CN110272778A - A kind of nano metal self-repair material and preparation method thereof - Google Patents
A kind of nano metal self-repair material and preparation method thereof Download PDFInfo
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- CN110272778A CN110272778A CN201910435216.3A CN201910435216A CN110272778A CN 110272778 A CN110272778 A CN 110272778A CN 201910435216 A CN201910435216 A CN 201910435216A CN 110272778 A CN110272778 A CN 110272778A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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- C10M2201/05—Metals; Alloys
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
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Abstract
The invention discloses a kind of nano metal self-repair material and preparation method thereof, the component including following mass fraction: nano-hydroxy silicate powder 2%~7%；Nano composite oxides metal powder 1.5%~3%；Nano composite powder 11%~15%；Dispersing agent 1%~7%；Decentralized medium 70%~80%.Nano metal self-repair material of the invention; it can be repaired according to different abrasion conditions using different granularity and concentration; the stabilized protection course of high rigidity, low-friction coefficient and superior alloy steel elasticity modulus can be formed on engine cylinder body surface; protective layer after reparation have the characteristics that hardness it is high, it is not easy to wear, do not fall off; the service life of mechanical equipment can be increased substantially; cylinder pressure of engines is significantly raised, and exhaust pollutant discharge amount reduces, and average fuel consumption reduces.
Description
Technical field
The present invention relates to the processing methods of the reinforcing of machine components friction surface and abrasion selfreparing, in particular to a kind of to exist
Metal friction and wear surface generate nano metal self-repair material of protective layer and preparation method thereof and its in differentiated friction
In the case of application method.
Background technique
Abrasion is the one of the major reasons for causing metal material and mechanical equipment to destroy and fail.In order to reduce or inhibit material
The fretting wear of material and equipment, it is necessary to take the measure of various antifriction antiwears, usually be realized by following approach: first is that passing through table
Surface treatment technology, raising are the wear-resisting properties of metal material rubbing surface, such as: it is the heat treatment technics such as surface sulfurizing or carburizing, thin
Film deposition technique etc.；Second is that the part of abrasion is carried out surface regeneration, such as thermal spraying reparation；Third is that by addition lubricating oil,
So that forming oil film between rubbing surface, to reduce the friction between rubbing surface, and wear rate is reduced；Fourth is that being to carry with lubricant
Material (such as boron nitride) containing repair is sent into abration position, repairs wear surface by body.
First and second kind of method in the above method there are complex process, preparation time is long, at high cost the disadvantages of；The third
Method is common method in existing machinery equipment, but lubricating oil film is easily destroyed at work, and various in mechanical equipment have
Machine or inorganic compound can be generated when oil temperature is higher disappears to the substance of metal material corrosiveness or lubricating oil itself decomposition
Consumption, and generate certain chemical contamination；Fourth method is the research hotspot in current wear-resistant reparation field, but its reparation for generating
The structure and unstable mechanical property of layer, repairing effect are unpredictable.
Summary of the invention
The present invention be directed to complex process existing for existing abrasion reparation field, preparation time is long, at high cost, lubricating oil film
The problems such as unstable and repair layer structure and unstable mechanical property, provides one kind and receives so that natural crystal is as main component
Rice metal self-repair material and preparation method thereof, the material preparation method is simple, can be formed on engine cylinder body surface high hard
The stabilized protection course of degree, low-friction coefficient, can extend the service life of equipment.
Technical scheme is as follows:
A kind of nano metal self-repair material of the invention, which is characterized in that the component including following mass fraction:
Nano-hydroxy silicate powder 2%~7%；
Nano composite oxides metal powder 1.5%~3%；
Nano composite powder 11%~15%；
Dispersing agent 1%~7%；
Decentralized medium 70%~80%；
The nano-hydroxy silicate powder be chlorite, serpentine, talcum, schallerite one of mineral dust or
A variety of mixtures, main chemical compositions are as follows: Mg6(Si4O10)(OH)8；The nano composite oxides metal powder is nano oxygen
Change nickel, nano tin dioxide, any two or three of mixture in nano zine oxide, average particle size is less than 100 nanometers；Institute
The nano composite powder stated is nanoscale nickel powder, glass putty, any two or three of mixture in copper powder, average
Granularity is less than 100 nanometers；
The dispersing agent is dodecyl sodium sulfonate calcium, potassium oleate, lithium 12-hydroxy stearate, alkyl phenol polyoxyethylene ether, gathers
One of ethylene glycol etc. or a variety of mixtures；The decentralized medium is basic lubricating oil 500SN.
