Cable and pin tube cavity contact pair as well as apparatus and method for brazing cable connector

Abstract

The invention provides a device and a method for brazing cables and pin tube cavity contact pairs as well as cable joints, belonging to the technical field of cable connection in the electric power industry. The device is characterized in that: the device comprises a pair of graphite or graphitized electrodes I used for elastically clamping a weldment matrix, an electric control system III generating low voltage and high current, as well as a brazing operation table IX; a voltage between 2 and 15 V and a current between 50 and 500 A are transmitted to a welded piece matrix through the graphite electrodes I with the resistance between 5 and 60 omega, and solder in a pin tube cavity or a wiring hole of the welded piece matrix is heated to be between 130 and 600 DEG C, so as to complete the brazing connection of the cables and the pin tube cavity contact pairs or the cable joints. The device has the advantages that the good connection among the cables, the pin tube cavity contact pairs or the cable joints is realized, and brazing equipment is high in machining efficiency, good in safety protection property, high in automation degree, convenient to operate and good in agreeableness.

Description

technical field [0001] The invention belongs to the technical field of cable connection in the electric power industry, and relates to a brazing device and method for a cable wire and a pin lumen contact couple and a cable joint. Background technique [0002] Compared with traditional fusion welding, the biggest feature of brazing is that the base metal does not melt, the working temperature is low, the welding deformation is small, and the dimensional accuracy of the weldment is high. Therefore, the brazing technology is especially suitable for forming base metal or base metal that is difficult to melt Welding, such as electronics industry, instrumentation industry, aerospace technology, machinery manufacturing technology, etc. [0003] However, there are serious defects and deficiencies in the traditional brazing connection technology and devices, which lead to large differences in the processing quality (brazing depth, verticality, etc.) The welding efficiency of the equ...

AI Technical Summary

Problems solved by technology

During the brazing process, the temperature of the high-temperature solder should reach about 300-450°C. If it is too high, it will cause oxidation of the substrate surface and the solder, resulting in poor quality of the substrate. Therefore, there is a requirement for the upper limit of the brazing temperature; during the brazing process , the temperature of the high-temperature solder should not be too low, otherwise the solder cannot be completely melted, so that the cable, solder and pin lumen contacts cannot completely wet the weldment, resulting in clamping, weak welding, and high resistivity

The brazing time of the contacts should not be too long. If the time is too long, the oxidation of the weldment will exceed the standard.

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