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Special lubricating grease composition for steel wire rope

A technology of grease composition and lithium stearate, which is applied in the field of grease, can solve problems such as the inability to use wire ropes for lubrication and protection, and achieve improved adhesion and penetration, improved water resistance and protection, and low production costs Effect

Active Publication Date: 2013-06-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be applied to the surface of the steel wire rope during the steel wire rope manufacturing process, but it cannot be used for the lubrication and protection of the steel wire rope during operation

Method used

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  • Special lubricating grease composition for steel wire rope
  • Special lubricating grease composition for steel wire rope

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] 310g of mineral base oil (100°C kinematic viscosity 5 ~ 20mm 2 / s) into the still, add 28.8g of 12-OH lithium stearate soap, 7.2g of lithium stearate soap. Heat up and stir, when the temperature rises to 210-220°C, stop heating and keep the temperature for 2 minutes. Stir and add 300g of mineral base oil for quenching. Add 4g of diphenylamine when the temperature is 140-150°C. When the temperature drops to 125-130°C, add 30 g of No. 75 microcrystalline wax and stir evenly. Stir again and add the extracted oil (100℃ kinematic viscosity 15~60mm 2 / s) 320g. Take it out of the kettle and grind it three times. The properties of the prepared grease are listed in Table 1.

example 2

[0040] 280g of mineral base oil (100 ° C kinematic viscosity 7 ~ 16mm 2 / s) into the kettle, add 45g of 12-OH lithium stearate soap and 10g of lithium stearate soap, heat up and stir, when the temperature rises to 210-220°C, stop heating and keep the temperature for 2 minutes. Stir and add 440g of mineral base oil for quenching. Add 10 g of diphenylamine when the temperature is 140-150°C. When the temperature drops to 125-130°C, add 50 g of No. 80 microcrystalline wax and stir evenly. Stir again and add the extracted oil (the kinematic viscosity at 100°C is 15-60mm 2 / s) 165g. Take it out of the kettle and grind it three times. The properties of the prepared grease are listed in Table 1.

example 3

[0042] 320g of mineral base oil (100°C kinematic viscosity 7 ~ 16mm 2 / s) into the still, add 22g of 12-OH lithium stearate soap, 4g of lithium stearate soap. Stir and heat up. When the temperature rises to 210-220°C, stop heating and keep the temperature for 4 minutes. Stir and add 260g of mineral base oil for quenching. Add 3 g of diphenylamine when the temperature is 140-150°C. When the temperature drops to 125-130°C, add 21g of No. 70 microcrystalline wax and stir evenly. Stir again and add the extracted oil (the kinematic viscosity at 100°C is 15-60mm 2 / s) 370g. Take it out of the kettle and grind it three times. The properties of the prepared grease are listed in Table 1.

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Abstract

The invention relates to a special lubricating grease composition for a steel wire rope. The composition comprises the following components in percentage by weight: 2.0-5.2% of lithium 12-hydroxystearate soap, 0.5-1.3% of lithium stearate soap, 53.5-76% of mineral base oil, 15.0-40.0% of extract oil, 1.3-6.3% of microcrystalline wax and 0.2-1.2% of diphenylamine. The lubricating grease provided by the invention has the characteristics that blended base oil containing high-viscosity extract oil is utilized to prepare specific-thickness semi-fluid lubricating grease for the steel wire rope, theadhesion and infiltration capability of the product are improved, and the problems of oil splashing, loss, atmospheric environment pollution and the like of the existing product are solved; and a microcrystalline wax additive is used for improving the water resistance and protective properties of the lubricating grease for the steel wire rope. The lubricating grease provided by the invention has dropping point larger than 165 DEG C, is free of volatile solvent, is convenient for coating, has low production cost and enhanced lubrication effects, and can effectively meet the internal and external lubrication and protection requirements of the steel wire rope during operation.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, in particular to a special lubricating grease composition for steel wire ropes. Background technique [0002] Wire ropes are used in many types of machinery and construction equipment, including traction machinery, cranes, elevators, drilling machinery, tower cranes, etc. The wire rope is pre-lubricated during manufacture, mainly the wire rope surface grease and the wire rope core grease. During the working process of the steel wire rope, the pre-added lubricant will be squeezed out due to the tension of the steel wire, or washed away by rain or become a dry grease block and peeled off, so the pre-added lubricant cannot maintain the service life of the steel wire rope for a long time. In order to prevent the wear and tear caused by the mutual phase movement inside the wire rope and prevent the corrosion of the wire rope, it is necessary to add lubricant to the wire rope during operati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10N40/32C10N50/10
Inventor 王先会李素
Owner CHINA PETROLEUM & CHEM CORP
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