Nano metal self-repair material of the invention can be set for the machinery of the different degrees of wear and different wear areas
Standby and engine cylinder body selects various concentration or varigrained repair materials, wherein the nano-hydroxy silicate powder
It is 2.5%~10% in the concentration of the decentralized medium.
A second object of the present invention is to provide the preparation methods of nano metal self-repair material of the present invention, special
Sign is, comprising the following steps:
(1) the hydroxy silicate powder by average particle size less than 10 microns and nano composite oxides metal powder and nano combined gold
Belong to powder to mix in proportion, is re-fed into and continues to be milled into 100~1000 nanometers of average particle size of metal material feed powder in ball mill
Last I；
(2) metal material powder I is mixed in proportion with dispersing agent and decentralized medium, and is stirred evenly using High shear device,
Obtain mixtures II；
(3) mixtures II is heated to 200~230 DEG C, heated while stirring, until dispersing agent all dissolves；Cooling is until room
Nano metal self-repair material of the invention can be obtained in temperature.
Further, the hydroxy silicate powder is by hydroxy silicate ore through coarse crushing, air-flow crushing, ball
The hydroxy silicate powder of the process average particle size obtained less than 10 microns such as mill, screening.
Further, according to specifically used mechanical equipment or the engine cylinder body degree of wear, the ball mill can
To select ball milling 18~24 hours under the different rotating speeds of 300~800 r/min, 100~1000 nanometers of average particle size is made
Metal material powder II.
Nano metal self-repair material of the invention, can be according to different abrasion conditions using different granularity and dense
Degree is repaired, and can form the steady of high rigidity, low-friction coefficient and superior alloy steel elasticity modulus on engine cylinder body surface
Determine protective layer, the protective layer after reparation have the characteristics that hardness it is high, it is not easy to wear, do not fall off, machinery can be increased substantially and set
Standby service life, cylinder pressure of engines is significantly raised, and exhaust pollutant discharge amount reduces, and average fuel consumption reduces.
Detailed description of the invention
Fig. 1 is the situation that engine cylinder body is added before nano metal repair materials；
Fig. 2 is the situation that engine cylinder body is added after nano metal repair materials.
Specific embodiment
6 embodiments and using effect is set forth below, the present invention is further illustrated.The present embodiment not limits this
The scope of patent protection of invention, it is all direct or indirect with description of the invention, in other related technical areas, similarly
Including within the scope of the present invention.
Embodiment 1
A kind of nano metal self-repair material, the component including following mass fraction:
Chlorite, serpentine and schallerite mixed-powder 3.5
Nano-nickel oxide, nano zine oxide and nano tin dioxide mixed-powder 2
The composite metal powder 13.5 of Nanometer Copper and nanometer tin
Lithium 12-hydroxy stearate and polyethylene glycol mixture 6
Lubricating base oils 500SN 75；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) by proportioned powder II after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder
The body degree of wear selects revolving speed ball milling 20 hours of 400 r/min, and the metal selfreparing material of 600 nanometers of average particle size is made
Feed powder end III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating base oils
It is 4.7%, and is stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
To three groups of passenger vehicles, (A group is to have travelled 20w kilometers or so, and B group is to have travelled 30w kilometers or more, and C group is
10W kilometers of traveling or less) cylinder pressure of engines test experiments are carried out, 4.7% nano metal self-repair material is separately added into existing
It in three groups of vehicles, is compared after 1000 kilometers of vehicle driving, as the result is shown: filling nano metal self-repair material travels 1000 kilometers
Afterwards, cylinder pressure of engines obviously rises.A group averagely promotes 38%, and highest promotes 58%；B group averagely promotes 6%, and highest promotes 11%；C
Group averagely promotes 5%, and highest promotes 10%.
Embodiment 2
A kind of nano metal self-repair material, the component including following mass fraction:
Talcum, serpentine and schallerite mixed-powder 6
Nano-nickel oxide and nano tin dioxide mixed-powder 2
The composite metal powder 12 of Nanometer Copper and nanometer tin
Lithium 12-hydroxy stearate and polyethylene glycol mixture 5
Lubricating base oils 500SN 75；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) by proportioned powder II after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder
The body degree of wear selects revolving speed ball milling 18 hours of 400 r/min, and the metal selfreparing material of 800 nanometers of average particle size is made
Feed powder end III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating base oils
It is 8%, and is stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
To three groups of passenger vehicles, (A group is to have travelled 20w kilometers or so, and B group is to have travelled 30w kilometers or more, and C group is
10W kilometers of traveling or less) cylinder pressure of engines test experiments are carried out, 8% nano metal self-repair material is separately added into existing three
It in group vehicle, is compared after 1000 kilometers of vehicle driving, as the result is shown: filling nano metal self-repair material travels 1000 kilometers
Afterwards, cylinder pressure of engines obviously rises.A group averagely promotes 16%, and highest promotes 27%；B group averagely promotes 28%, and highest promotes 35%；C
Group averagely promotes 4%, and highest promotes 8%.
