CN109208057A - Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy - Google Patents
Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy Download PDFInfo
- Publication number
- CN109208057A CN109208057A CN201811440352.3A CN201811440352A CN109208057A CN 109208057 A CN109208057 A CN 109208057A CN 201811440352 A CN201811440352 A CN 201811440352A CN 109208057 A CN109208057 A CN 109208057A
- Authority
- CN
- China
- Prior art keywords
- boron carbide
- anodic oxidation
- electrolyte
- sodium
- magnesium alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C25D11/30—Anodisation of magnesium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention provides a kind of electrolyte containing nano boron carbide anodic oxidation of magnetism alloy and preparation method thereof and anodic oxidation method for magnesium alloy, it is related to technical field of electrolyte, including sodium hydroxide, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and boron carbide.The present invention provides the electrolyte and preparation method thereof containing nano boron carbide anodic oxidation of magnetism alloy, above-mentioned electrolyte is met environmental requirements without harmful elements such as Cr, P and F, not will cause environmental pollution.
Description
Technical field
The present invention relates to technical field of electrolyte, in particular to containing nano boron carbide anodic oxidation of magnetism alloy
Electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy.
Background technique
Magnesium alloy is widely used in electronics and automobile due to low-density, high strength-weight ratio and excellent dimensional stability
Industry.The corrosion resistance of magnesium alloy be it is minimum in common metal structural material, easily generation galvanic corrosion, these become limitation magnesium close
The critical issue of gold application.Currently, studying more magnesium alloy surface treatment mainly has differential arc oxidation, anodic oxidation, change
Learn conversion, the coat of metal, organic coating etc..Wherein, anodic oxidation is particularly subject to the favor of people, because anodic oxidation not only may be used
To prepare the oxidation film that film thickness is thicker, adhesive force is good and corrosion resisting property is good, and the oxidation film can be used as other surfaces processing
The bottom of technology, cooperation other surfaces processing technique protect magnesium alloy substrate.
Currently, the electrolyte solution of Mg alloy surface used processing is broadly divided into two classes in industrial production.The first kind be with
The electrolyte as main component of compound containing Cr, such as DOW17 traditional handicraft；It is main that second class, which is with phosphate or fluoride,
The electrolyte of ingredient, such as HAE technique.Mostly contain the harmful elements such as Cr, P and F, environmental pollution in above-mentioned electrolyte solution
Seriously, the processing cost of waste liquid is high, does not meet the requirement of sustainable development.Therefore, the environment-friendly type of the harmful elements such as no Cr, P and F
Electrolyte and its technique become the emphasis of anodic oxidation of magnetism alloy research now.
Summary of the invention
The object of the present invention is to provide a kind of electrolyte containing nano boron carbide anodic oxidation of magnetism alloy.Using this
Electrolyte can generate oxidation film in Mg alloy surface.And the micropore of oxidation film is evenly distributed, roughness is small, corrosion resistance is good, micro-
Hardness is high.
Another object of the present invention is to provide a kind of systems of electrolyte containing nano boron carbide anodic oxidation of magnetism alloy
Preparation Method.The electrolyte containing nano boron carbide anodic oxidation of magnetism alloy prepared by the preparation method can be in magnesium alloy table
Face generates the excellent oxidation film of corrosion resisting property.
Another object of the present invention is to provide a kind of anodic oxidation method for magnesium alloy.It can be by the anode oxidation method
Contain the constant current anodic oxidation that magnesium alloy is carried out in boron carbide anodic oxidation electrolyte.
The present invention is implemented as follows:
On the one hand, the present invention provides a kind of electrolyte containing nano boron carbide anodic oxidation of magnetism alloy comprising with
Lower component: sodium hydroxide, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and boron carbide.
In preferred embodiments of the present invention, above-mentioned electrolyte includes: sodium hydroxide 10-70g/L, sodium aluminate 20-60g/
L, sodium carbonate 5-25g/L, sodium tetraborate 20-70g/L, sodium citrate 3-10g/L.
In preferred embodiments of the present invention, the average grain diameter of above-mentioned boron carbide is 40-600nm, and preferably boron carbide is flat
Equal partial size is 50-200nm.Boron carbide average grain diameter generated oxidation film corrosion resistance and wear-resisting property within the scope of 50-200nm
Most preferably.
