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Low-temperature hydraulic oil and preparation method thereof

A technology of hydraulic oil and low temperature, applied in the field of low temperature hydraulic oil, can solve the problem of not being suitable for low temperature hydraulic oil, and achieve good low temperature stability and good anti-wear performance

Inactive Publication Date: 2015-01-07
WUXI YANGGONG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no low-temperature hydraulic oil suitable for alpine regions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The formula of low temperature hydraulic oil of the present invention is as follows:

[0016] 150N three types of base oil 955kg, epoxy soybean oil 22kg, benzotriazole 2.5kg, sulfurized polyisobutylene 4kg, sodium tripolyphosphate 1.4kg, benzotriazole fatty acid amine salt 0.006kg, polymethacrylate 0.7kg, Lauric acid diethanolamide 1.4kg, succinate sulfonate 0.05kg, diisooctyldiphenylamine 0.1kg, demulsifier appropriate amount, ethylenediaminetetraacetic acid 1kg.

[0017] The preparation method of low temperature hydraulic oil of the present invention is:

[0018] (1) Mix the 150N three-type base oil, epoxy soybean oil, polymethacrylate, benzotriazole, and demulsifier in the formula, heat to 48°C, and stir for 32 minutes;

[0019] (2) Rise to 62°C at a rate of 1°C every 2 minutes, add the remaining ingredients in the formula, and stir at 18°C;

[0020] (3) Cool down to room temperature at a rate of 1°C per minute, then filter.

Embodiment 2

[0022] The formula of low temperature hydraulic oil of the present invention is as follows:

[0023] 150N three types of base oil 950kg, epoxy soybean oil 25kg, benzotriazole 2kg, sulfurized polyisobutylene 3kg, sodium tripolyphosphate 1.5kg, benzotriazole fatty acid amine salt 0.008kg, polymethacrylate 0.8kg, laurel Acid diethanolamide 1.5kg, succinate sulfonate 0.06kg, diisooctyldiphenylamine 0.12kg, demulsifier appropriate amount, ethylenediaminetetraacetic acid 1.1kg.

[0024] The preparation method of low temperature hydraulic oil of the present invention is:

[0025] (1) Mix the 150N three-type base oil, epoxy soybean oil, polymethacrylate, benzotriazole, and demulsifier in the formula, heat to 45°C, and stir for 35 minutes;

[0026] (2) Rise to 65°C at a rate of 1°C every 2 minutes, add the remaining ingredients in the formula, and stir at 15°C;

[0027] (3) Cool down to room temperature at a rate of 1°C per minute, then filter.

Embodiment 3

[0029] The formula of low temperature hydraulic oil of the present invention is as follows:

[0030] 150N three types of base oil 960kg, epoxy soybean oil 20kg, benzotriazole 3kg, sulfurized polyisobutylene 5kg, sodium tripolyphosphate 1.2kg, benzotriazole fatty acid amine salt 0.005kg, polymethacrylate 0.6kg, laurel Acid diethanolamide 1.2kg, succinate sulfonate 0.04kg, diisooctyldiphenylamine 0.08kg, demulsifier appropriate amount, ethylenediaminetetraacetic acid 0.9kg.

[0031] The preparation method of low temperature hydraulic oil of the present invention is:

[0032] (1) Mix the 150N three-type base oil, epoxy soybean oil, polymethacrylate, benzotriazole, and demulsifier in the formula, heat to 50°C, and stir for 30 minutes;

[0033] (2) Rise to 60°C at a rate of 1°C every 3 minutes, add the remaining ingredients in the formula, and stir at 20°C;

[0034] (3) Cool down to room temperature at a rate of 1°C per minute, then filter.

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Abstract

The invention provides low-temperature hydraulic oil, which consists of the following components in parts by mass: 950 to 960 parts of three kinds of 150N basic oil, 20 to 25 parts of epoxidized soybean oil, 2 to 3 parts of benzotriazole, 3 to 5 parts of sulfurized polyisobutene, 1.2 to 1.5 parts of sodium tripolyphosphate, 0.005 to 0.008 part of triazole fatty acid ammonium slat, 0.6 to 0.8 part of polymethacrylate, 1.2 to 1.5 parts of lauroyl diethanolamide, 0.04 to 0.06 part of sulfosuccinate, 0.08 to 0.12 part of di-iso-octyldiphenylamine, a proper amount of an emulsion breaker and 0.9 to 1.1 parts of ethylenediamine tetraacetic acid. The invention also provides a preparation method for the low-temperature hydraulic oil. The low-temperature hydraulic oil has high low-temperature stability, high lubrication performance and high abrasion resistance, and is applied to an alpine region with the ambient temperature of -40 to -43 DEG C.

Description

Technical field [0001] The invention involves a low -temperature hydraulic oil. Background technique [0002] Hydraulic transmission operates working components with liquid pressure energy in a closed container. Because of its small size, light quality, sensitive response, stable transmission, convenient installation, and easy operation, it is widely used in the ship's steering gear and anchor machine, Navigation system and the switch remote control system of the valve. The hydraulic medium is a medium that conveys energy in hydraulic transmission. It plays an important role in transmitting energy, lubrication equipment, anticorrosive rust and cooling in hydraulic equipment.If the oil pump is the heart of the entire hydraulic system, the hydraulic medium is the blood of the hydraulic system, and it plays a vital role in the reliability and life of the hydraulic system.A large amount of facts show that more than 70%of the hydraulic failure is caused by the working medium. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N40/08
Inventor 杨龙兴
Owner WUXI YANGGONG MACHINERY MFG
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