Gas nozzle for a welding torch, welding torch having a produced patina layer; cleaning device for a welding torch having bristles made of a soft elastic material and abrasive grains embedded in these

Abstract

The invention relates to a gas nozzle (2) and a welding torch (1) equipped with said gas nozzle (2), a nozzle assembly (3) and a conductive tube (4), said gas nozzle (2), nozzle The component ( 3 ) and the conductive tube ( 4 ) have an artificially produced patina ( 8 ) on at least a partial area of ​​their surface for the purpose of reducing the adhesion of welding spatter. The invention also relates to a cleaning device for a welding torch (1) having a brush with bristles. These bristles are made of a very soft elastic material, preferably plastic, and abrasive particles are embedded in said bristles.

Description

technical field [0001] The present invention relates to a gas nozzle for a welding torch made of copper or a copper alloy, and a welding torch comprising a gas nozzle, a nozzle assembly and a conductive tube, wherein the gas nozzle and / or the nozzle assembly and / or the conductive tube are made of copper or copper Alloy. [0002] The invention also relates to a cleaning device for a welding torch, in particular its gas nozzle, comprising a brush provided with bristles for cleaning welding spatter of the welding torch. Background technique [0003] During the welding process, the welding torch is contaminated by molten metal spatter. The metal spatter deposits on the outer surface of the housing of the gas nozzle of the welding torch and even in the gas nozzle, where it solidifies. As a result, the shielding gas flow through the gas nozzle is disturbed by deposited metal spatter, so that ambient air can also reach the welding point, thereby adversely affecting the welding pr...

AI Technical Summary

Problems solved by technology

[0011] The systems known from the prior art include the disadvantage that such mechanical cleaning devices can only successfully clean the gas nozzles if the splash consists of solid material, especially steel or steel alloys, which means that for connecting steel or steel alloys The welding process of the workpieces is carried out such that the spatter must consist of these materials

Otherwise, the application of the usual tools known from the prior art, i.e. grinding tools, cutting tools or metal brushes, would not be possible due to the spatter formed by aluminum when soft materials such as aluminum are used, for example, in the welding process substance cannot be easily removed or stripped from the gas nozzle

In those cases what actually happens is that the spatter consisting of aluminum cannot be easily detached from the gas nozzle as a whole, but is spread by rubbing or smearing of the tool, which is why the cleaning quality of the existing tools is still lots of room for improvement

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