SU753931A1 - Unit for electrolytical cleaning of metallic surfaces - Google Patents

Description

I

This invention relates to the field of electrolytic cleaning of surfaces.

A device for the electrolytic treatment of metal surfaces is known, which contains a flexible electrode, an elastic seal made of an insulating material, fixed along the perimeter of the electrode and a nozzle for supplying and discharging electrolyte 1. This device is the closest to the claimed by its technical essence and achievable ry result.

However, when using this device, there is no optimal separation between the surface areas of the flexible electrode and the areas of the surface to be treated.

In addition, small irregularities can lead to electrolyte spreading over jg of the surface, which is dangerous when cleaning surfaces from radioactive contamination, and short circuits, as well as poor-quality processing.

The purpose of this invention is to improve the quality of cleaning surfaces of various configurations.

The goal is achieved by the fact that the device is equipped with a flexible diaphragm and locking elements located between the electric rod and the diaphragm, while the flexible diaphragm is made of an elastic porous material, and the locking elements are made of a non-conducting material.

FIG. 1 shows a general view of the device in section; in fig. 2 is a section A-A in FIG. one.

Claims (2)

The device contains an electrode 1, an elastic seal 2 made of an insulating material, fixed along the perimeter of the electrode 1, shtyutsera 3 and 4 for the supply and removal of electrolyte, the channels 5 inside the side stops 6, the diaphragm 7, made of elastic porous material, for example fabric, and located between the electrode 1 and the treated surface. The diaphragm 7, the elastic seal 2 and the electrode 1 form a closed electrolyte space 8. The device body consists of cheeks 9, hingedly connected to each other and with electrode 1. Between electrode 1 and diaphragm 7 there are fixing elements 10 of non-electrophobic material. The handle 11 is connected to the housing. The device works as follows. The device is installed on the treated surface. If the surface has a different from flat, the gravity of the device, as well as the operator's force are transmitted through the cheeks 9 and the stops 6 to the flexible electrode 1, as a result, the electrode takes the form close to that of the surface to be treated. Through the fitting 3, the electrolyte is supplied to the electrolyte space 8. Due to the porosity of the diaphragm 7, the surface to be treated is moistened with electrolyte. When applying the electric field of the metal, with contamination it is transferred from the metal to the electrolyte. The spent electrolyte through the channels 5 and the nozzle 4 is discharged with a suction device. In operation, the device can move on the treated surface without interrupting the cleaning process. As the device moves on an uneven surface, electrode 1 will change its shape due to its own flexibility and swivel with cheeks 9 ". The presence of locking elements 10 of non-conductive material ensures an optimal cleaning process and eliminates the possibility of short-circuiting; between the electrode 1 and the treated surface. At the end of the treatment, the power supply is first switched off, then the exhaust electrolyte suction system is interrupted. When the device is removed from the surface, the electrode 1 returns to its original flat state under the action of its own elastic force, or under the action of springs. The device allows cleaning of metal surfaces of various configurations - flat, cylindrical, both horizontal and inclined. The possibility of the spread of electrolyte prevents corrosion of metals, increases the safety of work, especially when cleaning from radioactive contamination. The device can be used for cleaning from various contaminants, including radioactive, ac, and for electrolytic polishing and etching. Claim 1. Device for electrolytic cleaning of metal surfaces, Containing an electrode made in the form of a flexible plate, an elastic seal made of an insulating material, fixed along the perimeter of the electrode and the choke hole of the stock a and drainage of the electrolyte, In order to improve the quality of cleaning surfaces of various configurations, it is equipped with a flexible diaphragm and fixing elements located between the electrode and the diaphragm. 2. The device according to claim 1, wherein the flexible diaphragm is made of an elastic porous material, and the fixing elements are made of a non-conducting material. Sources of information taken into account in the examination 1. USSR author's certificate 45784, cl. C 25 D 5/06, 1935.