CN103668393B - The preparation method of magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating - Google Patents
The preparation method of magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating Download PDFInfo
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Abstract
The invention discloses a kind of preparation method of magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating, belong to technical field of magnesium alloy surface treatment.First the method is carried out differential arc oxidation to magnesium alloy matrix surface and is formed porous ceramic layer, then aqueous coating is formed to porous ceramic layer surface spraying modified aqueous paint, thus form the compound protective coating be made up of porous ceramic layer and aqueous coating at magnesium alloy matrix surface.The present invention has the features such as bonding force is good, compactness is good, high rigidity, height is anti-corrosion, high abrasion in the Multilayer composite protection coat that Mg alloy surface is formed, preparation method is simple, convenient, environmental protection, be the desirable compound protective coating of magnesium alloy application, meet the requirement of shelter of magnesium-alloy material in severe rugged environment.
Description
Technical field
The present invention relates to field of metal surface treatment technology, be specifically related to a kind of preparation method of magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating.
Background technology
Magnesium alloy, as the very important metallic substance of one, is the minimum metal of structural metallic materials Midst density, compared with aluminium alloy, Young's modulus is large, good heat dissipation, and shock absorbing is good, withstand shocks the features such as loading capacity is large, can meet the requirement of household electrical appliance, communication electron device and automotive light weight technology.In addition, magnesium alloy also has that specific tenacity is high, specific rigidity is high, damping and amortization is good, the good and damping high-performance such as good of thermal conductivity, as the substitute of iron and steel, aluminium, plastic or other material, be with a wide range of applications in fields such as automotive industry, aerospace industry and electronic industries.But up to now, between its application potential and reality, still there is huge contrast, this is because magnesium is extremely active metal, and Standard Electrode Potentials is-2.36V (vs.SCE), and the electromotive force in typical media is also all very low.Because the current potential of magnesium alloy is low; thermodynamic stability is poor; be easy to oxidized in atmosphere; generate loose, that protective capability is very poor oxide film; cause the corrosion resistance of magnesium alloy poor; which results in magnesium alloy and all very serious corrosion will occur in the air, extra large water and soil of humidity, what this was serious hinders the application of magnesium alloy in various fields.In addition, the chemically reactive of magnesium alloy is higher, higher to the integrity of painting/coating, resistant to mechanical damage Capability Requirement, this just requires the integrity of protective layer (painting/coating), resistant to mechanical damage ability must reach higher level, and existing painting/coating technology is all difficult to practical requirement.Therefore the high firmly anti-corrosion protective layer new technology of exploitation is the key point promoting magnesium alloy application.
At present, differential arc oxidation is the most promising technique means of realizing this goal.It is a kind of under thermochemistry, plasma chemistry and electrochemistry acting in conjunction, in the technology of metallic surface growth in situ pottery oxide film, has the advantages such as simple, the easy to operate or oxide film bonding force of technique, solidity to corrosion, hardness is better.But magnesium alloy micro-arc oxidization ceramic coating is a kind of loose microvoid structure, causes its barrier propterty limited.
And generally only play ornamental effect at the common coating of Mg alloy surface direct spraying.Although it is simply easy to operate, technique is enriched, if do not have strictly suitable pretreatment procedure, bonding force and the erosion resistance of compound coating can not be guaranteed.Really there is good combination power, erosion resistance, wear resistance and free of contamination organic coating technique and not yet have sufficient application verification.
Obviously, the development of above-mentioned single magnesium alloy surface treatment all has obvious limitation, is difficult to meet the higher wear Protection needs of actual magnesium alloy.
Summary of the invention
The present invention is directed to the defect of the single process for treating surface of current magnesium alloy, there is provided that a kind of to prepare bonding force at Mg alloy surface good and have the preparation method of the magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating of high corrosion resistance, meet the requirement of shelter of magnesium-alloy material in severe rugged environment.Raw material sources of the present invention are extensive, with low cost; Preparation technology can at room temperature carry out, and working method is simply efficient; The modified aqueous paint low toxic and environment-friendly used, stable performance, is suitable for standing storage.
