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Low-noise and long-service-life composite barium-based lubricating grease and preparation method thereof

A lubricating grease and long-life technology, which is applied in the field of low-noise and long-life compound barium-based grease and its preparation, can solve the problems of difficulty in meeting high requirements for noise and life, and achieve low-noise, long-life, and clean grease Delicate, low-decibel effect

Inactive Publication Date: 2020-01-10
LONGNAN COUNTY XUEFUTE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a low-noise and long-life composite barium-based grease and its preparation method, which aims to solve the problem of high requirements for noise and life in the current composite barium-based grease. technical problems; the grease ensures the stability of the compound barium-based grease on the basis of components, and improves the product performance of the compound barium-based grease to a certain extent. The oil soap structure and fiber structure between them have been optimized to the greatest extent, which finally ensures the low noise and long life of the complex barium-based grease

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment is to prepare composite barium-based grease, and the specific steps are:

[0025] Step 1: Add 30kg of base oil mineral oil and 17kg of polyol ester to the reactor, then add 15kg of 12 hydroxystearic acid, 5kg of sebacic acid, and 25kg of barium hydroxide, and mix the materials evenly. heating;

[0026] Step 2. When the temperature of the material in the reaction kettle rises to 160-170°C, add 2kg of antioxidant and 3kg of extreme pressure anti-wear agent into the reaction kettle, and then continue to heat the material to rapidly heat the material to 190-190- 200°C, then stop heating, and use normal temperature heat transfer oil to quickly cool the reactor and its internal materials to 160-170°C;

[0027] Step 3: Continue to heat the material to rapidly raise the temperature of the material to 190-200°C again, then stop heating, and pump the material in the reaction kettle to the blending kettle;

[0028] Step 4. The blending kettle cools the material t...

Embodiment 2

[0030] This embodiment is to prepare composite barium-based grease, and the specific steps are:

[0031] Step 1. Add 43kg of base oil PAO and 16.5kg of polyol ester to the reactor, then drop into 12kg of 12-hydroxystearic acid, 3.5kg of sebacic acid, and 19.5kg of barium hydroxide. The material is heated;

[0032] Step 2. When the temperature of the material in the reactor is raised to 160-170°C, add 1.5kg of antioxidant and 1.9kg of extreme pressure anti-wear agent to the reactor, and then continue to heat the material so that the temperature of the material is rapidly raised to 190-200°C, then stop heating, and use normal temperature heat transfer oil to quickly cool down the reactor and its internal materials to 160-170°C;

[0033] Step 3: Continue to heat the material to rapidly raise the temperature of the material to 190-200°C again, then stop heating, and pump the material in the reaction kettle to the blending kettle;

[0034]Step 4. The blending kettle cools the mat...

Embodiment 3

[0036] This embodiment is to prepare composite barium-based grease, and the specific steps are:

[0037] Step 1: Add 50kg of base oil ester oil and 21kg of polyol ester to the reaction kettle, then add 5kg of 12 hydroxystearic acid, 1kg of sebacic acid, and 21.9kg of barium hydroxide, mix well The material is heated;

[0038] Step 2. When the temperature of the material in the reactor rises to 160-170°C, add 0.5kg of antioxidant and 0.1kg of extreme pressure anti-wear agent to the reactor, and then continue to heat the material to rapidly heat the material to 190-200°C, then stop heating, and use normal temperature heat transfer oil to quickly cool down the reactor and its internal materials to 160-170°C;

[0039] Step 3: Continue to heat the material to rapidly raise the temperature of the material to 190-200°C again, then stop heating, and pump the material in the reaction kettle to the blending kettle;

[0040] Step 4. The blending kettle cools the material through water ...

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Abstract

The invention discloses a low-noise and long-service-life composite barium-based lubricating grease and a preparation method thereof. The lubricating grease aims to solve the technical problem that the noise and the service life of existing composite barium-based lubricating grease are difficult to meet high requirements. The lubricating grease comprises, by mass, 30-50 % of PAO, mineral oil or ester oil, 10-21 % of polyol ester, 5-15 % of 12-hydroxystearic acid, 1-5 % of sebacic acid, 10-25 % of barium hydroxide, 0.5-2 % of an antioxidant, 0.5-3 % of an antirust agent and 0.1-3 % of an extreme pressure anti-wear agent. The stability of the composite barium-based lubricating grease is ensured on the basis of components, the product performances of the composite barium-based lubricating grease are improved to a certain extent, and the unique preparation method is combined to maximally optimize the oil soap structure and the fiber structure among the components in the lubricating grease,so the low noise and long service life of the composite barium-based lubricating grease are finally ensured.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease manufacture, in particular to a low-noise and long-life composite barium-based lubricating grease and a preparation method thereof. Background technique [0002] Grease is a thick grease-like semi-solid, which is used in mechanical friction parts for lubrication and sealing, and also for metal surfaces to fill gaps and prevent rust. It is mainly made of mineral oil (or synthetic lubricating oil) and thickener. At present, most of the grease is used for lubrication, called anti-friction grease. Anti-friction grease mainly reduces mechanical friction and prevents mechanical wear At the same time, it also plays a protective role against metal corrosion, and a sealing and dustproof function. [0003] Lubricating grease is mainly composed of thickener, base oil and additives. Generally, the content of thickener in grease is about 10%-20%, the content of base oil is about 75%-90%, and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M177/00C10N30/06C10N40/02C10N50/10
CPCC10M169/00C10M177/00C10M2203/1006C10M2205/0285C10M2207/1276C10M2207/1285C10M2207/2835
Inventor 王宇远黄志良
Owner LONGNAN COUNTY XUEFUTE NEW MATERIAL TECH
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