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Graphene extreme pressure antiwear agent

A technology of extreme pressure anti-wear agent and graphene powder, applied in the directions of additives, petroleum industry, lubricating compositions, etc., can solve problems such as friction pair wear, and achieve the effects of increasing sintering load, being environmentally friendly, and improving stability

Active Publication Date: 2022-06-10
上海新能量纳米科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the graphene is not well dispersed, it will gradually agglomerate into extremely high-strength particles, and when it reaches a certain scale, it will form an abrasive effect, which will cause wear to the friction pair.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0057] Example 1: A Taiwan-funded enterprise in Kunshan, Jiangsu, produces riveting machines that are exported to many countries. There is a transmission bearing in the equipment that completes the continuous beating action, and it needs to be under harsh working conditions of more than two tons of impact force and high temperature of 300 ° C for a long time. At a very small cost, a very significant effect is obtained.

[0058] Example 2: Guangxi Liugong is a large construction machinery manufacturing enterprise. It is a long-term problem in the industry to solve the wear and harsh noise of key components under the harsh working conditions and extreme lubrication conditions of bulldozers and loaders. The friction characteristics are significantly improved.

example 3

[0059] Example 3: Shanghai Yongjin Bearing Company specializes in the production of high-speed precision bearings, of which the dental drill bearing reaches 400,000 revolutions per minute. High-speed wear occurs, and each time the dental drill is used, high-temperature steam sterilization is performed, which also causes lubricant loss. In order to solve this problem, the company decided to use the new material of graphene extreme pressure anti-wear agent. First, in the process of bearing production, the new material was used for surface modification treatment, and at the same time, graphene was added to the original German Krupp grease. Extreme pressure antiwear agent. The two-pronged process prolongs the life of dental drill bearings by more than 6 times and reduces noise. Get customer praise.

[0060] Example 4: Nowadays, large-scale construction machinery such as excavators and loaders are often leased for use. Especially in open-pit coal mines, the lease fee is often cal...

example 5

[0061] Example 5: In the 1.2 million-ton coal preparation plant of Erdos Shenzhou Coal Mine, the conveyor belt bearing (diameter 30 cm), roller screen bearing and scraper bearing are used, and the anti-wear and self-repairing effect is very obvious.

[0062] One of the screening machine bearings (30 cm in diameter) cannot be used due to severe heat and redness caused by wear, but it will be very troublesome to remove and replace. The manufacturer tried to replace the bearing without replacing the bearing. Solved the problem normally.

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Abstract

The invention relates to a graphene extreme pressure anti-wear agent, which is composed of graphene powder accounting for 0.1-2% of the total weight of the extreme-pressure anti-wear agent, 0.5-1% of a dispersant and 96-98% of the conditioner , the extreme pressure antiwear agent is prepared by fully mixing the amount of graphene powder, dispersant and conditioning agent. Compared with the prior art, the present invention greatly improves the sintering load of the extreme pressure antiwear agent , the present invention fully blends the nano-conditioning agent in particle form with graphene in sheet structure, effectively mediates the agglomeration caused by graphene sheet structure, improves the stability of the product, and does not contain lead and mercury in its composition , molybdenum, Teflon and other reinforcements are environmentally friendly and non-polluting.

Description

technical field [0001] The invention relates to a lubricating composition characterized by adding graphene, in particular to a graphene extreme pressure antiwear agent. Background technique [0002] Graphene is a two-dimensional crystal with only one atomic thickness, which is exfoliated from graphite materials and composed of carbon atoms. It is currently the thinnest and strongest material in nature. Its breaking strength is 200 times higher than that of the best steel. At the same time, it has good elasticity and can stretch up to 20% of its own size. However, graphene is difficult to produce a certain product as a single raw material, and it is mainly used to composite with other material systems by using its outstanding properties to obtain new composite materials with excellent properties. [0003] Graphene is formed by single or close stacking, two-dimensional materials with no more than ten layers and their derivatives are called graphene materials, and those with m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M167/00C10N30/06C10N30/08
Inventor 齐同赓肖京平齐骋远
Owner 上海新能量纳米科技股份有限公司
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