Cable especially for electric welding machine

Abstract

The invention relates to a cable especially for an electric welding machine. The cable comprises a conductor, a wrapped belt protective layer, a braided protective layer and a TPV double-protective layer. The conductor is formed by a plurality of thin copper wires based on first binding and second twisting, wherein the elongations of all copper wires are larger than 25%. A heat-resistant polyester-film insulating tape is processed to form the wrapped belt protective layer. The braided protective layer is formed by braiding of high-strength aromatic hydrocarbon fiber filaments. Two sulfuration-free thermoplastic dynamic vulcanized rubber layers are extruded together to form the TPV double-protective layer. The provided cable has characteristics of high anti-distortion degree, high tensile strength, high flexibility, small structure, light specific gravity, excellent anti-aging performance, good environment protection and flame-retardant effects, excellent integrated performances, easy installation, low failure rate, and high reliability and is integrated with multiple functions; the welding working efficiency is improved; the operation convenience is enhanced; and the blank in the welding field is filled. And the cable especially can be applied to welding equipment work and field work in a special environment.

Description

Technical field: [0001] The invention relates to a special cable for an electric welding machine, which is suitable for use in severe and complex environments. Background technique: [0002] Welding machine cables require a very complex use environment. The cables need to be moved, twisted and released frequently. With the dragging of continuous and frequent reciprocating motions, the cables in use are always in a state of dynamic winding motion, and are vulnerable to damage during release. Scratching and rubbing of sharp steel components, and the use of complex environmental conditions, such as sunlight, boiling water, and corrosion of muddy water, engine oil, acid and alkali liquids, etc., sometimes encounter hot welded parts. During this process, the cable is being dragged Generally in a free state, the conductor of the cable bears the main moving traction. During the movement, the bending radius of the cable is only a few times of its own outer diameter. After thousand...

AI Technical Summary

Problems solved by technology

After thousands of reciprocating movements, under high-speed and high-frequency conditions, the copper stranded conductors of ordinary flexible cables often suffer from yield fatigue and broken cores, with only one to two months of service life and no resistance to mechanical forces. Protective layer, and the protective layer is often made of ordinary rubber material, which is prone to cracking when it is frequently twisted and moved

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