In preferred embodiments of the present invention, above-mentioned boron carbide is modified boron carbide, and modified boron carbide is in the following way
It is made: surface is carried out in the modified solution containing anionic surfactant and nonionic surfactant using boron carbide raw material
It is made after modification；Preferably, the concentration of modified boron carbide in the electrolytic solution is 1-8g/L.
In preferred embodiments of the present invention, above-mentioned anionic surfactant is lauryl sodium sulfate, dodecyl
Sodium sulfonate or combinations thereof, nonionic surfactant OP-10.Using different anionic surfactant formulas and nonionic
Surfactant package is modified boron carbide, and obtained oxide thickness is different, and corrosion resistance is different.
In preferred embodiments of the present invention, mass fraction of the above-mentioned anionic surfactant in modified solution is 3-
5%, mass fraction of the nonionic surfactant in modified solution is 1-3%.
In preferred embodiments of the present invention, the mass ratio of above-mentioned boron carbide and modified solution is 1:80-1:200.
In preferred embodiments of the present invention, the surface of above-mentioned anionic surfactant and nonionic surfactant changes
Property treatment conditions are as follows: time 2-4h, temperature be 40-50 DEG C.Different surface modification treatment time and treatment temperature, it is obtained
Electrolyte it is different, different in the oxide thickness that Mg alloy surface generates, corrosion resisting property is different.
On the other hand, the present invention provides a kind of methods for preparing electrolyte comprising: by sodium hydroxide, sodium aluminate, carbon
Sour sodium, sodium tetraborate, sodium citrate and boron carbide are mixed with water.
On the other hand, the present invention provides a kind of anodic oxidation method for magnesium alloy comprising following steps:
Anodic oxidation of magnetism alloy step: the magnesium alloy as anode is immersed and is closed as described above containing nano boron carbide magnesium
Constant current anodic oxidation is carried out in the electrolyte of gold anode oxidation, the present invention prepares Anodic Film On Magnesium Alloy in Mg alloy surface,
The magnesium alloy oxidation film is smooth, fine and close, adhesive force is strong, corrosion resisting property is excellent.
In preferred embodiments of the present invention, carrying out power supply used in constant current anodic oxidation is the pulse power.
In preferred embodiments of the present invention, current density 1A/dm2-5A/dm2, frequency range 100Hz-500Hz,
Duty ratio is 10%-30%.
The beneficial effects of the present invention are: a kind of electricity containing nano boron carbide anodic oxidation of magnetism alloy provided by the present invention
Liquid is solved without harmful elements such as Cr, P and F, is provided for anodic oxidation of magnetism alloy environment-friendly type, non-harmful industrialization direction using base
Plinth.Contain nano boron carbide magnesium by what the preparation method of the electrolyte containing nano boron carbide anodic oxidation of magnetism alloy was prepared
The electrolyte of alloy anode oxidation can generate the excellent oxidation film of corrosion resisting property in Mg alloy surface.In addition, the present invention also provides
A kind of anodic oxidation method for magnesium alloy, the present invention prepare Anodic Film On Magnesium Alloy in Mg alloy surface, magnesium alloy oxidation
Film is smooth, fine and close, adhesive force is strong, corrosion resisting property is excellent.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
It is provided in this embodiment to include: containing nano boron carbide magnesium alloy anodic oxidation electrolyte
NaOH:20g/L, Na2AlO2: 30g/L, Na2CO3: 10g/L, Na2B4O7: 60g/L, sodium citrate: 3g/L and carbonization
Boron: 3g/L.
The electrolyte of the present embodiment the preparation method is as follows:
The average grain diameter of boron carbide is 50nm, in the lauryl sodium sulfate containing mass fraction 2%, 2% dodecane
Base sodium sulfonate and 2% OP-10 aqueous solution in carry out surface modification treatment.Specific treatment conditions are as follows: time 3h, temperature are
45 DEG C, the mass ratio that boron carbide and above-mentioned anion and nonionic surfactant handle liquor is 1:120.By hydroxide
Sodium, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and modified boron carbide and water are made into anodic oxidation electrolyte.
