Carbon arc gouging carbon rod

Abstract

The invention relates to an air-arc gouging carbon electrode which adopts aluminum or aluminum alloy as the main conductive material. The air-arc gouging carbon electrode comprises a carbon electrode unit and an aluminum / aluminum alloy unit, wherein the carbon electrode unit is provided with a strip-shaped body, the middle of the body is hollow to form a central part, a first opening end is formed on the central part and located at the first end of the body, the central part extends towards the second end of the body to form a second opening end, the aluminum / aluminum alloy unit is injected into the central part in a molten liquid state through the second opening end of the carbon electrode unit by means of pressure, a covered section is formed on the central part of the body after the liquid is cooled and solidified, and the second opening end of the body protrudes outwards to form an exposed section. In this way, consumption of energy needed by combination of traditional aluminum thermal spraying and the carbon electrode can be reduced, the problems that the sprayed metal adhesion amount during thermal spraying is small and evenness of coating thickness is hard to control are solved, metal thermal spraying time can be shortened, metal consumption is reduced, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a carbon rod used in the arc grooving process, especially a carbon arc gouging carbon rod that combines aluminum or aluminum alloy as the main conductive material to replace electroplated copper. Background technique [0002] At present, the carbon rods processed by arc grooving on the market mainly use electroplated copper as the main conductive material of carbon arc gouging carbon rods. Please refer to figure 1 As shown, the traditional carbon arc gouging carbon rod (Gouging Carbon) is that the surface of the carbon rod 10 is electroplated with a copper plate 11, and then coated with a copper coating 12 to reduce the resistance of the electrode rod so as to conduct the high current required to generate the arc. The smoke produced when copper burns at high temperature will be harmful to the human body. [0003] In addition, the existing copper electroplating process produces a large amount of waste water containing copper io...

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a carbon arc gouging carbon rod that uses aluminum or aluminum alloy instead of electroplated copper as the main conductive material, and presses it into the inside of the carbon rod in a molten state, reducing the traditional aluminum fusion spray and carbon rod. Combining the required energy consumption, and improving the problem that the amount of metal sprayed out is small and the uniformity of the coating thickness is not easy to control during spraying

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