CN108588790A - The method for oxidation of magnesium and magnesium alloy - Google Patents
The method for oxidation of magnesium and magnesium alloy Download PDFInfo
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- CN108588790A CN108588790A CN201810209774.3A CN201810209774A CN108588790A CN 108588790 A CN108588790 A CN 108588790A CN 201810209774 A CN201810209774 A CN 201810209774A CN 108588790 A CN108588790 A CN 108588790A
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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
- C25D11/30—Anodisation of magnesium or alloys based thereon
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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
- C25D11/36—Phosphatising
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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
- C25D11/38—Chromatising
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Abstract
The invention discloses a kind of magnesium and the method for oxidation of magnesium alloy, including：Step 1: the ammonium phosphate solution of potassium chromate of the configuration comprising 20~30g/L of concentration and a concentration of 20~30g/L is using as electrolyte, and the pH value for adjusting the electrolyte is 5.3~5.7；Step 2: magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, cell reaction is carried out as cathode as anode, stereotype using magnesium or magnesium alloy materials, to be aoxidized to magnesium or magnesium alloy materials, the condition of cell reaction is：5~10V of supply voltage, 0.5~2.5A/dm2 of electric current, 20~25 DEG C of the temperature of electrolyte and 5~15 minutes conduction time obtain the magnesium or magnesium alloy materials with film layer.The present invention solves the caducous technical problem of the easy dusting of film layer appearance that conventional anodes method for oxidation obtains, and the magnesium and Mg alloy surface film layer of acquisition are uniform unglazed black, oxidation film adhesion-tight.
Description
Technical field
The invention belongs to anodizations, are related to the method for oxidation of magnesium and magnesium alloy.
Background technology
Magnesium alloy materials are light-weight particularly suitable in the fields such as space flight, aviation and the manufacture of various vehicles because of its.For
Mitigate product weight, increases product corrosion resistance and expand increasingly in the application of magnesium alloy materials military industry field in recent years.Magnesium
And magnesium-alloy material used due to its be easy to oxidation be corroded, to the more demanding of its surface anticorrosion.Meanwhile magnesium
And magnesium alloy is also commonly used for needing the part of delustring in optical instrument.Above to the demand of magnesium and magnesium alloy materials, it is required to
Oxidation processes are carried out using preceding magnesium and magnesium alloy.Currently, the method for oxidation of conventional magnesium and magnesium alloy generally use potassium bichromate+
Tertiary sodium phosphate is carried out as electrolyte, however the film adhesion that general this method obtains is poor and more crisp, film layer when closing
It is easily broken.Therefore, poor, easy to solve film adhesion there is an urgent need for obtaining a kind of method for oxidation of completely new magnesium and magnesium alloy
The problems such as falling off and rupturing.
Invention content
It is excellent it is an object of the invention to solve at least the above and/or defect, and provide at least to will be described later
Point.
It is a still further object of the present invention to provide a kind of magnesium and the method for oxidation of magnesium alloy, using completely new electrolysis in oxidation
Formula of liquid solves the caducous technical problem of the easy dusting of film layer appearance that conventional anodes method for oxidation obtains, obtains adhesive force
Film layer is without the oxidation film to fall off, the oxidation film outward appearance, the qualification of adhesive strength 100%, especially suitable for optics after strong and closing
Instrument needs the part of delustring.
