CN110029387A - A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene and preparation method thereof - Google Patents
A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene and preparation method thereof Download PDFInfo
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- CN110029387A CN110029387A CN201910257171.5A CN201910257171A CN110029387A CN 110029387 A CN110029387 A CN 110029387A CN 201910257171 A CN201910257171 A CN 201910257171A CN 110029387 A CN110029387 A CN 110029387A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
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Abstract
A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene and preparation method thereof, the sample for being derived from aluminium drill pipe is put into after impregnating in derusting degreasing fluid, takes out sample, and clean drying surface；In the differential arc oxidation liquid that graphene dispersing solution is poured into, 5~8min is then stirred using agitator air, obtains graphene differential arc oxidation liquid；Aluminium drill pipe sample after oil removing is put into after carrying out differential arc oxidation in the graphene differential arc oxidation liquid that temperature is 20~40 DEG C and is taken out；It by the sample clean after differential arc oxidation, then dries, obtains the aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.A kind of aluminium drill pipe of the invention improves the growth rate and uniformity of coating after adding graphene with the modified differential arc oxidation coating of wear-resisting graphene, reduces the coefficient of friction of coating, and coating wear resistance improves 50% or more.
Description
Technical field
The invention belongs to drilling project technical fields, and in particular to a kind of aluminium drill pipe modified differential of the arc of wear-resisting graphene
Oxide covering and preparation method thereof.
Background technique
With the exploration and development of Deep Oil And Gas Exploration resource, the complexity work such as ultradeep well, horizontal well, high temperature and pressure high corrosion medium well
The quantity of condition environment exploration and development well quicklys increase, and thus constantly proposes higher to exploration and development equipment, especially drilling rod
It is required that.In deep-well, ultradeep well drilling process, aluminium drill pipe is light-weight because its density is low, and specific strength is high, impact resistance
By force, the advantages such as insensitive to H 2 S stress corrosion are widely used.However, that there are hardness is low for aluminium drill pipe, it is easy to wear etc.
Disadvantage is easy to generate the failure modes such as scratch and polishing scratch in use, greatly reduces the physical life of drilling rod.
Differential arc oxidization technique (MAO) is also known as micro-plasma oxidation technology, is that one kind on light-alloy surface passes through plasma
Body electric discharge carries out the new technology of complicated electrochemistry and plasmochemical process growth in situ oxide ceramics film layer.Utilize this
The binding force of film layer and matrix that item technology is formed is relatively strong, hardness is high, and wearability is good, but the property under deep-well, ultra-deep well environment
Can be strong not enough, peeling or worn out may occur faster.
Patent 2012103756558 discloses a kind of method of micro-arc oxidation of aluminum alloy surface film functionalized design.The party
Method realizes aluminum alloy differential arc oxidation film for practical situations by specific external electrical parameters and mating optimization electrolyte
Superpower corrosion resistance, excellent wearability, the performances such as superhard and good finish.It is pretty good that this method can prepare a performance
Differential arc oxidation layer, but aluminium drill pipe rigorous service condition, differential arc oxidation layer may will soon peel off.
106048687 A of patent CN discloses a kind of wear-resisting and anticorodal aluminium alloy drilling rod surface peening layer preparation side
Method.It is then generated in ultrasonic Cold forging using ultrasonic Cold forging emerging in recent years as pretreatment in this method
Differential arc oxidization technique is used on plastic deformation layer with a large amount of distortions of lattice and dislocation, re-forms a compact structure ceramic membrane
Layer.Hard plastic deformation layer prepared by this method, crystallite dimension and hardness change in gradient, make to have between differential arc oxidation layer
Good binding force, but also differential arc oxidation layer is finer and close, wear-resisting and corrosion resistance is greatly improved.But aluminium drill pipe works
Condition is harsh, and differential arc oxidation layer prepared by this method may be larger because of coefficient of friction, is easy to happen breakage.It thus needs to seek
The method for reducing the coefficient of friction of film layer and improving film layer compactness, makes differential arc oxidation layer be not easy to peel off, to improve aluminium alloy brill
The service life of bar.
