SU1558963A1 - Method of obtaining lubricant - Google Patents

Abstract

The invention relates to the production of lubricants, in particular, used in the friction units of machines and mechanisms operating under conditions of high contact loads. The goal is to increase anti-wear and anti-friction properties. Lubricants are obtained from polymer powder, which is subsequently metallized with copper and tin at a tin content in the metal coating of 10-90 wt.% And the total amount of deposited metals on the surface of the polymer particles equal to 30-50% by weight of the polymer. Then, the obtained metal polymer powder is treated with a surfactant — 10–30% aqueous solution of petroleum sulfonic acids and injected into a soapy plastic lubricant in an amount of 1–5 wt.%. The use of the lubricant obtained allows a 1.5-2.5 fold decrease in the wear rate of the rubbing surfaces and a 1.5-1.7 fold friction loss, which leads to an extension of the service life of the friction units, a reduction in the cost of mechanical and electrical energy, and an increase in Efficiency 2 tab.

Description

one

(21) 4422885 / 31-04

(22) 04/01/88

(46) 04.23.90. Bksh. Number 15

(71) Ivanovo Institute of Chemical Technology

(72) A.A. Kalinin, V.G. Melnikov, N.I. Zamtin, T.F. Yudina and B.K. Kononenko

(53) 621.892.8 (088.8)

(56) USSR author's certificate

 690063, class C 10 M 147/02, 1979.

Ivanov A.A. and others. Improving the reliability of sliding bearings from metal-polymer materials. - Izv. universities. Ser. Textile Technologists, 1984, No. 1, p. 91-93.

Yudina T.F. The chemical method of copper plating of powdered materials. - Izv. universities. Ser. Chemistry and Chemical Technology, 1970, K 9, p. 13311335.

USSR author's certificate 667583, cl. C 10 M 125/04, 1979.

USSR Author's Certificate No. 1397479, cl. C 10 M 177/00, 1988.

(54) METHOD FOR OBTAINING LUBRICATION (57) The invention relates to the production of lubricants, in particular, used in the friction units of machines and mechanisms operating under conditions of high contact loads. The goal is to increase anti-wear and anti-friction properties. Lubricants are obtained from polymer powder, which is subsequently metallized with copper and tin at a tin content in the metal coating of 10-90 wt.% And the total amount of deposited metals on the surface of the polymer particles equal to 30-50% by weight of the polymer. Then, the obtained metal polymer powder is treated with a surfactant — 10–30% aqueous solution of petroleum sulfonic acids and injected into a soapy plastic lubricant in an amount of 1–5 wt.%. The use of the resulting lubricant allows reducing the wear rate of the rubbing surfaces 1.5–2.5 times and 1.5–1.7 times the friction loss, which leads to a prolongation of the service life of the friction units, a reduction in the cost of mechanical and electrical energy, and an increase in the efficiency . 2 tab.

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The invention relates to methods for producing lubricants used in the friction units of machines and mechanisms operating under conditions of high contact loads.

The aim of the invention is to increase the anti-antifriction and anti-friction properties of the lubricant.

The method of producing a lubricant involves mixing polymer powders, copper

31

and low-melting metal with a soapy grease, and the polymer powder is preliminarily metallized with copper and tin with a tin content in the metal coating of 10-90 wt.% and a total amount of precipitated metals on the surface of the polymer particles equal to 30-60% of the mass of the holimer. The resulting metal-polymer powder is treated with a 10-30% aqueous solution of petroleum sulfonic acids and injected into a soapy grease in an amount of 1-5 wt.%.

Metallization of polymeric materials in powders can be carried out using diffusion and condensation methods, as well as recovery from a gaseous medium and chemical

by methods (contact, contact-chemical- 2 antifriction properties. Test data

chemical, chemical) about

The best result in terms of anti-wear and anti-friction properties is obtained if the polymer is metallized by means of chemical reduction from metal-containing salts from solutions. In this case, layers of chemically pure metals, highly active in the friction zone, are formed on the surface of the polymer powder (the dispersion of the initial powders is proposed in the range of about 20 to 100 microns).

Example. Polyethylene powder (10 g) is coated with a layer of copper by chemical reduction from a solution, and the copper content is 20% of the mass of the metallized powder. Then the copper-coated polyethylene powder is coated with a tin layer by the method of chemical reduction until the tin content in the metal coating is

35

40

Tables are given in Table. 2

Claims (1)

Invention Formula A method of producing a lubricant by mixing a soapy plastic lubricant with a metallized powdered antifriction filler treated with a surfactant, characterized in that, in order to increase anti-wear and antifriction properties, a polymer metallized with copper and tin when the content of tin in the metal coating is used as an antifriction filler equal to 10-90 May.7 and the total amount of deposited metals on the surface of polymer particles, equal to 30-50% by weight of the polymer, as a surface rhnostno-active agent is used 10-30% aqueous petroleum sulfbkislot and a filler is introduced into the soap grease in an amount of 1-5 wt%. Polyethylene Polystyrene Polyamide Polytetrafluoroethylene 50 50 50 ten 40 40 40 40 50% by weight (the total amount of precipitated metals is 40% by weight of the metallized powder). Without washing and drying operations, the resulting metal-polymer powder is treated until complete wetting in a 20% solution of petroleum sulfonic acids (Petrov contact), and then 3 g (3 wt.%) Of the resulting filler is mixed with 97 g (97 wt.%) Soap plastic base - press grease J - until the powder particles are evenly distributed in the lubricant volume. The lubricant compositions with various parameters of the method are given in table. one. The lubricant compositions obtained are tested to evaluate their antiwear and 0 five five 0 Tables are given in Table. 2 Invention Formula A method of producing a lubricant by mixing a soapy plastic lubricant with a metallized powdered antifriction filler treated with a surfactant, characterized in that, in order to increase anti-wear and antifriction properties, a polymer metallized with copper and tin when the content of tin in the metal coating is used as an antifriction filler equal to 10-90 May.7 and the total amount of deposited metals on the surface of polymer particles, equal to 30-50% by weight of the polymer, as a surface rhnostno-active agent is used 10-30% aqueous petroleum sulfbkislot and a filler is introduced into the soap grease in an amount of 1-5 wt%. Table 1 5 3 Press grease F Litol-24 VNII NP-242 Known lubricant obtained using as a surfactant block copoly ethylene oxide and propylene. Continued table. one table 2 15589638 . Continuation of the table. 2 Test conditions: load 800 N; sliding speed 0.7 m / s; a pair of friction steel 45 (HV 200) - steel 45 (HV 550). Test conditions: load 350 N; sliding speed 0.7 m / s; a pair of friction steel ShH15 - steel ShH15 (HRC 62-65).