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Low temperature fire resistant hydraulic oil

A hydraulic oil and low-temperature technology, which is applied in the petroleum industry, additives, lubricating compositions, etc., and can solve problems such as failure to meet the low-temperature starting requirements of fighter jets, corrosion, etc.

Active Publication Date: 2017-03-01
PLA AIR FORCE OIL MATERIAL RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foreign standard for low-temperature fire-resistant hydraulic oil usually used in fighter planes and missiles is MIL-PRF-87257, but there is currently no corresponding product and standard in China
The hydraulic oil usually used in civil aviation aircraft or helicopters cannot be directly used in fighter jets, because the working conditions of fighter jets are more harsh, so the requirements for hydraulic oil are also higher. Phosphate ester fire-resistant hydraulic oil used in civil aviation aircraft will The metal materials of fighter jets and missiles cause corrosion, and the synthetic hydrocarbon hydraulic oil used for helicopters cannot meet the low temperature starting requirements of fighter jets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Stir and mix 43kg of PAO2, 34kg of sebacate and 23kg of perfluoroalkyl polyether in a reactor at room temperature for about 3 hours to form a compound base oil for future use. Then the temperature of the reactor was raised to about 70°C, and 1.3kg of antioxidant diisooctyl diphenylamine, 1.54kg of extreme pressure agent triphenylthiophosphate, 0.10kg of rust inhibitor nitrogen borate and 0.005kg of dyeing agent Sudan Red IV and Oil Red O, continue to stir for about 2 hours until all components are mixed evenly. The reaction system was lowered to room temperature, and then antifoaming agent methyl silicone oil was added to the reactor until the concentration of the antifoaming agent was about 12ppm, and stirring was continued for about 1 hour to obtain the final low temperature fire-resistant hydraulic oil.

Embodiment 2

[0058] A low-temperature fire-resistant hydraulic oil was prepared in the same manner as in Example 1, except that various components were added according to the proportions shown in Table 1.

Embodiment 3

[0060] A low-temperature fire-resistant hydraulic oil was prepared in the same manner as in Example 1, except that various components were added according to the proportions shown in Table 1.

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Abstract

The present invention relates to a petrochemical product and a preparation thereof, particularly to a low temperature fire-resistant hydraulic oil and a preparation method thereof. The low temperature fire-resistant hydraulic oil comprises, by weight, 100 parts of a base oil, 0.3-3 parts of an antioxidant, 0.1-5 parts of an extreme pressure agent, 0.04-0.7 part of an anti-rust agent nitrogen borate, 0.0006-0.02 part of a dye agent, and 12 ppm of an anti-foam agent methyl silicone oil. Compared with the current domestic battleplane aviation hydraulic oils such as 10# aviation hydraulic oil and 15# aviation hydraulic oil and abroad similar products, the low temperature fire-resistant hydraulic oil of the present invention has excellent viscosity, excellent flash point and other excellent physical properties, and meets the relevant standard requirement, such that the low temperature fire-resistant hydraulic oil of the present invention can be more widely used in the field of aviation battleplane.

Description

technical field [0001] The invention relates to petrochemical products and a preparation method thereof, in particular to a low-temperature fire-resistant hydraulic oil and a preparation method thereof. Background technique [0002] Hydraulic oil is a hydraulic medium used in a hydraulic system that utilizes liquid pressure energy. It plays the roles of energy transmission, anti-wear, system lubrication, anti-corrosion, anti-rust, cooling, etc. in the hydraulic system. For hydraulic oil, first of all, it should meet the requirements of the hydraulic device for the viscosity of the liquid at the working temperature and the starting temperature. Low-temperature fire-resistant hydraulic oil is a kind of fire-resistant hydraulic oil with automatic flame extinguishing function. It not only has excellent anti-oxidation, anti-wear, anti-rust and anti-foam properties, but also can cause fire when the oil is in contact with flames or hot surfaces. and the risk of explosion is minimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00C10M169/04C10N40/08
Inventor 刘多强韩松霖李晓涛都长飞邢军王德岩杨韬赵秀丽
Owner PLA AIR FORCE OIL MATERIAL RES INST
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