For this purpose, technical solution provided by the invention is：
The method for oxidation of a kind of magnesium and magnesium alloy, includes the following steps：
Step 1: configuration comprising 20~30g/L of concentration potassium chromate and a concentration of 20~30g/L ammonium phosphate solution with
As electrolyte, and the pH value for adjusting the electrolyte is 5.3~5.7；And
Step 2: magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, with the magnesium or magnesium alloy material
Material carries out cell reaction, to be aoxidized to the magnesium or magnesium alloy materials, the electricity as anode, the stereotype as cathode
Solving the condition reacted is：5~10V of supply voltage, 0.5~2.5A/dm of electric current2, electrolyte 20~25 DEG C of temperature and be powered when
Between 5~15 minutes, obtain the magnesium or magnesium alloy materials with film layer.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, further include after the step 2：
Step 3: to after oxidation magnesium or 80~100 DEG C of magnesium alloy and temperature at sealing of hole 1~3 carried out using organic resin
Minute.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, in the step 2, the magnesium or magnesium alloy are set
Before in the electrolyte, further include：
Blasting treatment is carried out to the magnesium or magnesium alloy using the glass ball of 80~120 mesh.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, when carrying out the blasting treatment, using 100 purposes
Glass ball is handled the magnesium or magnesium alloy under 5200 revs/min of 0.4-0.8MP pressure and sandblasting rate.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, potassium chromate is a concentration of described in the electrolyte
25g/L, a concentration of 25g/L of ammonium phosphate, pH value 5.5.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, in the step 2, the supply voltage initial value
For 6V, voltage increases to 8V after being powered 2~4 minutes, continues with 4~6 minutes, then voltage increases to 10V, is further continued for handling
2~5 minutes.
Preferably, in the method for oxidation of the magnesium and magnesium alloy, in the step 2, by the magnesium or magnesium alloy and
Before stereotype is respectively placed in above-mentioned electrolyte, first time supersound process is carried out to the electrolyte first, it is super for the first time
The condition of sonication is：20~100W of ultrasonic power, supersonic frequency are 5~20KHz, 10~70s of ultrasonic time and electrolyte temperature
5~25 DEG C of degree, then the magnesium or magnesium alloy materials and stereotype are placed into and carry out cell reaction in the electrolyte, and in institute
After stating cell reaction, the active carbon nanoparticles of concentration 40~100g/l are added into the electrolyte, are uniformly mixed, then again into
Second of supersound process of row, the condition of second of supersound process are：50~150W of ultrasonic power, supersonic frequency are 15~30KHz,
20~30 DEG C of 20~80s of ultrasonic time and electrolyte temperature.
The present invention includes at least following advantageous effect：
(1) electrolyte component of the invention is simple, property is stablized, and solves outside the film layer that conventional anodes method for oxidation obtains
See the caducous technical problem of easy dusting；(2) magnesium and Mg alloy surface film layer that the present invention obtains are uniform unglazed black, oxygen
Change film adhesion-tight, through on probation, oxidation film outward appearance, the qualification of adhesive strength 100%；(3) after according to the method oxidation of the present invention
Magnesium and magnesium alloy the part of delustring is needed especially suitable for optical instrument, can be widely used for the magnesium such as space flight, aviation, photoelectric instrument
And the surface anticorrosion of magnesium alloy and the needs of delustring, there is good application value.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific implementation mode
The present invention is described in further detail below, to enable those skilled in the art being capable of evidence with reference to specification word
To implement.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
The present invention provides the method for oxidation of a kind of magnesium and magnesium alloy, includes the following steps：
Step 1: configuration comprising 20~30g/L of concentration potassium chromate and a concentration of 20~30g/L ammonium phosphate solution with
As electrolyte, and the pH value for adjusting the electrolyte is 5.3~5.7；And
Step 2: magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, with the magnesium or magnesium alloy material
Material carries out cell reaction, to be aoxidized to the magnesium or magnesium alloy materials, the electricity as anode, the stereotype as cathode
Solving the condition reacted is：5~10V of supply voltage, 0.5~2.5A/dm of electric current2, electrolyte 20~25 DEG C of temperature and be powered when
Between 5~15 minutes, obtain the magnesium or magnesium alloy materials with film layer.
Electrolyte component of the invention is simple, property is stablized, and solves the film layer appearance that conventional anodes method for oxidation obtains
The caducous technical problem of easy dusting；The magnesium and Mg alloy surface film layer that the present invention obtains are uniform unglazed black, oxidation film
Adhesion-tight, through on probation, oxidation film outward appearance, the qualification of adhesive strength 100%；According to the magnesium and magnesium after the method oxidation of the present invention
Alloy needs the part of delustring especially suitable for optical instrument, can be widely used for the magnesium such as space flight, aviation, photoelectric instrument and magnesium alloy
Surface anticorrosion and delustring needs, have good application value.
