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

4 Cites 6 Cited by

AI-Extracted 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 wil...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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.

Application Domain

Additives

Technology Topic

Specific gravityChemistry +12

Image

Examples

Experimental program(4)

Example Embodiment

[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, control the temperature below 35°C, and carry out oil-soluble treatment, that is, add copper powder weight 1.5% dihexadecyl dithiophosphoric acid 3.75g, 2.5% oleic acid 6.25g, 1.0% silicon The oxane coupling agent is 7033B (2.5g) provided by Chengdu Dodgeway Co., Ltd. to carry out organic treatment, add the absolute ethanol volatilized in the operation process to maintain the liquid level, and the aging time is 90 minutes;

[0047] (6), the slurry is vacuum filtered again, and the filter cake is oil-soluble copper powder, which is for subsequent use;

[0048] (7), add 2000ml of synthetic lubricating base oil (polyα-olefin oil) in the reaction tank, then add 245.8 grams of prepared oil-soluble copper powder, disperse evenly with a high-speed mixer (rotating speed 2500rpm) and check the specific gravity of the obtained slurry , adding base oil to adjust the specific gravity to 0.87;

[0049] (8) According to the proportion of 0.8% of the total volume of the slurry, add 16 ml of antioxidant KemallAT-449DX, stir and mature for 30 minutes.

Example Embodiment

[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 temperature below 35°C, and carry out oil-soluble treatment, that is, add 4.5ml of 3% dihexadecyl dithiophosphoric acid, 4.5ml of 3.0% oleic acid, and 1% siloxane 1.5ml of the joint agent is organically treated, and the absolute ethanol volatilized during the supplementary operation is added to maintain the liquid level, and the aging time is 90 minutes;

[0056] (6), the slurry is vacuum filtered again, and the filter cake is oil-soluble copper powder, which is for subsequent use;

[0057] (7) Add 1500ml of synthetic lubricating base oil (polyα-olefin oil) into the reaction tank, then add 145.6 grams of prepared oil-soluble copper powder, disperse evenly with a high-speed mixer (rotating speed 2200~2500rpm) and check the obtained slurry Material specific gravity, adding base oil to adjust the specific gravity to 0.89;

[0058] (8) Add 10 ml of antioxidant JH-9000B produced by Guangdong Jinhao Chemical Co., Ltd. according to the proportion of 1% of the total volume of the slurry, stir and mature for 50 minutes.

Example Embodiment

[0059] Example 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 consumption per 100 kilometers was 9.05, and the fuel saving rate reached 3.3%. Since the center was established, it has tested hundreds of domestic and foreign For energy-saving products and solutions, the fuel-saving rate has never exceeded 2.9%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

Classification and recommendation of technical efficacy words

Increase the compression ratio
Increase power output

Submicron copper-based running-in restorative and application thereof

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Compression device and decompression device

Lossless JSON (JavaScript Object Notation) data compression method

Engine system

Disk drive

Run-length coding and decoding methods and devices

Classification and recommendation of technical efficacy words

Huffman data compression method

Real-time data on-line compression and decompression method

Picture encoding method and image decoding method

Image data processing method of electronic document and device thereof

Production method of 150-400mm thick steel plate for plastic moulds

Data center battery enhancement method and system

Low mass generator wedge and methods of using same

Methods, systems and apparatus for approximation of peak summed fundamental and third harmonic voltages in a multi-phase machine

Photovoltaic-photocatalytic combination system based on lens condensation principle

Low Volumetric Density Betavoltaic Power Device