Preparation process of novel copper-aluminum transition wire clamp with embedded liner tube

Abstract

The invention discloses a preparation process of a novel copper-aluminum transition wire clamp embedded with a liner tube, and belongs to the field of copper-aluminum transition wire clamps. According to the preparation process of the novel copper-aluminum transition wire clamp embedded with the liner tube, the strength of the novel copper-aluminum transition wire clamp is remarkably improved by enlarging the inner diameter and the outer diameter on the basis of the original wall thickness and welding an aluminum lining; in the welding process, molten aluminum is introduced into a gap formed between the aluminum lining and the inner wall of the binding post, and the pneumatic floating ball is arranged, so that on one hand, the inner wall of the aluminum lining is effectively protected against high-temperature deformation under the action of molten aluminum, on the other hand, large-amplitude vibration is generated when the pneumatic floating ball is vaporized, and the pneumatic floating ball continuously collides with the aluminum bush under the action of the air floating ball, so that downward movement of molten aluminum is effectively accelerated, the pore volume in a welding layer is reduced, the compactness of the welding layer is improved, and the problem of poor contact caused by oxidation of copper and aluminum during use can be effectively avoided.

Description

technical field [0001] The invention relates to the field of copper-aluminum transition clamps, and more specifically relates to a preparation process for a new type of copper-aluminum transition clamp with an embedded liner. Background technique [0002] Copper-aluminum transition clamp is a typical copper-aluminum connection device widely used in the power industry. Copper-aluminum transition clamps are used to connect bus down-leads to outlet terminals of electrical equipment such as transformers, circuit breakers, transformers, disconnectors, and through-wall bushings. [0003] The common failure mode of copper-aluminum transition clamp is the fatigue fracture of the welded structure. Due to the welding method and operating characteristics of the copper-aluminum equipment clamp, the welding surface directly bears the tensile force, and the welding cross-section is relatively small, so the probability of fracture is high, which not only leads to its own service life is l...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a preparation process for a new copper-aluminum transition clamp with an embedded liner. It expands the inner and outer diameters on the basis of the original wall thickness and welds the aluminum bushing, which significantly Improve the strength of the new copper-aluminum transition clamp so that it is not easy to break during use, thereby significantly prolonging its service life and effectively reducing the occurrence of short circuits in high-voltage lines. Liquid aluminum is introduced into the gap, and with the setting of the pneumatic floating ball, on the one hand, it can effectively protect the inner wall of the aluminum bush from being easily deformed due to high temperature under the action of the molten aluminum liquid; The function of the air floating ball makes it continuously collide with the aluminum bushing, effectively accelerating the downward movement of molten aluminum, reducing the amount of pores in the welding layer, improving the density of the welding layer, and effectively avoiding poor contact between copper and aluminum oxidation during use problem occurs

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