It is as follows that anodic oxidation method for magnesium alloy is carried out using the electrolyte of the present embodiment:
1. plate pre-processes: sample is AZ31 magnesium alloy plate, and sample sandblasting, sand paper or machine is made in magnesium alloy plate
Tool polishing removes the foreign matters such as burr, oxide, remover, the cutting oil on magnesium alloy plate surface, reduces magnesium alloy plate surface
Roughness；Distilled water cleaning, acetone ultrasonic cleaning, distilled water cleaning, drying are successively carried out after polishing, obtain magnesium alloy
Sample, it is spare.
2. anodic oxidation of magnetism alloy: magnesium alloy sample is carried out anodic oxidation in above-mentioned electrolyte.It is yin with stainless steel
Pole, magnesium alloy are anode, and in the case where revolving speed is the stirring condition of 800rpm, constant current anodic oxidation, electrolyte temperature is controlled at 25 DEG C,
Time is 15min.Power supply used is the pulse power, and pulse frequency and duty ratio are continuously adjustable, current density 1A/dm2, frequency
Rate 500Hz, duty ratio 10%.The oxidation film thicknesses of layers of preparation is 15.4 μm, and roughness is 0.788 μm.
Test experience:
By the magnesium alloy without anodic oxidation and the magnesium alloy Jing Guo anodized in 3.5% sodium chloride solution
Do Tafel polarization curve and carry out corrosion evaluation, as a result can obtain: the Corrosion Behaviors of Magnesium Alloys current potential without anodic oxidation is -1.548V, from
Corrosion electric current density is 4.169 × 10-5A/cm2, the Corrosion Behaviors of Magnesium Alloys current potential by anodized is -1.265V, corrosion
Current potential has shuffled 0.283V, and corrosion current density is 4.258 × 10-7A/cm2。
Embodiment 2
It is provided in this embodiment to include: containing nano boron carbide magnesium alloy anodic oxidation electrolyte
NaOH:65g/L, Na2AlO2: 25g/L, Na2CO3: 5g/L, Na2B4O7: 20g/L, sodium citrate: 9g/L and carbonization
Boron: 7.5g/L.
The electrolyte of the present embodiment the preparation method is as follows:
The average grain diameter of boron carbide is 100nm, in the lauryl sodium sulfate containing mass fraction 3% and 1% OP-10
Surface modification treatment is carried out in aqueous solution.Specific treatment conditions are as follows: time 4h, temperature are 40 DEG C, boron carbide and above-mentioned yin
The mass ratio of ion and nonionic surfactant processing liquor is 1:180.By sodium hydroxide, sodium aluminate, sodium carbonate, four boron
Sour sodium, sodium citrate and modified boron carbide and water are made into anodic oxidation electrolyte.
It is as follows that anodic oxidation method for magnesium alloy is carried out using the electrolyte of the present embodiment:
1. plate pre-processes: sample is AZ31 magnesium alloy plate, and sample sandblasting, sand paper or machine is made in magnesium alloy plate
Tool polishing removes the foreign matters such as burr, oxide, remover, the cutting oil on magnesium alloy plate surface, reduces magnesium alloy plate surface
Roughness；Distilled water cleaning, acetone ultrasonic cleaning, distilled water cleaning, drying are successively carried out after polishing, obtain magnesium alloy
Sample, it is spare.
2. anodic oxidation of magnetism alloy: magnesium alloy sample is carried out anodic oxidation in above-mentioned electrolyte.It is yin with stainless steel
Pole, magnesium alloy are anode, and in the case where revolving speed is the stirring condition of 800rpm, constant current anodic oxidation, electrolyte temperature is controlled at 25 DEG C,
Time is 20min.Power supply used is the pulse power, and pulse frequency and duty ratio are continuously adjustable, current density 3A/dm2, frequency
Rate 200Hz, duty ratio 30%.The oxidation film thicknesses of layers of preparation is 17.6 μm, and roughness is 0.948 μm.
