Wide temperature range and high extreme pressure composite lithium lubricating grease composition

A lubricating grease and lithium-composite technology, which is applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of high dropping point, low-temperature and extreme-pressure properties of lubricating grease, and cannot meet the requirements of lubricating grease. and other problems, to achieve the effect of excellent high and low temperature performance, excellent extreme pressure and anti-wear performance
CN102250671AActive Publication Date: 2011-11-23CHINA PETROLEUM & CHEM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2011-11-23

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Abstract

The invention relates to a wide temperature range and high extreme pressure composite lithium lubricating grease composition. The composite lithium-based lubricating grease composition provided by the invention is prepared from poly-alpha-olefin synthetic oil and ester oil as base oils and two-component composite lithium soap as a thickening agent, and an antioxidant, an anticorrosion and antirust agent and an extreme-pressure anti-wear additive are added. Due to the appropriate proportion of raw materials, the lubricating grease has excellent high and low temperature performance, the dropping point is greater than 260 DEG C, and the low-temperature (-40 DEG C) torque is not higher than 0.98 N.m during starting and is not higher than 0.50 N.m during running; the lubricating grease also has excellent extreme-pressure anti-wear properties, the sintering capacity is not lower than 3089 N, the Timken 0K value is up to 267 N, and the anti-wear performance (tested by a four-ball machine method) is not greater than 0.60 mm. Therefore, the lubricating grease provided by the invention can be used for lubricating high-load equipment within a wide temperature range.
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Description

technical field

[0001] The invention relates to a complex lithium-based lubricating grease composition with excellent extreme pressure and anti-wear properties, which is composed of base oil, thickener and additives and can be used in a wide temperature range. Background technique

[0002] With the development of modern industry, especially the continuous upgrading and replacement of technology and equipment in metallurgy, automobile, mining and other industries, the requirements for high temperature performance of lubricating grease are getting higher and higher. Equipment that needs to be used outdoors also has high requirements for low temperature performance, and some equipment requires a minimum operating temperature of -40°C or even lower. In order to improve production efficiency and reduce costs, in metallurgy, mining, automobile and other industries, equipment large-scale, automation, and heavy-duty are a development trend, which puts forward higher requirements for...

Claims

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