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Anti high-pressure, high temperature resistant oxidation lubricant and preparation method thereof

A technology that resists high temperature oxidation and high pressure, and is used in lubricating compositions and other directions

Inactive Publication Date: 2005-10-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above lubricating oils either have good wear resistance, high pressure resistance, or high temperature oxidation resistance, but none of them have good wear resistance, high pressure resistance and high temperature oxidation resistance at the same time. sex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, pour 76% base oil and 19% α-olefin into a blending kettle with a stirrer and mix slightly to make α-olefin synthetic oil, then add 2.0% thiophosphobioctyl zinc salt, 1.0% % tricresyl phosphate, 1.0% 2,6-di-tert-butyl mixed phenol, stirred at 50-60°C for 30 minutes, then added 0.25% heptadecenyl pyrimazolinenyl succinate, 0.25% calcium salt of organic sulfonate and 0.5% polymethacrylate, stirred at 70-80°C for 90-120 minutes until the mixture is completely dissolved and becomes uniform and transparent.

Embodiment 2

[0027] First, pour 78% base oil and 17% α-olefin into a mixing tank with a stirrer and mix slightly to make α-olefin synthetic oil, then add 1.6% thionyl octyl zinc salt, 0.8% Triphenylphosphorothioate, 1.0% 2,6-di-tert-butyl-p-cresol, 0.5% dinonyldiphenylamine, 0.5% thiadiazole derivatives, stirred at 50-60°C for 30 minutes; Then add 0.1% dodecenylsuccinic acid, 0.15% barium dinonyl naphthalene sulfonate and 0.35% polymethacrylate, and stir at 70-80°C for 90-120 minutes until the mixture is completely dissolved and uniformly transparent .

Embodiment 3

[0029] First, pour 76% base oil and 20% α-olefin into a blending kettle with a stirrer and mix slightly to make α-olefin synthetic oil; then add 1.5% thionyl octyl zinc salt, 0.7% Tricresyl phosphate, 1.0% 2,6-di-tert-butyl mixed phenol, stirred at 50-60°C for 30 minutes; then add 0.1% heptadecenyl pyrimazolinenyl succinate, 0.3 % organic sulfonic acid calcium salt, 0.4% polymethacrylate, stirring at 70-80°C for 90-120 minutes until the mixture is completely dissolved and becomes uniform and transparent.

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PUM

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Abstract

The present invention discloses a lubricating oil capable of resisting high pressure and resisting high temperature oxidation for deep-weel electric pump and its preparation method. Its composition includes base oil, alpha-olefin synthetic oil, at least an antioxidant corrosion-resisting agent, extreme pressure phosphorus or sulfur contained ashless antiwear agent, amine high-temperature antioxidant and metal deactivator, metal cleaning agent, rust-resisting agent and pour point reducer. Said invention also can be used for making hydraulic transmission mechanical lubricating oil.

Description

technical field [0001] The invention relates to a lubricating oil for hydraulic transmission and a preparation method thereof, in particular to a high-pressure, high-temperature, oxidation-resistant and wear-resistant hydraulic lubricating oil for deep well electric pumps. Background technique [0002] Existing anti-wear hydraulic oil compound agent has "Lub.Eng." 1990, the anti-wear hydraulic oil compound agent introduced in 1 "The Evolution of petroleum Based Hydraulic Fluids" (Kent.B.Grover) has LZS5178, when the dosage is When it is 0.85-1.20% (mass fraction), it reaches Denision HF-0, HF-1, HF-2 international standards. The anti-wear hydraulic oil compound agent developed by Beijing Institute of Petrochemical Sciences has a dosage of 2.0% (mass), and the anti-wear hydraulic oil compound agent developed by Nanjing Edison Company has a dosage of 0.85% (mass). The above lubricating oils either have good wear resistance, high pressure resistance, or high temperature oxidat...

Claims

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Application Information

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IPC IPC(8): C10M145/14
Inventor 邹海峰姜文勇王洪艳甘树才李俊锋
Owner JILIN UNIV
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