CN102140665A - AM60 magnesium alloy surface thin layer thickness uniformity treatment method - Google Patents
AM60 magnesium alloy surface thin layer thickness uniformity treatment method Download PDFInfo
- Publication number
- CN102140665A CN102140665A CN 201110101664 CN201110101664A CN102140665A CN 102140665 A CN102140665 A CN 102140665A CN 201110101664 CN201110101664 CN 201110101664 CN 201110101664 A CN201110101664 A CN 201110101664A CN 102140665 A CN102140665 A CN 102140665A
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- treatment
- thin layer
- concentration
- oxygen
- 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.)
- Granted
Links
Images
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses an AM60 magnesium alloy surface thin layer thickness uniformity treatment method, and belongs to the field of AM60 magnesium alloy surface thin layer thickness uniformity treatment research. On the basis of an alternating current plasma microarc oxidation treatment method, oxygen is sprayed into treating fluid to improve the uniformity of the reaction between the treating fluid and the magnesium alloy, and the AM60 magnesium alloy is subjected to alternating current plasma microarc oxidation surface treatment for 52 to 70 seconds under the conditions that the concentration of potassium fluoride is 903-905g/L, the concentration of potassium hydroxide is 365-367g/L, the concentration of sodium silicate is 118-120g/L, the power frequency alternating current voltage is 65-67V and 0.006-0.009L of oxygen is sprayed into the treating fluid per second, so that a thin protective layer with uniform thickness of 8-14 mu m is formed on the surface of the AM60 magnesium alloy.
Description
Technical field
The present invention relates to a kind of AM60 Mg alloy surface thickness of thin layer even processing method.
Background technology
Publication number: CN1900383A; denomination of invention: on " a kind of AZ91 surface treatment method of Mg alloy "; set forth AZ91 magnesium alloy ac plasma differential arc oxidation treatment method; promptly; employing contains the treatment solution of Potassium monofluoride and potassium hydroxide; power frequency AC by voltate regulator control provides electric energy; in cycle, utilize the yin, yang ion in the treatment solution to carry out the TRANSIENT HIGH TEMPERATURE of plasma micro-arc discharge generation at the AZ91 Mg alloy surface at each power frequency ac voltage at AZ91 Mg alloy surface formation protective layer.Utilize this ac plasma differential arc oxidation treatment method; disclosed Potassium monofluoride concentration is that 500～979g/L, concentration of potassium hydroxide are that 300～349g/L, power frequency ac voltage are under 68～80V condition in patent CN1900383A; can be in 60～90 seconds, make that AZ91 Mg alloy surface growth in situ goes out that 15～30 μ m are thick, homogeneous microstructure and complete protective layer.
The AM60 magnesium alloy is the magnesium alloy that contains aluminium 6wt%, contains manganese 0.27wt%; under the disclosed treatment condition of CN1900383A patented method; can make in 80～110 seconds that AM60 Mg alloy surface growth in situ goes out that 15～30 μ m are thick, homogeneous microstructure and complete protective layer; but; the thin layer of mean thickness below 15 μ m that adopts the CN1900383A patented method to form at the AM60 Mg alloy surface; exist comparatively serious became uneven to spare phenomenon, its corrosion resistance nature is relatively poor.
For the sealer of AM60 magnesium alloy, less especially when 15 μ m are following at mean thickness, its thickness is even more, and corrosion resistance nature is good more, and therefore, during less than 15 μ m, AM60 Mg alloy surface thickness of thin layer is even more good more at mean thickness.
Summary of the invention
Technical problem to be solved by this invention is, overcome the deficiency of existing ac plasma differential arc oxidation treatment method " the skin layer thickness evenness is poor ", a kind of ac plasma differential arc oxidation treatment method that can form the uniform thin layer of thickness at the AM60 Mg alloy surface is provided, further improves the thickness evenness of AM60 Mg alloy surface thin layer.
