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Faster welding method for armored vehicle aluminium alloy part for emergency in battlefield

A technology for rapid welding of aluminum alloy parts, applied in aluminothermic welding equipment, welding equipment, metal processing equipment, etc.

Inactive Publication Date: 2009-02-25
江阴东大新材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of emergency welding and repair of aluminum alloy parts of armored equipment on the battlefield, and to invent a method for emergency rapid welding of aluminum alloy parts of armored vehicles on the battlefield.

Method used

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  • Faster welding method for armored vehicle aluminium alloy part for emergency in battlefield

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Embodiment Construction

[0013] Specific examples of emergency rapid welding of aluminum alloy parts for armored vehicles on the battlefield:

[0014] 1. The resin crucible 1 is filled with thermite flux, and the lower hole of the resin crucible is blocked with a 3mm thick asbestos pad, and 2mm of titanium powder is spread between the asbestos pad and the aluminotherm flux. Set aluminum sheet. The bottom is refractory material 6, which is used for heat preservation. When welding, use a windproof lighter to ignite the TiC powder, and then ignite the aluminothermic casting flux through the ignited TiC powder to produce a mixture liquid of iron and titanium. When it burns through the asbestos pad, it flows down and contacts the solid aluminum alloy to melt it. , through the chemical reaction of titanium in the liquid with the aluminum below and the iron above, the rapid welding of dissimilar metals of steel-titanium-aluminum is realized. In order to increase the density of welded joints, refine the str...

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Abstract

The invention relates to a quick welding method used for aluminium alloy part of armored vehicle when being emergent in battlefield, comprising the process steps: thermit casting welding flux is prepared; the thermit casting welding flux is arranged inside a resin crucible with a lower hole; the lower hole of the resin crucible is plugged by an asbestos cushion of 3-5mm; Ti powders of 2mm thick are arranged between the asbestos cushion and the thermit casting welding flux; TiC igniter is embedded inside the thermit casting welding flux and part of the TiC igniter is exposed and can be ignited; the thermit casting welding flux initiates a self-propagating reaction in the crucible, thus gaining mixed melts of iron and Ti which are poured into the aluminium alloy surface to be welded; when the melts is just concreted, knocking and pressurizing are carried out so as to achieve the welding object; the thermit casting welding flux used by the welding method, according to the weight percentage, comprises 19-25% of aluminium powders of 200-300 meshes, 55-60% of ferric oxide with the granularity less than 100 meshes and the carbon content less than 0.5%, 3-12% of alloying additive of ferromanganese, ferrosilicon and iron nailhead, residual quantity of CaCO3-CaF2-Al2O3 slagging flux and 2-5% of alkalescent auxiliary flux; the welding method is mainly applicable to the emergent quick welding of aluminium alloy parts of armored vehicles in battlefield.

Description

technical field [0001] The invention relates to a battlefield emergency rapid welding method for armored vehicle aluminum alloy parts, which is mainly suitable for emergency rapid welding repair of armored vehicle aluminum alloy parts on the battlefield. It belongs to the technical field of dissimilar metal welding. Background technique [0002] Due to the advantages of light weight, high strength, and corrosion resistance, aluminum alloys are widely used in the manufacture of armor plates and aluminum alloy parts for airdropped armored vehicles or amphibious armored vehicles. The emergency repair of armored equipment aluminum alloy parts on the battlefield is an effective means to maintain the survival rate of armored vehicles on the battlefield and improve the regeneration ability of combat effectiveness. Welding repair of aluminum alloy parts with mild war damage on the battlefield is a very important repair method. It is often the way to go. Since electric welding mac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K23/00
Inventor 陈威谭佃龙张磊刘礼华马向平汤秀山冯建林高磊李吉峰
Owner 江阴东大新材料研究院
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