Test experience:
By the magnesium alloy without anodic oxidation and the magnesium alloy Jing Guo anodized in 3.5% sodium chloride solution
Do Tafel polarization curve and carry out corrosion evaluation, as a result can obtain: the Corrosion Behaviors of Magnesium Alloys current potential without anodic oxidation is -1.548V, from
Corrosion electric current density is 4.169 × 10-5A/cm2, the Corrosion Behaviors of Magnesium Alloys current potential by anodized is -1.226V, corrosion
Current potential has shuffled 0.322V, and corrosion current density is 2.246 × 10-7A/cm2。
Embodiment 3
It is provided in this embodiment to include: containing nano boron carbide magnesium alloy anodic oxidation electrolyte
NaOH:10g/L, Na2AlO2: 55g/L, Na2CO3: 5g/L, Na2B4O7: 40g/L, sodium citrate: 6.5g/L and carbon
Change boron: 1.5g/L.
The electrolyte of the present embodiment the preparation method is as follows:
The average grain diameter of boron carbide is 500nm, in the dodecyl sodium sulfate containing mass fraction 5% and 1.5% OP-
Surface modification treatment is carried out in 10 aqueous solutions.Specific treatment conditions are as follows: time 4h, temperature be 40 DEG C, boron carbide with it is above-mentioned
The mass ratio of anion and nonionic surfactant processing liquor is 1:160.By sodium hydroxide, sodium aluminate, sodium carbonate, four
Boratex, sodium citrate and modified boron carbide and water are made into anodic oxidation electrolyte.
It is as follows that anodic oxidation method for magnesium alloy is carried out using the electrolyte of the present embodiment:
1. plate pre-processes: sample is AZ31 magnesium alloy plate, and sample sandblasting, sand paper or machine is made in magnesium alloy plate
Tool polishing removes the foreign matters such as burr, oxide, remover, the cutting oil on magnesium alloy plate surface, reduces magnesium alloy plate surface
Roughness；Distilled water cleaning, acetone ultrasonic cleaning, distilled water cleaning, drying are successively carried out after polishing, obtain magnesium alloy
Sample, it is spare.
2. anodic oxidation of magnetism alloy: magnesium alloy sample is carried out anodic oxidation in above-mentioned electrolyte.It is yin with stainless steel
Pole, magnesium alloy are anode, and in the case where revolving speed is the stirring condition of 800rpm, constant current anodic oxidation, electrolyte temperature is controlled at 25 DEG C,
Time is 30min.Power supply used is the pulse power, and pulse frequency and duty ratio are continuously adjustable, current density 2.5A/dm2,
Frequency 200Hz, duty ratio 10%.The oxidation film thicknesses of layers of preparation is 21.4 μm, and roughness is 1.246 μm.
Test experience:
By the magnesium alloy without anodic oxidation and the magnesium alloy Jing Guo anodized in 3.5% sodium chloride solution
Do Tafel polarization curve and carry out corrosion evaluation, as a result can obtain: the Corrosion Behaviors of Magnesium Alloys current potential without anodic oxidation is -1.548V, from
Corrosion electric current density is 4.169 × 10-5A/cm2, the Corrosion Behaviors of Magnesium Alloys current potential by anodized is -1.318V, corrosion
Current potential has shuffled 0.230V, and corrosion current density is 3.874 × 10-7A/cm2。
Embodiment 4
It is provided in this embodiment to include: containing nano boron carbide magnesium alloy anodic oxidation electrolyte
NaOH:20g/L, Na2AlO2: 35g/L, Na2CO3: 15g/L, Na2B4O7: 45g/L, sodium citrate: 4g/L and carbonization
Boron: 5g/L.
The electrolyte of the present embodiment the preparation method is as follows:
The average grain diameter of boron carbide is 200nm, in the dodecyl sodium sulfate containing mass fraction 2%, 2% dodecane
Base sodium sulphate and 2% OP-10 aqueous solution in carry out surface modification treatment.Specific treatment conditions are as follows: time 4h, temperature are
40 DEG C, the mass ratio that boron carbide and above-mentioned anion and nonionic surfactant handle liquor is 1:160.By hydroxide
Sodium, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and modified boron carbide and water are made into anodic oxidation electrolyte.
