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A kind of gear oil with super long oil change period and preparation method thereof

A technology of oil change cycle and gear oil, which is applied in the field of lubricating oil, can solve problems such as short service life, and achieve good oxidation resistance, good compatibility, good sealing performance, clean dispersion and hydrophobicity

Active Publication Date: 2022-04-19
北京盛鑫和谐润滑油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of short service life of traditional gear oils in the prior art, the first purpose of the present invention is to provide a gear oil with an ultra-long oil change interval, which has the advantage of an oil change interval of up to 500,000 kilometers

Method used

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  • A kind of gear oil with super long oil change period and preparation method thereof
  • A kind of gear oil with super long oil change period and preparation method thereof
  • A kind of gear oil with super long oil change period and preparation method thereof

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preparation example Construction

[0047] This application document also discloses a method for preparing gear oil with super-long oil change intervals by using the above-mentioned raw materials, including the following steps:

[0048] Preparation of mixture A: Add olefinic synthetic oils PAO M300, PAO M100, PAO M30 and PAO M6, stir at 60-75°C for 25-35min, add pentaerythritol ester, stir at 60-75°C for 25-35min, mix, Then add polymethacrylate pour point depressant, stir at 60-75°C for 25-35 minutes, mix, dissolve the pour point depressant in synthetic oil, add viscosity index improver, stir at 60-75°C for 30 minutes -45min, mixed to obtain mixture A;

[0049] Preparation of mixture B: adding antirust agent, oily agent, detergent, extreme pressure antiwear agent and metal deactivator to alkylnaphthalene, stirring at constant temperature at 65-75°C for 25-35min, and mixing to obtain mixture B;

[0050] Preparation of mixture C: Mix mixture B and long-acting compounding agent, stir at 65-75°C for 25-35 minutes a...

preparation example 1

[0054] The preparation method of the long-acting composite agent comprises the following steps: in parts by weight: adding 0.4 parts of alkyl phosphate, 0.8 parts of octylamine and 0.8 parts of borate, stirring, raising the temperature to 120°C, and then stirring at constant temperature for 20 minutes;

[0055] Add 0.6 parts of sulfur-phosphorus organic molybdenum, stir, adjust the temperature to 65° C., and then stir at constant temperature for 30 minutes, wherein the sulfur-phosphorus organic molybdenum is selected from dialkyl molybdenum dithiophosphate.

preparation example 2

[0057] The preparation method of the long-acting composite agent comprises the following steps: in parts by weight: adding 0.3 parts of alkyl phosphate, 0.5 parts of octylamine and 0.5 parts of borate, stirring, raising the temperature to 110°C, and then stirring at constant temperature for 25 minutes;

[0058] Add 0.5 parts of sulfur-phosphorus organic molybdenum, stir, adjust the temperature to 60° C., and then stir at constant temperature for 35 minutes. The sulfur-phosphorus organic molybdenum is selected from nitrogen-containing dialkyl dithiophosphate oxymolybdenum.

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Abstract

The invention discloses a gear oil with an ultra-long oil change period and a preparation method thereof. The gear oil is prepared from the following raw materials: ultra-high viscosity olefin synthetic oil, polymethacrylate type pour point depressant, viscosity index improver, Parts of pentaerythritol ester, long-acting compounding agent, alkylnaphthalene base oil, defoamer, antirust agent, oily agent, detergent, extreme pressure antiwear agent and metal deactivator; the invention also discloses the preparation of the above gear oil The method comprises the following steps: adding PAO, pentaerythritol ester, polymethacrylate type pour point depressant, and viscosity index improver to obtain mixture A; adding extreme pressure antiwear agent, antirust agent, detergent, Metal deactivator and oily agent to obtain mixture B; mixture B is mixed with long-acting compounding agent to obtain mixture C, mixture A is mixed with mixture C, and defoamer is added. The gear oil prepared by the invention has excellent thermo-oxidative stability, and the viscosity loss is small during use, and has an oil change period as long as 500,000 kilometers.

Description

technical field [0001] The invention relates to the field of lubricating oil, more specifically, it relates to a gear oil with a super long oil change period and a preparation method thereof. Background technique [0002] With the rapid development of society, road transportation plays an important role in life. The drive of the car is mainly transmitted by gears, but the gears will be worn during the transmission process. Gear oil plays an important role in this process and can lubricate Gears reduce friction and make power output more stable. Traditional gear oils have a short service life, resulting in frequent replacement of gear oils, resulting in economic losses and environmental pollution. Contents of the invention [0003] Aiming at the problem of short service life of traditional gear oil in the prior art, the first purpose of the present invention is to provide a gear oil with a super-long oil change interval, which has the advantage of an oil change interval of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M177/00C10N30/02C10N30/06C10N30/12C10N30/04C10N30/14C10N30/10C10N40/04
CPCC10M169/044C10M177/00C10M2205/0206C10M2207/283C10M2209/084C10M2205/026C10M2203/065C10M2223/047C10M2219/044C10M2219/106C10M2215/223C10M2229/041C10M2227/09C10M2223/04C10M2227/061C10M2215/04
Inventor 王春耕王春勇
Owner 北京盛鑫和谐润滑油脂有限公司