In the above scheme, preferably, further including after the step 2：
Step 3: to after oxidation magnesium or 80~100 DEG C of magnesium alloy and temperature at sealing of hole 1~3 carried out using organic resin
Minute.
In one of present invention embodiment, preferably, in the step 2, the magnesium or magnesium alloy are placed in
Before in the electrolyte, further include：
Blasting treatment is carried out to the magnesium or magnesium alloy using the glass ball of 80~120 mesh.
In the above scheme, preferably, when carrying out the blasting treatment, using the glass ball of 100 mesh, in 0.4-
The magnesium or magnesium alloy are handled under 5200 revs/min of 0.8MP pressure and sandblasting rate.
In one of present invention embodiment, preferably, potassium chromate described in the electrolyte is a concentration of
25g/L, a concentration of 25g/L of ammonium phosphate, pH value 5.5.
In one of present invention embodiment, preferably, in the step 2, the supply voltage initial value is
6V, voltage increases to 8V after being powered 2~4 minutes, continues with 4~6 minutes, then voltage increases to 10V, is further continued for processing 2
~5 minutes.
In one of present invention embodiment, preferably, in the step 2, by the magnesium or magnesium alloy and lead
Before plate is respectively placed in above-mentioned electrolyte, first time supersound process is carried out to the electrolyte first, for the first time ultrasound
The condition of processing is：20~100W of ultrasonic power, supersonic frequency are 5~20KHz, 10~70s of ultrasonic time and electrolyte temperature 5
~25 DEG C, then the magnesium or magnesium alloy materials and stereotype are placed into and carry out cell reaction in the electrolyte, and in described
After cell reaction, the active carbon nanoparticles of 40~100g/l of concentration are added into the electrolyte, is uniformly mixed, then carries out again
Second of supersound process, the condition of second of supersound process are：50~150W of ultrasonic power, supersonic frequency are 15~30KHz, are surpassed
20~30 DEG C of 20~80s of sound time and electrolyte temperature.It is ultrasonically treated by first time so that oxonium ion is generated in electrolyte,
To promote cell reaction to carry out.It is electrolysed after projection again, active carbon nanoparticles is added and form suspension, carry out second later and surpass
Sonication offsets the residual tension that anodic oxidation introduces, reduces the fatigue damage of magnesium alloy, and the metal for repairing magnesium alloy is special
Property, extend its service life.
To make those skilled in the art more fully understand the present invention, following embodiment is now provided and is illustrated：
<Embodiment 1>
Potassium chromate, ammonium phosphate are dissolved in distilled water, are configured to containing the electrolysis that potassium chromate is 25g/L, ammonium phosphate is 25g/L
Liquid, it is 5.5 to be adjusted to pH value.After magnesium and magnesium alloy deoil, using 100 mesh glass balls, then the sandblasting under 0.6MP pressure will
It is placed in electrolyte, carries out anodic oxidation, and setting electric current is 1.5A/dm2, temperature is 22.5 DEG C, and power supply initial voltage is 6V,
Become 8V after 3min, become 10V after 5min, reprocesses 3min, after, through washing, drying, after the assay was approved, it is in temperature
90 DEG C, the time is to carry out sealing of hole under 2 minutes, is then packed.
<Embodiment 2>
Potassium chromate, ammonium phosphate are dissolved in distilled water, are configured to containing the electrolysis that potassium chromate is 20g/L, ammonium phosphate is 20g/L
Liquid, it is 5.5 to adjust pH value.After magnesium and magnesium alloy deoil, using 100 mesh glass balls, the sandblasting under 0.4MP pressure, then by it
It is placed in electrolyte, carries out anodic oxidation, setting electric current is 0.5A/dm2, temperature is 20 DEG C, and power supply initial voltage is 6V, 3min
After become 8V, become 10V after 5min, reprocess 3min, after, be 80 DEG C in temperature after the assay was approved through washing, drying,
Time is to carry out sealing of hole under 1 minute, is then packed.