It is as follows that anodic oxidation method for magnesium alloy is carried out using the electrolyte of the present embodiment:
1. plate pre-process: sample be AZ91D magnesium alloy plate, by magnesium alloy plate be made sample sandblasting, sand paper or
Mechanical grinding removes the foreign matters such as burr, oxide, remover, the cutting oil on magnesium alloy plate surface, reduces magnesium alloy plate table
The roughness in face；Distilled water cleaning, acetone ultrasonic cleaning, distilled water cleaning, drying are successively carried out after polishing, obtain magnesium conjunction
Golden sample, it is spare.
2. anodic oxidation of magnetism alloy: magnesium alloy sample is carried out anodic oxidation in above-mentioned electrolyte.It is yin with stainless steel
Pole, magnesium alloy are anode, and in the case where revolving speed is the stirring condition of 800rpm, constant current anodic oxidation, electrolyte temperature is controlled at 25 DEG C,
Time is 30min.Power supply used is the pulse power, and pulse frequency and duty ratio are continuously adjustable, current density 3A/dm2, frequency
Rate 200Hz, duty ratio 10%.The oxidation film thicknesses of layers of preparation is 22.6 μm, and roughness is 1.286 μm.
Test experience:
By the magnesium alloy without anodic oxidation and the magnesium alloy Jing Guo anodized in 3.5% sodium chloride solution
Do Tafel polarization curve and carry out corrosion evaluation, as a result can obtain: the Corrosion Behaviors of Magnesium Alloys current potential without anodic oxidation is -1.556V, from
Corrosion electric current density is 4.326 × 10-5A/cm2, the Corrosion Behaviors of Magnesium Alloys current potential by anodized is -1.294V, corrosion
Current potential has shuffled 0.262V, and corrosion current density is 3.645 × 10-7A/cm2。
Comparative example
It is provided in this embodiment to include: containing nano boron carbide magnesium alloy anodic oxidation electrolyte
NaOH:20g/L, Na2AlO2: 30g/L, Na2CO3: 10g/L, Na2B4O7: 60g/L, sodium citrate: 3g/L and carbonization
Boron: 3g/L.
The electrolyte of the present embodiment the preparation method is as follows:
The average grain diameter of boron carbide is 50nm.By sodium hydroxide, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and carbon
Change boron and water is made into anodic oxidation electrolyte.
It is as follows that anodic oxidation method for magnesium alloy is carried out using the electrolyte of the present embodiment:
1. plate pre-processes: sample is AZ31 magnesium alloy plate, and sample sandblasting, sand paper or machine is made in magnesium alloy plate
Tool polishing removes the foreign matters such as burr, oxide, remover, the cutting oil on magnesium alloy plate surface, reduces magnesium alloy plate surface
Roughness；Distilled water cleaning, acetone ultrasonic cleaning, distilled water cleaning, drying are successively carried out after polishing, obtain magnesium alloy
Sample, it is spare.
2. anodic oxidation of magnetism alloy: magnesium alloy sample is carried out anodic oxidation in above-mentioned electrolyte.It is yin with stainless steel
Pole, magnesium alloy are anode, and in the case where revolving speed is the stirring condition of 800rpm, constant current anodic oxidation, electrolyte temperature is controlled at 25 DEG C,
Time is 15min.Power supply used is the pulse power, and pulse frequency and duty ratio are continuously adjustable, current density 1A/dm2, frequency
Rate 500Hz, duty ratio 10%.The oxidation film thicknesses of layers of preparation is 13.9 μm, and roughness is 1.148 μm.
