Total synthesis shock absorber oil with high viscosity index

A shock absorber oil, high viscosity technology, applied in the field of lubricants, can solve the problems of low anti-wear performance and friction coefficient, poor lubricating performance, poor cost, low viscosity-temperature index, etc., to achieve outstanding viscosity-temperature performance, excellent low temperature performance, the effect of solving the viscosity-temperature performance

Inactive Publication Date: 2011-03-30
WUXI HUIYUAN PACKAGING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as: US 4634543 discloses a shock absorber oil with low anti-wear performance and friction coefficient; JP 03285989 discloses a synthetic shock absorber oil, but it is not good in terms of lubricating performance and cost; CN 101486944A discloses a A synthetic oil containing phenylmethyl silicone oil, but this shock absorber oil is composed of synthetic oil and hydrogenated oil, and the phenylmethyl silicone oil also has the problems of high cost and poor compatibility with common additives; CN 134578A discloses a Shock absorber oil is composed of ZDDP anti-oxidant and anti-corrosion agent, methyl silicone oil and a special lubricating oil, etc. The viscosity-temperature index is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0021] Prepare fully synthetic high viscosity index shock absorber oil according to the formula in Table 1.

[0022] The formula of table 1 embodiment 1~6

[0023] .

[0024] The above formula is mixed according to the proportion of each component, heated and stirred evenly, and the product can be obtained.

Embodiment 7

[0026] The performance of the formula products of Examples 1-6 was tested by using national or industry standard analysis methods, and compared with the reference example (CN 101486944A Example 2). The results are shown in Table 2.

[0027] The comparative data of table 2 embodiment 1~6 product performance analysis and reference example

[0028] .

[0029] After analysis, the viscosity index of the fully synthetic high-viscosity index shock absorber oil obtained in Examples 1-6 is all greater than 200, the pour point is all less than -60°C, the maximum non-seizing load is greater than that of the reference example, and the wear scar diameter is smaller than that of the reference example , under the tested conditions, the analysis results of foam tendency and foam stability are both 0. Therefore, the shock absorber oil of the present invention has extremely excellent viscosity-temperature performance and low-temperature performance, and is obviously superior to the referenc...

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Abstract

The invention relates to total synthesis shock absorber oil with a high viscosity index, which comprises the following components in percentage by weight: 85-95% of poly-alpha-olefin synthetic oil, 1-10% of ester synthetic oil, 1-10% of polymethacrylate viscosity index improver, 0.1-5% of anti-wear additive, 0.5-5% of antioxidant, 0.001-0.1% of anti-foaming agent, 0-1% of pour point depressant and 0.01-2.0% of antirust additive. Compared with the common shock absorber oil, the invention has the advantages of remarkable viscosity-temperature performance and antifoaming performance, excellent low temperature performance and lubricating property, favorable antirust and anticorrosion performance, and very remarkable oxidation resistance and appropriate cost, has favorable adaptability with rubber at the same time and can satisfy the use requirements, such as all weather, long life, universality, and the like.

Description

technical field [0001] The invention relates to the field of lubricants, in particular to a fully synthetic high-viscosity index shock absorber oil. Background technique [0002] The performance of the car, such as: ride comfort, maneuverability, stability, etc., depends on the choice of the suspension characteristics of the car. The characteristics of the shock absorber are one of the three main problems to solve the suspension characteristics. It is necessary to have good shock absorber characteristics to ensure the best performance of the suspension, and the shock absorber oil is the main factor that affects the apparent work characteristics, high temperature performance, and low temperature performance of the shock absorber. It plays an important role in the normal operation of the device. [0003] With the continuous development of my country's automobile industry, the demand for high-end automobiles is increasing day by day, and higher requirements are put forward fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/12C10N30/10C10N40/00
Inventor 冯克权缪冬琴
Owner WUXI HUIYUAN PACKAGING TECH
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