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Extreme pressure anti-wear agent composition for gear oil and application of extreme pressure anti-wear agent composition

A technology of extreme pressure antiwear agent and composition, which is applied in the direction of lubricating composition, additives, petroleum industry, etc., can solve problems that need to be further improved, and achieve the effect of excellent extreme pressure and antiwear properties

Active Publication Date: 2020-01-24
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of extreme pressure and antiwear additives in the prior art still needs to be further improved, therefore, it is of great significance to develop high performance extreme pressure and antiwear additives

Method used

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  • Extreme pressure anti-wear agent composition for gear oil and application of extreme pressure anti-wear agent composition
  • Extreme pressure anti-wear agent composition for gear oil and application of extreme pressure anti-wear agent composition
  • Extreme pressure anti-wear agent composition for gear oil and application of extreme pressure anti-wear agent composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The specific components of gear oil extreme pressure antiwear agent composition are shown in Table 1, and its preparation method is as follows:

[0053] 1) Add base oil in proportion, heat up to 50-60°C for heating and stirring, keep it for 2-3 hours, then lower the temperature to 40-50°C;

[0054] 2) Then add the components of extreme pressure agent and anti-wear agent in order of the amount added, from small to large, and stir for 2 to 3 hours until the mixture is completely dissolved and becomes transparent.

[0055] Table 1 Components of gear oil extreme pressure antiwear agent composition

[0056] Raw material components, wt% Component content Group I 150BS base oil margin Group II 150N base oil Appropriate amount Group II hydrogenated No. 6 base oil Sulfurized isobutylene 45 Phosphorothioate complex ester amine salt A 30 Phosphorothioate complex ester amine salt B tricresyl phosphate Thioaminoester ...

Embodiment 2

[0059] The specific components of the extreme pressure and antiwear agent composition for gear oil are shown in Table 2, and its preparation method is the same as in Example 1.

[0060] Table 2 Components of gear oil extreme pressure antiwear agent composition

[0061] Raw material components, wt% Component content Group I 150BS base oil margin Group II 150N base oil Group II hydrogenated No. 6 base oil Appropriate amount Sulfurized isobutylene 30 Phosphorothioate complex ester amine salt A Phosphorothioate complex ester amine salt B 20 tricresyl phosphate 12 Thioaminoester 10 n-butyl phosphite 8

[0062] Among them, the weight percent ratio of Type I 150BS to Type II hydrogenated No. 6 base oil is 1:3.

Embodiment 3

[0064] The extreme pressure and antiwear properties of the gear oil extreme pressure and antiwear composition are detected by the experimental method specified in the national standard as shown in Table 3. The results are shown in Table 3. From the analysis of the test results, it can be seen that the above two examples The extreme pressure and antiwear agent composition of the present invention can reach a certain enterprise standard, and the extreme pressure and antiwear agent for gear oil provided by the invention has excellent extreme pressure and antiwear properties, and can be used in industrial and vehicle gear lubricating oil additives.

[0065] Table 3 Performance testing of gear oil extreme pressure antiwear agent composition

[0066]

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Abstract

The invention relates to an extreme pressure anti-wear agent composition for gear oil and application of the extreme pressure anti-wear agent composition. The composition comprises components in percentage by weight as follows: 10-90wt% of at least one sulfur extreme pressure agent, 10-90wt% of at least one phosphorus extreme pressure anti-wear agent and 0-20wt% of base oil. The extreme pressure anti-wear agent composition for gear oil can be used as a lubricating oil additive for a vehicle drive system gearbox and a drive axle, and has excellent bearing and anti-wear performance.

Description

technical field [0001] The invention relates to a gear oil extreme pressure anti-wear agent composition and application thereof. Background technique [0002] In the traditional lubrication theory, lubrication is divided into liquid lubrication and boundary lubrication. The two metal surfaces that are in relative motion are completely separated by lubricating oil film, and there is no direct contact between the metals. This lubrication state is called liquid lubrication; as the load increases, the thickness of the oil film between the metal surfaces gradually decreases. When the load increases to To a certain extent, the continuous oil film is broken by the peaks of the metal surface, and direct contact between the metal surfaces is locally generated. This lubrication state is called boundary lubrication. [0003] In boundary lubrication, when the metal surface only bears a moderate load, if there is an additive that can be adsorbed on the metal surface or wear violently wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M141/10C10N30/06C10N40/04
CPCC10M169/04C10M141/10C10M2219/022C10M2219/024C10M2219/082C10M2223/04C10M2223/041C10M2223/045C10M2223/047C10M2203/1025C10M2203/1006
Inventor 文彦龙孟震英张国茹周轶安岸斐王宁
Owner CHINA PETROLEUM & CHEM CORP