General die for conducting thermite welding on grounding grid

Abstract

The invention discloses a general die for conducting thermite welding on a grounding grid. The general die comprises a die body. The die body is internally provided with a reaction cavity, a flow guiding groove and a fusion cavity from top to bottom. The bottom of the reaction cavity is connected with the flow guiding groove. Gaskets, thermite welding powder and pyrophoric powder can be put into the reaction cavity. The fusion cavity is horizontally formed in the bottom of the flow guiding groove. Fixed storage cavities are formed in the two horizontal sides of the outer surface of the die body correspondingly, wherein the fixed storage cavities communicate with the fusion cavity. The fixed storage cavities are each internally provided with a detachable die block. The diameter of each dieblock is the same as the inner diameter of the corresponding fixed storage cavity. An inner hole is formed in the end face of each die block in a penetrating manner, wherein each inner hole can allowa conductor needing to be welded to penetrate. Meanwhile, the die body is provided with an ignition opening and a shielding cover, wherein the shielding cover is matched with a cover body to be used.Smoke and dust generated in the burning process and inhaled by workers when ignition is conducted are reduced. When the general die is used for outdoor construction, the single die and the die blockswith different holes diameters of the inner holes are only needed for the conductors which are of the same specification and different sizes and need to be welded; and the effect that the conductors which are of the same specification and different sizes and need to be welded are welded through the same die is achieved.

Description

technical field [0001] The invention relates to aluminothermic welding, in particular to a general mold for aluminothermic welding of grounding grids. Background technique [0002] The grounding device can introduce the leakage current, static charge and lightning current that may be generated on electrical equipment and other production equipment into the ground, so as to avoid personal electric shock and possible fire, explosion and other accidents. It is necessary to ensure the normal operation of electrical equipment and personal safety. An electrical safety measure taken. With the development of the power system, its requirements for grounding devices are becoming more and more stringent. A long-term, reliable and safe grounding system is the fundamental guarantee for maintaining the stable operation of the power system and ensuring the safety of operating personnel and electrical equipment. The key to ensure the long-term safe and reliable operation of the grounding s...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that special molds are required for different joints of thermite welding, the present invention provides a general mold for thermite welding of grounding grids, which can be used for thermite welding of joints of the same specification and different sizes, which improves the convenience of transportation and reduces the cost. Suitable for strand-stranded wire, strand-steel plate, steel plate-steel plate and other forms of welding

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