Conductive bearing grease composition and preparation method thereof

A bearing lubrication and composition technology, which is applied in the field of conductive bearing grease composition and its preparation, can solve problems such as poor performance of grease, and achieve excellent lubricating performance, improved oxidation resistance, and excellent oxidation resistance.

Active Publication Date: 2020-11-03
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects and deficiencies of poor grease performance in the prior art, th

Method used

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  • Conductive bearing grease composition and preparation method thereof
  • Conductive bearing grease composition and preparation method thereof
  • Conductive bearing grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the lubricating grease composition provided in this example: raise the temperature of 50% of the organic amine and the total base oil to 70-90°C, and simultaneously raise the temperature of 50% of the diisocyanate and the total base oil to 70-90°C, pour the two groups into The reaction kettle is mixed and stirred, heated to 90-100°C and kept at a constant temperature for 5-30 minutes. During the constant temperature process, the polymer-dispersed liquid crystal solution is added, and the temperature is slowly raised to the maximum temperature of 190°C at a rate of 5°C / min, and the temperature is kept at a constant temperature for 5-30 minutes. When the temperature drops to 100°C, add antioxidant, extreme pressure anti-wear agent, and rust inhibitor in turn, stir and cool down to 60°C, grind and degas to obtain the finished grease. The specific ratio of the grease composition provided in this embodiment is shown in Table 1 below.

Embodiment 2-8

[0028] The grease preparation method was the same as in Example 1, except that the formula ratio of the grease composition in each embodiment was different, see Table 1 for details.

[0029] Table 1 embodiment grease composition proportioning

[0030]

[0031]

experiment example 1

[0033] This experimental example evaluates the comprehensive performance of the conductive bearing grease composition in Examples 1-8 of the present invention, and the test results are shown in Table 2.

[0034] The anti-wear performance adopts the four-ball machine method, the test method is SH / T 0204, the speed is 1200rpm, the temperature is 75°C, and the test time is 30 minutes. After the test is completed, measure the average wear scar diameter of the three balls below. The smaller the wear scar, the grease is more resistant to wear The better the performance; in the machinery industry, according to JB / T5414 (measurement method of vibration acceleration of rolling bearings), the vibration noise of bearings is divided into Z1 / Z2 / Z3 / Z4 groups, and each level has a difference of 4 decibels (dB). Under the specified test conditions, the noise performance of the grease is tested on the S0910 acceleration type vibration instrument; the pressurized differential thermal analysis PD...

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Abstract

The invention relates to a conductive bearing grease composition and a preparation method thereof; wherein the conductive bearing grease composition comprises the following components by weight: 12-23parts of a thickening agent, 64-74 parts of base oil and 8-16 parts of an additive; the additive comprises a conductive material, an antioxidant, an extreme pressure anti-wear agent and an antirust agent, the conductive material accounts for 1-2 parts; the thickening agent is a dipolyurea compound; the base oil is selected from at least two of ester synthetic oil, ether synthetic oil and poly-alpha-olefin. The conductive type bearing lubricating grease provided by the invention has excellent comprehensive performance, enables a bearing to form enough long-time lubrication protection under harsh use conditions, and is suitable for working condition lubrication with harsh low-noise use requirements.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a conductive bearing lubricating grease composition and a preparation method thereof. Background technique [0002] In recent years, bearings have been required to be smaller, lighter, and quieter. In general, the bearings are lubricated with grease, and the grease mainly plays the role of lubrication, sealing, protection and shock absorption, thereby prolonging the service life of the bearing. When the bearing is under the joint action of abnormal high temperature, high speed and variable load, the lubricating film between the contact surfaces will be oxidized. When the anti-oxidation and anti-wear properties of the grease are poor, it will cause friction and wear between the bearing parts, and Friction will also generate static electricity. During the discharge process, densely distributed electric corrosion pits will be formed on the raceway of the bearing ring. Th...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N40/02C10N30/08C10N30/10C10N30/06C10N30/12C10N10/04
CPCC10M169/00C10M177/00C10M2205/0206C10M2207/2805C10M2207/0406C10M2215/1026C10M2215/223C10M2215/064C10M2219/066C10M2227/061C10M2223/045C10M2223/043C10M2219/044
Inventor 陈治冯强张兰英吴宝杰
Owner CHINA PETROLEUM & CHEM CORP
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