abstract

The invention discloses a preparing method of zinc-aluminum alloy welding wires, and belongs o the technical field of welding wire processing. According to the preparing method of the zinc-aluminum alloy welding wires, various processes such as melting, horizontal continuous casting, cleaning, tangential continuous extrusion with filling soldering flux, rotation forging and pulling are combined for preparing the welding wires. The preparing method has the advantages that the ingredients of the zinc-aluminum alloy can be controlled on line; the tangential continuous rod blank with the advantages of better surface smoothness, roundness and lower production cost is provided; continuous production, low energy consumption, uniform tissue performance and high production efficiency are realized, and the fully automatic / semi-automatic control of the process can be easily realized; the welding flux is compactly pressed, the tissue performance of the welding wires is good, thinner wire blanks with almost infinite length can be obtained, and higher pulling diameter reducing efficiency is realized. The preparing method of the zinc-aluminum alloy welding wires has the characteristics that the integral mechanical property of the welding wires is good, the welding flux loss is little, the production efficiency is high, the yield rate is high, the production automation degree is high, and the like.

Description

Technical field [0001] The invention relates to a preparation method of a zinc-aluminum alloy welding wire, belonging to the technical field of welding wire processing. Background technique [0002] At present, there have been breakthroughs in zinc-aluminum alloy and flux composition, but no major breakthroughs have been made in the production process. Generally, there are three commonly used production processes: [0003] (1) The thin zinc-aluminum alloy strip is rolled into a round or special shape, and then the flux is filled in, and the required wire diameter is obtained after the drawing die is closed. The plastic processing and mechanical properties of the welding wire obtained by this process are insufficient Ideal, and the process is complicated, especially if the pipe seam is not welded, it is easy to leak powder and oxidize due to water absorption. [0004] (2) The zinc-aluminum alloy pipe is obtained by extrusion, and then the alloy pipe is filled with flux by vibration a...

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Problems solved by technology

[0003] (1) Roll the thin zinc-aluminum alloy strip into a round or special shape, then fill it with flux, and obtain the required wire diameter after closing the drawing die. The plastic processing performance and mechanical properties of the welding wire obtained by this process are not enough Ideal, and the process is complicated, especially if the pipe seam is not welded, it is easy to leak powder and absorb water to oxidize and fail

[0004] (2) Zinc-aluminum alloy pipes are obtained by extrusion, and then filled with flux in the alloy pipe and then drawn to reduce the diameter, but this method has problems such as uneven flux filling, low production efficiency and high cost;

[0005] (3) The zinc-aluminum alloy strip is rolled into a C-shaped groove, filled with flux powder, drawn and closed to form a wire billet, and then the zinc-aluminum alloy extrusion billet is cast, and then the wire billet is used as the core to form the billet In order to extrude the raw material, the pipe blank with flux is made by radial extrusion method, and then the diameter is reduced to the required welding wire by drawing. This method adopts many offline processes, which is not conducive to automatic production. Flux is compacted, the effect is not ideal, and the performance of the tube blank obtained by extrusion is not good enough

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