Graphene from 2004 by since successfully preparing, because having excellent mechanics, calorifics, electricity and self-lubricating property standby
Favored, is to prepare ideal one of the reinforcement of composite material/coating.However, graphene and metal/inorganic non-metallic base
Wetability and dispersibility between body material is poor, and it is difficult to cause addition of the graphene into matrix.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of wear-resisting graphenes of aluminium drill pipe to be modified
Differential arc oxidation coating and preparation method thereof, compared with the differential arc oxidation coating for being not added with graphene, the modified differential arc oxidation of graphene
The deposition rate and uniformity of coating preparation process floating coat improve, and coefficient of friction significantly reduces, wearability improve 50% with
On.
To achieve the above object, the present invention is to be achieved through the following technical solutions:
A kind of preparation method of the aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene, comprising the following steps:
Step 1: the sample for being derived from aluminium drill pipe being put into after being impregnated in derusting degreasing fluid, take out sample, and clean and blow
Dry surface；
Step 2: in the differential arc oxidation liquid that graphene dispersing solution is poured into, 5~8min is then stirred using agitator air,
Obtain graphene differential arc oxidation liquid；Wherein, the graphene dispersing solution additional amount in every 1L differential arc oxidation liquid is 1~12g；
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 20~40 DEG C
It is taken out after carrying out differential arc oxidation, obtains the aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
A further improvement of the present invention lies in that anti-rusting liquid for removing oil is the potassium hydroxide solution of mass concentration 5% in step 1.
A further improvement of the present invention lies in that the time of immersion is 10~15min in step 1.
A further improvement of the present invention lies in that differential arc oxidation liquid is made by following procedure: by sodium metasilicate, six in step 2
Sodium metaphosphate, alkali and complexing agent are add to deionized water, and are uniformly mixed, are obtained differential arc oxidation liquid；Wherein, sodium silicate silicate
For 0.5~8g/L, the concentration of calgon is 15~35g/L, and the concentration of alkali is 0.1~1g/L, and the concentration of complexing agent is 0.1
~1.5g/L.
A further improvement of the present invention lies in that graphene dispersing solution by following procedure be made: by specific surface area be 170~
240m2The graphene of/g is added in the lye that concentration is 0.3g/L, Centrifugal dispersion, and filtering obtains prefabricated graphene dispersing solution；
Complexing agent is added in prefabricated graphene dispersing solution, ultrasonic disperse obtains graphene dispersing solution；Wherein, graphene and lye
Than for 100g:1L, the ratio of complexing agent and prefabricated graphene dispersing solution is 0.02g:1L.
A further improvement of the present invention lies in that alkali is one or both of potassium hydroxide, sodium hydroxide；Complexing agent is lemon
Lemon acid sodium.
A further improvement of the present invention lies in that the revolving speed of Centrifugal dispersion be 7000~8000 revs/min, the time be 5~
10min；The power of ultrasonic disperse is 250~350W, and the time of ultrasonic disperse is 5~10min.
A further improvement of the present invention lies in that the stirring in step 2 is stirred using compressed air, every liter of graphene differential of the arc oxygen
The aeration quantity for changing liquid is 30~40L/h.
A further improvement of the present invention lies in that in step 3, the actual conditions of differential arc oxidation are as follows: use constant current mode, electric current
It is stirred for 1.5~2.5A, 400~700Hz of frequency using compressed air, the aeration quantity of every liter of graphene differential arc oxidation liquid is 15
~20L/h, differential arc oxidation time are 5~40min；In step 3, drying specifically: by 50~80 DEG C of hot-air seasonings 3~
5min。
A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
A kind of aluminium drill pipe of the invention modified differential arc oxidation coating of wear-resisting graphene, has the advantages that
(1) a kind of aluminium drill pipe prepared in the present invention the modified differential arc oxidation coating of wear-resisting graphene, passes through introducing
Graphene increases the conductive channel of differential arc oxidation coating, and differential arc oxidation coating is made to be easier to puncture, and microcell arc light occurs and puts
Electricity improves the growth rate and uniformity of film layer.
