Ash-free anti-wear hydraulic lubricating oil composition and preparation method thereof

A lubricating oil composition and hydraulic technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of corrosion of copper parts of plunger pump, malfunction of hydraulic system, wear of plunger pump shaft, etc. The effect of convenient deployment and excellent performance

Inactive Publication Date: 2018-03-06
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the plunger pump is used, ZDDP will cause corrosion to the copper parts of the plunger pump, which will lead to wear of the plunger pump shaft and rupture of the swash plate
In addition, due to the ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Lubricating oil composition (I), it comprises:

[0040] Base oil: 150N 95.539%

[0041] Ashless extreme pressure anti-wear additive: a mixture of T343 and Basf 349 in a mass ratio of 1:1 0.6%

[0042] Antioxidant: a mixture of phenolic ester antioxidant and T501 at a mass ratio of 1:3 0.15%

[0043] Metal deactivator: T551 0.05%

[0044] Rust inhibitor: T706 0.1%

[0045] Anti-emulsifier: T1001 0.06%

[0046] Antifoaming agent: T921 0.001%

[0047] Viscosity index improver: T602HB 3.5%

[0048] The preparation method of the above-mentioned ashless anti-wear hydraulic oil composition, the steps are as follows:

[0049] At room temperature, control the stirring speed to 300rpm, add viscosity index improver to the base oil, after stirring evenly, adjust the rotating speed to 500rpm, then add ashless extreme pressure antiwear agent, antioxidant, metal deactivator, rust inhibitor , anti-emulsifier, and anti-foaming agent were added together, continued to stir for 3 ho...

Embodiment 2

[0051] A lubricating oil composition (2) comprising:

[0052] Base oil: PAO6 98.559%

[0053] Ashless EP antiwear additive: Basf 349 0.6%

[0054] Antioxidant: 1:1 mixture of phenolic ester antioxidant and T501 by mass ratio 0.15%

[0055] Metal deactivator: T551 0.05%

[0056] Rust inhibitor: T746 0.1%

[0057] Anti-emulsifier: T1001 0.06%

[0058] Antifoaming agent: T921 0.001%

[0059] Viscosity Index Improver: OCP 0.48%

[0060] The preparation method of the above-mentioned ashless anti-wear hydraulic oil composition, the steps are as follows:

[0061] Raise the temperature of the base oil to 60°C, control the stirring speed to 500rpm, add the viscosity index improver to the base oil, stir for 3 hours, then cool down to 50°C, then add the ashless extreme pressure antiwear agent, antioxidant, metal deactivator , anti-rust agent, anti-emulsifier and anti-foaming agent are added together, continue to stir for 3 hours at the same speed, and obtain the final product after ...

Embodiment 3

[0063] A lubricating oil composition (3) comprising:

[0064] Base oil: Yubase6 97.089%

[0065] Ashless extreme pressure anti-wear additive: a mixture of T343 and Basf 349 at a mass ratio of 1:2 0.6%

[0066] Antioxidant: 1:1 mixture of phenolic ester antioxidant and T501 by mass ratio 0.15%

[0067] Metal deactivator: T551 0.05%

[0068] Rust inhibitor: T746 0.1%

[0069] Anti-emulsifier: T1001 0.06%

[0070] Antifoaming agent: T921 0.001%

[0071] Viscosity index improver: SCR-8310 2.01%

[0072] The preparation method of the above-mentioned ashless anti-wear hydraulic oil composition, the steps are as follows:

[0073] At room temperature, control the stirring speed to 300rpm, add viscosity index improver to the base oil, after stirring evenly, adjust the rotating speed to 500rpm, then add ashless extreme pressure antiwear agent, antioxidant, metal deactivator, rust inhibitor , anti-emulsifier, and anti-foaming agent were added together, continued to stir for 3 hour...

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PUM

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Abstract

The invention discloses an ash-free anti-wear hydraulic lubricating oil composition and a preparation method thereof. The ash-free anti-wear hydraulic lubricating oil composition consists of the following components in percentage by weight: 0.1-5.0% of an extreme pressure anti-wear reagent, 0.05-2.00% of an antioxidant, 0.01-0.5% of a metal deactivating agent, 0.05-0.1% of an anti-rusting agent, 0.03-0.06% of an emulsification resistant agent, 0.001-0.01% of an anti-foam agent, 0.2-6.5% of a viscosity index improver and 92.0-98.6% of basic oil, wherein the extreme pressure anti-wear reagent issulfurized isobutylene, di-n-butyl phosphate, tricresyl phosphate, phosphorothioate and amino salt derivatives thereof, phosphate and amino salt derivatives thereof, or a mixture of any combination of the components. The preparation method comprises the following steps: putting the antioxidant, the extreme pressure anti-wear reagent, the anti-rusting agent, the metal deactivating agent, the anti-foam agent, the emulsification resistant agent and the viscosity index improver respectively into the basic oil, or mixing additives to prepare a concentrated substance, heating and mixing the concentrated substance with the basic oil at a mixing temperature between 40-90 DEG C for 1-6 hours, and filtering. The ash-free anti-wear hydraulic lubricating oil composition disclosed by the invention isexcellent in high-temperature oxidation resistance, high-pressure wearing resistance and extreme pressure resistance, and specification indexes of GB11118.1 and ISO11158-2009 can be met.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a lubricating oil composition used in a hydraulic transmission system, in particular to an ashless anti-wear hydraulic lubricating oil composition. Background technique [0002] Hydraulic oil is the hydraulic medium used in the hydraulic system that utilizes liquid pressure energy. It plays the role of energy transmission, system lubrication, anti-corrosion, rust prevention, cooling, etc. in the hydraulic system. Hydraulic oil can be roughly divided into ordinary hydraulic oil, anti-wear hydraulic oil, low-temperature hydraulic oil, fire-resistant hydraulic oil, clean hydraulic oil, green hydraulic oil (biodegradable hydraulic oil) and other varieties, among which anti-wear hydraulic oil is the most used Hydraulic oil. [0003] Anti-wear hydraulic oil can be divided into ash type (ZDDP type) and ashless type. Gray type anti-wear hydraulic oil has good anti-wear proper...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/10C10N30/12C10N40/08
CPCC10M169/044C10M2205/02C10M2205/022C10M2205/024C10M2205/026C10M2207/026C10M2207/123C10M2207/283C10M2209/084C10M2215/064C10M2215/065C10M2215/223C10M2219/106C10M2223/04C10M2223/041C10M2223/047C10M2229/041C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2030/45C10N2040/08
Inventor 夏骏远曾红玲俞莎莎冯建湘刘升高刘烨
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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