The technical solution adopted for the present invention to solve the technical problems is: on ac plasma differential arc oxidation treatment method basis, in treatment solution, spray into oxygen to improve treatment solution and magnesium alloy reaction uniformity, and be that 903～905g/L, concentration of potassium hydroxide are that 365～367g/L, sodium silicate silicate are that 118～120g/L, power frequency ac voltage are that 65～67V, every liter of treatment solution oxygen straying quatity are under 0.006～0.009L/s condition in Potassium monofluoride concentration, the AM60 magnesium alloy is carried out 52～70 seconds ac plasma Microarc Oxidation Surface Treatment.
The invention has the beneficial effects as follows: for the sealer of magnesium alloy, want to improve the homogeneity of its thickness, must strengthen treatment solution and magnesium alloy are reacted inhomogeneity control.When magnesium alloy is carried out surface treatment, because the chemical ingredients of Mg alloy surface is different, therefore, under the effect of impressed electromotive force, ion in the treatment solution will converge to the little Mg alloy surface place of energy consumption, cause the inhomogeneous of surface reaction, thereby the became uneven that causes sealer, if when carrying out surface treatment, by in treatment solution, spraying into oxygen treatment solution is stirred, then the ion in the treatment solution will be dispersed in the treatment solution relatively equably, thereby can avoid a large amount of ions in the treatment solution to converge phenomenon to the little Mg alloy surface place of energy consumption, and then the homogeneity of Mg alloy surface protective layer thickness is improved; In addition; the high temperature that surface reaction produces can cause the oxygen that sprays in the treatment solution to form a large amount of oxygen plasmas; these oxygen plasmas have poising action to the reaction of Mg alloy surface; will further improve the homogeneity of surface reaction; the present invention utilizes the stirring action of the oxygen of each surface treatment parameter optimization combination back formation and the poising action that oxygen plasma reacts Mg alloy surface; further improve treatment solution and magnesium alloy reaction uniformity, thereby reached the inhomogeneity purpose of raising Mg alloy surface protective layer thickness.Utilize the present invention, the AM60 magnesium alloy is carried out surface treatment, can in 52～70 seconds, obtain the thick protection thin layer of uniform 8～14 μ m of thickness.
Description of drawings
Fig. 1 carries out the front view of surface processing device to the AM60 magnesium alloy for the inventive method.
Among the figure, power frequency AC 1, lead 2, voltate regulator 3, lead 4, AM60 magnesium alloy workpiece 5, treatment solution 6, oxygen jet 7, oxygen pump 8, treatment trough 9.
Fig. 2 is the microtexture at the processing interface of adopting the inventive method that the AM60 magnesium alloy is carried out to obtain after the surface treatment.
Embodiment
It is as follows in conjunction with the accompanying drawings the inventive method to be carried out specifying of surface processing device to the AM60 magnesium alloy:
The AM60 magnesium alloy is carried out surface processing device mainly to be comprised: power frequency AC 1, voltate regulator 3, oxygen jet 7, oxygen pump 8, treatment trough 9.
The input terminus of voltate regulator 3 links to each other by lead 2 with power frequency AC 1, and the output terminal of voltate regulator 2 links to each other by lead 4 with AM60 magnesium alloy workpiece 5.Oxygen jet 7 adopts the teflon seal mode of connection to be fixed on the bottom of treatment trough 9, and the one end stretches in the treatment solution 6, and the other end links to each other with oxygen pump 8.
Power frequency AC 1 is an industry power frequency AC commonly used.Voltate regulator 3 can adopt the Mg alloy surface of buying on the market that can provide to handle the voltate regulator of any model of required electric energy.Oxygen jet 7 is a tetrafluoroethylene with the material of treatment trough 9.AM60 magnesium alloy workpiece 5 need carry out oil removing, polishing and cleaning pre-treatment.
A kind of AM60 Mg alloy surface thickness of thin layer even processing method, adopt the ac plasma differential arc oxidation treatment method that the AM60 magnesium alloy is carried out surface treatment, in treatment solution, spray into oxygen carrying out surface treatment preceding 1 minute and 30 seconds beginning, and be that 903～905g/L, concentration of potassium hydroxide are that 365～367g/L, sodium silicate silicate are that 118～120g/L, power frequency ac voltage are that 65～67V, every liter of treatment solution oxygen straying quatity are under 0.006～0.009L/s condition in Potassium monofluoride concentration, the AM60 magnesium alloy is carried out 52～70 seconds ac plasma Microarc Oxidation Surface Treatment.
