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Lubricant composition and method for its preparation

A lubricant composition and composition technology, applied in the field of lubricating grease, can solve problems such as mechanical maintenance, movement and replacement of connecting parts that cannot be realized normally, increased connection parts stuck and welded, and cannot be disassembled, so as to reduce the coefficient of friction and prevent The effect of jamming and preventing welding

Active Publication Date: 2018-03-02
埃优诺特种新材料科技(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bolts, nuts, iron pins and other metal connecting parts made of heat-resistant steel or stainless steel may be welded or stuck due to instability at extreme high temperatures, making it difficult or impossible to disassemble, making mechanical maintenance, movement, The process of replacing connecting parts and so on cannot be realized normally
[0003] In the prior art, ordinary molybdenum disulfide grease, graphite block or other metal materials are generally used for metal connecting parts to try to solve the phenomenon of welding and jamming, but none of them can solve the high temperature operation of 1400°C and above. stuck and soldering problems
After high temperature, ordinary grease and lubricating oil are easily evaporated. In addition, there are some lubricating products with high temperature residues, and the coke produced by them will also increase the sticking and welding of connecting parts.

Method used

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  • Lubricant composition and method for its preparation

Examples

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Effect test

preparation example Construction

[0045] The present invention also provides a preparation method of the lubricant composition, including the step of mixing the components of the composition.

[0046] Preferably, the method comprises the steps of:

[0047] (1) Pour polyurea-based grease into a stainless steel blending kettle and heat to 70-80°C;

[0048] (2) adding the tackifier, antioxidant, solid additive, extreme pressure and anti-wear agent, insulated and mixed and stirred for 30 minutes to 1 hour;

[0049] (3) After being cooled to normal temperature, it is taken out of the kettle, and the finished composition is obtained after grinding.

Embodiment 1

[0052] Mix 42 parts of pentaerythritol ester base oil (Hatco, USA, brand: HATCOL3320) with 6 parts of cyclohexane diisocyanate (Yutai Haina Environmental Protection Technology Co., Ltd., brand: MDI-100), and heat to 75 ° C to dissolve , to obtain the first solution; 45 parts of pentaerythritol ester base oil (U.S. Hatco company, brand: HATCOL 3320) and 4 parts of octadecylamine (Sichuan Tianyu Oleochemical Co., Ltd., brand: 9518) were mixed, heated to 75 ° C, Then add 2 parts of aniline (Dongying Longxing Chemical Co., Ltd., trade mark: aniline) and 1 part of methylaniline (Shanghai Yiji Industrial Co., Ltd., trade mark: methylaniline), stir well to obtain the second solution; The first solution was injected into the second solution, mixed and stirred at a constant temperature, and then the temperature was raised to 160° C., and kept stirring to obtain a polyurea-based grease.

[0053] Add 100 parts of the above-mentioned polyurea-based grease into a clean stainless steel blen...

Embodiment 2

[0055] Add 100 parts of polyurea-based grease (preparation method is the same as in Example 1) into a clean stainless steel blending kettle, heat up to 70°C and stir, add 15 parts of tackifier polyisobutylene (Korean Daelim Company, brand PB2400), 1.5 1 part of antioxidant containing ester-based high molecular weight phenol (Basf, Germany, brand: IRGANOX L135), adding 20 parts of solid additive nickel powder (Beijing Xingrongyuan Technology Co., Ltd., brand: FNiN-80), adding 2 parts of Extreme pressure antiwear agent antimony dialkyldithiocarbamate (Vanderbilt Company of the United States, brand: Vanlube 73, the same below), stirred at a constant temperature of 70°C for 1 hour, cooled to normal temperature, and then discharged from the kettle, using a three-roll mill The finished composition II is obtained after milling.

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Abstract

The invention discloses a lubricant composition and a preparation method thereof. The lubricant composition of the present invention comprises the following components: (a) polyurea-based grease, (b) tackifier, (c) antioxidant, (d) solid additive, (e) extreme pressure antiwear agent . The lubricant composition of the present invention has excellent lubricating protection performance under extreme high temperature conditions, solves the phenomenon of jamming and welding of metal connecting parts under extreme high temperature conditions, and effectively prolongs the service life of metal connecting parts. When working under long-term high-temperature conditions, the metal connecting parts can not only be easily disassembled, but also prevent the cracking of screws and nuts under high-temperature stress.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a lubricant composition and a preparation method thereof which are applied in industries such as metallurgy, electric power, textile printing and dyeing, papermaking, engineering plastics, automobiles, etc. . Background technique [0002] When industries such as metallurgy, electric power, textile printing and dyeing, papermaking, engineering plastics, and automobiles perform high-temperature operations, the operating temperature of continuous casting machines and roller tables in front of furnaces in the metallurgical industry reaches above 600°C, heat setting machines in the textile printing and dyeing industry, and The working temperature of the paint spraying workshop has also reached above 250°C. In addition, the high temperature of up to 1400°C is also easy to occur in the working conditions such as the connecting bolts of the continuous casting machine and the fixing bolt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M161/00C10N30/06C10N30/10
Inventor 孙宗飞王瑞兴
Owner 埃优诺特种新材料科技(山东)有限公司