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Seamless explosive core aluminium welding wire and manufacturing method thereof

A flux-cored aluminum welding wire, seamless technology, used in manufacturing tools, welding media, welding equipment, etc., can solve the problems of scattered active substances in the core, easy moisture absorption in gaps, inclusions, etc.

Inactive Publication Date: 2008-07-16
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The aluminum alloy strip is made into a tubular shape to make a flux-cored aluminum welding wire, which is more conducive to forming a dense weld through the action of the active material than a solid welding wire, but the gaps of this kind of flux-cored welding wire are easy to absorb moisture, inclusions, and cause core activity. Scattering of substances affects the welding effect

Method used

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  • Seamless explosive core aluminium welding wire and manufacturing method thereof

Examples

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Effect test

example 1

[0013] Example 1, the weight percentage of aluminum on the outer skin contains 100%; the various halides in the core contain by weight percentage: aluminum fluoride 25%; potassium fluoride 30%; cesium fluoride 5%; J201 40%.

Embodiment 2

[0014] Example 2, the outer skin aluminum alloy contains 30% by weight of aluminum; 10% of silicon; 60% of zinc; the core contains various halides by weight: 25% of aluminum fluoride; %; J201 15%.

Embodiment 3

[0015] Embodiment 3, the outer skin aluminum alloy contains 68.7% of aluminum, 11% of silicon, 20% of zinc and 0.3% of titanium by weight percentage. The various halides in the core include by weight percentage: 25% of aluminum fluoride; 40% of cesium fluoride; 35% of J201.

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Abstract

The invention relates to a seamless flux-cored aluminum welding wire, which consists of a sheath and a core part, is conducive to adding an additive conveniently, quantificationally and efficiently during aluminum welding process and does not result in absorption of moisture, slag inclusion and scattering of core active substrates when removing an oxide film. The seamless flux-cored aluminum welding wire has the advantages of convenient application, high welding efficiency, no subsequent cleaning, environmental protection, etc. when being applied to soldering. The seamless flux-cored aluminum welding wire has high welding wire deposition efficiency and large deposition efficiency, while being applied to argon-arc welding and compared with solid core welding of the same specification, weld width is comparatively wide, penetration is increased, shape factor and weld reinforcement are reduced and the weld strength is 15 percent higher. Compared with flux-cored aluminum welding wire made of bite straps, the invention is characterized by less air holes and slag inclusion and high welding reliability.

Description

technical field [0001] The invention relates to a seamless flux-cored aluminum welding wire, in particular to a welding wire used for argon arc welding and brazing of aluminum. Background technique [0002] Aluminum is widely used in industrial production and social life. Due to its small specific gravity, good electrical and thermal conductivity, excellent castability and machinability, aluminum plays an irreplaceable role in modern industrial materials. In aviation, aerospace, communications, automobiles, high-speed trains, urban light rail, shipbuilding, electronics, home appliances, daily necessities, etc., in order to reduce weight, improve efficacy, and enhance aesthetics, gratifying achievements have been made in substituting aluminum for copper and aluminum. . [0003] The wide application of aluminum largely depends on the development of welding technology, and argon arc welding and brazing are still the most important welding methods. The welding of aluminum is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/40
Inventor 龙伟民于新泉潘建军裴夤崟钟素娟李涛杨继东
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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