Embodiment one, in Potassium monofluoride concentration is that 903g/L, concentration of potassium hydroxide are that 365g/L, sodium silicate silicate are that 118g/L, power frequency ac voltage are that 65V, every liter of treatment solution oxygen straying quatity are under the 0.006L/s condition, after the ac plasma Microarc Oxidation Surface Treatment 52 seconds, can form the thick thin layer of the uniform 8 μ m of thickness at the AM60 magnesium alloy work-piece surface.
Embodiment two, in Potassium monofluoride concentration is that 903g/L, concentration of potassium hydroxide are that 367g/L, sodium silicate silicate are that 120g/L, power frequency ac voltage are that 67V, every liter of treatment solution oxygen straying quatity are under the 0.006L/s condition, after the ac plasma Microarc Oxidation Surface Treatment 52 seconds, can form the thick thin layer of the uniform 10 μ m of thickness at the AM60 magnesium alloy work-piece surface.
Embodiment three, in Potassium monofluoride concentration is that 905g/L, concentration of potassium hydroxide are that 365g/L, sodium silicate silicate are that 118g/L, power frequency ac voltage are that 65V, every liter of treatment solution oxygen straying quatity are under the 0.009L/s condition, after the ac plasma Microarc Oxidation Surface Treatment 70 seconds, can form the thick thin layer of the uniform 13 μ m of thickness at the AM60 magnesium alloy work-piece surface.
Embodiment four, in Potassium monofluoride concentration is that 905g/L, concentration of potassium hydroxide are that 367g/L, sodium silicate silicate are that 120g/L, power frequency ac voltage are that 67V, every liter of treatment solution oxygen straying quatity are under the 0.009L/s condition, after the ac plasma Microarc Oxidation Surface Treatment 70 seconds, can form the thick thin layer of the uniform 14 μ m of thickness at the AM60 magnesium alloy work-piece surface.
Embodiment five, in Potassium monofluoride concentration is that 903g/L, concentration of potassium hydroxide are that 365g/L, sodium silicate silicate are that 120g/L, power frequency ac voltage are that 67V, every liter of treatment solution oxygen straying quatity are under the 0.009L/s condition, after the ac plasma Microarc Oxidation Surface Treatment 70 seconds, can form the thick thin layer of the uniform 12 μ m of thickness at the AM60 magnesium alloy work-piece surface.
As seen; in Potassium monofluoride concentration is that 903～905g/L, concentration of potassium hydroxide are that 365～367g/L, sodium silicate silicate are that 118～120g/L, power frequency ac voltage are that 65～67V, every liter of treatment solution oxygen straying quatity are under 0.006～0.009L/s condition; the AM60 magnesium alloy is carried out 52～70 seconds ac plasma Microarc Oxidation Surface Treatment, can form the thick protection thin layer of uniform 8～14 μ m of thickness at the AM60 Mg alloy surface.
Accompanying drawing 2 is the microtexture at the processing interface of adopting the inventive method that the AM60 magnesium alloy is carried out to obtain after the surface treatment.The zone that the figure middle and upper part is light color is a protective layer, and it is the AM60 magnesium alloy substrate that the bottom is dark zone, and as seen, the thickness of protection thin layer is very even.As seen, the present invention can form thickness at the AM60 Mg alloy surface and protect thin layer uniformly.
