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Sintering machine slideway sealing lubricating grease and preparation method thereof

A lubricating grease and sintering machine technology, which is applied in the field of lubricating grease, can solve the problems of high temperature loss of lubricating grease and poor wear resistance, and achieve excellent sealing performance, good water resistance, and excellent extreme pressure and anti-wear properties.

Active Publication Date: 2020-05-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a special lubricating grease for sintering machine elastic slideways prepared with composite calcium sulfonate as a thickening agent, which solves the problem of high temperature loss and wear resistance of sintering machine slideway lubricating grease in the prior art. Bad question

Method used

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  • Sintering machine slideway sealing lubricating grease and preparation method thereof
  • Sintering machine slideway sealing lubricating grease and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Add 61.5 parts of base oil, 13 parts of alkylbenzenesulfonic acid, 13 parts of calcium hydroxide, 3 parts of boric acid, 7 parts of lauryl hydroxystearic acid, 2 parts of phase inversion agent and 10 parts of of water; the base oil has a viscosity of 5.1mm at 100°C 2 / s MVI500; the phase inversion agent is a mixture of methanol and isobutanol, and the mass ratio of methanol and isobutanol is 6:4. Heat up to 50-60°C, stir at high speed with a homogenizer, and react for 1 hour. The temperature was lowered to 46° C., carbon dioxide gas was introduced at a flow rate of 0.2 L / min, and the reaction was carried out for 3 hours. Use a mechanical stirring paddle to stir, slowly raise the temperature to 90°C, and remove the solvent under reduced pressure. Stir and heat up to 160-180°C, refining time is 10 minutes, cool down to 110°C, add 0.5 parts of antioxidant diphenylamine, grind and homogenize through a three-roller mill to obtain complex calcium sulfonate grease, test prod...

Embodiment 2

[0029] Add 51 parts of base oil, 15 parts of alkylbenzenesulfonic acid, 15 parts of calcium hydroxide, 4 parts of boric acid, 12 parts of lauryl hydroxystearic acid, 3 parts of phase inversion agent and 10 parts of of water; the base oil has a viscosity of 10.0mm at 100°C 2 / s polyalphaolefin; wherein the phase inversion agent is a mixture of methanol and ethanol, and the mass ratio of methanol and ethanol is 9:1. Heat up to 50-60°C, stir at high speed with a homogenizer, and react for 1 hour. The temperature was lowered to 46° C., carbon dioxide gas was introduced at a flow rate of 0.2 L / min, and the reaction was carried out for 4 hours. Use a mechanical stirring paddle to stir, slowly raise the temperature to 90°C, and remove the solvent under reduced pressure. Stir and heat up to 160-180°C, refining time is 10 minutes, cool down to 110°C, add 0.7 parts of antioxidant dioctyldiphenylamine, grind and homogenize through a three-roller mill to obtain complex calcium sulfonate...

Embodiment 3

[0031] Add 67 parts of base oil, 10 parts of alkylbenzenesulfonic acid, 13 parts of calcium hydroxide, 2 parts of boric acid, 5 parts of lauryl hydroxystearic acid, 2 parts of phase inversion agent and 10 parts of of water; the base oil has a viscosity of 4.8mm at 100°C 2 / s trihydroxy oleate; wherein the phase inversion agent is a mixture of methanol and isopropanol, and the mass ratio of methanol and isopropanol is 6:4. Heat up to 50-60°C, stir at high speed with a homogenizer, and react for 1 hour. The temperature was lowered to 46° C., carbon dioxide gas was introduced at a flow rate of 0.2 L / min, and the reaction was carried out for 4.5 hours. Use a mechanical stirring paddle to stir, slowly raise the temperature to 90°C, and remove the solvent under reduced pressure. Stir and heat up to 160-180°C, refining time is 10 minutes, cool down to 110°C, add 1 part of antioxidant di-tert-butyl-p-cresol, grind and homogenize through a three-roller mill to obtain complex calcium ...

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Abstract

The invention relates to the technical field of lubricating grease, and concretely relates to a special lubricating grease used for an elastic slideway of a sintering machine and prepared by adoptingcomposite calcium sulfonate as a thickening agent, and a preparation method thereof. The lubricating grease comprises, by weight, 50-70% of base oil, 10-15% of alkyl benzene sulfonic acid, 10-15% of calcium hydroxide, 1-4% of boric acid, 5-12% of dodecahydroxy stearic acid, 1-3% of a phase inversion agent and 0.5-1% of an antioxidant. The lubricating grease has excellent high-temperature resistance, excellent lubricating property and extreme-pressure wear resistance, excellent sealing property, excellent colloid stability and excellent pumpability.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a special lubricating grease for elastic slideways of sintering machines prepared by using composite calcium sulfonate as a thickening agent and a preparation method thereof. [0002] technical background [0003] The sintering plant is the main component of a large-scale steel (iron) plant, which provides sintered materials that meet the requirements for blast furnace smelting, and is an important link in the metal smelting process. The sintering machine is the most important equipment in the sintering process, and the normal operation of the sintering machine is the guarantee of metallurgical production. Usually the operating temperature from the head to the tail of the sintering machine is between 120-200°C, the load on the trolley is 10-20kPa, and the sliding speed of the trolley is between 1.2-4m / min. At present, the common problems in domestic sintering machines ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N30/08C10N30/06C10N40/34C10N40/02C10N40/04
CPCC10M169/00C10M177/00C10M2219/0445C10M2201/062C10M2201/087C10M2207/128C10M2201/02C10M2207/021C10M2215/064C10M2203/1006C10M2205/0206C10M2207/2895C10M2207/026
Inventor 王晓波赵改青孙龙琦赵勤
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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