SU960234A1 - Grease - Google Patents

Description

This invention relates to lithium plastic lubricants. Lithium plastic lubricants are known, used in various friction units from rolling mill bearings to units of t) precision instruments and domestic mechanisms, in automobile and aviation friction units l. Plastic lubricants based on petroleum and synthetic oils thickened with lithium soaps with the addition of extreme pressure additives and antifriction additives, which are introduced into the composition of lubricants to improve their anti-wear and anti-wear properties, are well known and widely used in the industry. Such greases are water resistant, chemically stable, not thermally stable, and workable in the temperature range from minus 50 to + 150 ° C 2 and 3. However, such greases have low performance under such loads. The closest to the invention in terms of the composition of the components is a plastic lubricant containing petroleum oil, lithium carbon stearic acid and molybdenum disulfide 14. A disadvantage of the known lubricant is that it is inoperable under particularly high loads. Velines - the critical load of welding stresses when testing for CSM Rhenium usually do not exceed 900 and 000 N, respectively. The aim of the invention is to increase the anti-wear and extreme pressure properties of the lubricant while maintaining its rheological and other properties. This goal is achieved by the fact that a grease containing oil, lithium fatty acid soap and molybdenum disulfide additionally contains fluorinated carbon, phenyl | -naphthylamine and, as a fatty acid lithium soap, the lubricant contains lithium soap of stearic or 12-hydroxystearic acids with the following content of components, wt.%: Lithium soap of stearic or 12-hydroxy-stearic acids 10-20 Molybdenum disulfide 2–0, a 0-20%, or a 0%, or a 0%, or a 0%, or 20%, or 20%, or 20%, or 20%, or 20%, or 20%, should be applied. , 5-1.0 Oil oil oil oil For preparing lubricants, molybdenum disulfide DM-1 or DM-3 (TU 48-19-133-75), fluorinated carbon (TU 6-02-2-599-79), phenyl -fb-naphthyl sin (TU b-0 -2210-72) The lubricant is prepared in the usual way. When grease, IMP or other petroleum oil thickens lithium-N-stearic or 12-hydroxystearic acid, the HOMOGENEOUS melt is poured to a baking tray at room temperature (about) for cooling. The total cooking time is about an hour. After a day, the lubricant is rubbed through a metallic mesh. Antifriction additives molybdenum disulfide and carbon fluorinated in a ratio of 4: 1 or 1: 4, depending on whether / what properties should be given to the lubricant, as well as the additive phenyl-naphthylamine is introduced into the lubricant at the end of cooking at. Prepared 10 samples of lubricants. The compositions of plastic greases are given in table. one.

Content, wt.%, In the composition

Components The results of testing the antiwear and extreme pressure properties of lubricants are presented in Table. 2. The antiwear and extreme pressure properties of lubricants are determined on a four ball friction machine according to GOST 9490-75. ; The results of testing the rheological properties and colloidal stability of lithium greases are presented in Table 3. The rheological characteristics (tensile strength, viscosity) and colloidal stability are determined by standard methods (Table 3). As can be seen from the data table. 2, the proposed lubricants provide higher antiwear and extreme pressure properties compared to the known. The results of the study of the rheological properties of lubricants (Table 3) show that viscosity, tensile strength and colloidal stability are maintained in accordance with the requirements imposed under conditions of operation. Table 1

Lithium soap stearin 10 10th acid Lithium MUSHO 12-hydroxystearic acid Molybdenum disulfide Carbon fluorinated Phenyl-naphthylamine Petroleum oil A mixture of 1–7 uses oil IMP; 1: 1 spun AU and industrial AND .- „.

Napheuzka, H

Composition

bitch

 welds

700 900 10 0,

Wear rate (with a load of 450 N), mm

1800

0.70 0.67 2000 0 10 10 20 10 20 5 10 20 2, 5 0.5 1.0 0.5 0.5 1.0 1.0 0.8 The rest up to 100 in compositions 8 - 10 is a mixture of oils 50A. V Table 2

Continued table. 2

9602348

Sources of information, 3, USSR Copyright Certificate

taken into account in the examination of 362865, C, C 10 M 5/14, 1973.

1.Sinitsyn B, B. Selection and application- 4. Sinitsyn V, B. et al. Effects of greases. M., Chemistry, Molybdenum Disulfide on Properties 1974, p. 416. lithium greases .- Chemistry and technology 2. The copyright certificate of the SSOR fuels and oils, 1976, No. 9, 395428, cl. P.10 m 3/32, 1973.s. 51-55 (prototype).

Claims (1)

Claim A grease containing petroleum oil, lithium soap of fatty acid and molybdenum disulfide, such as the fact that, in order to increase the antiwear and extreme pressure properties of the lubricant, it additionally contains fluorinated carbon, phenyl p-naphthylamine as a lithium fatty acid soap, the grease contains lithium 55 soap of stearic or 12-hydroxy-> stearic acid in the following components, wt.%: Stearic Lithium Soap 60 or 12-hydroxystearic acids 10-20 Molybdenum disulfide 2-10 Fluorinated carbon2-20 Phenyl - ^ - naphthylamine 0.5-1.0 65 Petroleum oil Else