<Embodiment 3>
Potassium chromate, ammonium phosphate are dissolved in distilled water, are configured to containing the electrolysis that potassium chromate is 30g/L, ammonium phosphate is 30g/L
Liquid, it is 5.5 to adjust pH value.After magnesium and magnesium alloy deoil, using 100 mesh glass balls, the sandblasting under 0.8MP pressure, then by it
It is placed in electrolyte, carries out anodic oxidation, setting electric current is 2.5A/dm2, temperature is 25 DEG C, and power supply initial voltage is 6V, 3min
After become 8V, become 10V after 5min, reprocess 3min, after, be 100 in temperature after the assay was approved through washing, drying
DEG C, the time is to carry out sealing of hole under 3 minutes, is then packed.
<Embodiment 4>
The present embodiment provides magnesium and the method for oxidation of magnesium alloy, include the following steps：
Step 1: the ammonium phosphate solution of potassium chromate of the configuration comprising concentration 20g/L and a concentration of 20g/L are using as electrolysis
Liquid, and the pH value for adjusting the electrolyte is 5.3；
Step 2: the glass ball using 80 mesh carries out blasting treatment to the magnesium or magnesium alloy.Then to the electrolyte
First time supersound process is carried out, the condition being ultrasonically treated for the first time is：Ultrasonic power 20W, supersonic frequency 5KHz, ultrasonic time
5 DEG C of 10s and electrolyte temperature.
Magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, using the magnesium or magnesium alloy materials as sun
Pole, the stereotype carry out cell reaction, to be aoxidized to the magnesium or magnesium alloy materials, the cell reaction as cathode
Condition is：Supply voltage 5V, electric current 0.5A/dm2, electrolyte 20 DEG C of temperature and 5 minutes conduction time, obtain with film layer
Magnesium or magnesium alloy materials.And after the cell reaction, the active carbon nanoparticles of concentration 40g/l are added into the electrolyte,
It is uniformly mixed, then carries out second of supersound process again, the condition of second of supersound process is：Ultrasonic power 50W, supersonic frequency
For 15KHz, 20 DEG C of ultrasonic time 20s and electrolyte temperature.
Wherein, when carrying out the blasting treatment, using the glass ball of 100 mesh, in 0.4MP pressure and sandblasting rate 5200
The magnesium or magnesium alloy are handled under rev/min.
Step 3: to after oxidation magnesium or 80 DEG C of magnesium alloy and temperature at sealing of hole carried out 1 minute using organic resin.
<Embodiment 5>
The present embodiment provides a kind of magnesium and the method for oxidation of magnesium alloy, include the following steps：
Step 1: the ammonium phosphate solution of potassium chromate of the configuration comprising concentration 25g/L and a concentration of 25g/L are using as electrolysis
Liquid, and the pH value for adjusting the electrolyte is 5.5；
Step 2: the glass ball using 100 mesh carries out blasting treatment to the magnesium or magnesium alloy.Then to the electrolyte
First time supersound process is carried out, the condition being ultrasonically treated for the first time is：Ultrasonic power 60W, supersonic frequency 12.5KHz, ultrasound
15 DEG C of time 40s and electrolyte temperature.
Magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, using the magnesium or magnesium alloy materials as sun
Pole, the stereotype carry out cell reaction, to be aoxidized to the magnesium or magnesium alloy materials, the cell reaction as cathode
Condition is：22.5 DEG C of the temperature of electrolyte, supply voltage initial value are 6V, and voltage increases to 8V after being powered 2~4 minutes, continues
Processing 4~6 minutes, then voltage increases to 10V, is further continued for processing 2~5 minutes.Obtain the magnesium or magnesium alloy material with film layer
Material.And after the cell reaction, the active carbon nanoparticles of concentration 70g/l are added into the electrolyte, are uniformly mixed, then
Second of supersound process is carried out again, and the condition of second of supersound process is：Ultrasonic power 100W, supersonic frequency 17KHz, ultrasound
25 DEG C of time 50s and electrolyte temperature.
Wherein, when carrying out the blasting treatment, using the glass ball of 100 mesh, in 0.6MP pressure and sandblasting rate 5200
The magnesium or magnesium alloy are handled under rev/min.
