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Graphite based cementing solid lubricant

A technology of solid lubricants and lubricants, which is applied in the direction of lubricating compositions, base materials, additives, etc., and can solve the problems that the performance cannot fully meet the requirements for the use of compressor rotors and end plates, harsh operating conditions, and scrapped compressors. , to achieve the effect of reducing strain, improving work efficiency and prolonging service life

Active Publication Date: 2009-06-24
兰州中科凯路润滑与防护技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotor and end plate of the air-conditioning compressor are in the medium environment of high-temperature RS20 lubricating oil and R134a refrigerant, and the working conditions are harsh. In the initial run-in stage, severe wear usually occurs, causing strain and scrapping the compressor
However, the existing bonded solid lubricants in China cannot fully meet the requirements for the use of compressor rotors and end plates in terms of performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take by weighing 130.0 grams of graphite, 10.0 grams of molybdenum disulfide, 40 grams of antimony trioxide, 6 grams of lead oxide, 8 grams of lanthanum fluoride and 0.5 grams of organosilane coupling agent (γ-glycidoxypropyltrimethylsilane ) into a ball mill jar, add 60 grams of mixed solvent to grind, then add 360 grams of polyamide-imide resin and 640 grams of mixed solvent to disperse evenly to be graphite-based bonded solid lubricant [mixed solvent (volume percent Composition): dimethylformamide 50%, toluene 50%].

Embodiment 2

[0022] Graphite 8.0% Molybdenum disulfide 1.0%

[0023] Antimony trioxide 3% Lead oxide 1%

[0024] γ—Glycidoxypropyl

[0025] Cerium fluoride 1.0% 0.03%

[0026] Trimethylsilane

[0027] Polyamideimide 10.0%

[0028] Remainder [mixed solvent: dimethylformamide 20%, toluene 80% (volume

[0029] mixed solvent

[0030] Product percentage composition)]

Embodiment 3

[0032] Graphite 5.0% Molybdenum disulfide 1.5%

[0033] Antimony trioxide 2.0% Lead oxide 1.0%

[0034] Cerium fluoride 0.5% Lanthanum fluoride 0.6%

[0035] γ—Glycidoxypropyl

[0036] 0.07% Polyamideimide 12.0%

[0037] Trimethylsilane

[0038] Remainder [mixed solvent: dimethylformamide 20%, toluene 80% (volume

[0039] mixed solvent

[0040] percent composition)]

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Abstract

The invention discloses a graphite-base bonded solid lubricant. The lubricant consists of polyamidoimide, graphite, molybdenum disulfide, rare earth fluoride, metal oxide, gamma-epoxy propoxy propyl-trimethylsilicane and a mixed organic solvent. A coating prepared by the lubricant has excellent high-temperature lubrication and wear resistance and can be used for a long time at 250 DEG C; meanwhile, the coating prepared by the lubricant has excellent abrasion resistance, thereby playing roles in protecting surface, reducing abrasion and friction coefficient, and prolonging service life of parts.

Description

technical field [0001] The invention relates to a graphite-based bonded solid lubricant. Background technique [0002] Aluminum material has become one of the main consumables of air-conditioning compressors due to its light weight and easy forming characteristics. The operating conditions of the rotor and end plate of the air-conditioning compressor are extremely harsh, involving high temperature, high load, high speed, special media, etc., and aluminum materials have poor wear resistance and scratch resistance, which greatly limits the performance of aluminum materials. The material is directly used as the friction pair part of the air conditioner compressor. How to improve the friction state of the aluminum air-conditioning compressor rotor and end plate, especially the initial run-in state, and reduce the phenomenon of rotor and end plate strain has become one of the technical keys to realize the design of new compressors. [0003] Bonded solid lubricant is a special s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M107/44C10M103/02C10M125/22C10M125/18C10M125/10C10M139/04C10N50/08
Inventor 冶银平陈建敏周惠娣
Owner 兰州中科凯路润滑与防护技术有限公司
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