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Lubricating grease for automobile ball joint and preparation method of lubricating grease

A technology of lubricating grease and ball joint is applied in the field of lubricating grease for automobile ball joint and its preparation field, which can solve the problems of metal rod corrosion, grease detachment, oxidation, etc., and achieve the effects of low cost, good adsorption capacity and simple production method.

Active Publication Date: 2018-08-10
广东阿特斯新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the working process of the automobile ball joint, the metal friction pair often wears repeatedly, resulting in the separation and failure of the grease, which further causes the corrosion and oxidation of the metal rod

Method used

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  • Lubricating grease for automobile ball joint and preparation method of lubricating grease
  • Lubricating grease for automobile ball joint and preparation method of lubricating grease
  • Lubricating grease for automobile ball joint and preparation method of lubricating grease

Examples

Experimental program
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Effect test

preparation example Construction

[0048] The preparation method of the above-mentioned lubricating grease for automobile ball joints in one embodiment specifically includes the following steps:

[0049] Step S10: mixing the complex lithium-based thickener with the base oil, heating and stirring, and cooling at a constant temperature to obtain an intermediate product;

[0050] Mixing the complex lithium-based thickener with a certain amount of base oil through step S10 can enable the thickener to be quickly and evenly dispersed in the base oil in the subsequent fat-making process. The more intense the mechanical stirring in the reaction process, the faster the reaction rate. Also faster, for example, after mixing 10 to 22 parts of the lithium complex thickener with 30 to 40 parts of the base oil, heat to 150°C to 200°C, and stir for 1h to 3h. After cooling in a constant temperature box at ~40°C, an intermediate product is obtained; as another example, after mixing 12 parts of the complex lithium-based thickener...

Embodiment 1

[0058] With 15 parts of 12-hydroxystearic acid-azelaic acid lithium base thickener and 35 parts of high viscosity silicone oil (viscosity is 550mm at normal temperature 2 / s) After mixing, heat to 180° C. and stir for 2 h, then perform constant temperature cooling at 25° C. to obtain an intermediate product. Get 0.5 parts of molybdenum disulfide and add it to 200 mL of oleic acid, react at 80°C for 2 hours to obtain modified molybdenum disulfide, add 0.3 parts of modified molybdenum disulfide to 46.6 parts of high-viscosity silicone oil (viscosity at room temperature 550mm 2 / s) after ultrasonic mixing for 2h, mixed with the intermediate product, and added 1 part of phosphite, 0.8 part of dodecenyl succinic acid, 1 part of diphenylamine and 0.3 part of polyisobutylene, at 50 After stirring at ℃ for 2 hours, it was naturally cooled to room temperature to obtain lubricating grease for automobile ball joints. The performance index of grease is shown in Table 1.

Embodiment 2

[0060] With 13 parts of 12-hydroxystearic acid-azelaic acid lithium base thickener and 40 parts of high viscosity silicone oil (viscosity is 800mm at normal temperature 2 / s) After mixing, heat to 190° C. and stir for 2.5 hours, then perform constant temperature cooling at 25° C. to obtain an intermediate product. Get 1 part of graphene and add it to 100 mL of oleic acid. After reacting for 2 hours at 85 ° C, modified graphene is obtained. 0.5 parts of modified graphene are added to 43.4 parts of high-viscosity silicone oil (viscosity at room temperature is 800mm 2 / s) after ultrasonic mixing for 2.5h, mixed with the intermediate product, and added 1 part of superbasic calcium sulfonate, 0.8 part of sodium carboxylate, 1 part of phenyl-α-naphthylamine and 0.3 part The ethylene-propylene copolymer was stirred at 55°C for 2 hours, and then naturally cooled to room temperature to obtain lubricating grease for automobile ball joints. The performance index of grease is shown in Ta...

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Abstract

The invention discloses lubricating grease for an automobile ball joint. The lubricating grease comprises the following components of: in parts by mass, 75-85 parts of base oil, 10-22 parts of a compound lithium-based thickener, 0.5-2 parts of an extreme-pressure anti-wear agent, 0.3-3 parts of a rust inhibitor, 0.3-2 parts of an antioxidant, 0.05-1 part of a nano inorganic additive and 0.1-1 partof a viscosity index improver. The lubricating grease has the advantages that the lubricating grease for the automobile ball joint has excellent high-and-low temperature performance, small change with the temperature, small low-temperature torque and small starting torque, and the anti-wear anti-friction performance is improved to a certain extent; furthermore, not only can good adsorption capacity between the lubricating grease and a ball joint friction pair be achieved, but also wear resistance, rust prevention, oxidation resistance and other functions can be achieved; in addition, the lubricating grease has a simple preparation method and low cost; besides, the invention also discloses a preparation method of the lubricating grease for the automobile ball joint.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a lubricating grease for automobile ball joints and a preparation method thereof. Background technique [0002] Ensuring that automobile hardware works well and works safely is one of the important guarantees to reduce traffic accidents, which has very high requirements for automobile accessories. Automobile steering linkages, chassis suspension steering devices and other systems all require the use of automotive ball joint accessories, which requires the automotive ball joints to meet a variety of working conditions. [0003] The car ball joint is one of the important key safety parts of the car, which is directly related to the maneuverability, stability and safety of the car. The ball joint is used between the steering system of the car, the steering straight rod, the steering rocker arm and the steering knuckle arm. The ball head is composed of a metal ball stud ...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N30/06C10N30/10C10N30/12C10N30/08C10N50/10
CPCC10M169/00C10M2201/041C10M2201/065C10M2201/066C10M2205/022C10M2205/024C10M2205/026C10M2207/12C10M2207/127C10M2207/1285C10M2215/04C10M2215/064C10M2219/044C10M2223/04C10M2223/049C10M2229/0405C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2050/10C10N2010/02
Inventor 温绿林温绿辉温永育温三顺
Owner 广东阿特斯新材料科技有限公司
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