Protective coating

 

(57) Abstract:

The invention relates to the field of engineering, in particular to the protection of friction parts from excessive wear and tear. Protection of friction parts from the increased wear is achieved by using a protective coating of the following composition, %: parfocality (SAS) of 0.4 to 6.0; alcohol 3,0 - 7,0; ketone 6,0 - 13,0; Halocarbon 113 74,0 - 90,6. As the alcohols used: ethyl, isopropyl, butyl, allyl, giilowy and cyclohexyloxy alcohols. As the ketones used: acetone, methyl ethyl ketone, Cyclopentanone, acetophenone. table 2.

The invention relates to the field of engineering, in particular to the protection of friction parts from excessive wear and tear.

Known lubricating composition 6 SFC 180-05 (TU-02-1229-82), designed to protect various friction surfaces.

The disadvantage of the composition is variable and uncertain composition perfluorinated polyether, resulting in low reproducibility.

Known lubricant type freaks", which is a surfactant solution in Halocarbon 113 (TU 38.403.646-90) and intended for treatment of various metallic and non-metallic solid surfaces.

Lack of lubrication is the first entity to the invention is a composition for protective (lubricant) cover, containing parfocality and solvent - 1,1-2-trichlorotrifluoroethane (halon-113) (EP N 0165649, class C 08 G 665/00, 1985).

The composition does not provide a uniform, wear-resistant coating.

The objective of the invention is to obtain uniform, abrasion-resistant protective coating.

This object of the invention is achieved in that the protective coating consisting of parfocality and fluorinated solvent - 113 halon, further comprises an alcohol and a ketone in the following ratio of components, about. /%):

Parfocality of 0.4 to 6.0

Alcohol - 3-7

Ketone - 6-13

Halocarbon 113 - Rest

As alcohol use ethyl, isopropyl, butyl, amyl, decroly, cyclohexyloxy alcohols.

As use ketones, such as acetone, methyl ethyl ketone, Cyclopentanone, acetophenone.

The composition can be used in a variety parfocality, for example isopropyl or foretravel ether of perforations carboxylic acid with perftorirovannymi fragments, extraversionintroversion, simple plifier-poly-n-performancelinked, hetero-chain polyesters: copolymer of titrator-p-phenylenediamine with perfo luchetta is the surface of parts and components exposed to increased wear of the friction, is treated with a solution of parfocality of 0.4 to 6.0% concentration in a mixture of freon 113 with alcohol and ketone. The result is formed on the surface a uniform layer of parfocality, 1.5-2.5 times lower wear compared to surface wear, not processed piptochaetium, and 50-80% in comparison with the surface processed "Paleocon".

To determine the uniformity of the coating parfocality in various solvent compositions applied by spray to the surface of the steel plates 45 size 50x50 mm, dried them for 1 h at room temperature and measure the coating thickness in nine points. Formulations of the compositions of the solvents and the results of measurements on the ellipsometer is shown in table. 1.

The data show that the difference between the minimum and maximum thickness of the coating when the coating from the composition of the solvents in 4 - 11 times less than from a solution of Freon.

To determine the resistance of the treated surface to abrasion of the conductor tests on the shaft of steel 45, the shaft diameter of 40 mm, with dry friction it still spherical indenter diameter minutes. After the tests were made to measure trace of wear on the shaft by means of a microscope of the microhardness tester AMT-3.

The coating on the shaft was applied by spray, brush or white rags. The compositions of the tested compositions, methods of application and the results are given in table. 2.

And the table shows that the use of a composition of solvents allows you to increase resistance 1.9-2.2 times compared with the lubricating composition SFC 180-05 and 1.7-1.8 times compared with lubrication type Freaks".

Protective coating consisting of parfocality and fluorine-containing solvent - refrigerant-113, characterized in that it further comprises an alcohol and a ketone in the following ratio of components,%:

Parfocality of 0.4 to 6.0

Alcohol - 3 - 7

Ketone - 6 - 13

Fluorinated solvent - refrigerant-113 - the Rest is up to 100C

 

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