Claims (1)
1. AM60 Mg alloy surface thickness of thin layer even processing method, adopt the ac plasma differential arc oxidation treatment method that the AM60 magnesium alloy is carried out surface treatment, it is characterized in that, in treatment solution, spray into oxygen carrying out surface treatment preceding 1 minute and 30 seconds beginning, and be 903～905g/L in Potassium monofluoride concentration, concentration of potassium hydroxide is 365～367g/L, sodium silicate silicate is 118～120g/L, power frequency ac voltage is 65～67V, every liter of treatment solution oxygen straying quatity is under 0.006～0.009L/s condition, the AM60 magnesium alloy is carried out 52～70 seconds ac plasma Microarc Oxidation Surface Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101016643A CN102140665B (en) | 2011-04-22 | 2011-04-22 | AM60 magnesium alloy surface thin layer thickness uniformity treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101016643A CN102140665B (en) | 2011-04-22 | 2011-04-22 | AM60 magnesium alloy surface thin layer thickness uniformity treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140665A true CN102140665A (en) | 2011-08-03 |
| CN102140665B CN102140665B (en) | 2012-07-11 |
Family
ID=44408452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101016643A Expired - Fee Related CN102140665B (en) | 2011-04-22 | 2011-04-22 | AM60 magnesium alloy surface thin layer thickness uniformity treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102140665B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081658A1 (en) * | 2000-04-26 | 2001-11-01 | Jacques Beauvir | Oxidising electrolytic method for obtaining a ceramic coating at the surface of a metal |
| CN1405361A (en) * | 2002-10-31 | 2003-03-26 | 上海交通大学 | Magnesium alloy ultrasonic anode oxidation method |
| CN1900383A (en) * | 2006-07-05 | 2007-01-24 | 北京交通大学 | AZ91 magnesium alloy surface treating method |
-
2011
- 2011-04-22 CN CN2011101016643A patent/CN102140665B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081658A1 (en) * | 2000-04-26 | 2001-11-01 | Jacques Beauvir | Oxidising electrolytic method for obtaining a ceramic coating at the surface of a metal |
| CN1405361A (en) * | 2002-10-31 | 2003-03-26 | 上海交通大学 | Magnesium alloy ultrasonic anode oxidation method |
| CN1900383A (en) * | 2006-07-05 | 2007-01-24 | 北京交通大学 | AZ91 magnesium alloy surface treating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102140665B (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100570016C (en) | A kind of AZ91 surface treatment method of Mg alloy | |
| CN101831684B (en) | Microarc-oxidation electrophoretic-coating composite processing method of surface of Q 235 steel part | |
| CN102268708B (en) | Microarc oxidation processing method and device | |
| CN103320831A (en) | Anode oxidation dyeing method for metal work-piece | |
| CN202705472U (en) | Online phosphating device for metal wires | |
| CN103184498B (en) | Roller brush type differential arc oxidation treatment method and device | |
| CN204198894U (en) | A kind of bore is less than the internal tank rotary electrolysis burnishing device of barrel cage diameter | |
| CN106011852B (en) | A kind of preparation method of austenite stainless steel surface high entropy alloy coating | |
| CN102140665B (en) | AM60 magnesium alloy surface thin layer thickness uniformity treatment method | |
| CN102181906B (en) | Method for processing thin layer on surface of MB8 magnesium alloy | |
| CN102181907B (en) | Method for treating thin layer on surface of AM60 magnesium alloy | |
| CN102181909B (en) | Thin layer treatment method for surface of AZ91 magnesium alloy | |
| CN100554531C (en) | A kind of MB8 surface treatment method of Mg alloy | |
| CN102181910B (en) | Thin-layer thickness uniform treatment method for surface of MB8 magnesium alloy | |
| CN202610379U (en) | Continuous electrolytic polishing device for nickel tungsten alloy strip | |
| CN102140664B (en) | Surface thin layer thickness equalizing method of AZ91 magnesium alloy | |
| CN102181905B (en) | Method for processing thick protection layer on surface of AM60 magnesium alloy | |
| CN102181908B (en) | Method for treating thick protective layer on surface of AZ91 magnesium alloy | |
| CN102732867A (en) | Online phosphatization apparatus of metal wire rods | |
| CN102127789B (en) | AM60 magnesium alloy surface heavy-layer treatment method | |
| CN203159734U (en) | Equipment for producing galvanization cutting wires | |
| CN102140663B (en) | MB8 magnesium alloy surface thick protective layer treatment method | |
| CN102127791B (en) | Method for treating thick layer on surface of AZ91 magnesium alloy | |
| CN102127790B (en) | Surface thick-layer treatment method of magnesium alloy MB8 | |
| CN203346510U (en) | Paralleling-type multi-head electrolytic polishing gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20130422 |