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Composite solid lubricating bar shell and preparation method thereof

A kind of lubricating rod and composite technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of no practical application value, low mechanical strength of solid lubricants, easy to break, etc., to achieve low friction coefficient and reduced friction coefficient. Small, the effect of improving lubricity

Active Publication Date: 2013-11-13
ZHEJIANG BAOSHENG RAILWAYNEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The loading test shows that because the solid lubricant has low mechanical strength and is brittle, it cannot withstand impact and is easily broken during vibration, so it has no practical application value at all.

Method used

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  • Composite solid lubricating bar shell and preparation method thereof
  • Composite solid lubricating bar shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A composite solid lubricating stick shell of this embodiment is prepared from the following raw materials in weight percentage: ultra-high molecular weight polyethylene 5%; ethylene-vinyl acetate 20%; mineral oil 5%; degradable lubricating grease 7% ; Graphite 47%; PTFE 3%; molybdenum disulfide 3%; polyethylene wax 4%; stearic acid 4%; extreme pressure antiwear agent 2%. Molybdenum disulfide as a solid lubricant can reduce the friction coefficient. The ultra-high molecular weight polyethylene is white fine powder particles, and its average molecular weight is 1.5-2.5 million. The ethylene-vinyl acetate is a transparent particle, and the melt flow rate is 0.5 g / 10min-3 g / 10min. Described mineral oil is 500SN paraffin oil. The degradable lubricating grease is a degradable lubricating grease prepared from epoxy-esterification modified soybean oil. The polytetrafluoroethylene is superfine powder with a bulk density of 0.5Kg / l, an average particle size of 6±1μm, and a...

Embodiment 2

[0045] A composite solid lubricating rod shell of this embodiment is prepared from the following raw materials in weight percentage: ultra-high molecular weight polyethylene 10%; ethylene-vinyl acetate 18%; mineral oil 5%; degradable lubricating grease 8% ; Graphite 46%; PTFE 3%; molybdenum disulfide 2%; polyethylene wax 4%; stearic acid 3%, extreme pressure antiwear agent 1%. Molybdenum disulfide as a solid lubricant can reduce the friction coefficient. The ultra-high molecular weight polyethylene is white fine powder particles, and its average molecular weight is 1.5-2.5 million. The ethylene-vinyl acetate is a transparent particle, and the melt flow rate is 0.5 g / 10min-3 g / 10min. Described mineral oil is 500SN paraffin oil. The degradable lubricating grease is a degradable lubricating grease prepared from epoxy-esterification modified soybean oil. The polytetrafluoroethylene is superfine powder with a bulk density of 0.5Kg / l, an average particle size of 6±1μm, and a ...

Embodiment 3

[0049] A composite solid lubricating stick shell of this embodiment is prepared from the following raw materials in weight percentage: ultra-high molecular weight polyethylene 6%; ethylene-vinyl acetate 28%; mineral oil 2%; degradable lubricating grease 5% ; Graphite 49%; PTFE 1%; molybdenum disulfide 2%; polyethylene wax 3%; stearic acid 3%, extreme pressure antiwear agent 1%. Molybdenum disulfide as a solid lubricant can reduce the friction coefficient. The ultra-high molecular weight polyethylene is white fine powder particles, and its average molecular weight is 1.5-2.5 million. The ethylene-vinyl acetate is a transparent particle, and the melt flow rate is 0.5 g / 10min-3 g / 10min. Described mineral oil is 500SN paraffin oil. The degradable lubricating grease is a degradable lubricating grease prepared from epoxy-esterification modified soybean oil. The polytetrafluoroethylene is superfine powder with a bulk density of 0.5Kg / l, an average particle size of 6±1μm, and a...

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Abstract

The invention discloses a composite solid lubricating bar shell and a preparation method thereof. The composite solid lubricating bar shell is prepared from the following raw materials by weight: 3 to 10 percent of ultra-high molecular weight polyethylene, 8 to 30 percent of ethylene-vinyl acetate, 1 to 5 percent of mineral oil, 1 to 8 percent of degradable lubricating grease, 38 to 60 percent of graphite, 1 to 3 percent of polytetrafluoroethylene, 1 to 3 percent of molybdenum disulfide, 1 to 4 percent of polyethylene wax, 1 to 4 percent of stearic acid and 1 to 2 percent of extreme-pressure antiwear agent. The composite solid lubricating bar shell prepared from the raw materials effectively improves lubricating property, wear resistance and compressive resistance.

Description

technical field [0001] The invention relates to the field of industrial lubrication, in particular to a composite solid lubricating rod shell used for lubricating wheel rims of railway locomotives, subways, urban rail wheels and port machinery and a preparation method thereof. Background technique [0002] The rims of railway locomotives, subways, urban rail vehicles and port machinery are always in contact with the rails during operation, and the wheel rims and rails are worn, especially in the running section with a small radius of curvature of the track, due to the effect of centrifugal force, the wear is more serious , so that the service life of wheels and rails is shortened. In addition, in the running section where the radius of curvature of the track is small, harsh noises are generated when the wheel rim of the vehicle is in contact with the rail. [0003] In order to overcome the above problems, at present, dry lubricants are used instead of grease lubrication...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N50/08C10N30/06
Inventor 黄晟汇
Owner ZHEJIANG BAOSHENG RAILWAYNEW MATERIALS TECH
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