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Anti micro-pitting industrial gear oil composition

An industrial gear oil, anti-micro-pitting technology, applied in the field of lubricating oil, can solve the problems of loss of metal material on the tooth surface, affecting the life of the gear, changing the geometric size of the gear, etc., to inhibit pitting corrosion, improve lubrication stability, and ensure normal operation. running effect

Active Publication Date: 2011-04-27
辽宁海华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The appearance and expansion of pitting will lead to the loss of metal material on the tooth surface and change the geometric dimensions of the gear, thus affecting the life of the gear pair

Method used

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  • Anti micro-pitting industrial gear oil composition
  • Anti micro-pitting industrial gear oil composition
  • Anti micro-pitting industrial gear oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Anti-micropitting industrial gear oil composition, its components are proportioned as follows by weight percentage:

[0031] Mineral base oil 150BS: 55.8%, mineral base oil 150N: 35.38%, polyalphaolefin pour point depressant: 0.3%, polyester: 6.0%, sulfur phosphorus nitrogen compound extreme pressure antiwear agent: 1.6%, borate extreme pressure Antiwear agent: 0.2%, Ciba Irganox phenolic antioxidant: 0.5%, amine phosphate mixture rust inhibitor: 0.2%, acrylate non-silicon antifoaming agent: 0.02%.

[0032] Its preparation method is to firstly mix mineral base oil, polyester and polyalphaolefin pour point depressant and heat it to a temperature of 60-70°C. After mixing for 0.5-1 hour, add extreme pressure anti-wear agent, antioxidant, rust inhibitor, Anti-foaming agent, after reconciling at 50-60°C for 2-4 hours, the analysis and testing of viscosity, viscosity index, anti-emulsification, anti-foaming property and other items can be carried out, and the finished product...

Embodiment 2

[0038] Anti-micropitting industrial gear oil composition, its components are proportioned as follows by weight percentage:

[0039] Mineral base oil 150BS: 70.67%, mineral base oil 500N: 18%, polyalphaolefin pour point depressant: 0.5%, polyester: 8.0%, sulfur phosphorus nitrogen compound extreme pressure antiwear agent: 1.7%, borate extreme pressure Antiwear agent: 0.3%, Ciba Irganox phenolic antioxidant: 0.6%, phosphate amine mixture antirust agent: 0.2%, acrylate non-silicon antifoaming agent: 0.03%.

[0040] The preparation method is the same as in Example 1.

[0041] After testing, this ratio is 320 viscosity grade anti-micropitting industrial gear oil. The specific performance test results are shown in Table 2.

[0042] Table 2 Example 2 Anti-micropitting industrial gear oil performance testing results

[0043]

[0044] Example 2

[0045] Anti-micropitting industrial gear oil composition, its components are proportioned as follows by weight percentage:

[0046] Mi...

Embodiment 3

[0049] Table 3 Example 3 Anti-micropitting industrial gear oil performance testing results

[0050]

[0051] In the above embodiments, the extreme pressure antiwear agent of sulfur phosphorus nitrogen compound is one or both of trialkylamines, trihydroxy phosphorothioate, thiadiazole compounds or dithiocarbamate compounds. mixture of the above. Hydrorefined mineral base oil 150N, 450N, 500N has a kinematic viscosity of 20-100mm at 40°C 2 / s, the kinematic viscosity of bright stock 150BS at 40°C is 400-500mm 2 / s. Ciba Irganox phenolic antioxidant can be replaced by one or a combination of octyl butyl dianiline and 2,6-di-tert-butyl p-cresol or combined with octyl butyl dianiline and 2,6-di One or two kinds of tert-butyl-p-cresol are used in combination; polyester is a high molecular weight polymer of polyol fatty acid ester, with a molecular weight of 15,000-25,000 and a kinematic viscosity of 2,100-12,000mm at 40°C 2 / s, the viscosity index is 200-260, and the thermal w...

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Abstract

The invention relates to an anti micro-pitting industrial gear oil composition. The composition is characterized in that: a preparation method comprises the following steps of: mixing mineral base oil of the complete components, 5.0 to 10.0 percent of polyester and 0.2 to 3.0 percent of pour point depressant component; heating to the temperature of between 60 and 70 DEG C; blending for 0.5 to 1 hour until the mixture is uniform; then adding 0.5 to 3.0 percent of extreme pressure antiwear additive and 0.5 to 3.0 percent of antioxygen component; and blending at the temperature of between 50 and60 DEG C for 2 to 4 hours. Compared with the prior art, the invention has the advantages that: 1) the mineral base oil is adopted, so the composite is suitable for the lubricating requirement of large-scale heavy machinery; 2) the extreme pressure antiwear additive with anti micro-pitting performance is added, so the formation and generation of pitting can be effectively avoided or inhibited, andthe normal operation of a large-scale heavy machinery gear transmission device can be ensured; and 3) the polyester is added simultaneously, so the lubricating stability of an oil product at a high temperature can be effectively improved.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to an anti-micropitting industrial gear oil composition used for a closed industrial gear transmission. Background technique [0002] Gear transmission is the most important type of transmission in mechanical transmission. It has many types and is widely used. The transmitted power reaches hundreds of thousands of kilowatts, and the peripheral speed can reach 200m / s. Its main features are: 1) high efficiency; 2) compact structure ; 3) reliable operation and long service life; 4) stable transmission ratio; 5) high manufacturing and installation precision requirements, relatively expensive price, and not suitable for use in occasions where the transmission distance is too large. Gear transmission is divided into open gear transmission, semi-open gear transmission and closed gear transmission. The closed gear transmission is installed in a precisely machined and tightly closed box with g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N40/04C10N30/12
Inventor 李元鸿崔阳李治辉周丽娟吕焕明李明慧杜尚君田微
Owner 辽宁海华科技股份有限公司
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