Preparation method of full-contact conductive contact

Abstract

The invention relates to the technical field of conductive contact preparation, and discloses a preparation method of a full-contact conductive contact. The preparation method comprises the following steps: machining a pretreatment piece of a conductive contact into a semi-finished product piece, wherein the semi-finished product piece is characterized in that machining allowance is reserved in an inner hole in a petal opening end of the conductive contact, and other parts are machined according to design requirements; drilling an outer circular hole in the semi-finished product piece, milling and cutting the semi-finished product piece to form a plurality of petal bodies, and then utilizing an elastic supporting auxiliary turning tool to assist in machining the inner hole in the petal opening end of the conductive contact to obtain a finished product piece; and performing post-processing on the finished product piece to obtain a full-contact conductive contact, wherein a curvature radius of each petal body of the full-contact conductive contact is the same as a curvature radius of an excircle of a matched moving contact. According to the invention, point contact is raised to line contact when a contact works cooperatively, and contact surfaces can be highly matched to form full-contact cooperation, so that the contact area is increased, abrasion is reduced, sharp point discharge is eliminated, and the service life of a conductive contact and a contact part is prolonged.

Description

technical field [0001] The invention relates to the technical field of conductive contact preparation, in particular to a method for preparing a full-contact conductive contact. Background technique [0002] The conductive contact is a key part of the high-voltage switch. The high-voltage switch is turned on and off by it. Its service life determines the life of the high-voltage switch, which in turn determines the safe operation of the high-voltage power grid. When the conductive contact is working, it relies on its own rigidity to generate a pressing force on the moving contact. Therefore, in addition to requiring high conductivity, the conductive contact parts also require high strength and rigidity. Pay enough attention to product design, material selection, processing technology and quality control. With the improvement of the voltage level of power transmission and transformation lines and the increase of transmission capacity, the traditional forming process of high-...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a full-contact conductive contact, which solves the problems of short service life and low safety factor of the contact caused by incomplete contact between the conductive contact and the movable contact

Images