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Solventless supergear lubricant and preparing method thereof

A lubricant and solvent-free technology, applied in the field of lubricants and their preparation, can solve problems such as low flash point, poor volatility of new solvents, and weakened wetting performance

Inactive Publication Date: 2004-12-08
上海纳克润滑技术有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of product solves the problem of environmental pollution caused by freon solvents, the volatility of the new solvent used is lower than that of freon, which affects the adhesion performance of the lubricant, thus weakening the wetting performance
At the same time, due to the use of hydrocarbon solvents, the flash point is low, and there is a fire hazard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0004] The preparation process of specific examples of the present invention will be described in further detail below (based on the production of 1 ton of product).

[0005] A. Put 150kg of refined mineral oil (viscosity at 40°C: 100cst to 1000cst), 100kg of polybutene (molecular weight: 600 to 10000) and all 20kg of 12-hydroxystearic acid into the kettle, heat to 80-90°C, and add 2kg of hydrogen Heat saponification of lithium oxide, add 150kg of refined mineral oil at 160±5°C, heat up to 210±2°C, then add 150kg of refined mineral oil for rapid cooling, stir evenly, take out of the pot, cool and grind twice for later use;

[0006] B. The semi-finished product made in the previous step and 40kg polyol synthetic ester (100° viscosity: 1000cst~3000cst), 3kg succinic acid derivative half ester, 40kg acidic phosphate fatty amine salt, 60kg colloidal graphite (0# or 1#) Add to the blending kettle and stir until all the ingredients are mixed evenly;

[0007] C. Colloid mill or thre...

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PUM

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Abstract

A non-solvent lubricant for super-large bearings and its preparation are disclosed. The preparation is carried out by: putting refined mineral 1 / 3, polybutene and 12-oxystearic acid 1 / 5 into a still to heat to 80 - 90oC, adding lithium hydroxide to saponify, adding refined mineral 1 / 3 at 160 minus or plus 5 deg.C and heating to 210 minus or plus 2 deg.C, adding A 1 / 3 and cooling sharply, stirring, grinding twice after cooling; adding the partly-finished goods and all polylol ester, half ester of succinate derivative, acid phosphate fatty amine salt, and colloid graphite into the mixing still, stirring them uniformly and grinding by colloid mill or three-wheel mill. Its advantages include safety and environmental protection, good bearing and adhering ability, to decrease radial vibration and to extend service life of bearings.

Description

Technical field: [0001] The invention relates to a lubricant and a preparation method thereof, in particular to a lubricant suitable for super-large gears on heavy machinery and a preparation method thereof. Background technique: [0002] In order to meet the lubrication requirements of super-large gears on heavy machinery, the lubricants used at this stage can be divided into two types. The first type: mainly to solve the adhesion performance, anti-wear and extreme pressure performance of lubricants for gears, and the products are Freon solvent asphalt products. Due to the presence of solvents and asphalt, it has good pumpability and adhesion. However, it contains freon solvents that can damage the ozone layer of the atmosphere and extreme pressure additives containing active sulfur that are extremely irritating to humans. The second type: the product mainly replaces Freon agent with a solvent that is less polluting to the environment. Although this type of product solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M101/00C10M137/04
Inventor 洪显忠
Owner 上海纳克润滑技术有限公司
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