Brush plating device for flat metal parts

Abstract

The invention discloses an electric brush plating device of a flat plate type metal component. The electric brush plating device comprises a movement control device, a brush, an anode plate and an electric brush plating groove, wherein the brush and the anode plate are fixedly mounted in the electric brush plating groove; a plating component is mounted on the movement control device and is positioned in the electric brush plating groove; the plated surface of the plating component is opposite to the anode plate; the plating component and the anode plate are respectively connected with the cathode and the anode of a direct-current power supply; the bristles of the brush face the plated surface of the plating component; the movement control device controls the plating component to do horizontal reciprocating rectilinear movement in the electric brush plating groove; when the plating component moves in front of the brush, the plated surface of the plating component do friction movement relative to the bristles of the brush. According to the electric brush plating device, the brush and the plating component do relative flexible friction movement in partial time during the whole electric brush plating process, so that the electric deposition speed is accelerated effectively; and a plating layer is prevented from generating pinholes, pocking marks, nodules and the like. Therefore, the quality of the plating layer is improved.

Description

technical field [0001] The invention relates to a metal surface electric brush plating device, in particular to a device for electric brush plating on the surface of flat metal parts. Background technique [0002] At present, the current density allowed by traditional electrodeposition (electroplating) is very limited, generally less than 10A / dm 2 (Except for electroplating chromium), the electrodeposition speed is slow, the production cycle of the coating is long, and the roughness of the electrodeposition coating will increase with the extension of the electrodeposition time, which is prone to problems such as inclusions in the coating and coarse grain size. In practical applications, in order to obtain a bright and fine coating, a certain amount of additives (wetting agent, brightener, leveling agent, etc.) It makes the maintenance of the plating solution difficult, and on the other hand, it will lead to more organic inclusions in the plating layer, which will affect the...

AI Technical Summary

Problems solved by technology

In practical applications, in order to obtain a bright and fine coating, a certain amount of additives (wetting agent, brightener, leveling agent, etc.) It makes the maintenance of the plating solution difficult, and on the other hand, it will lead to more organic inclusions in the plating layer, which will affect the purity of the metal plating layer, and sometimes cause the increase of the brittleness of the plating layer and defects such as poor bonding between the plating layer and the metal substrate.

[0003] And although the existing electric brush plating device has advantages such as simple equipment, small volume, light weight, portability, being convenient to use on the spot or carry out field emergency repair at present, this electric brush plating device has the following defects: first, the plating pen The (anode) material is mostly made of high-purity fine graphite. This plating pen has poor wear resistance and short service life; secondly, the brush plating device is mainly operated by hand, which has low efficiency, high labor intensity for operators, and poor coating quality. Defects such as unstable quality; third, there is a problem of plating solution waste, and more than 40% of the metal ions in the remaining plating solution cannot be effectively reused

Images