High-temperature grease and preparation method thereof

A lubricating grease and high-temperature technology, which is applied in the field of high-temperature lubricating grease and its preparation, can solve the problem of expensive replacement parts and achieve excellent water stability

Active Publication Date: 2010-05-12
辽宁海华科技股份有限公司
View PDF1 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These unfavorable conditions such as watery, dusty, and heavy loads have a great impact on the bearings of rolling equipment, and the cost ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Multi-effect high-temperature lubricating grease is characterized in that the weight ratio of each component is as follows:

[0033] High viscosity mineral oil: 79.5

[0034] Polyurea: 6

[0035] Calcium Petroleum Sulfonate: 10

[0036] Conversion agent (methanol): 1

[0037] Rust inhibitor (barium petroleum sulfonate or benzotriazole): 1

[0038] Extreme pressure agent (molybdenum dialkyldithiocarbamate): 1

[0039] Antioxidant (diphenylamine and 2,6-di-tert-butyl mixed phenol): 0.5

[0040] Tackifier (polybutene): 1

[0041] The production process of multi-effect high-temperature lubricating grease is as follows: add 1 / 2 base oil, high-alkaline petroleum calcium sulfonate, and conversion agent (add 2-4 times water) according to the specified weight ratio, and convert 20 at 40-80°C -60 minutes, then heat up to 110°C for dehydration, then add the remaining 1 / 2 base oil, cool down to 90-100°C, add isocyanate (MDI100) and organic amines (octadecylamine, aniline, cyc...

Embodiment 2

[0043] Multi-effect high-temperature lubricating grease is characterized in that the weight ratio of each component is as follows:

[0044] High viscosity mineral oil: 62

[0045] Polyurea: 8

[0046] Calcium Petroleum Sulfonate: 20

[0047] Conversion agent (n-butanol): 2

[0048] Rust inhibitor (barium petroleum sulfonate): 2

[0049] Extreme pressure agent (antimony dialkyldithiocarbamate): 2

[0050] Antioxidant (2,6-di-tert-butyl mixed phenol): 1

[0051] Tackifier (polybutene): 3

[0052] The production process of multi-effect high temperature lubricating grease is the same as embodiment 1.

Embodiment 3

[0054] Multi-effect high-temperature lubricating grease is characterized in that the weight ratio of each component is as follows:

[0055] High viscosity mineral oil: 58

[0056] Polyurea: 10

[0057] Calcium Petroleum Sulfonate: 22

[0058] Conversion agent (n-butanol): 3

[0059] Rust inhibitor (benzotriazole): 1

[0060] Extreme pressure agent (zinc dialkyldithiocarbamate): 3

[0061] Antioxidant (diphenylamine): 1

[0062] Tackifier (ethylene propylene rubber): 3

[0063] The production process of multi-effect high temperature lubricating grease is the same as embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a high-temperature grease and a preparation method thereof, which are widely applied to equipment bearings of production lines in steel mills and steel works. The high-temperature grease contains the following components in weight parts: 45 to 81.5 parts of high-viscosity mineral oil, 4 to 10 parts of polyurea, 10 to 30 parts of high-base number calcium petrolem sulfonate, 1 to 3 parts of transforming agent, 1 to 3 parts of anti-rust agent, 1 to 3 parts of extreme-pressure additive, 0.5 to 1 part of antioxidant, and 1 to 5 parts of thickening agent. The high-viscosity mineral oil is 150BS. The high-temperature grease has higher dropping point, does not turn thin or has lower thinning degree after meeting water; the antirust performance is as good as the new grease after meeting water; and the extreme-pressure performance thereof is reduced by a lower degree or does not reduce after meeting water.

Description

technical field [0001] The invention relates to a high-temperature lubricating grease and a preparation method thereof, which are widely used in equipment bearings of rolling mills and production lines of steelmaking plants. Background technique [0002] Most of the equipment bearings in the production lines of rolling mills and steelmaking plants are lubricated with dry oil, and the working conditions are harsh. The temperature of the steel billet is generally 800-1000 °C, and there is a large amount of cooling water or rolling emulsion to wash away and dust to erode the equipment bearings. [0003] The lubricating greases used in these high-temperature and water-rich parts are generally aluminum-composite greases, lithium-complex greases, and urea-based greases. Due to the limited water resistance of these greases, there are three disadvantages: thinning and loss, bearing rust, and extreme pressure drop. Ordinary extreme pressure grease will be thinned and lost under the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10M169/00C10N30/06C10N30/12C10N50/10C10N40/02
Inventor 刘鹏李治辉李元鸿王亮石峰
Owner 辽宁海华科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap