SU949023A1 - Apparatus for applying electrodeposited coatings - Google Patents

Description

one

The invention relates to electrolytic coatings and can be used in various fields of mechanical engineering for the production and repair of parts for bearing shells and bushings.

A device for the manufacture of articles made of abrasive materials is known, comprising an electrolyte bath, anodes, a belt drive pulley, a roller and two bushings between which a part is disposed. The abrasive particles are pressed into the surface to be coated by means of a belt tensioned on the outer surface of the part 11.

However, this device is not applicable to the electrolytic coating of the sleeve holes and bushings.

The most common: the device proposed by the technical essence is a device for applying electrolytic coatings containing an electrolyte bath, a cathode with a shield plate, and an anode with

an anode holder and rollers, one of which is an anode 2.

However, this device has a low productivity due to the absence of indentation of the particles that make up the nojcpHTHH composition, B, on the surface to be coated. Tezhucheniya large thickness of coatings (over 0.5 mm) causes considerable difficulties, and sometimes impossible at all due to the fact that the roller does not carry out plastic deformation of the irregularities formed during the coating process. In addition, this device has a high consumption of materials that form the coating composition, due to their incomplete use in the deposition of metal and solid particles from a slurry or pasty paste.

The aim of the invention is to ensure the application of thick composite coatings inside an agglomerate and to the production of gel 1: a) Ssc: to {{indentation of the particles constituting the composition of the coating). This goal is achieved by the fact that the electrolytic coating device containing an electrode with an anode holder, a Bairay electrolyte and a roller, is provided with an additional anode bath with a cavity in which an additional bath is mounted radially in the radial direction, the roller is installed in an additional bath, and in the bottom part of the additional bath you filled the hole for the passage of the electrolytic composition through the cavity into the zone of contact of the roller with the workpiece. FIG. 1. shows the device, the general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a section A-A in FIG. Showing the construction of the device according to the second embodiment; no device. In the anode 1 there is a cavity in which an additional bath 2 is located with the possibility of translational movement in the radial direction. The roller 3 is mounted on an axis 4 located in the walls of the bath 2, in the bottom part 5 of which there are openings. In the anode 1, a channel G is made for introducing electrolyte into the coating zone and a channel 7 for exiting the spent electrolyte from this zone. In addition, in the anode 1. there is a channel for supplying a suspension or a pasty mass to its cavity connected to the pump 8 located in the bath 9. Pressure sensors 1O, an actuator or pressure regulator 11 are connected to the pipe connecting the pump 8 to the anode cavity a pump 12 mounted with an E bath 13 with electrolyte. The coated part 14 is installed in the tool 15 connected to the negative bus of the current source. The anode 1 is connected to the anode holder 16, located 3 machine or basing device and connected to the positive bus of the current source. The device works as follows. In operation, the divider 14 is rotated, and the electrolyte from the van 13 by pump 12 through channel 6 is fed into the gap between the outer surface of the anode 1 and the hole of the part and leaves it through channel 7. This results in the deposition of a metallic coating on the inner surface of the part . As the coating reaches a predetermined thickness, a suspension or paste-like mass enters the cavity of the anode 1 from the bath 9 under pressure, containing particles forming the coating composition, for example densulphylolibdenum. Under the pressure of the mass entering the cavity of the anode 1, the bath 2 moves in the radial direction and presses the roller 3 to the surface to be coated. In this case, the roller 3 is rotated from the rotation of the part due to the forces of friction. The force of the roller 3 is controlled by an actuator or pressure regulator 11 controlled by a pressure sensor 1O. From the cavity of the anode 1, the fed mass through the holes in the bottom part 5 of the bath enters the zone of contact of the roller 3 with the surface of the part to be coated. The pressure force of the rotating roller 3 of the particles making up the coating composition is pressed into the metal layer deposited on the inner surface of the part. In this case, plastic deformation of irregularities formed in the process of metal deposition is carried out. Separate feeding of electrolyte and suspension or paste-like mass containing the coating composition into the electrolysis zone leads to a significant reduction in their consumption compared with the supply of one suspension mixed with electrolyte. . The second design of the proposed device (Fig. 3) is applicable for electroplating of electrolytic coatings. In this case, the additional bath 2 is absent, and the roller 3 is located in the cavity 17 of the anode also with, the possibility of translational movement in the radial direction, which it carries out under the pressure of the electrolyte supplied to the cavity 17 through the channel 18. Through this, the roller is pressed to surface details. In comparison with the known, the proposed device for applying composite coatings provides an increase in the performance of coatings by a factor of 3-5, coating with a thickness of more than 1 mm, and a reduction in the consumption of materials constituting the coating composition by more than 10 times. Formula and Shadows A device for applying electrolysis coatings, holding the anode with an anode holder, an electrolyte bath and a roller, from. Characterized by the fact that, in order to ensure the application of thick composite coatings inside the holes and increase productivity by mechanically pressing the particles that make up the coating composition, it is equipped with an additional bath, the anode is filled with a cavity in which radial movement in the radial direction is additionally mounted bath, roller is installed in an additional bath, and in the bottom part of the additional bath is made c “v. A version for feeding the electrolytic composition through the cavity of the anode to the zone of contact of the roller with the workpiece. Sources of information taken into account in the examination 1. US patent number 3785938, cl. 204-16, published. 1974. 2. For Japan No. 53-9177 of Kka From 25D 17/10, published. 1978

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Claims (1)

Claim Device for applying electrolytic coatings, containing anode with anode holder, bath for electrolyte and roller, from. kicking in that, in order to ensure the application of thick composite coatings inside the holes and increase productivity due to the mechanical pressing of the particles making up the coating composition, it is provided with an additional bath, the anode is made with a cavity in which an additional bath is mounted with the possibility of translational movement in the radial direction, the roller is installed in an additional bath, and in the bottom of the additional bath is made from— 5 hole for feeding the electrolytic composition through the anode cavity into the contact zone of the roller with the workpiece.