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Special lubricating grease composition for concrete pump truck and preparation method thereof

A grease composition and technology for concrete pump trucks, applied in the field of grease, can solve problems such as wear and short service life, and achieve the effects of improving steel-plastic lubrication performance, high heat resistance, and slowing down the wear rate

Active Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of the prior art that the piston of the concrete pump body wears seriously and the service life is short during the use of the lubricating grease in the concrete pump body, and to provide a kind of special grease for concrete pump trucks with excellent water resistance, good adhesion, wear resistance and excellent lubricating performance. grease

Method used

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  • Special lubricating grease composition for concrete pump truck and preparation method thereof
  • Special lubricating grease composition for concrete pump truck and preparation method thereof
  • Special lubricating grease composition for concrete pump truck and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The special lubricating grease composition for concrete pump trucks has the following components and mass percentages:

[0025]

[0026] The manufacturing process is as follows: put 2500g of calcium-based grease into the kettle, add 500g of silicone oil and 500g of polyether when the temperature rises to 110-130°C, keep the temperature and stir for 30 minutes; stop heating, when the temperature drops to 90-110°C, extract the oil with (Viscosity 20mm at 100°C 2 / s) 1000g Stir 250g of calcium carbonate and 250g of urea-formaldehyde resin, then add, and continue to stir for 30 minutes; then filter, homogenize, and degas to get out of the kettle. The properties of the resulting grease are listed in Table 1.

Embodiment 2

[0028] The special lubricating grease composition for concrete pump trucks has the following components and mass percentages:

[0029]

[0030] The manufacturing process is as follows: put 2900g of lithium-based grease into the kettle, add 400g of silicone oil and 400g of polyether when the temperature rises to 110-130°C, keep the temperature and stir for 30 minutes; stop heating, and when the temperature drops to 90-110°C, extract the (Viscosity 30mm at 100°C 2 / s) 900g Stir 200g of calcium carbonate and 200g of urea-formaldehyde resin evenly, then add, and continue to stir for 30 minutes; then filter, homogenize, and degas to get out of the kettle. The properties of the resulting grease are listed in Table 1.

Embodiment 3

[0032] The special lubricating grease composition for concrete pump trucks has the following components and mass percentages:

[0033]

[0034] The manufacturing process is as follows: put 3300g of composite lithium base grease into the kettle, add 300g of silicone oil and 300g of polyether when the temperature rises to 110-130°C, keep the temperature and stir for 30 minutes; stop heating, when the temperature drops to 90-110°C, use the pumping Oil (viscosity 40mm at 100°C 2 / s) 750g Stir 150g of calcium carbonate and 200g of urea-formaldehyde resin evenly, then add, and continue to stir for 30 minutes; then filter, homogenize, and degas to leave the kettle. The properties of the resulting grease are listed in Table 1.

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Abstract

The invention provides a lubricating grease composition for a concrete pump truck and a preparation method of the lubricating grease composition. The lubricating grease composition comprises the following components: high-viscosity base oil, silicon oil, polyether, calcium carbonate, urea resin and base grease. The lubricating grease composition is based on a lubricating grease soap base or non-soap base grease, and by adding viscosity-improving, waterproof and wearing resistant components, a special lubricating grease product for a piston type concrete pump truck is prepared. Compared with the prior art, the lubricating grease composition is excellent in water spraying resistance, rusting and corrosion resistance, oxidation stability and pumping property, the water resistance, the adhesion property and the wearing resistance of a product are greatly improved, and most importantly, the steel-plastic lubrication property of equipment is improved according to practical use condition of equipment. According to the practical use condition of equipment, the abrasion speed of a pump piston can be alleviated, the service life of the piston is prolonged, and the lubricating grease composition is applicable to lubrication and protection of pistons and cylinders under the working conditions of the piston type concrete pump truck.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, in particular to a special lubricating grease composition for concrete pump trucks and a preparation method thereof. Background technique [0002] Concrete is one of the most important materials in construction projects at this stage. In construction, the equipment used for pouring concrete is a pump truck. The concrete pump truck is a machine that uses pressure to continuously transport concrete along the pipeline. It is mainly composed of a pump body and a delivery pipe. composition. Common types of pump body are piston type, extrusion type and hydraulic diaphragm type. [0003] The pumping device of the piston concrete pump truck is mainly composed of a stirring device, a main hydraulic cylinder, a concrete cylinder, a washing room, and a distribution valve. The concrete cylinder and the main hydraulic cylinder share a piston rod. The piston of the main hydraulic cylinder uses hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N30/06C10N30/02C10N30/12C10N30/10C10N40/08
Inventor 王兆坤王先会李素高艳青赵伟
Owner CHINA PETROLEUM & CHEM CORP