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Inorganic high-temperature-resistant dry-film lubricant

A dry film lubricant, inorganic high temperature resistant technology, used in lubricating compositions, petroleum industry, etc., can solve the problems of friction surface scratches, lack of wear resistance, etc., to avoid scratches, water and weather resistance and chemical resistance. Excellent performance and wide application range

Inactive Publication Date: 2011-10-26
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It does not involve the addition of magnetic materials, the addition of wear-resistant additives and surface coating treatment, but the wear-resistant properties of dry film lubricants that are common at present are still lacking, and at the same time, wear-resistant additives may affect the friction surface after a period of wear. scratch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of dry film lubricant is as follows: Weigh a certain amount of aluminum hydroxide powder, add a certain amount of phosphoric acid, stir to make it pre-react for 2 minutes, add a certain amount of deionized water, heat and stir at 110°C to 170°C for 1 Hours, you can get a clear transparent adhesive liquid bonding matrix; after a certain amount of bonding matrix and deionized water are stirred evenly, then add dispersants, wear-resistant additives, solid lubricants, antioxidants, magnetic additives, respectively, through high-speed Dispersion and sand milling dispersion or ball milling dispersion, and then it can be obtained by filtering and packaging. Dry film lubricant film-forming substances by weight: 54.5 parts of phosphoric acid; 15.9 parts of aluminum hydroxide; 2.3 parts of zinc oxide; 11.4 parts of graphite; 2.3 parts of hexagonal boron nitride; 2.2 parts of talcum powder coated with epoxy resin; 3.4 parts of OP-10; 2.8 parts of antimony tr...

Embodiment 2

[0022] The preparation method is the same as that in Example 1. In the film-forming substance of the dry film lubricant, by weight: 54.5 parts of phosphoric acid; 15.9 parts of aluminum hydroxide; 2.3 parts of sodium silicate; 9.1 parts of graphite; 2.3 parts of tungsten disulfide; 4.5 parts of aluminum oxide coated; 2.2 parts of acrylate-coated zirconia; 3.4 parts of tween-20; 2.3 parts of zinc oxide; 2.8 parts of lead oxide; The adhesion of the coating film is grade 1, microcracks appear on the surface of the 50cm kg impact test, and there is no red rust on the surface of the working coating after 24 hours of salt spray test under the conditions of +35 ℃ and 5% NaCl. The ring-block contact dry friction test under the load of 100N shows that when no magnetic particles are added, the wear amount per unit stroke within 30 minutes is 1.17×10-2 mg / m, and the total wear mass within 50 minutes is 13.8 mg; after adding ferric oxide , The amount of wear per unit stroke within 30min i...

Embodiment 3

[0024] The preparation method is the same as that in Example 1. In the film-forming substance of the dry film lubricant, by weight: 28.0 parts of phosphoric acid; 8.2 parts of aluminum hydroxide; 9.1 parts of graphite; 36.4 parts of tungsten disulfide; 2.3 parts of hexagonal boron nitride; 4.6 parts of coated fumed silica; 2.2 parts of silicone-coated zirconia; 2.3 parts of silicone-coated alumina; 2.7 parts of tween-20; 2.8 parts of lead oxide; 1.4 parts of manganese zinc ferrite share. The adhesion of the coating film is grade 1. There are microcracks on the surface of the 50cm??kg impact test. After 24 hours of salt spray test at +35 ℃ and 5% NaCl, the surface of the working coating has no red rust. The contact dry friction test of the ring block under the load of 100N shows that when no magnetic particles are added, the wear amount per unit stroke within 30 minutes is 2.46×10-2 mg / m, and the total wear mass within 50 minutes is 15.5 mg; adding manganese, zinc and iron Aft...

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PUM

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Abstract

The invention discloses an inorganic high-temperature-resistant dry-film lubricant which is prepared from the following components in percentage by weight: 10-50% of solid lubricant, 4-10% of antiwear additive, 0.2-5% of dispersant, 2-6% of antioxidant, 0.5-2.5% of magnetic additive and 35-80% of binding matrix. The dry-film lubricant disclosed by the invention has the advantages of favorable antiwear property, small scratch on the wear surface, and wide range of application temperature, and is especially applicable to lubricating and antiwear application on the surface of a metal substrate part under high-temperature conditions.

Description

technical field [0001] The invention belongs to the technical field of lubricant preparation for solid lubrication, and in particular relates to a high-temperature-resistant dry film lubricant bonded with an inorganic binder and a preparation method thereof. Background technique [0002] Dry film lubricants are solid lubricants, wear-resistant additives, etc., which are firmly bonded to the friction surface where relative movement occurs by means of a binder, and play a protective role in wear-resistant lubrication. It can be sprayed, brushed, dipped, etc. The dry film lubricant is coated on the surface of the friction substrate, dried at a certain temperature and solidified to form a solid lubricating dry film. High-temperature dry film lubricant can act as a solid lubricant under high-temperature dry friction conditions, solving the problem that lubricating oil, grease, and paste cannot withstand high temperatures, and also has an anti-corrosion protective film effect, and...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06
Inventor 夏爱林乔红斌晋传贵吴胜华杜德新刘顺凯陈路
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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