SU1423284A1 - Apparatus for applying coatings from metallic powders on the internal cylindrical surfaces of articles - Google Patents

Abstract

The invention relates to a device for coating metal powders on the inner cylindrical surfaces of products. The purpose of the invention is the expansion of technological capabilities by adjusting the diameters of the surfaces being restored and improving the accuracy of the coating geometry. The part is placed in the housing 1. The cam 16 is turned on the axis 20 and, by changing its radius, one achieves the required diameter, which must be obtained from Bosstan in the poured hole. The cam is fixed in the required position with a nut 18, and the U-shaped rods 9 are bolted 13. The HDTV 6 inductor is turned on, heating the part with the powder layer to the sintering temperature of the coating material with the BASIS. At the same time, an additional housing with a cam and deforming rollers 7 is rotated. As a result, the rollers 7 form a geometric surface of high accuracy and quality. 2 Il. (L

Description

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The invention relates to powder metallurgy, in particular, devices for applying metallic coatings on internal surfaces.

I cylindrical parts - (bodies of rotation).

The aim of the invention is to expand the technological capabilities by adjusting the diameters of the surfaces to be repaired and improving the accuracy of the coating geometry.

FIG. Figure 2 shows the assumed device, general view, section of FIG. 2 - section A-A.

The device includes a housing 1 mounted with rotation on the axis 2 from the drive motor. The detail 3 is fixed in housing I with the required position by a nut 18, U-shaped forks 9 are also fixed with bolts 13. The HDTV inductor 6 is turned on, heating the part 3 s powder coating 5 to the sintering temperature of the material. Cover with the main. At the same time, they rotate and communicate the vertical feed of the processing head (body 14, U-shaped plugs. 9 and cam 16) to part 3. As a result, rollers 7 form a geometric surface of high accuracy and quality. Independent rotation of the housing 1 and the roll head allows the coating formation process to be carried out in high modes, as the rotational speeds add up. After finishing the process

by the power of end screws 4. Heating of the detail of the formation of the coating turns off 3 with a steam coating covering 5. induction installation, the drive is rotated With the help of an inductor 6 covering part 3. The rolling rollers 7 are mounted on axles 8 with the possibility of rotation and fastened to Г1-об-25 with different plugs 9 by means of pins 10, which pass in transverse holes x axes 8. U-shaped plugs 9 are installed with the possibility of

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diagonal expansion on shanks 11 mounted on keys 12 with the possibility of fixation by bolts 13 in an additional cylindrical housing 14 connected to an additional drive motor 15. The end surfaces of the forks 9 contact with the outer surfaces of the cam 16, forming the profile of which (pos. 7 in FIG. 2) made by Archimedean

 spirals. The cam 16 is set to neither the speeds of both the drive angular rotation and locking devices. Using a cam

parts of the part, and the rolling head is led out of the cavity of the hardened part. The process takes 40-50 seconds.

The use of rollers installed in the U-shaped forks with the possibility of radial expansion allows the internal diameter of the product to be restored to be adjusted over a wide range (30-500 mm), which greatly expands the technological capabilities of the known devices.

The introduction of an additional drive motor makes it possible to increase the productivity of the process of restoring the part by approximately 1.5 times compared with the existing methods due to the addition in position of the nut 18., a washer 19 on the axis 20 of the cylindrical additional body 14.

The device works as follows.

Item 3 is placed in the housing 1 with a pre-applied centrifugal method of metal coating or with a ring of tape of metal carbide powder, bonded with a plasticizer. Turning the cam 16 on the axis 20, changing its radius p (figure 2) to a value o, at which the point of contact P-ob-:, of a different fork is indicated by point N, the required diameter is obtained, which must be obtained from the hole being restored. Fixative cam

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Its profile, which is made on an Archimedean spiral, makes it possible to continuously adjust the diameters of the inner surfaces of the parts being restored with high accuracy. This ensures the obtaining of internal surfaces up to 7 square meters, which is 2–3 times higher than the accuracy of the geometry of surfaces formed with the help of a known device.

Claims (1)

Invention Formula Apparatus for coating metal powders on intra cylindrical surfaces of products comprising a housing, a housing rotation drive, cylindrical defor neither the speeds of both drive motors. Use cam obra parts of the part, and the rolling head is led out of the cavity of the hardened part. The process takes 40-50 seconds. Use of the nakashyushchy rollers established in P-shaped forks -. This can be radially expanded to allow the inner diameter of the item to be restored to be adjusted in a wide range (30-500 mm), which greatly expands the technological capabilities of the known devices. The introduction of an additional drive motor makes it possible to increase the productivity of the part recovery process by about 1.5 times compared with existing methods due to the complexity Its profile, which is made on an Archimedean spiral, makes it possible to continuously adjust the diameters of the inner surfaces of the parts being restored with high accuracy. This ensures the obtaining of internal surfaces up to 7 square meters, which is 2–3 times higher than the accuracy of the geometry of surfaces formed with the help of a known device. Invention Formula A device for coating metal powders on the inside cylindrical surfaces of products, comprising a housing, a housing rotation drive, cylindrical deforming rollers rotatably disposed in U-shaped forks with shanks, and a heat source, technological capabilities by adjusting the diameters of the surfaces being restored and increasing the accuracy of the coating’s geometry; it is equipped with an additional housing with an axis, an additional drive puppies and cam forming a profile of which you filled with an Archimedean coil, with U-shaped plugs placed in an additional case with the possibility of radial reciprocating movement on the shank and fixation, the cam is mounted on the axis of the additional case with the possibility of angular rotation, fixing and contacting with the blind end surfaces of the forks, and the additional drive is connected to the additional housing ...  W