Preparation process of a liner-lined copper-aluminum transition clamp

Abstract

The invention discloses a preparation process of a new type of copper-aluminum transition line clamp with an embedded liner, which belongs to the field of copper-aluminum transition line clamps. The inner and outer diameters are enlarged, and the aluminum bushing is welded to significantly improve the strength of the new copper-aluminum transition clamp, so that it is not easy to break during use, prolongs the service life, and effectively reduces the occurrence of high-voltage line short circuits. Aluminum liquid is introduced into the gap formed between the bushing and the inner wall of the terminal. With the setting of the pneumatic float, on the one hand, it can effectively protect the inner wall of the aluminum bush from deformation due to high temperature under the action of molten aluminum liquid. On the other hand, when the pneumatic float vaporizes A large vibration phenomenon is generated, and with the function of the air float ball, it continuously collides with the aluminum bushing, effectively accelerating the downward movement of the molten aluminum, reducing the amount of pores in the welding layer, improving the density of the welding layer, and can Effectively avoid the problem of poor copper-aluminum oxidation contact during use.

Description

technical field [0001] The invention relates to the field of copper-aluminum transition clamps, and more specifically relates to a preparation process of a liner-embedded copper-aluminum transition clamp. 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 low, but also easily l...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the object of the present invention is to provide a preparation process of the liner-lined copper-aluminum transition clamp, which can significantly improve The strength of the copper-aluminum transition clamp makes it not easy to break during use, thereby significantly prolonging its service life and effectively reducing the occurrence of short circuits in high-voltage lines. When welding, it forms a gap between the aluminum bush and the inner wall of the terminal The aluminum liquid is introduced, and the setting of the pneumatic float can effectively protect the inner wall of the aluminum bush from being deformed due to high temperature under the action of the molten aluminum. The role of the 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 the problem of poor contact between copper and aluminum oxidation during use occur

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