Grease for calender and preparation method thereof

A technology of lubricating grease and calender, which is applied in the direction of lubricating composition, petroleum industry, thickener, etc., can solve the problems of high price, and achieve the effect of increasing refining temperature, excellent oxidation stability, and high dropping point

Active Publication Date: 2014-11-19
安徽中天石化股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the beginning of this century, some foreign developed countries have begun to study high-performance special grease for calenders, and have achieved good results. Some domestic companies are also using imported special grease for calenders, which brings more benefits to production and equipment maintenance. Good effect, but more expensive

Method used

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  • Grease for calender and preparation method thereof

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Effect test

Embodiment 1

[0027] The embodiment of the present invention provides a kind of lubricating grease specially used in calender, and it comprises according to the weight specific gravity of its raw material composition:

[0028] 6-10 parts of high molecular fatty acid, 3-5 parts of low molecular acid, 4-6 parts of lithium hydroxide, 2-3 parts of calcium hydroxide, 20-30 parts of water, 60-80 parts of base oil, 20-40 parts of base oil 0.2-0.5 parts of antioxidant A, 1.0-2.0 parts of antioxidant B, 0.5-1.0 parts of rust inhibitor, 0.5-1 part of extreme pressure and antiwear agent A, 1-3 parts of extreme pressure and antiwear agent parts, 5-15 parts of tackifier.

[0029] Wherein the high-molecular-weight fatty acid used in this embodiment is 12 hydroxystearic acid, and the low-molecular-weight acid is industrial salicylic acid. Base oil A is highly refined mineral oil 500N; said base oil B is high viscosity highly refined mineral oil 150BS. The antioxidant A is diphenylamine; the antioxidant ...

Embodiment 2

[0031] The present embodiment also provides a kind of preparation method that is specially used in the lubricating grease of calender, it comprises the following steps:

[0032] Provide at least the following raw materials according to the weight ratio of the composition:

[0033] 6-10 parts of high molecular fatty acid, 3-5 parts of low molecular acid, 4-6 parts of lithium hydroxide, 2-3 parts of calcium hydroxide, 20-30 parts of water, 60-80 parts of base oil, 20-40 parts of base oil 0.2-0.5 parts of antioxidant A, 1.0-2.0 parts of antioxidant B, 0.5-1.0 parts of rust inhibitor, 0.5-1 part of extreme pressure and antiwear agent A, 1-3 parts of extreme pressure and antiwear agent parts, 5-15 parts of tackifier;

[0034] (1) Put the base oil A into the saponification kettle according to the weight ratio, add all the high molecular fatty acids according to the formula ratio when the temperature is raised to 60-80° C., mix, and stir for 10-20 minutes;

[0035] (2) Calcium hydr...

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Abstract

The invention relates to a grease for a calender and a preparation method, the grease comprises the following raw materials by weight: 6-10 parts of high-molecular aliphatic acid, 3-5 parts of low molecular acid, 4-6 parts of lithium hydroxide, 20-30 parts of water, 60-80 parts of base oil A, 20-40 parts of base oil B, 0.2-0.5 parts of anti-oxidant A, 1.0-2.0 parts of anti-oxidant B, 0.5-1.0 parts of antirust agent, 0.5-1 part of anti-wear reagent at extreme pressure A, 1-3 parts of anti-wear reagent at extreme pressure B and 5-15 parts of an adhesion agent. While preparing, raw materials are stirred and mixed according to different temperature and certain sequence, and then processed according to the relative technology requirement. The grease has high dropping point, excellent oxidation stability, water-resistance, colloid stability and machinery stability, and has excellent extreme pressure and anti-wear property as well as long usage life.

Description

technical field [0001] The invention relates to a lubricating grease for machinery, in particular to a lubricating grease specially used for calenders and a preparation method thereof. Background technique [0002] The calender is composed of frame, pressure roller and its adjustment device, transmission system and heating system. The frame is usually made of cast iron and is directly installed on both sides of the cast iron or cast steel frame to support the pressure roller bearing, Shaft crossing or roller pre-bending device, roller adjustment device, lubrication device and other auxiliary devices. Roller heating generally uses water vapor or superheated water. Modern calenders use roller bearings instead of traditional sliding bearings to save energy, improve bearing life and product thickness accuracy. It can be seen that there is a certain impact load when the calender works, and it is in a harsh working environment such as high temperature and humidity. The lubricatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M117/00C10M177/00C10N50/10C10N30/10C10N30/06C10N40/02
Inventor 高晓谋高荣权
Owner 安徽中天石化股份有限公司
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