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Subway train special gear oil and preparation method

A technology for gear oil and trains, applied in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of shortening the service life of friction parts, affecting the safe operation of subway trains, and carbon deposition on friction parts of gear boxes, etc., to reduce noise, reduce Subway operating costs and the effect of extending the oil change interval

Inactive Publication Date: 2016-02-03
JIANGXI KIRBY LUBRICANT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current GL-5 specification vehicle gear oil will turn black and thick after running for a period of time in the high temperature and extreme pressure environment of the subway train gearbox, and carbon deposits, sludge and paint film will appear on the friction parts of the gearbox, which will affect the lubrication effect , increase friction loss and shorten the service life of friction parts
In severe cases, it will also affect the safe operation of subway trains and bring serious safety hazards

Method used

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  • Subway train special gear oil and preparation method
  • Subway train special gear oil and preparation method
  • Subway train special gear oil and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickener, 0.4 part of pour point depressant, 3.9 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0026] The base oil is composed of 650SN, 500N, 150BS base oil, and its weight ratio is: 650SN47 parts, 500N16 parts, 150BS30 parts.

[0027] The tackifier is polyisobutylene.

[0028] The pour point depressant is polymethacrylate.

[0029] The special compounding agent, in parts by weight, includes: 12 parts of extreme pressure antiwear agent, 11 parts of oily agent, 0.1 part of antioxidant, 0.12 part of friction modifier, and 0.1 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oiliness agent is benzotriazole fatty acid ammonium salt, and the antioxidant is dialkyl dithiocarbamate. The improver is molybde...

Embodiment 2

[0033] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickener, 0.4 part of pour point depressant, 4.1 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0034] The base oil is composed of 650SN, 500N, 150BS base oil, and its weight ratio is: 650SN47 parts, 500N16 parts, 150BS30 parts.

[0035] The tackifier is polyisobutylene.

[0036] The pour point depressant is polymethacrylate.

[0037] The special compounding agent, in parts by weight, includes: 12 parts of extreme pressure antiwear agent, 12 parts of oily agent, 0.2 part of antioxidant, 0.18 part of friction modifier, and 0.14 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oiliness agent is benzotriazole fatty acid ammonium salt, and the antioxidant is dialkyl dithiocarbamate. The improver is molybd...

Embodiment 3

[0041] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickener, 0.4 part of pour point depressant, 4.4 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0042] The base oil is composed of 650SN, 500N, 150BS base oil, and its weight ratio is: 650SN47 parts, 500N16 parts, 150BS30 parts.

[0043] The tackifier is polyisobutylene.

[0044] The pour point depressant is polymethacrylate.

[0045] The special compounding agent, in parts by weight, includes: 12 parts of extreme pressure antiwear agent, 14 parts of oily agent, 0.3 part of antioxidant, 0.24 part of friction modifier, and 0.18 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oiliness agent is benzotriazole fatty acid ammonium salt, and the antioxidant is dialkyl dithiocarbamate. The improver is molybd...

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PUM

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Abstract

A subway train special gear oil is particularly suitable for using in high temperature and extreme pressure work status of a subway train in frequent start, braking and high-speed operation, has excellent high temperature stability, resistance to extreme pressure and anti-wear properties and high temperature oxidation resistance, ensures subway train gearboxes maintain stable oil films under very heavy duty conditions, reduces noise, prevents gear wear, can effectively prevent and subway train low rotation speed / high torque wear and intense heat produced in high-speed operation, and is especially suitable for using in high temperature and extreme pressure work status of the subway train in frequent start, braking and high-speed operation. By use of the subway train special gear oil, the gear oil change period may be extended by more than 20%, and the subway operating cost is reduced.

Description

Technical field [0001] The invention relates to a lubricating oil, in particular to a special gear oil for subway trains and a preparation method thereof, and belongs to the technical field of synthetic lubricating oils. Background technique [0002] Gear oil is based on petroleum lubricating oil base oil or synthetic lubricating oil. It is an important lubricating oil prepared by adding extreme pressure antiwear agent and oiliness agent. Used in various gear transmissions to prevent tooth surface wear, scratches, sintering, etc., extend its service life and improve transmission efficiency. Gear oil should have good anti-wear, load-resistant properties and suitable viscosity. In addition, it should have good thermal oxidation stability, foam resistance, water separation performance and rust resistance. [0003] The quality grades of automotive gear oils are usually classified by API (American Petroleum Institute), as shown in the table below. [0004] [0005] At present, the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M167/00C10N40/04C10N30/06C10N30/10
Inventor 陈浩张惠萍李骏陈国需
Owner JIANGXI KIRBY LUBRICANT PROD
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