Step 3: to after oxidation magnesium or 90 DEG C of magnesium alloy and temperature at sealing of hole carried out 2 minutes using organic resin.
<Embodiment 6>
The present embodiment provides a kind of magnesium and the method for oxidation of magnesium alloy, include the following steps：
Step 1: the ammonium phosphate solution of potassium chromate of the configuration comprising concentration 30g/L and a concentration of 30g/L are using as electrolysis
Liquid, and the pH value for adjusting the electrolyte is 5.7；
Step 2: the glass ball using 120 mesh carries out blasting treatment to the magnesium or magnesium alloy.Then to the electrolyte
First time supersound process is carried out, the condition being ultrasonically treated for the first time is：Ultrasonic power 100W, supersonic frequency 20KHz, when ultrasonic
Between 25 DEG C of 70s and electrolyte temperature,
Magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, using the magnesium or magnesium alloy materials as sun
Pole, the stereotype carry out cell reaction, to be aoxidized to the magnesium or magnesium alloy materials, the cell reaction as cathode
Condition is：Supply voltage 10V, electric current 2.5A/dm2, electrolyte 25 DEG C of temperature and 15 minutes conduction time, obtain carry film layer
Magnesium or magnesium alloy materials.And after the cell reaction, the nano active of concentration 100g/l is added into the electrolyte
Charcoal is uniformly mixed, then carries out second of supersound process again, and the condition of second of supersound process is：Ultrasonic power 150W, ultrasound
Frequency is 30 DEG C of 30KHz, ultrasonic time 80s and electrolyte temperature.
Wherein, when carrying out the blasting treatment, using the glass ball of 100 mesh, in 0.8MP pressure and sandblasting rate 5200
The magnesium or magnesium alloy are handled under rev/min.
Step 3: to after oxidation magnesium or 100 DEG C of magnesium alloy and temperature at sealing of hole carried out 1~3 minute using organic resin.
In order to illustrate the effect of the present invention, it is as follows that inventor provides comparative experiments：
<Comparative example 1>
Change electrolyte into potassium bichromate+tertiary sodium phosphate, other methods are same as Example 1, and oxide layer is prepared.
By at film outward appearance and adhesion effect to embodiment and comparative example to product verify：
1 properties of oxide-film of table
| At film outward appearance | Adhesion effect | |
| Embodiment 1 | Smooth, uniform, fine and close black oxide film | Adhesive strength 100% is qualified |
| Embodiment 2 | Uniformly, fine and close black oxide film | Adhesive strength 100% is qualified |
| Embodiment 3 | Uniformly, fine and close black oxide film | Adhesive strength 100% is qualified |
| Embodiment 4 | Smooth, uniform, fine and close black oxide film | Adhesive strength 100% is qualified |
| Embodiment 5 | Smooth, uniform, fine and close black oxide film | Adhesive strength 100% is qualified |
| Embodiment 6 | Smooth, uniform, fine and close black oxide film | Adhesive strength 100% is qualified |
| Comparative example 1 | Uniformly, roughish black oxide film | Film adhesion is poor, is easily broken |
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (7)
1. the method for oxidation of a kind of magnesium and magnesium alloy, which is characterized in that include the following steps：
Step 1: configuration comprising 20~30g/L of concentration potassium chromate and a concentration of 20~30g/L ammonium phosphate solution using as
Electrolyte, and the pH value for adjusting the electrolyte is 5.3~5.7；And
Step 2: magnesium or magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, made with the magnesium or magnesium alloy materials
Cell reaction is carried out as cathode for anode, the stereotype, to be aoxidized to the magnesium or magnesium alloy materials, the electrolysis is anti-
The condition answered is：5~10V of supply voltage, 0.5~2.5A/dm of electric current2, electrolyte 20~25 DEG C of temperature and conduction time 5~
15 minutes, obtain the magnesium or magnesium alloy materials with film layer.
