Device and method for implementing local electroplating of parts

Abstract

The invention discloses a device and a method for implementing local electroplating of parts. The device comprises a copper bottom plate, a copper cover plate, a conductive bar, screws, leads and a metal plate; when a blind hole part is locally electroplated, the non-electroplating part of the part is put into a groove of the copper bottom plate, then the copper cover plate is pressed on the metal plate, and the to-be-electroplated part of the part is naked outside the copper cover plate; when the local surface of a non blind hole part is electroplated, the non-electroplating part of the part is put into the groove of the copper bottom plate, and the to-be-electroplated surface is naked outside. The method comprises the following steps of: processing the copper bottom plate and the copper cover plate, chemically removing oil, coating a layer of vinyl perchloride varnish on the lower surface of the copper bottom plate and the upper surface of the copper cover plate respectively, airing the paint layers, fixing the part to be electroplated on the copper bottom plate, pressing the copper cover plate as required, then vertically hanging the whole assembly in the center of an electroplating bath, and switching on a power supply. The device has simple structure, is easy to process, accurately positions the plated surface of the part, saves the time and reduces the production cost.

Description

【Technical field】 [0001] The invention belongs to the technical field of surface treatment, in particular to a device and method capable of realizing partial electroplating of parts. 【Background technique】 [0002] At present, there are mainly two traditional ways to achieve partial electroplating of parts: one is to process the parts to be electroplated to a size 1-2mm larger than the actual requirement, then put them into a metal basket, and fix them on the conductive rods with copper wires. The overall electroplating is carried out first, and after the electroplating is completed, the end face of the part that does not need electroplating is processed to the required size. The second is to apply perchlorethylene varnish to the place where electroplating parts do not need to be electroplated. After the overall electroplating is completed with a metal basket, acetone is used to remove the perchlorethylene varnish. The above two electroplating methods not only seriously was...

AI Technical Summary

Problems solved by technology

The above two electroplating methods not only seriously waste electroplating materials and production time, but also cannot accurately position the parts, cannot guarantee the uniformity of electroplating, and cannot guarantee the electroplating area, so that the integrity of the coating is easily damaged, resulting in spots, Roughness and unevenness of deposition and coating

In addition, especially when the blind hole of the part is partially electroplated, it is often found that there is a thick coating around the blind hole, while there is only a thin layer inside the blind hole, and the coating is not bright and flat enough. , affecting the assembly quality and service life of parts

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