Test experience:
By the magnesium alloy without anodic oxidation and the magnesium alloy Jing Guo anodized in 3.5% sodium chloride solution
Do Tafel polarization curve and carry out corrosion evaluation, as a result can obtain: the Corrosion Behaviors of Magnesium Alloys current potential without anodic oxidation is -1.548V, from
Corrosion electric current density is 4.169 × 10-5A/cm2, the Corrosion Behaviors of Magnesium Alloys current potential by anodized is -1.395V, corrosion
Current potential has shuffled 0.153V, and corrosion current density is 2.766 × 10-6A/cm2。
The beneficial effects of the present invention are: 1-4 of the embodiment of the present invention has carried out different ratio to the boron carbide of different-grain diameter
The surface modification treatment of anionic surfactant and nonionic surfactant passes through different processing time and treatment temperature
Modified boron carbide is prepared.Magnesium alloy immerse anodic oxidation electrolyte in, different pulse current densities, frequency and
Under the conditions of duty ratio and different electrolyte temperature and oxidization time, generation is smooth, fine and close, adhesive force is strong and corrosion resisting property is excellent
Good oxidation film.Specifically, embodiment 1-4 has carried out modification to boron carbide, and comparative example does not change boron carbide
Property processing, test result show embodiment 1-4 preparation oxidation film thicknesses of layers it is higher than comparative example, roughness is more than right
Ratio is low, and corrosion current density is lower than comparative example.Therefore, provided by the present invention to contain boron carbide anodic oxidation of magnetism alloy
Electrolyte can generate the oxidation film that smooth, fine and close, adhesive force is strong and corrosion resisting property is excellent in Mg alloy surface.In addition, of the invention
A kind of provided nano boron carbide magnesium alloy anodic oxidation electrolyte that contains is magnesium alloy sun without harmful elements such as Cr, P and F
Pole oxidation environment-friendly type, non-harmful industrialization direction provide application foundation.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of electrolyte containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that include the following components: hydrogen-oxygen
Change sodium, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and boron carbide.
2. the electrolyte according to claim 1 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that described
Electrolyte includes: sodium hydroxide 10-70g/L, sodium aluminate 20-60g/L, sodium carbonate 5-25g/L, sodium tetraborate 20-70g/L and lemon
Lemon acid sodium 3-10g/L.
3. according to the electrolyte described in claim 1 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that the carbon
Changing boron is modified boron carbide, and the modified boron carbide is made in the following way: using boron carbide raw material containing anionic surface
It is made after carrying out surface modification treatment in the modified solution of activating agent and nonionic surfactant；
Preferably, concentration of the modified boron carbide in the electrolyte is 1-8g/L.
4. the electrolyte according to claim 1 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that described
The average grain diameter of boron carbide is 40-600nm；Preferably, the average grain diameter of the boron carbide is 50-200nm.
5. the electrolyte according to claim 3 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that described
Anionic surfactant is lauryl sodium sulfate, dodecyl sodium sulfate or combinations thereof, the nonionic surfactant
For OP-10.
6. the electrolyte according to claim 5 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that described
Mass fraction of the anionic surfactant in the modified solution is 3-5%, and the nonionic surfactant is described
Mass fraction in modified solution is 1-3%.
7. the electrolyte according to claim 6 containing nano boron carbide anodic oxidation of magnetism alloy, which is characterized in that carbonization
The mass ratio of boron raw material and the modified solution is 1:80-1:200.
8. according to the described in any item electrolyte containing nano boron carbide anodic oxidation of magnetism alloy of claim 4-7, feature
It is, the condition of surface modification treatment are as follows: time 2-4h, temperature are 40-50 DEG C.
9. a kind of prepare the method such as the described in any item electrolyte of claim 1-7, characterized in that it comprises: by hydrogen-oxygen
Change sodium, sodium aluminate, sodium carbonate, sodium tetraborate, sodium citrate and boron carbide to mix with water.
