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Hydraulic oil composition and uses thereof

A technology of hydraulic oil composition and anti-wear hydraulic oil, which is applied in the direction of lubricating composition and petroleum industry, which can solve the problems of not meeting the requirements of low-temperature operation equipment, poor low-temperature performance of HM anti-wear hydraulic oil, etc., and achieve good oxidation stability , small kinematic viscosity, good technical effect

Active Publication Date: 2014-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is that the low-temperature performance of HM anti-wear hydraulic oil is poor in the prior art and cannot meet the requirements of low-temperature operating equipment. A new hydraulic oil composition is provided

Method used

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  • Hydraulic oil composition and uses thereof

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Embodiment 1～5

[0026] According to the parts by weight in Table 1, weigh the required amount of compounding agent and demulsifier respectively and add them to the mineral base oil, heat and stir at 45-65°C until completely uniform, then add antifoaming agent and stir for 30 minutes to obtain The low pour point antiwear hydraulic oil composition. The types and amounts of each component in the composition are shown in Table 1, the properties of the mineral base oil are shown in Table 2, and the properties of the oil products are shown in Table 3.

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Abstract

The invention relates to a hydraulic oil composition and uses thereof, mainly solves the problems that in the prior art, HM anti-wear hydraulic oil is poor in low temperature performance, and cannot meet the requirements of low temperature operation equipment. The hydraulic oil composition comprises the following components: by weight, a) 100 parts of mineral base oil; and b) 0.1-2 parts of an anti-wear hydraulic oil compound agent; wherein the characteristics of the mineral base oil are that: a1) the kinematic viscosity at 40 DEG C is 28.8-35.2mm<2> / s; a2) the pour point is below -30 DEG C; a3) the viscosity index is higher than 100; a4) the sulfur content is less than or equal to 0.03 wt.%; a5) the nitrogen content is less than or equal to 0.005 wt.%; the anti-wear hydraulic oil compound agent is selected from at least one from HiTEC521 and HiTEC543 of AFTON corporation, LZ5703 of LUBRIZOL corporation, OLA4994 of CHEVRON corporation, and IR5010 of BASF corporation, and the technical scheme well solves the problems, and can be used in industrial production of low pour point anti-wear hydraulic oil.

Description

technical field [0001] The invention relates to a hydraulic oil composition and its application. Background technique [0002] With the reform and opening up and the development of science and technology, my country's hydraulic industry has developed rapidly, and has formed a production and scientific research system with complete categories, certain production capacity and technical level. At the same time, many hydraulic components and hydraulic system manufacturing technologies have been introduced, so there is no shortage of world-advanced products in my country's hydraulic equipment. The current hydraulic equipment has the development trend of high pressure, high speed, miniaturization, mechatronics and so on. [0003] These development trends of hydraulic equipment require hydraulic oil to have excellent oxidation stability, extreme pressure and anti-wear properties, thermal stability, anti-corrosion and anti-rust properties, air release properties, and emulsification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N20/02C10N30/06C10N30/08C10N30/10C10N40/08
Inventor 益梅蓉何晓瑛周霞孔吉霞
Owner CHINA PETROLEUM & CHEM CORP
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