Embodiment 3
A kind of nano metal self-repair material, the component including following mass fraction:
Chlorite and schallerite mixed-powder 4
Nano-nickel oxide and nano zine oxide mixed-powder 1.5
The composite metal powder 11 of Nanometer Copper and nano nickel
Dodecyl sodium sulfonate calcium and alkyl phenol polyoxyethylene ether mixture 3.5
Lubricating base oils 500SN 80；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) by proportioned powder II after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder
The body degree of wear selects revolving speed ball milling 22 hours of 500 r/min, and the metal selfreparing material of 200 nanometers of average particle size is made
Feed powder end III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating base oils
It is 5%, and is stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
To three groups of passenger vehicles, (A group is to have travelled 20w kilometers or so, and B group is to have travelled 30w kilometers or more, and C group is
10W kilometers of traveling or less) cylinder pressure of engines test experiments are carried out, 5% nano metal self-repair material is separately added into existing three
It in group vehicle, is compared after 1000 kilometers of vehicle driving, as the result is shown: filling nano metal self-repair material travels 1000 kilometers
Afterwards, cylinder pressure of engines obviously rises.A group averagely promotes 11%, and highest promotes 15%；B group averagely promotes 6%, and highest promotes 11%；C
Group averagely promotes 31%, and highest promotes 39%.
Embodiment 4
A kind of nano metal self-repair material, the component including following mass fraction:
Chlorite, serpentine and schallerite mixed-powder 6
Nano-nickel oxide and nano tin dioxide mixed-powder 2
The composite metal powder 12 of Nanometer Copper, nanometer tin and nano nickel
Lithium 12-hydroxy stearate, potassium oleate and polyethylene glycol mixture 5
Lubricating base oils 500SN 75；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) powder II will have been matched after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder body
The degree of wear selects revolving speed ball milling 18 hours of 400 r/min, and the metal self-repair material of 800 nanometers of average particle size is made
Powder III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating base oils
It is 8%, and is stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
Cylinder pressure of engines test experiments are carried out to vehicle (traveling milimeter number are as follows: 971031 kilometers), by average particle size 800
Nanometer, the nano metal self-repair material that concentration is 8% are added in vehicle, compare after 1000 kilometers of vehicle driving, as the result is shown:
After filling 1000 kilometers of nano metal self-repair material traveling, cylinder pressure of engines averagely rises 35%, and highest improves 124%.Start
Front and back comparison diagram is added in machine, as shown in Figure 1.
Embodiment 5
A kind of nano metal self-repair material, the component including following mass fraction:
Chlorite, serpentine and talcum mixed-powder 2
Nano-nickel oxide, nano zine oxide and nano tin dioxide mixed-powder 3
The composite metal powder 15 of Nanometer Copper and nanometer tin
Lithium 12-hydroxy stearate 7
Lubricating base oils 500SN 73；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) by proportioned powder II after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder
The body degree of wear selects revolving speed ball milling 22 hours of 500 r/min, and the metal selfreparing material of 200 nanometers of average particle size is made
Feed powder end III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating base oils
It is 2.74%, and is stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
Cylinder pressure of engines test experiments are carried out to vehicle (traveling milimeter number are as follows: 48991 kilometers), by average particle size 200
Nanometer, the nano metal self-repair material that concentration is 2.74% are added in vehicle, compare after 1000 kilometers of vehicle driving, as a result show
Show:
(1) after filling nano metal self-repair material travels 1000 kilometers, cylinder pressure of engines averagely rises 3%, and highest improves 6%；
(2) it after filling nano metal self-repair material travels 1000 kilometers, is compared when driving with not filling, CO reduces by 33%, HC+
NOx reduction 15%.
