Hydraulic oil composition and method for preparing same

A hydraulic oil composition and high-pressure technology, applied in the field of hydraulic oil, can solve the problems of poor annealing cleanliness, high residual carbon and ash index, application influence, etc., and achieve good annealing cleanliness, reduce annealing oil spots, and prolong service life Effect

Active Publication Date: 2014-11-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many kinds of hydraulic oil products with annealing detergency, such as imported MOBIL H15 hydraulic oil and imported ESSO 32# hydraulic oil, but their specific applications have high residual carbon and ash indicators, and poor annealing detergency, which affects their application

Method used

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  • Hydraulic oil composition and method for preparing same
  • Hydraulic oil composition and method for preparing same
  • Hydraulic oil composition and method for preparing same

Examples

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preparation example Construction

[0029] The invention also provides a preparation method of the hydraulic oil composition, which comprises the following steps:

[0030] The viscosity index improver, oiliness agent, extreme pressure antiwear agent, antioxidant, corrosion inhibitor and base oil are mixed, heated and stirred to obtain a hydraulic oil composition.

[0031] In the present invention, the base oil is preferably added to the mixing kettle first, and then the viscosity index improver, oiliness agent, extreme pressure antiwear agent, antioxidant, and corrosion inhibitor are added. The present invention has no limitation on the way of feeding.

[0032] In the present invention, the heating temperature is preferably 50°C to 80°C, more preferably 55°C to 75°C. The present invention has no limitation on the mixing and stirring, as long as the mixing and stirring are well known to those skilled in the art.

[0033] In the present invention, the base oil is preferably mineral oil, which may be paraffin oil or naphth...

Embodiment 1

[0043] Add 70g poly-α-olefin synthetic oil PAO2 into the mixing kettle, and then add 10g polyisobutylene (number average molecular weight of 1300 Daltons), 8g butyl stearate, 4g tricresyl phosphate, 0.4g diphenylamine, 2g2- Aminoethyl heptatenyl imidazoline succinate is mixed, heated to 50° C. and stirred uniformly to obtain a hydraulic oil composition.

[0044] The hydraulic oil composition prepared in Example 1 was measured for kinematic viscosity according to GB / T265, viscosity index was measured according to GB / T2541, acid value was measured according to GB / T7304, and corrosion performance was measured according to GB / T5096 , According to GB / T260 for moisture determination, GB / T17144 for residual carbon value determination, GB / T508 for ash determination, GB / T511 for mechanical impurity determination, and GB / T1690 for material suitability and volume The results of the change measurement are shown in Table 1. Table 1 is the performance measurement result of the hydraulic oil co...

Embodiment 2

[0046] Put 85g of Type II base oil 60N into the mixing kettle, then add 20g polyisobutylene (number average molecular weight of 600 Daltons), 4g oleic acid, 1g di-n-butyl phosphite, 0.2g 2.6-di-tert-butyl pair The cresol and 1 g of benzotriazole are mixed, heated to 80° C. and stirred uniformly to obtain a hydraulic oil composition.

[0047] The hydraulic oil composition prepared in Example 2 was measured for kinematic viscosity according to GB / T265, viscosity index was measured according to GB / T2541, acid value was measured according to GB / T7304, and corrosion performance was measured according to GB / T5096 , According to GB / T260 for moisture determination, GB / T17144 for residual carbon value determination, GB / T508 for ash determination, GB / T511 for mechanical impurity determination, and GB / T1690 for material suitability and volume The results of the change measurement are shown in Table 1. Table 1 is the performance measurement result of the hydraulic oil composition provided in...

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Abstract

The invention provides a hydraulic oil composition. The hydraulic oil composition comprises the following components in parts by weight: 60-85 parts of a base oil, 5-30 parts of a viscosity index improver, 1-10 parts of an oiliness agent, 0.5-5 parts of an extreme-pressure antiwear agent, 0.1-0.5 part of an antioxidant and 0.1-3 parts of a corrosion inhibitor. The hydraulic oil composition is prepared by blending the base oil, the viscosity index improver, the oiliness agent, the extreme-pressure antiwear agent, the antioxidant and the corrosion inhibitor, thus the viscosity, the wear resistance, the oxidation resistance and the corrosion resistance needed by a hydraulic system of the hydraulic oil composition can be guaranteed. In addition, the hydraulic oil composition has extremely good annealing detergency, thus even if the hydraulic system leaks the hydraulic oil, nearly no oil stain can be left on the surface of a rolled product, the generation of annealing oil spots can be avoided or reduced, and the service life of the rolling oil can be prolonged.

Description

Technical field [0001] The invention relates to the technical field of hydraulic oil, in particular to a hydraulic oil composition and a preparation method thereof. Background technique [0002] Hydraulic oil is a hydraulic medium used in a hydraulic system that uses liquid pressure energy. It plays a role in energy transmission, system lubrication, anti-corrosion, rust prevention, and cooling in the hydraulic system. Due to the continuous increase in the operating pressure of the vane pump and the plunger pump and the The wear of the friction pair puts forward various requirements for hydraulic oil, especially in the rolling of aluminum foil or copper strip, it has higher requirements for the oil of the hydraulic system of the rolling mill, such as: no pollution to the rolling oil, and can extend the rolling oil It can reduce the product scrap rate caused by the dyeing of the workpiece; it has good anti-wear performance; it has excellent anti-oxidation and anti-corrosion propert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/08C10N30/04C10N30/06C10N30/10C10N30/12
Inventor 何清玉宗明曹毅赵小艳
Owner CHINA PETROLEUM & CHEM CORP
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