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Dry film lubricant used for metal parts

A technology for dry film lubricants and parts, applied in lubricating compositions, petroleum industry, etc., to achieve the effects of less scratches and improved wear resistance

Inactive Publication Date: 2011-09-28
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, there are few studies on organic bonded dry film lubricants at present, and their extreme pressure and anti-wear properties also need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After degreasing, derusting and phosphating, the 45 steel samples were sprayed with the dry film lubricant of the following formula under the pressure of 0.20~0.35MPa and heated and cured at 180°C for 45min to form a solid lubricating film with a thickness of 10~15μm. The film adhesion is grade 1, passed the 50cm??kg impact test, and after 48 hours of salt spray test at +35 ℃, 5% NaCl, there is no red rust on the surface of the working coating. The ring block dry friction and wear test was carried out under the conditions of load 100 N and sliding speed 0.419 m / s using MM-200. In the dry film lubricant film-forming substance, by weight percentage: 62 parts of epoxy acrylic resin bonding matrix; 24 parts of solid lubricant; 0.4 part of span-80; 4 parts of talc powder coated with epoxy; 3 parts of covered alumina; 5 parts of antimony trioxide; 1.6 parts of ferric oxide. Graphite is used as the solid lubricant, and when no magnetic particles are added, the wear rate durin...

Embodiment 2

[0027]After degreasing, derusting and phosphating, the 45 steel samples were sprayed with the dry film lubricant of the following formula under the pressure of 0.20~0.35MPa and cured at room temperature for 24 hours to form a 10~15μm thick solid lubricating film. The strength is grade 1, passing the 50cm??kg impact test, and after 48 hours of salt spray test at +35 ℃, 5% NaCl, there is no red rust on the surface of the working coating. The ring block dry friction and wear test was carried out under the conditions of load 100 N and sliding speed 0.419 m / s using MM-200. In the dry film lubricant film-forming substance, by weight percentage: 62 parts of epoxy phenolic resin bonding matrix; 24 parts of solid lubricant; 0.4 part of span-80; 4 parts of titanium dioxide coated with epoxy; 4 parts of alumina; 4 parts of antimony trioxide; 1.6 parts of ferric oxide. The solid lubricant is composed of graphite and molybdenum disulfide, and the mass ratio is 4:1. When no magnetic partic...

Embodiment 3

[0029] After degreasing, derusting and phosphating the 40Cr steel sample, the dry film lubricant of the following formula is sprayed under the pressure of 0.20~0.35MPa and heated and cured at 60°C for 60min to form a solid lubricating film with a thickness of 10~15μm. The film adhesion is grade 1, passed the 50cm??kg impact test, and after 48 hours of salt spray test at +35 ℃, 5% NaCl, there is no red rust on the surface of the working coating. The ring block dry friction and wear test was carried out under the conditions of load 100 N and sliding speed 0.419 m / s using MM-200. In the dry film lubricant film-forming material, by weight percentage: 70 parts of epoxy silicone resin bonding matrix; 20 parts of solid lubricant; 0.2 part of span-80; 4 parts of aluminum oxide coated with polyacrylate; Acrylate coated silicon carbide 3 parts; lead oxide 2 parts; nickel zinc copper ferrite 0.8 parts. The solid lubricant uses tungsten disulfide. When no magnetic particles are added, th...

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PUM

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Abstract

The invention discloses a dry film lubricant used for metal parts, which comprises the following components in percentage by weight: 10-55% of soli lubricant, 4-10% of wear-resistant additive, 0.2-5% of dispersant, 2-6% of antioxidant, 0.5-2.5% of magnetic additive and 35-80% of adhesive base body. Compared with the prior art, the dry film lubricant has high wear-resistant performance and low scratch on friction surfaces. The dry film lubricant can be applied in the permanent lubrication of various mechanical metal parts, the initial running-in of pistons, cams, cylinders and like, the repairing of the parts of railway vehicles, aircrafts, ships and like, the fretting wear protection of steel rope shock absorber, mine elevator and bridge steel rope and the like.

Description

[0001] technical field [0002] The invention belongs to the technical field of lubricant preparation, in particular to a dry film lubricant used for metal parts and its application method. Background technique [0003] Dry film lubrication is a technique in which solid lubricants, wear-resistant additives, etc. are firmly bonded to the moving friction surface by means of a binder to play a protective role in wear-resistant lubrication. The material forming a solid lubricating dry film is called a dry film lubricant. The dry film formed by the dry film lubricant can act as a solid lubricant under dry friction conditions, and can also be used together with lubricating oil, grease, and paste, as well as an anti-corrosion protective film. It is also used for surface repair or surface wear that has been worn Anti-sticking and anti-fouling (dirt), etc. Widely used in friction parts of aviation, aerospace, machinery, transportation, petrochemical, construction, shipbuilding, ele...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06
Inventor 乔红斌夏爱林古绪鹏陈翔郑祎群吴胜华杨建国伊廷峰申再朋
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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