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Submicron copper-based running-in restorative and application thereof

A technology of submicron copper powder and repairing agent, applied in additives, lubricating compositions, petroleum industry and other directions, can solve the problems of toxic raw materials, engine damage, large self-friction resistance, etc., to improve the running-in quality, increase power output, The effect of reducing frictional resistance

Active Publication Date: 2010-11-17
CHONGQING TAILU TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the nano-scale copper powder is too fine, the self-friction resistance is large after the concentration increases to a certain level, which does not match the roughness of the metal friction surface. The filling and repairing effect is greatly affected by the fine particles, especially the oxidation resistance of nano-copper powder. Not enough, it is easy to oxidize to copper oxide, and it will cause certain damage to the engine if it is used for too long. In addition, pure nano-copper powder is difficult to store due to easy oxidation, the particle is too fine and the yield is low, the production raw material is toxic, and it is difficult to process after reduction. Factors lead to high production costs of nano-copper powder, coupled with low output, unable to meet market demand in large quantities

Method used

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  • Submicron copper-based running-in restorative and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Example 1 Preparation of submicron copper-based run-in repair agent

[0042] (1) Take 250 grams of submicron ultra-fine copper powder, add deionized water to make 2000 ml of slurry according to the concentration of 125g / L, stir and let it stand for 95 seconds by suspension method, take the above slurry and filter it with a 60-mesh copper sieve;

[0043] (2), with vacuum filtration, the soluble salt content wherein is repeatedly washed with deionized water, no white precipitate is separated out to checking with the barium chloride solution of 50g / L, confirms that sulfate ion is no longer contained;

[0044] (3), the filter cake is repeatedly beaten with 2000ml of absolute ethanol and vacuum filtered five times to replace the moisture contained therein so that the moisture content in the filter cake is lower than 1.0%;

[0045] (4), beating with absolute ethanol, configure according to the concentration of 125g / L, the slurry volume is 2000ml;

[0046] (5) Under stirring,...

Embodiment 2

[0050] Example 2 Preparation of copper-based run-in repair agent

[0051] (1) Take 150 grams of copper powder and add deionized water to make a slurry of 1000 ml. After standing for 120 seconds, take the upper slurry, and use the suspension method to separate the copper powder larger than 3 microns with a 60-mesh copper mesh filter;

[0052] (2), adopt vacuum filtration, the soluble salt content wherein is washed with deionized water, no white precipitate is separated out to checking with the barium chloride solution of 50g / L, determine to contain sulfate ion no longer;

[0053] (3), the filter cake is repeatedly vacuum-filtered five times with absolute ethanol 1500ml beating, and the moisture contained therein is replaced, so that the moisture content in the filter cake is lower than 1.0%;

[0054] (4), beating with dehydrated alcohol, make the concentration of copper powder in the slurry be 150g / L; The slurry volume is 1000ml;

[0055] (5), under stirring, control the tempe...

Embodiment 3

[0060] On June 10, 2010, a Santana 3000 produced in 2004 (running 210,000 kilometers, license plate number Yu A Z8785) was sent to the National Motor Vehicle Quality Supervision and Inspection Center (Chongqing) for engine performance testing. First conduct a blank test in accordance with relevant national standards, and the fuel consumption per 100 kilometers is 9.36 liters (Number 93 gasoline). On June 11, a 248ml bottle of the submicron copper-based running-in repair agent of the present invention was directly added to the lubricating oil tank (addition ratio 6.1%), and was directly mixed with the original engine oil that had been running for 2,500 kilometers, and then went directly to the southeast of Chongqing Dianjiang, Pengshui, Youyang and the surrounding areas of Chongqing carry out engine running-in repairs. On June 23, after 2100 kilometers of operation and running-in repair, it was sent to the testing center for testing according to national standards. The fuel con...

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Abstract

The invention provides a submicron copper-based running-in restorative with running-in and restoring functions and reliable effect. The submicron copper-based running-in restorative is prepared by the following steps: taking submicron copper powder as a basic raw material, washing by deionized water, pulping by absolute ethyl alcohol, repeatedly performing vacuum filtration, replacing moisture therein, performing oil solubility treatment, pulping by a base oil (poly-alpha-olefin oils) for synthesizing a lubricant oil after secondary vacuum filtration, adding antioxidant, stirring and curing, wherein the specific gravity range of the slurry is 0.86-0.95, and the addition amount of the antioxidant accounts for 0.5-3.5% of the total volume of the slurry. The restorative in the invention has running-in and restoring functions, reliable effect, extremely strong inoxidizability, has the advantages of nano cooper powder restorative, makes up for the defect of easy oxidation of the nano copper powder, becomes a novel machine running-in restorative, and can be applicable to the machine running-in field, especially for engines of automobiles, steamships, motorbikes and the like. The restorative in the invention adopts the lubricant oil as a dilute dispersion medium, has double functions of running-in and restoring, lowers energy consumption, reducing emission and prolongs service life of engines.

Description

technical field [0001] The present invention relates to a mechanical run-in repair agent, in particular to a submicron copper-based run-in repair agent, and the invention also relates to the application of the submicron copper-based run-in repair agent in mechanical run-in repair, especially in engine run-in repair application. Background technique [0002] According to statistics, at present, the energy consumed by the friction between the engine and the mechanical operation accounts for about 50% of the world's primary petrochemical energy consumption. Solving the unnecessary consumption of energy caused by friction from the perspective of materials and technologies has become an important factor in energy conservation, emission reduction and the development of a low-carbon economy. focus of research. [0003] Lubricating oil is the best anti-friction and lubricating material that can be accepted by the market and customers so far, but lubricating oil can only reduce and ...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10N40/25C10N30/10C10N30/06
Inventor 吉维群
Owner CHONGQING TAILU TECH DEV
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