Embodiment 6
A kind of nano metal self-repair material, the component including following mass fraction:
Chlorite, serpentine and schallerite mixed-powder 7
Nano-nickel oxide and nano tin dioxide mixed-powder 3
The composite metal powder 13 of Nanometer Copper and nanometer tin
Lithium 12-hydroxy stearate and alkyl phenol polyoxyethylene ether mixture 7
Lubricating base oils 500SN 70；
1) hydroxy silicate ore is obtained to powder average particle size after coarse crushing, air-flow crushing, ball milling, screening less than 10 microns
Hydroxy silicate powder, obtain powder I；
2) hydroxy silicate powder is separately added into nano composite oxides metal powder, nano composite powder according to aforementioned proportion
End obtains powder II；
3) powder II will have been matched after planetary ball mill mixes, according to specifically used mechanical equipment or engine cylinder body
The degree of wear selects revolving speed ball milling 22 hours of 500 r/min, and the metal self-repair material of 500 nanometers of average particle size is made
Powder III；
4) according to specifically used mechanical equipment or engine cylinder body wear area, by the above-mentioned nano-hydroxy silicic acid prepared
Salt powder III, dispersing agent and decentralized medium mix in proportion, wherein concentration of the hydroxy silicate powder in lubricating oil is
10%, and stirred evenly using High shear device；
5) the above-mentioned mixed liquor stirred evenly is heated to 220 DEG C using heating equipment, heated while stirring, until dispersing agent is complete
Portion's dissolution；Cooling is until room temperature.
Average fuel consumption experiment is carried out to vehicle (traveling milimeter number are as follows: 4835 kilometers), by 200 nanometers of average particle size, dense
Degree is added in vehicle for 10% nano metal self-repair material, compares after 100 kilometers of vehicle driving, as the result is shown: filling nanometer
Average fuel consumption is 10.8L/100 kilometers before metal self-repair material, after filling nano metal self-repair material travels 100 kilometers,
Measuring average fuel consumption is 9.3L/ kilometers, and average fuel consumption reduces 16%.
By embodiment as it can be seen that use 800 nanometers of average particle size of the invention, concentration for 8% nano metal self-repair material
The abrasion of the high degree of wear can effectively be coped with；And the abrasion for low degree, then use 200 nanometers of average particle size, concentration
For 2.74% nano metal self-repair material.
Claims (7)
1. a kind of nano metal self-repair material, which is characterized in that the component including following mass fraction:
Nano-hydroxy silicate powder 2%~7%；
Nano composite oxides metal powder 1.5%~3%；
Nano composite powder 11%~15%；
Dispersing agent 1%~7%；
Decentralized medium 70%~80%.
2. nano metal self-repair material according to claim 1, which is characterized in that the nano-hydroxy silicate powder
End is one of mineral dust of chlorite, serpentine, talcum, schallerite or a variety of mixtures, main chemical compositions
Are as follows: Mg6(Si4O10)(OH)8；The nano composite oxides metal powder is nano-nickel oxide, nano tin dioxide, nano oxidized
Any two or three of mixture in zinc, average particle size is less than 100 nanometers；The nano composite powder is to receive
The nickel powder of meter level, glass putty, any two or three of mixture in copper powder, average particle size is less than 100 nanometers.
3. nano metal self-repair material according to claim 1, which is characterized in that the dispersing agent is dodecyl
One of sulfoacid calcium, potassium oleate, lithium 12-hydroxy stearate, alkyl phenol polyoxyethylene ether, polyethylene glycol etc. or a variety of mixing
Object；The decentralized medium is basic lubricating oil 500SN.
4. nano metal self-repair material according to claim 1, which is characterized in that the nano-hydroxy silicate powder
End is 2.5%~10% in the concentration of the decentralized medium.
5. a kind of preparation method of nano metal self-repair material as described in claim 1, which is characterized in that including following step
It is rapid:
(1) the hydroxy silicate powder by average particle size less than 10 microns and nano composite oxides metal powder and nano combined gold
Belong to powder to mix in proportion, is re-fed into and continues to be milled into 100~1000 nanometers of average particle size of metal material feed powder in ball mill
Last I；
(2) metal material powder I is mixed in proportion with dispersing agent and decentralized medium, and is stirred evenly using High shear device,
Obtain mixtures II；
(3) mixtures II is heated to 200~230 DEG C, heated while stirring, until dispersing agent all dissolves；Cooling is until room
Nano metal self-repair material of the invention can be obtained in temperature.
6. preparation method according to claim 5, which is characterized in that the hydroxy silicate powder is by hydroxyl silicic acid
Hydroxyl silicon of the salt ore through the process such as coarse crushing, air-flow crushing, ball milling, screening average particle size obtained less than 10 microns
Hydrochlorate powder.
7. preparation method according to claim 5, which is characterized in that the ball mill can choose 300~800
The metal material powder II of 100~1000 nanometers of average particle size is made in ball milling 18~24 hours under the different rotating speeds of r/min.
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