Unlock instant, AI-driven research and patent intelligence for your innovation.

Lubricating oil composition for high-speed pump gear and preparation method thereof

A lubricating oil composition and high-speed pump technology, applied in the field of lubricating oil, can solve the problem of high price and achieve the effects of low price, high flash point and excellent viscosity-temperature properties

Active Publication Date: 2016-02-17
CHINA PETROLEUM & CHEM CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary gear lubricating oils on the market are not completely suitable for high-speed pumps, but the special oil for high-speed pumps produced by ApolloOil in the United States is relatively expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The present invention also provides a preparation method of a lubricating oil composition for high-speed pump gears, comprising the following steps:

[0046] Mixing 4wt%-38wt% ester oil and 60wt%-90wt% polyalphaolefin to obtain a mixed solution;

[0047] 0.1wt%~0.3wt% antioxidant, 0.01wt%~0.5wt% metal deactivator, 0.001wt%~0.1wt% dyeing agent, 0.1wt%~5wt% extreme pressure antiwear agent, 0.0005wt% to 0.05wt% of antifoaming agent and 0.5wt% to 10wt% of viscosity index improver are sequentially added to the mixed solution and stirred evenly to obtain a lubricating oil composition for high-speed pump gears.

[0048] According to the present invention, at first ester oil and polyalpha-olefin are mixed, obtain mixed liquid; Then antioxidant, metal deactivator, dyeing agent, extreme pressure antiwear agent, antifoaming agent and viscosity index improver are added In the mixture, stir evenly.

[0049] The present invention has no special limitation on stirring conditions, an...

Embodiment 1

[0053] 90kg of polyalphaolefin and 10kg of isooctyl isotridecanyl sebacate were mixed to obtain a mixed solution;

[0054] Add 1.0kg2,6-di-tert-butyl-p-cresol, 0.5Kg diisooctyldiphenylamine, 3kg tricresyl phosphite, 0.2KgT561, 0.02kg silicone oil, 0.01Kg dyeing agent, 6kg in the mixed solution The ethylene-propylene copolymer is uniformly mixed and filtered to obtain a lubricating oil composition for high-speed pump gears.

[0055] The performance of the obtained lubricating oil composition was tested, and the results showed that its flash point was 225°C, its freezing point was -56°C, its foam property (GB / T12579) was 15 / 0 at 93.5°C, and its kinematic viscosity at 40°C was 35.4mm 2 / s, kinematic viscosity at -40°C is 12350mm 2 / s,T 2 Copper corrosion (GB / 5096) 1b, oxidation corrosion (SH / T0450) metal corrosion is 0.0, kinematic viscosity change at 40°C is -3.1%, bearing capacity (GB / T3142) P B 1083N, P D The value is 1962N, and the diameter of wear spot (SH / T0189) is 0.31...

Embodiment 2

[0057] 90kg of polyalphaolefin and 10kg of C 5-8 Pentaerythritol mixed fatty acid esters are mixed to obtain a mixed solution;

[0058] Add 1.0kg2,6-di-tert-butyl-p-cresol, 0.5Kg diisooctyldiphenylamine, 3kg tricresyl phosphite, 0.2KgT561, 0.02kg silicone oil, 0.01Kg dyeing agent, 6kg in the mixed solution The ethylene-propylene copolymer is uniformly mixed and filtered to obtain a lubricating oil composition for high-speed pump gears.

[0059] The performance of the obtained lubricating oil composition was tested, and the results showed that its flash point was 228°C, its freezing point was -52°C, its foam property was 15 / 0 at 93.5°C, its kinematic viscosity at 40°C was 36.6mm2 / s, and its kinematic viscosity at -40°C 15000mm 2 / s,T 2 Copper corrosion 1b, oxidation corrosion metal corrosion 0.0, kinematic viscosity change at 40°C -0.35%, bearing capacity P B 1177N, P D The value is 1962N, and the diameter of the wear spot is 0.30mm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
flash pointaaaaaaaaaa
dew pointaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a lubricating oil composition for a high-speed pump gear. The lubricating oil composition comprises 60-90% by weight of poly alpha-olefin, 5-38% by weight of ester oil, 0.1-3% by weight of antioxygen, 0.01-0.5% by weight of metal deactivator, 0.1-5% by weight of anti-wear reagent at extreme pressure, 0.0005-0.05% by weight of anti-foaming agents, 0.001-0.1% by weight of colouring agents and 0.5-10% by weight of viscosity index improvers. The lubricating oil composition for the high-speed pump gear has excellent properties for the high-speed pump gear, for example, the flashing point, the ignition point, the low-temperature fluidity, the shear stability, the anti-foaming property, the oxidation stability and the lubricating property are high, the viscosity-temperature characteristic is excellent, and the condensation point is low; the requirement on lubrication of the high-speed pump gear can be met; and moreover, the price of the lubricating oil composition is low.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a lubricating oil composition for high-speed pump gears and a method thereof. Background technique [0002] With the advancement of technology, gears are developing in the direction of small size, high load capacity, and high speed. The size of the gearbox and its lubricating oil capacity continue to decrease, while the friction between the tooth surfaces and the temperature of the working oil are gradually increasing, which accelerates the gear teeth. The friction and wear of the surface affects the working performance of the equipment. Therefore, the importance of gear lubrication is becoming more and more obvious. Lubricating oils are usually required to have excellent extreme pressure and anti-wear properties, load resistance performance, suitable viscosity and good viscosity-temperature properties, good thermal oxidation stability, anti-foaming properties, and water separation...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M111/04C10N40/04C10N30/18C10N30/10C10N30/06C10N30/02
Inventor 马楷刘月皞李玉平
Owner CHINA PETROLEUM & CHEM CORP