Repairable lubricating grease and preparation method thereof

A technology of lubricating grease and lubricating grease composition, applied in the field of lubricating grease, can solve the problems of inability to maintain lubrication for a long time, equipment downtime, dryness, etc., and achieve the effects of good degradable performance, repairing wear and promoting biodegradation

Active Publication Date: 2019-10-25
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under some extreme conditions such as high temperature and high pressure, because the oil in the frame escapes too quickly, causing dryness, the lubrication effect cannot be maintained for a long time, and frequent replacement of grease is required, resulting in equipment shutdown and manpower waste

Method used

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  • Repairable lubricating grease and preparation method thereof
  • Repairable lubricating grease and preparation method thereof
  • Repairable lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1: Weigh 100g of dimer acid, 10g of lanthanum oxide, 8g of boric acid, and 5g of phosphoric acid and add them into a stirrer, stir and heat to 120°C, and fully react for 2 hours.

[0031] Step 2: When the temperature is lowered to below 45°C, add 8g of diethylaminoethanol and stir for reaction for 2 hours. After being homogenized by homogenizing equipment, a translucent substance is obtained, which is a grease composition.

[0032] The above-mentioned grease composition can be used as a grease as it is.

[0033] The above grease composition was applied to the TIMKEN experimental machine for repair experiments:

[0034] Add 32# mechanical oil to the oil tank of the TIMKEN experimental machine, install new rollers, turn on the motor switch, add weights continuously, and when the weights are added to 50 pounds, the motor makes a sharp noise. The post has worn about 6.5mm in diameter (longitudinal), and the worn surface is relatively rough. Replace the mechanical oil...

Embodiment 2

[0036] Step 1: Weigh 100g of dimer acid, 8g of cerium oxide, 5g of boric acid, and 3g of phosphoric acid and put them into a stirrer, stir and heat to 100°C, and fully react for 3 hours.

[0037] Step 2: When the temperature is lowered to below 45° C., add 5 g of diethylaminoethanol and stir to react for 1 hour. After being homogenized by homogenizing equipment, a translucent substance is obtained, which is a grease composition.

[0038] Weigh 50g of the above lubricating grease composition, 30g of carnauba wax, 10g of sodium stearyl glutamate, and 10g of jojoba oil, heat it to about 100°C, place it in a homogenization device for homogenization for 1 hour, and it is a kind of Repair grease.

Embodiment 3

[0040] Step 1: Weigh 1000g of dimer acid, 90g of lanthanum oxide, 70g of boric acid, and 40g of phosphoric acid and put them into a stirrer, stir and heat to 110°C, and fully react for 2.5 hours.

[0041] Step 2: When the temperature is lowered to below 45° C., add 60 g of diethylaminoethanol and stir for 1.5 hours. After homogenization treatment by a homogenizer, a translucent substance is obtained, which is a grease composition.

[0042] Weigh 400g of the above lubricating grease composition, 400g of carnauba wax, 100g of sodium stearyl glutamate, 100g of jojoba oil, 5g of antioxidant (Irganox L57) and heat it to about 100°C, place it in a homogenization equipment Treated for 1.5 hours, it is a repairable grease.

[0043] Carry out the roller stability test of the high temperature resistant grease prepared above according to SH / T0122:

[0044] project Before rolling 2 hours after rolling experimental method Dropping point ℃ 202 202 GB / T4929 Pre...

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Abstract

The invention provides a lubricating grease composition. The lubricating grease composition s characterized in that the lubricating grease composition is formed by preparing dimer acid, rare earth oxide, boric acid, phosphoric acid and diethylaminoethanol, and the lubricating grease composition is prepared from the components in parts by weight: 100 parts of the dimer acid, 8-10 parts of the rareearth oxide, 5-8 parts of boric acid, 3-5 parts of phosphoric acid and 5-8 parts of the diethylaminoethanol. The invention further provides repairable lubricating grease. The repairable lubricating grease is prepared from the following components in percentage by weight: 40-50% of a lubricating grease composition, 30-40% of carnauba wax, 10-20 % of sodium stearoyl glutamate and 5-10% of jojoba oil. The lubricating grease composition is a boron-phosphorus-rare earth friction modifier, has the effect of repairing abrasion of the metal surface and has good lubricity, rust resistance and biodegradability; the carnauba wax has a high good melting point, good lubricity and degradability; the sodium stearoyl glutamate is a good organic thickener and surfactant to promote biodegradation of other components; and the jojoba oil is a good degradable lubricant.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a repairable lubricating grease and a preparation method thereof. Background technique [0002] The traditional grease processing technology is: add animal and vegetable oil or fatty acid to inorganic base (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soap as thickener or use organic or Inorganic thickener, which is thickened by adding mineral oil or synthetic oil, is mainly to store mineral oil or synthetic oil in the framework of thickener, and store it in the thickener under the action of motion pressure and temperature. The oil in the chemical agent escapes to act as a lubricant, and exhibits paste-like physical properties under normal temperature and pressure. Under some extreme conditions such as high temperature and high pressure, because the oil in the frame escapes too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/06C10M163/00C10N50/10C10N30/06C10N30/10C10N40/02
CPCC10M141/06C10M163/00C10M2207/22C10M2201/062C10M2201/085C10M2201/087C10M2215/042C10M2205/18C10M2215/08C10M2207/40C10M2203/1006C10M2215/064C10N2030/10C10N2030/06C10N2040/02C10N2050/10C10N2020/081C10N2020/06C10N2010/02
Inventor 张乃庆蒋宁吴启东
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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