(2) the modified differential arc oxidation coating of graphene of the invention rubs compared with the differential arc oxidation coating for being not added with graphene
It wipes coefficient to be substantially reduced, wearability improves 50% or more.
It (3), only need to be according to 0.25~0.5g/dm when coating of the invention preparation2Graphene dispersing solution consumption, mend
Graphene dispersing solution is filled, the recycling of differential arc oxidation liquid can be realized, the raw material effectively reduced in coat preparing technology disappears
Consumption.
(4) present invention uses graphene dispersing solution, and nanoscale graphene is cleverly distributed to matched differential arc oxidation
In electrolyte, in conjunction with specific external electrical parameters, it can prepare that coefficient of friction is small, wearability is good, the good graphene of binding force changes
Property differential arc oxidation film layer.And because a small amount of graphene of graphene large specific surface area, addition can significantly improve differential arc oxidation film layer
Wear-resisting property；The graphene country of oxidation-reduction method production has realized prepared by magnanimity, and price is down to 3 yuan/gram；Therefore, it compares
Complicated aluminium drill pipe process for treating surface, the modified differential arc oxidation film layer of graphene are more economical.
Detailed description of the invention
Fig. 1 is differential arc oxidation coating Cross Section Morphology in present example 1.
Fig. 2 is the modified differential arc oxidation coating Cross Section Morphology of graphene in present example 1.
Fig. 3 is the friction of differential arc oxidation coating (1#) and graphene modified differential arc oxidation coating (2#) in present example 2
Coefficient test result.
Fig. 4 is the abrasion of differential arc oxidation coating (1#) and graphene modified differential arc oxidation coating (2#) in present example 2
Depth test result.
Specific embodiment
Below in conjunction with drawings and examples, the following further describes the technical solution of the present invention.
The preparation method of the aluminium drill pipe provided by the invention modified differential arc oxidation coating of wear-resisting graphene, including it is following
Step:
Step 1: the sample for being derived from aluminium drill pipe is put into after impregnating 4~7min in derusting degreasing fluid, takes out sample, and
Clean drying surface；Wherein, derusting degreasing fluid is the potassium hydroxide solution of mass fraction 5%.
Step 2: sodium metasilicate, calgon, alkali, complexing agent being added to the water, is uniformly mixed, obtains differential arc oxidation
Liquid；Wherein, sodium silicate silicate is 0.5~8g/L, and hexa metaphosphoric acid na concn is 15~35g/L, and alkali concentration is 0.1~1g/L, network
Mixture concentration is 0.1~1.5g/L；Wherein, alkali is one or both of potassium hydroxide, sodium hydroxide；Complexing agent is citric acid
Sodium.
It is 170~240m by specific surface area2The graphene of/g is added in the lye that concentration is 0.3g/L, is in revolving speed
7000~8000 revs/min of lower 5~10min of Centrifugal dispersion, filtering, obtain prefabricated graphene dispersing solution；In prefabricated graphene dispersion
Complexing agent is added in liquid, 5~10min of ultrasonic disperse, obtains graphene dispersing solution at 250~350W.Wherein, graphene and alkali
The ratio of liquid is with 100g:1L, and the ratio of complexing agent and prefabricated graphene dispersing solution is 0.02g:1L.Wherein, lye be potassium hydroxide,
The aqueous solution of one or both of sodium hydroxide；Complexing agent is sodium citrate.
After graphene dispersing solution ultrasonic disperse, pours into prepared differential arc oxidation liquid, obtain graphene differential arc oxidation
Then liquid stirs 5~8min using agitator air, obtains graphene differential arc oxidation liquid；Wherein, in every 1L differential arc oxidation liquid
Graphene dispersing solution additional amount is 1~12g；Stirring is stirred using compressed air, the aeration quantity of every liter of graphene differential arc oxidation liquid
For 30~40L/h.