10. a kind of anodic oxidation method for magnesium alloy, which is characterized in that it includes the following steps:
Anodic oxidation of magnetism alloy step: the magnesium alloy as anode is immersed as claim 1-8 is described in any item containing receiving
Constant current anodic oxidation is carried out in the electrolyte of rice boron carbide anodic oxidation of magnetism alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440352.3A CN109208057A (en) | 2018-11-29 | 2018-11-29 | Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440352.3A CN109208057A (en) | 2018-11-29 | 2018-11-29 | Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109208057A true CN109208057A (en) | 2019-01-15 |
Family
ID=64994688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440352.3A Pending CN109208057A (en) | 2018-11-29 | 2018-11-29 | Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109208057A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014706A (en) * | 2011-09-28 | 2013-04-03 | 柯全 | Ceramic membrane layer on metal surface and preparation method thereof |
| CN103060877A (en) * | 2013-01-08 | 2013-04-24 | 嘉兴中科亚美合金技术有限责任公司 | Electrolyte for aluminum alloy micro-plasma electrolytic oxidation and treating process thereof |
| CN108048893A (en) * | 2017-12-18 | 2018-05-18 | 嘉兴学院 | A kind of environmental-protection type magnesium alloy anodic oxidation electrolyte and anodic oxidation method for magnesium alloy |
-
2018
- 2018-11-29 CN CN201811440352.3A patent/CN109208057A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014706A (en) * | 2011-09-28 | 2013-04-03 | 柯全 | Ceramic membrane layer on metal surface and preparation method thereof |
| CN103060877A (en) * | 2013-01-08 | 2013-04-24 | 嘉兴中科亚美合金技术有限责任公司 | Electrolyte for aluminum alloy micro-plasma electrolytic oxidation and treating process thereof |
| CN108048893A (en) * | 2017-12-18 | 2018-05-18 | 嘉兴学院 | A kind of environmental-protection type magnesium alloy anodic oxidation electrolyte and anodic oxidation method for magnesium alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108560037B (en) | A kind of Boron Containing Low Carbon Steel oxidation film layer and preparation method thereof | |
| CN106884191B (en) | Electrolyte for micro-arc oxidation, micro-arc oxidation method and application | |
| CN106119927B (en) | The method that electrochemical treatments prepare anisotropy water-oil separating copper mesh | |
| CN106400079A (en) | Preparation method of multiple super-hydrophobic composite film layers on aluminium alloy surface | |
| CN105040071A (en) | Micro-arc oxidation electrolyte and magnesium alloy surface treatment method with same | |
| CN102021632A (en) | Method for preparing protective film on copper alloy surface | |
| CN110219031A (en) | Anodic oxidation electrolyte and method, the aluminum or aluminum alloy with anode oxide film | |
| Raj et al. | Comparative study of formation and corrosion performance of porous alumina and ceramic nanorods formed in different electrolytes by anodization | |
| CN107937965B (en) | A kind of magnesium alloy anodic oxidation electrolyte and anodic oxidation method for magnesium alloy | |
| CN108048893A (en) | A kind of environmental-protection type magnesium alloy anodic oxidation electrolyte and anodic oxidation method for magnesium alloy | |
| CN102277611A (en) | Method for treating surface of magnesium-based metal to give metallic texture thereof | |
| CN109252201A (en) | Magnesium alloy differential arc oxidation electrolyte and preparation method thereof and surface treatment method of Mg alloy | |
| CN102747406A (en) | Magnesium alloy anodic oxidation electrolyte and magnesium alloy surface treatment method | |
| Jiang et al. | Fabrication of superhydrophobic self-cleaning Ni-Co-MoS2/Ni composite coating | |
| CN109208057A (en) | Contain nano boron carbide magnesium alloy anodic oxidation electrolyte and preparation method thereof and anodic oxidation method for magnesium alloy | |
| CN105239122B (en) | A kind of carbon steel bolt electroplating pretreatment method | |
| Egorkin et al. | Effect of polarizing signal duty cycle on the composition, morphology, and protective properties of PEO coatings on AMg3 aluminum alloy | |
| CN109252202A (en) | Electrolyte containing nm-class boron nitride magnesium alloy differential arc oxidation and preparation method thereof and magnesium alloy differential arc oxidation method | |
| Zhan et al. | Effects of nickel additive on micro-arc oxidation coating of AZ63B magnesium alloy | |
| Zamora et al. | Impact of the type of anodic film formed and deposition time on the characteristics of porous anodic aluminium oxide films containing Ni metal | |
| CN106245107A (en) | A kind of surface polishing method of beryllium material | |
| CN109137043A (en) | A kind of titanium or titanium alloy differential arc oxidation coating production technology | |
| Sánchez et al. | Effect of Electrochemical Anodization on the Hardness of Grade 2 Titanium Using Aqueous HCl as Electrolytic Solution | |
| CN103526218A (en) | Aging method of titanium alloy anodic oxidation activation and film peeling two-in-one solution | |
| CN108914184B (en) | A kind of low energy consumption aluminum alloy differential arc oxidation film layer preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |