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Full-synthetic gear/bearing oil for four seasons and preparation method thereof

A gear bearing, a fully synthetic technology, applied in the petroleum industry, lubricating compositions, base materials, etc., can solve the problems of reduced oil performance, high component impurities, and lubrication performance constraints, and achieve excellent extreme pressure resistance and simple process , the effect of convenient production

Active Publication Date: 2009-09-16
精锐化学(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Secondly, the lubricating oil viscosity index of commonly used mineral base oils does not exceed 100. For example, a general-purpose gear oil composition disclosed in the above-mentioned Chinese patent CN1727459A has a viscosity index of only 90. Changing gear oils with different viscosities due to seasonal temperature changes brings great inconvenience to use
[0005] Finally, most traditional gear oils are blended with various additives and various mineral oils, and the production process is complicated. For example, Chinese patent CN1277911C discloses a gear lubricating oil, which contains as many as 11 additives in its formulation. Its production process is divided into many complicated processes such as making A liquid, making B liquid and blending.
[0006] In addition, mineral base oil is extracted from crude oil, and its composition has many impurities, and these impurities will reduce the performance of the oil product, and it is easy to generate sludge and carbon deposits, so the lubricating performance is inevitably restricted by the performance of mineral base oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0049] Add 490 grams of poly-alpha olefin to a mixing tank with a stirrer, stir at 30°C to 60°C for 0.5h to 1.5h, then add 10g of high-performance compounding agent, and stir at 30°C to 60°C for 1h to 3h , to obtain the gear lubricating oil of the present invention. The product performance is shown in Table 1.

[0050] Table 1 Performance test results of a fully synthetic four-season gear bearing oil in implementation example 1

[0051] project Indicator requirements Test results experiment method Kinematic viscosity (40℃), mm 2 / s 61.2～74.8 65.6 GB / T265 viscosity index >130 136 GB / T1995 Flash point (opening), ℃ >200 222 GB / T3536 Pour point, °C <-30

example 2

[0053] Add 98 grams of diester and 392 grams of poly-α-olefin into the blending kettle with agitator, stir at 30°C to 60°C for 1h to 1.5h, then add 10g of high-performance compounding agent, and stir at 30°C to 60°C Stir for 1h to 3h to obtain the gear lubricating oil of the present invention. Product properties are shown in Table 2.

Embodiment 2

[0054] Table 2 Performance test results of a fully synthetic four-season gear bearing oil in implementation example 2

[0055] project Indicator requirements Test results experiment method Kinematic viscosity (40℃), mm 2 / s 135～165 147.8 GB / T265 viscosity index >130 157 GB / T1995 Flash point (opening), ℃ >200 258 GB / T3536 Pour point, °C <30

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Abstract

The invention discloses full-synthetic gear / bearing oil for four seasons and a preparation method thereof. The full-synthetic gear / bearing oil for four seasons is prepared by blending synthetic oil taken as base oil and an additive; the selected base oil is one of ester oil, synthetic hydrocarbon-type oil and a mixture of the ester oil and the synthetic hydrocarbon-type oil; the selected additive is a high-performance complexing agent, which is one of gear oil compound additive, wind turbine oil additive, industrial lubricant friction modifier, general gear oil complexing agent and multifunction gear oil additive; and the blending ratio of the base oil to the additive is 1.0 to 5.0 weight percent of the high-performance complexing agent and the balance of the base oil. According to viscosity grades of the gear oil, the synthetic oil with one or more compositions is added to a blending kettle with a stirrer in required proportion, is stirred for 0.5 to 1.5 hours at a temperature of between 30 and 60 DEG C, and is blended into the base oil of the gear oil; and the base oil is added with the high-performance complexing agent in a certain proportion and stirred for 1 to 3 hours at a temperature of between 30 and 60 DEG C to form the gear lubricant of the invention.

Description

technical field [0001] The invention relates to a gear bearing oil, in particular to a fully synthetic all-season gear bearing oil with a wide temperature range and a high viscosity index and a preparation method thereof, belonging to the technical field of lubricants. Background technique [0002] With the development of science and technology, modern production has higher and higher requirements for the continuity of equipment operation, and the gear devices that are mostly used in the transmission and speed change of various mechanical operation equipment have stricter requirements for lubricants. As we all know, the traditional lubricating oil used in gear devices, that is, gear oil, is mainly formulated with mineral oil as base oil and various additives. For example, Chinese patent CN1727459A discloses a new type of open gear oil composition. Several additives such as viscosity index improver, extreme pressure agent, antiwear agent, metal active agent, antirust agent, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M171/02C10M105/38C10M107/02C10M111/04C10M169/04C10N40/02
Inventor 赵晶玮
Owner 精锐化学(上海)有限公司
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