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 20~40 DEG C
It is taken out after carrying out differential arc oxidation；Wherein, the actual conditions of differential arc oxidation are as follows: use constant current mode, electric current is 1.5~2.5A, frequency
400~700Hz of rate, is stirred using compressed air, and the aeration quantity of every liter of graphene differential arc oxidation liquid is 15~20L/h, differential of the arc oxygen
The change time is 5~40min.Aluminium drill pipe sample is anode, and stainless steel electrolytic cell is cathode, with conducting wire jointed anode, suspension
Differential arc oxidation is carried out in stainless steel electrolytic cell.
Step 4: by the sample merging rinse bath cleaning after differential arc oxidation, then by 50~80 DEG C of hot-air seasoning 3~
5min obtains the aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
Differential arc oxidation liquid in the present invention is reusable；After only needing sample of every preparation, according to prepares coating sample
Area, need to be according to 0.25~0.5g/dm2Graphene dispersing solution consumption, supplement graphene dispersing solution, then use gas
Dynamic blender stirs 5~8min, then carries out the differential arc oxidation sample preparation of next group.
It is illustrated below by specific embodiment.
Embodiment 1
Involved alloy drilling rod is as follows with the modified differential arc oxidation coating step of preparation process of wear-resisting graphene:
Step 1: the sample for being derived from aluminium drill pipe being put into after impregnating 7min in derusting degreasing fluid, take out sample, and wash
Net drying surface.Wherein, derusting degreasing fluid is the potassium hydroxide solution of mass fraction 5%.
Step 2: differential arc oxidation liquid is made by following procedure: sodium metasilicate, calgon, alkali, complexing agent are added to
In water, it is uniformly mixed, obtains differential arc oxidation liquid；Wherein, differential arc oxidation liquid component content are as follows: sodium silicate silicate 4g/L, six partially
Phosphoric acid na concn is 28g/L, alkali concentration 0.2g/L, complexing agent concentration 0.5g/L.Wherein, alkali is potassium hydroxide；Complexing agent
For sodium citrate.
It is 170~240m by specific surface area2The graphene of/g be added to concentration be 0.3g/L lye in, 7000 turns/
5~10min of Centrifugal dispersion under point, filtering, obtains prefabricated graphene dispersing solution；Complexing is added in prefabricated graphene dispersing solution
Agent, ultrasonic disperse 8min, obtains graphene dispersing solution at 260W.Wherein, the ratio of graphene and lye is with 100g:1L, network
The ratio of mixture and prefabricated graphene dispersing solution is 0.02g:1L.Wherein, lye is the aqueous solution of potassium hydroxide；Complexing agent is lemon
Sour sodium.
Graphene dispersing solution is poured into prepared differential arc oxidation liquid, 5min is stirred using agitator air；Pneumatically stir
Mixing aeration quantity is 35L/h, obtains graphene differential arc oxidation liquid；The quality for the graphene dispersing solution being added in every liter of differential arc oxidation liquid
For 6g；
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 25 DEG C and is carried out
It aoxidizes, is taken out after differential arc oxidation 10min；Wherein, the electric current of oxidation is 2A, and frequency 450HZ, pneumatic stirring aeration quantity is 15L/
h。
Step 4: by the sample merging rinse bath cleaning after differential arc oxidation, then by 50 DEG C of hot-air seasoning 3min, obtaining
A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
Sample is cut on the modified differential arc oxidation coating sample of wear-resisting graphene to the alloy drilling rod in embodiment 1, is gone forward side by side
Row coating layer thickness test, with differential arc oxidation coating as control group.Test result is as shown in Figure 1 and shown in Fig. 2.From Fig. 1 and Fig. 2
In as can be seen that about 14 μm of differential arc oxidation coating thickness, and modified about 22 μm of the differential arc oxidation coating thickness of graphene, and apply thickness
Degree is more evenly.
