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Special vibration absorber oil for railway locomotive and preparation method thereof

A shock absorber oil, railway locomotive technology, applied in the petroleum industry, only multi-stage series refining process treatment, lubricating composition, etc., can solve the problems of shock absorber oil product quality, lack of lubricating performance, low temperature performance and To solve problems such as poor shear performance, achieve the effect of improved lubricating performance, fewer steps, and increased service life

Inactive Publication Date: 2011-01-26
JIANGSU ZHONGSHENG GAOKE ENVIRONMENTAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shock absorber oil products have different quality, poor low temperature performance and shear performance, and lack of lubricating performance. In view of the use of railway locomotive shock absorber oil, railway locomotive shock absorber oil is developed to meet the requirements of shock absorbers in various climates. Use is the inevitable direction of market development

Method used

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  • Special vibration absorber oil for railway locomotive and preparation method thereof
  • Special vibration absorber oil for railway locomotive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for producing special shock absorber oil for railway locomotives, comprising the following steps:

[0024] (1) Use hydrorefined low-viscosity mineral oil as raw material, pump it into a continuous rectification tower for rectification and cutting, and cut out the base oil with a distillate of 320-370 °C;

[0025] (2) Inputting the base oil into a urea dewaxing device and adopting a wet urea dewaxing process for deep dewaxing at a temperature of 30-40° C. to produce dewaxed oil whose pour point is below -50° C.;

[0026] (3) pump the dewaxed oil into the clay refining kettle, heat to 80°C, add 2% clay by weight, heat and stir for 30 minutes, and filter through a filter press to obtain the special base oil;

[0027] (4) Pump 4350kg of special base oil into the pulse blending reaction kettle, heat it to 80°C while stirring, then add 487.7kg of viscosity index improver H638, keep stirring for 50 minutes, then continue to stir and cool to 70°C ℃; then add 39kg of c...

Embodiment 2

[0032] A method for producing special shock absorber oil for railway locomotives, comprising the following steps:

[0033] (1) Use light oil as raw material, pump it into the continuous rectification tower for rectification and cutting, and cut out the base oil with a fraction of 320-370°C;

[0034] (2) Inputting the base oil into a urea dewaxing device and adopting a wet urea dewaxing process for deep dewaxing at a temperature of 30-40° C. to produce dewaxed oil whose pour point is below -50° C.;

[0035] (3) pump the dewaxed oil into the clay refining kettle, heat to 85°C, add 2% clay by weight, heat and stir for 30 minutes, and filter through a filter press to obtain the special base oil;

[0036] (4) Pump 4400kg of special base oil into the pulse blending reaction kettle, heat to 75°C while stirring, then add 550.1kg of viscosity index improver H638, keep stirring for 45 minutes, then continue to stir and cool to 70°C ℃; then add 50.0kg of compounding agent T5092 and 0.35...

Embodiment 3

[0042] A method for producing special shock absorber oil for railway locomotives, comprising the following steps:

[0043] (1) Use special white oil as raw material, pump it into the continuous rectification tower for rectification and cutting, and cut out the base oil whose distillate is 320-370°C;

[0044] (2) Inputting the base oil into a urea dewaxing device and adopting a wet urea dewaxing process for deep dewaxing at a temperature of 30-40° C. to produce dewaxed oil whose pour point is below -50° C.;

[0045] (3) pump the dewaxed oil into the clay refining kettle, heat to 90°C, add 4% clay by weight, heat and stir for 40 minutes, and filter through a filter press to obtain the special base oil;

[0046] (4) Pump 4300kg of special base oil into the pulse blending reaction kettle, heat it to 80°C while stirring, then add 594.6kg of viscosity index improver H638, keep stirring for 50 minutes, then continue to stir and cool to 70°C ℃; then add 59.5kg of compounding agent T5...

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Abstract

The invention discloses special vibration absorber oil for a railway locomotive and a preparation method thereof. The vibration absorber oil comprises the following components in part by weight: 86.77 to 89.187 parts of special base oil, 10 to 12 parts of viscosity index improver, 0.8 to 1.2 parts of complexing agent, 0.003 to 0.01 part of extreme pressure enhancing agent and 0.01 to 0.02 part of composite defoaming agent. The method comprises the following steps of: distilling and cutting refined low-viscosity mineral oil serving as a raw material into narrow fraction base oil, performing deep de-waxing and clay refining on the narrow fraction base oil to obtain the special base oil, and then adding the viscosity index improver, the complexing agent and the defoaming agent into the special base oil to obtain the vibration absorber oil. The special vibration absorber oil for the railway locomotive has good vibration absorption, lubricating property, low-temperature liquidity, shearing safety and anti-oxidation rustproof performance, and particularly has high viscosity index (more than 190); and the function of the vibration absorber oil is not affected by extremely cold regions and hot regions. The special vibration absorber oil for the railway locomotive is oil mainly applied to vibration absorbers of trains and railway locomotives, can obviously improve the vibration absorption effect and lubricating property after being used, meanwhile prolongs the service life of machinery, and improves the safety factors of vehicles.

Description

technical field [0001] The invention belongs to a production method of special shock absorber oil for railway locomotives, specifically refers to a method of using refined low-viscosity mineral oil as raw material, undergoing rectification and cutting, urea dewaxing, clay refining, additive precision weighing and pulse blending production method. Background technique [0002] my country has applied hydraulic shock absorbers on locomotives and passenger cars for 40 years. Generally, the shock absorber oil of shock absorber manufacturers is configured and purchased according to the shock absorber oil technical conditions formulated by their respective technical departments or directly replaced by other oil products. Shock absorber oil products have different quality, poor low temperature performance and shear performance, and lack of lubricating performance. In view of the use of railway locomotive shock absorber oil, railway locomotive shock absorber oil is developed to meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10G53/08C10M177/00C10N30/10C10N30/06C10N30/12
Inventor 许汉祥蒋华良
Owner JIANGSU ZHONGSHENG GAOKE ENVIRONMENTAL CO LTD
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