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Flux-cored wire for aluminum and aluminum welding

A technology of flux-cored welding wire and welding wire, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of insufficient plastic mechanical properties, etc., and achieve excellent drawing performance and good air tightness after welding , the effect of high welding strength

Active Publication Date: 2012-11-21
LICHUANG TAISHAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its representative components are Al balance, Si 12%, Cu 0.3%, Mg 0.1%, Zn 0.2% and Al balance, Si 5%, Cu0.3%, Mg0.05%, Zn 0.1% according to mass percentage. .However, the plasticity and post-weld mechanical properties of the existing two alloy wires cannot meet the requirements of the industry

Method used

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  • Flux-cored wire for aluminum and aluminum welding
  • Flux-cored wire for aluminum and aluminum welding

Examples

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Effect test

Embodiment 1

[0020] A flux-cored welding wire for aluminum-aluminum welding, the chemical composition and weight percentage of the welding wire material are: Si0.01%, Zn 10%, Ti 0.1%, Ce 0.5%, P 0.5%, and other unavoidable impurities are less than 0.1%, The balance is aluminum. Flux-cored welding wire for aluminum-aluminum welding obtained by the above composition ratio, combined with commercially available KF-AlF 3 Flux and CsF-AlF 3 Flux, the finished flux-cored wire is produced through the forming machine, wire drawing, and wire winding procedures.

Embodiment 2

[0022] A flux-cored wire for aluminum-aluminum welding, the chemical composition and weight percentage of the wire material are: Si 7%, Zn 30%, Ti 4%, Ce 0.001%, P 0.1%, other unavoidable impurities less than 0.1%, and the rest It is aluminum. Flux-cored welding wire for aluminum-aluminum welding obtained by the above composition ratio, combined with commercially available KF-AlF 3 Flux and CsF-AlF 3 Flux, the finished flux-cored wire is produced through the forming machine, wire drawing, and wire winding procedures.

Embodiment 3

[0024] A flux-cored welding wire for aluminum-aluminum welding, the chemical composition and weight percentage of the welding wire material are: Si20%, Zn 15%, Ti 5%, Ce 0.01%, P 0.002%, other unavoidable impurities less than 0.1%, and the rest It is aluminum. Flux-cored welding wire for aluminum-aluminum welding obtained by the above composition ratio, combined with commercially available KF-AlF 3 Flux and CsF-AlF 3 Flux, the finished flux-cored wire is produced through the forming machine, wire drawing, and wire winding procedures.

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Abstract

The invention discloses a flux-cored wire for aluminum and aluminum welding. The flux-cored wire material comprises the following chemical components in percentage by weight: 0.01 to 20 percent of Si, 0 to 30 percent of Zn, 0 to 5 percent of Ti, 0 to 0.5 percent of Ce, 0.001 to 0.5 percent of P, less than 0.1 percent of other inevitable impurity and the balance of aluminum. The flux-cored wire has the characteristics of good drawing performance, high flowability, high weld strength, high postwelding gas tightness, and no corrosion, and can be widely applied to aluminum and aluminum welding of heat exchangers or radiators in air conditioning, refrigerator, automobile and refrigeration industry.

Description

technical field [0001] The invention relates to a welding wire material, in particular to a flux-cored welding wire used for aluminum-aluminum welding. Background technique [0002] The application of aluminum in modern industrial production and social activities is becoming more and more extensive, because aluminum has many advantages, such as small specific gravity, high thermal conductivity, low resistance, high creep performance, and is convenient for machining. Now it is used in home appliances, aerospace, It is widely used in motor vehicles, ships, communications, daily necessities, etc. The weight reduction also improves the function of the product. However, the application of aluminum in the above fields widely depends on the development of welding technology. The welding of copper and copper is easy to realize, and the oxide film of copper is also relatively easy to remove. The welding of composite pipes often encounters aluminum-aluminum welding. In recent years, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/28B23K35/368
Inventor 梁力强何锡坚梁洁明范晶波
Owner LICHUANG TAISHAN ELECTRONICS TECH
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