2. the method for oxidation of magnesium as described in claim 1 and magnesium alloy, which is characterized in that also wrapped after the step 2
It includes：
Step 3: to after oxidation magnesium or 80~100 DEG C of magnesium alloy and temperature at sealing of hole carried out 1~3 minute using organic resin.
3. the method for oxidation of magnesium as described in claim 1 and magnesium alloy, which is characterized in that in the step 2, by the magnesium
Or before magnesium alloy is placed in the electrolyte, further include：
Blasting treatment is carried out to the magnesium or magnesium alloy using the glass ball of 80~120 mesh.
4. the method for oxidation of magnesium as claimed in claim 3 and magnesium alloy, which is characterized in that when carrying out the blasting treatment, adopt
With the glass ball of 100 mesh, under 5200 revs/min of 0.4-0.8MP pressure and sandblasting rate to the magnesium or magnesium alloy at
Reason.
5. the method for oxidation of magnesium as described in claim 1 and magnesium alloy, which is characterized in that potassium chromate described in the electrolyte
A concentration of 25g/L, a concentration of 25g/L of ammonium phosphate, pH value 5.5.
6. the method for oxidation of magnesium as described in claim 1 and magnesium alloy, which is characterized in that in the step 2, the power supply
Initial Voltage Value is 6V, and voltage increases to 8V after being powered 2~4 minutes, continues with 4~6 minutes, and then voltage increases to 10V,
It is further continued for processing 2~5 minutes.
7. the method for oxidation of magnesium as described in claim 1 and magnesium alloy, which is characterized in that in the step 2, by the magnesium
Or before magnesium alloy and stereotype are respectively placed in above-mentioned electrolyte, the electrolyte is carried out at ultrasound for the first time first
Reason, the condition being ultrasonically treated for the first time are：20~100W of ultrasonic power, supersonic frequency are 5~20KHz, 10~70s of ultrasonic time
With 5~25 DEG C of electrolyte temperature, then the magnesium or magnesium alloy materials and stereotype are placed into the electrolyte and are electrolysed
Reaction, and after the cell reaction, the active carbon nanoparticles of 40~100g/l of concentration are added into the electrolyte, mixing is equal
It is even, second of supersound process is then carried out again, and the condition of second of supersound process is：50~150W of ultrasonic power, supersonic frequency
For 15~30KHz, 20~30 DEG C of 20~80s of ultrasonic time and electrolyte temperature.
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|---|---|---|---|---|
| CN1405361A (en) * | 2002-10-31 | 2003-03-26 | 上海交通大学 | Magnesium alloy ultrasonic anode oxidation method |
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| CN105908242A (en) * | 2016-05-31 | 2016-08-31 | 刘洪建 | Surface treatment method for magnesium alloy |
| CN106702461A (en) * | 2016-12-28 | 2017-05-24 | 佛山市铠斯钛科技有限公司 | Titanium-magnesium alloy anodic oxidation solution |
| CN108221027A (en) * | 2018-03-29 | 2018-06-29 | 山西银光华盛镁业股份有限公司 | A kind of true black anodizing method of magnesium alloy |
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2018
- 2018-03-14 CN CN201810209774.3A patent/CN108588790B/en active Active
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|---|---|---|---|---|
| CN1405361A (en) * | 2002-10-31 | 2003-03-26 | 上海交通大学 | Magnesium alloy ultrasonic anode oxidation method |
| CN105297103A (en) * | 2015-11-17 | 2016-02-03 | 惠州市泽宏科技有限公司 | Ceramic anodizing solution and ceramic anodizing process |
| CN105908242A (en) * | 2016-05-31 | 2016-08-31 | 刘洪建 | Surface treatment method for magnesium alloy |
| CN106702461A (en) * | 2016-12-28 | 2017-05-24 | 佛山市铠斯钛科技有限公司 | Titanium-magnesium alloy anodic oxidation solution |
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| A. K. SHARMA ET AL: "Galvanic black anodizing on Mg-Li alloys", 《JOURNAL OF APPLIED ELECTROCHEMISTRY》 * |
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