Embodiment 2
Involved alloy drilling rod is as follows with the modified differential arc oxidation coating step of preparation process of wear-resisting graphene:
Step 1: the sample for being derived from aluminium drill pipe being put into after impregnating 4min in derusting degreasing fluid, take out sample, and wash
Net drying surface.Wherein, derusting degreasing fluid is the potassium hydroxide solution of mass fraction 5%.
Step 2: differential arc oxidation liquid is made by following procedure: sodium metasilicate, calgon, alkali, complexing agent are added to
In water, it is uniformly mixed, obtains differential arc oxidation liquid；Wherein, differential arc oxidation liquid component content are as follows: differential arc oxidation liquid component content are as follows:
Sodium silicate silicate is 6g/L, and hexa metaphosphoric acid na concn is 35g/L, alkali concentration 0.3g/L, complexing agent concentration 0.3g/L.Its
In, alkali is sodium hydroxide；Complexing agent is sodium citrate.
It is 170~240m by specific surface area2The graphene of/g be added to concentration be 0.3g/L lye in, 8000 turns/
5~10min of Centrifugal dispersion under point, filtering, obtains prefabricated graphene dispersing solution；Complexing is added in prefabricated graphene dispersing solution
Agent, ultrasonic disperse 8min, obtains graphene dispersing solution at 300W.Wherein, the ratio of graphene and lye is with 100g:1L, network
The ratio of mixture and prefabricated graphene dispersing solution is 0.02g:1L.Wherein, lye is the aqueous solution of sodium hydroxide；Complexing agent is lemon
Sour sodium.
Graphene dispersing solution is poured into prepared differential arc oxidation liquid, 6min is stirred using agitator air；Pneumatically stir
Mixing aeration quantity is 30L/h, obtains graphene differential arc oxidation liquid；Graphene dispersing solution additional amount in every 1L differential arc oxidation liquid is
10g。
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 30 DEG C and is carried out
It aoxidizes, is taken out after differential arc oxidation 25min；Wherein, the electric current of oxidation is 2.5A, frequency 500HZ, and pneumatic stirring aeration quantity is
20L/h。
Step 4: by the sample merging rinse bath cleaning after differential arc oxidation, then by 50 DEG C of hot-air seasoning 4min, obtaining
A kind of aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
Sample is cut on the modified differential arc oxidation coating sample of wear-resisting graphene to the alloy drilling rod in embodiment 2, is gone forward side by side
Row friction and wear behavior test, with differential arc oxidation coating as control group.Test result is as shown in Figure 3 and shown in Fig. 4.From Fig. 3
It is about 0.65 with can be seen that differential arc oxidation coating coefficient of friction in Fig. 4, the modified differential arc oxidation coating coefficient of friction of graphene is about
It is 0.55；Differential arc oxidation coating wearing depth is about 35 μm, and the modified differential arc oxidation coating wearing depth of graphene is about 20 μm, resistance to
Mill property improves 75%.
Embodiment 3
Step 1: the sample for being derived from aluminium drill pipe being put into the potassium hydroxide solution of mass concentration 5% and impregnate 8min
Afterwards, sample is taken out, and cleans drying surface；Wherein, derusting degreasing fluid is the potassium hydroxide solution of mass fraction 5%.
Step 2: differential arc oxidation liquid is made by following procedure: sodium metasilicate, calgon, alkali and complexing agent are added
Into water, it is uniformly mixed, obtains differential arc oxidation liquid；Wherein, sodium silicate silicate 0.5g/L, hexa metaphosphoric acid na concn are 15g/L,
Alkali concentration is 0.1g/L, complexing agent concentration 1.5g/L.Alkali is the mixture of potassium hydroxide and sodium hydroxide；Complexing agent is lemon
Sour sodium.
It is 170~240m by specific surface area2The graphene of/g be added to concentration be 0.3g/L lye in, 7500 turns/
5~10min of Centrifugal dispersion under point, filtering, obtains prefabricated graphene dispersing solution；Complexing is added in prefabricated graphene dispersing solution
Agent, ultrasonic disperse 10min, obtains graphene dispersing solution at 250W.Wherein, the ratio of graphene and lye is with 100g:1L, network
The ratio of mixture and prefabricated graphene dispersing solution is 0.02g:1L.Wherein, lye is the aqueous solution of potassium hydroxide and sodium hydroxide；Network
Mixture is sodium citrate.
In the differential arc oxidation liquid that graphene dispersing solution is poured into, 8min, every liter of graphene are then stirred using compressed air
The aeration quantity of differential arc oxidation liquid is 40L/h, obtains graphene differential arc oxidation liquid；Wherein, the graphene in every 1L differential arc oxidation liquid
Dispersion liquid additional amount is 1g；
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 20 DEG C and is carried out
It is taken out after differential arc oxidation；The actual conditions of differential arc oxidation are as follows: use constant current mode, electric current 1.5A, frequency 400Hz, using pressure
Contracting air stirring, the aeration quantity of every liter of graphene differential arc oxidation liquid are 17L/h, and the differential arc oxidation time is 40min；In step 3, dry
It is dry specifically: to pass through 80 DEG C of hot-air seasoning 3min.
Step 4: by the sample clean after differential arc oxidation, then drying, it is micro- with the modification of wear-resisting graphene to obtain aluminium drill pipe
Arc oxide covering.
Embodiment 4
Step 1: the sample for being derived from aluminium drill pipe being put into the potassium hydroxide solution of mass concentration 5% and impregnate 6min
Afterwards, sample is taken out, and cleans drying surface；
Step 2: differential arc oxidation liquid is made by following procedure: sodium metasilicate, calgon, alkali and complexing agent are added
Into water, it is uniformly mixed, obtains differential arc oxidation liquid；Wherein, sodium silicate silicate 8g/L, hexa metaphosphoric acid na concn are 21g/L, alkali
Concentration is 1g/L, complexing agent concentration 0.1g/L.Alkali is potassium hydroxide；Complexing agent is sodium citrate.
It is 170~240m by specific surface area2The graphene of/g be added to concentration be 0.3g/L lye in, 8000 turns/
5~10min of Centrifugal dispersion under point, filtering, obtains prefabricated graphene dispersing solution；Complexing is added in prefabricated graphene dispersing solution
Agent, ultrasonic disperse 5min, obtains graphene dispersing solution at 350W.Wherein, the ratio of graphene and lye is with 100g:1L, network
The ratio of mixture and prefabricated graphene dispersing solution is 0.02g:1L.Wherein, lye is the aqueous solution of sodium hydroxide；Complexing agent is lemon
Sour sodium.
In the differential arc oxidation liquid that graphene dispersing solution is poured into, 7min, every liter of graphene are then stirred using compressed air
The aeration quantity of differential arc oxidation liquid is 32L/h, obtains graphene differential arc oxidation liquid；Wherein, the graphene in every 1L differential arc oxidation liquid
Dispersion liquid additional amount is 12g；
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 40 DEG C and is carried out
It is taken out after differential arc oxidation；The actual conditions of differential arc oxidation are as follows: use constant current mode, electric current 1.7A, frequency 700Hz, using pressure
Contracting air stirring, the aeration quantity of every liter of graphene differential arc oxidation liquid are 18L/h, and the differential arc oxidation time is 5min；In step 3, dry
It is dry specifically: to pass through 70 DEG C of hot-air seasoning 5min.
Step 4: by the sample clean after differential arc oxidation, then drying, it is micro- with the modification of wear-resisting graphene to obtain aluminium drill pipe
Arc oxide covering.
A kind of aluminium drill pipe of the invention modified differential arc oxidation coating of wear-resisting graphene, after adding graphene, is improved
The growth rate and uniformity of coating, reduces the coefficient of friction of coating, and coating wear resistance improves 50% or more.
Claims (10)
1. a kind of aluminium drill pipe preparation method of the modified differential arc oxidation coating of wear-resisting graphene, which is characterized in that including with
Lower step:
Step 1: the sample for being derived from aluminium drill pipe being put into after being impregnated in derusting degreasing fluid, take out sample, and clean drying table
Face；
Step 2: in the differential arc oxidation liquid that graphene dispersing solution is poured into, 5~8min then being stirred using agitator air, is obtained
Graphene differential arc oxidation liquid；Wherein, the graphene dispersing solution additional amount in every 1L differential arc oxidation liquid is 1~12g；
Step 3: the aluminium drill pipe sample after oil removing being put into the graphene differential arc oxidation liquid that temperature is 20~40 DEG C and is carried out
It is taken out after differential arc oxidation, obtains the aluminium drill pipe modified differential arc oxidation coating of wear-resisting graphene.
2. a kind of aluminium drill pipe according to claim 1 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that in step 1, anti-rusting liquid for removing oil is the potassium hydroxide solution of mass concentration 5%.
3. a kind of aluminium drill pipe according to claim 1 or 2 preparation of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that in step 1, the time of immersion is 10~15min.
4. a kind of aluminium drill pipe according to claim 1 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that in step 2, differential arc oxidation liquid is made by following procedure: by sodium metasilicate, calgon, alkali and network
Mixture is add to deionized water, and is uniformly mixed, is obtained differential arc oxidation liquid；Wherein, sodium silicate silicate is 0.5~8g/L, and six partially
The concentration of sodium phosphate is 15~35g/L, and the concentration of alkali is 0.1~1g/L, and the concentration of complexing agent is 0.1~1.5g/L.
5. a kind of aluminium drill pipe according to claim 1 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that in step 2, graphene dispersing solution is made by following procedure: being 170~240m by specific surface area2/ g's
Graphene is added in the lye that concentration is 0.3g/L, Centrifugal dispersion, and filtering obtains prefabricated graphene dispersing solution；In Prefabricated stone
Complexing agent is added in black alkene dispersion liquid, ultrasonic disperse obtains graphene dispersing solution；Wherein, the ratio of graphene and lye be with
The ratio of 100g:1L, complexing agent and prefabricated graphene dispersing solution is 0.02g:1L.
6. a kind of aluminium drill pipe according to claim 5 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that alkali is one or both of potassium hydroxide, sodium hydroxide；Complexing agent is sodium citrate.
7. a kind of aluminium drill pipe according to claim 5 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that the revolving speed of Centrifugal dispersion is 7000~8000 revs/min, and the time is 5~10min；The power of ultrasonic disperse is
250~350W, the time of ultrasonic disperse are 5~10min.
8. a kind of aluminium drill pipe according to claim 1 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that the stirring in step 2 is stirred using compressed air, and the aeration quantity of every liter of graphene differential arc oxidation liquid is 30
~40L/h.
9. a kind of aluminium drill pipe according to claim 1 preparation side of the modified differential arc oxidation coating of wear-resisting graphene
Method, which is characterized in that in step 3, the actual conditions of differential arc oxidation are as follows: use constant current mode, electric current is 1.5~2.5A, frequency
400~700Hz is stirred using compressed air, and the aeration quantity of every liter of graphene differential arc oxidation liquid is 15~20L/h, differential arc oxidation
Time is 5~40min；In step 3, drying specifically: pass through 50~80 DEG C of 3~5min of hot-air seasoning.
10. a kind of aluminium drill pipe of the preparation of any one of -9 methods according to claim 1 modified differential of the arc of wear-resisting graphene
Oxide covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257171.5A CN110029387B (en) | 2019-04-01 | 2019-04-01 | Wear-resistant graphene modified micro-arc oxidation coating for aluminum alloy drill rod and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910257171.5A CN110029387B (en) | 2019-04-01 | 2019-04-01 | Wear-resistant graphene modified micro-arc oxidation coating for aluminum alloy drill rod and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512255A (en) * | 2019-09-26 | 2019-11-29 | 长安大学 | High-heat conductivity and large-power LED lamp aluminium alloy heat radiator differential arc oxidation coating preparation method |
| CN112251790A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN114141402A (en) * | 2021-10-29 | 2022-03-04 | 安徽省恒泰动力科技有限公司 | Preparation process of aluminum-magnesium alloy product |
| CN114262888A (en) * | 2021-11-30 | 2022-04-01 | 淮阴工学院 | In-situ ceramic antifriction coating on steel surface and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560591A (en) * | 2011-12-01 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Micro-arc oxidation electrolyte and micro-arc oxidation method |
| CN107641828A (en) * | 2017-09-21 | 2018-01-30 | 东莞市铭通金属科技有限公司 | A kind of differential arc oxidation liquid and micro-arc oxidation process |
| CN107740158A (en) * | 2017-11-08 | 2018-02-27 | 江门市江海区杰德化工有限公司 | In the method that aluminum alloy surface prepares differential arc oxidation colored film layer |
| CN108950549A (en) * | 2018-07-05 | 2018-12-07 | 哈尔滨工业大学 | A kind of preparation method of aluminum alloy surface low sunlight absorptivity high emissivity conduction thermal control coating |
| CN108977865A (en) * | 2018-07-19 | 2018-12-11 | 中国人民解放军92228部队 | A kind of preparation method of 5XXX aluminium and the high anti-corrosion single fine and close differential arc oxidation film layer of aluminum alloy surface |
-
2019
- 2019-04-01 CN CN201910257171.5A patent/CN110029387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560591A (en) * | 2011-12-01 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Micro-arc oxidation electrolyte and micro-arc oxidation method |
| CN107641828A (en) * | 2017-09-21 | 2018-01-30 | 东莞市铭通金属科技有限公司 | A kind of differential arc oxidation liquid and micro-arc oxidation process |
| CN107740158A (en) * | 2017-11-08 | 2018-02-27 | 江门市江海区杰德化工有限公司 | In the method that aluminum alloy surface prepares differential arc oxidation colored film layer |
| CN108950549A (en) * | 2018-07-05 | 2018-12-07 | 哈尔滨工业大学 | A kind of preparation method of aluminum alloy surface low sunlight absorptivity high emissivity conduction thermal control coating |
| CN108977865A (en) * | 2018-07-19 | 2018-12-11 | 中国人民解放军92228部队 | A kind of preparation method of 5XXX aluminium and the high anti-corrosion single fine and close differential arc oxidation film layer of aluminum alloy surface |
Non-Patent Citations (2)
| Title |
|---|
| 何海艳 等: "六偏磷酸钠对6061 铝合金微弧氧化陶瓷膜形貌及性质的影响", 《热加工工艺》 * |
| 张玉林 等: "石墨烯添加剂对铝合金表面微弧氧化膜耐磨耐蚀性的影响", 《材料热处理学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512255A (en) * | 2019-09-26 | 2019-11-29 | 长安大学 | High-heat conductivity and large-power LED lamp aluminium alloy heat radiator differential arc oxidation coating preparation method |
| CN112251790A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN112251790B (en) * | 2020-10-22 | 2021-12-24 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN114141402A (en) * | 2021-10-29 | 2022-03-04 | 安徽省恒泰动力科技有限公司 | Preparation process of aluminum-magnesium alloy product |
| CN114141402B (en) * | 2021-10-29 | 2024-04-26 | 安徽省恒泰动力科技有限公司 | Preparation process of aluminum-magnesium alloy product |
| CN114262888A (en) * | 2021-11-30 | 2022-04-01 | 淮阴工学院 | In-situ ceramic antifriction coating on steel surface and preparation method thereof |
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