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Open-type gear grease composition

A technology of gear lubricating grease and composition, applied in the field of lubricating oil, can solve the problems of poor anti-pollution ability, uneven tooth surface distribution, high price, and achieve the effect of outstanding water resistance

Inactive Publication Date: 2008-08-06
益田润石(北京)化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although bituminous gear oil is a traditional oil, it still has the following disadvantages in its application: poor viscosity-temperature performance, easy to become brittle in winter, easy to peel off from the gear, causing wear; It will cause coking or cracking of the lubricant; when using spray lubrication, it is easy to cause blockage of the spray system; poor anti-pollution ability, easy to absorb and retain dirt, resulting in abrasive wear of gears; uneven distribution on the tooth surface, replacement Oil is cumbersome; flung lubricant is difficult to clean due to bitumen
However, compared with mineral oil, the cost of PAO base oil is too high, especially the price of high-viscosity PAO is higher! This product has a high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-2

[0035] The production process of product of the present invention is example with 100kg test product, and production process is as follows:

[0036] Add about 1 / 2 of the mineral oil, antioxidant and 12-OH lithium stearate into the kettle, stir and heat to 210°C, and keep at constant temperature for 10 minutes.

[0037] Add an appropriate amount of mineral oil, cool to 185°C, and keep for 5 minutes.

[0038] Cool to 140° C. with 1 hour, add remaining mineral oil, synthetic oil, 12-OH calcium stearate (barium).

[0039] Add solid additives, sulfur-containing and phosphorus-containing additives below 110°C, stir and cool to below 70°C and add other additives.

[0040] Grind and roll three times with three rollers to get the finished product.

[0041] The finished products are tested using the following standards: GB / T 269 Test Method for Cone Penetration of Grease, GB / T 4929 Test Method for Grease Dropping Point, SH / T 0202 Test Method for Extreme Pressure Performance of Grease ...

Embodiment 3

[0043] The production process of the present embodiment is example with 2000kg production product, and production process is as follows:

[0044] Add about all of the mineral oil, antioxidant and 12-OH calcium stearate in the kettle, stir and heat to 140°C, and keep the constant temperature for 10 minutes.

[0045] Fumed silica gel was added and stirred for 1 hour.

[0046] Add synthetic oil, keep the temperature at 120°C, circulate and stir for 1 hour, and cool to below 110°C.

[0047] Then add solid additives, sulfur-containing and phosphorus-containing additives, stir and cool to below 70°C, add other additives, and stir for 40 minutes.

[0048] After filtering and degassing, use a homogenizer to homogenize at 15MPa to obtain a finished product.

[0049] The finished product adopts the monitoring method identical with embodiment 1,2 to detect. The raw material composition and test results of the product are shown in Table 1.

[0050] Table 1 embodiment 1-3 composition a...

Embodiment 4-6

[0057] Basic preparation process is the same as embodiment 1, and difference is that each composition and test result are as follows:

[0058] project

[0059] polyisobutylene

[0060] The open gear lubricating grease composition of the present invention has outstanding water resistance, adhesion, and anti-wear extreme pressure properties; it is harmless to the environment because it does not contain solvent and asphalt.

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Abstract

The invention provides an open gear grease composition, which comprises the following components and the weight percentage contents are that gelatinizer 2-6%, mineral oil 20-60%, synthetic oil 20-60%, antioxidant 0.3-1%, oil solubility anti-wear extreme pressure additive 1-15%, solid additive 3-20% and rust inhibitor 1-3%. The open gear grease composition of the invention does not contain dissolvent and bitumen, which has no harmless to environment, and solves the problems that bitumen-type open gear oil has bad pollution and low-temperature performance, and the flowability of open gear grease is bad. The open gear grease composition has outstanding water resistance, adhesiveness and antiwear and extreme pressure property.

Description

technical field [0001] The present invention relates to a lubricating oil, in particular to an open gear lubricating grease composition applied to large equipment. Background technique [0002] Lubricants for open gears not only need good anti-wear and extreme pressure properties, but also good adhesion and suitable fluidity. At present, open gear lubricants mainly include asphalt-type open gear oil, high-viscosity gear oil, and open gear lubricating oil. [0003] Asphaltene and its solvent-diluted open gear oil is a traditional oil in open gear oil. It is based on asphaltene and added with certain functional additives. It is heated to soften before use or some volatile solvents are added. Spray it before use. Or paint, after the solvent volatilizes, a layer of plastic rubber covers the tooth surface, which can prevent wear, dust and water damage. For example, the application number is 200410049765.0, and the name of the invention is a kind of open gear oil, with petroleum...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M101/02C10M117/00C10M135/00C10M137/10C10M125/00C10M133/44C10N30/06C10N30/12C10N40/04
Inventor 王金波于海英黄学东黄学智甄轶
Owner 益田润石(北京)化工有限公司
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