Technical solution of the present invention is as follows:
A kind of preparation method of magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating, first the method is carried out differential arc oxidation to magnesium alloy matrix surface and is formed porous ceramic layer, then aqueous coating is formed to porous ceramic layer surface spraying modified aqueous paint, thus form the compound protective coating be made up of porous ceramic layer and aqueous coating at magnesium alloy matrix surface.Specifically comprise the steps:
(1) differential arc oxidation
First magnesium alloy substrate is carried out polishing, polishing, except wet goods pre-treatment, to loosen oxide film and impurity to remove matrix surface.Then magnesium alloy substrate (as anode) is put into electrolytic solution, adopt high voltage pulse mode to carry out differential arc oxidation to matrix.The electrolytic solution of differential arc oxidation is: sodium hydroxide 2 ~ 10g/L, water glass 5 ~ 20g/L, and all the other are water; Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 100 ~ 2000Hz, and current density is 2 ~ 10A/dm
2, the differential arc oxidation time is 30 ~ 60min, and differential arc oxidation temperature is 10 ~ 50 DEG C.Prepared oxide film and porous ceramic layer, main component is Magnesium Silicate q-agent, and porous ceramics layer thickness is 10 ~ 25 μm, and porosity is 20% ~ 40%, and aperture is 1 ~ 6 μm.
(2) preparation of modified aqueous paint
Described modified aqueous paint is by 0.1:(10 ~ 20 by nanoassemble permeate agent, common water borne coating and deionized water): after the part by weight mixing of (1 ~ 5), stir 20 ~ 30min, obtained after leaving standstill pin bubble.
Described common water borne coating adopts different types of water-borne coatingss such as water soluble acrylic acid, aqueous polyurethane, water-base epoxy, water-based fluorocarbon, water-based metal baking vanish.
Described nanoassemble permeate agent is by after component miscibility each in following raw material, is hydrolyzed 2 ~ 3 days and obtains to mixed solution clarification under agitation condition; In described raw material, each component is counted by weight, composed as follows:
Described silane mixture liquid is that γ-glycidyl ether oxygen propyl trimethoxy silicane (KH-560) and tetraethyl orthosilicate (TEOS) mix, and the mol ratio of KH-560 and TEOS is (3 ~ 5): (0.2 ~ 1.5); Hydrolyst is the mixed solution of acetic acid and phytic acid, and the mol ratio of acetic acid and phytic acid is (3 ~ 8): (1 ~ 3); Solubility promoter is dehydrated alcohol.
(3) modified aqueous paint spraying (Combined Processing)
Before spraying, in the modified aqueous paint of preparation, first add the solution of aliphatics amine curing agent, make its pH value be 5.5-7 after fully mixing, use after froth breaking of mourning in silence.Aliphatics amine curing agent is diethylenetriamine, and the concentration of aliphatics amine curing agent solution is 10mol/L.
Then surface there is the modified aqueous paint after the magnesium alloy sample spraying adjust ph of porous ceramic layer, form aqueous coating on the surface of porous ceramic layer, thus form good, the high anti-corrosion compound protective coating of the bonding force be made up of porous ceramic layer and aqueous coating at magnesium alloy matrix surface.
Modified aqueous paint spraying parameter is: spray pressure is 1.5 ~ 2.5MPa, and spray distance is 20 ~ 60mm, bake out temperature 150 ~ 180 DEG C, drying time 20 ~ 30min; The thickness of aqueous coating 10 ~ 20 μm.
Described magnesium alloy is AZ91D, AZ31B, ZM5, ZM6, MB5 or magnesium-rare earth Mg-Gd-Y etc.
Advantage of the present invention and beneficial effect as follows:
1, the present invention is used for the nanoassemble permeate agent of modified aqueous paint in preparation process, its hydrolysis environment is high water concentration, the hydrolysis reaction of silane mixture liquid can be accelerated, suppress the polyreaction of silane hydrolyzate intermediate, and the nanoassemble dispersion liquid that final formation is stable.
2, in the present invention, nanoassemble permeate agent can be mixed with modified aqueous paint by a certain percentage with multiple common water borne coating.Be applicable to various magnesium alloy micro-arc oxidization ceramic coating (porous ceramic layer) surface, good compound action can be formed with the micropore on arc differential oxide ceramic layer surface and defect, micropore and defect be played to the effect of " closing "; Make ceramic layer can form good chemical bonding with painting interlayer, improve integral protection performance and the bonding properties of magnesium alloy differential arc oxidation compound coating, the work-ing life of magnesium alloy differential arc oxidation compound coating in actual application can be extended to a certain extent, reduce maintenance cost.
3, raw material sources of the present invention are extensive, with low cost; Preparation technology can at room temperature carry out, and working method is simply efficient; The modified aqueous paint low toxic and environment-friendly used, stable performance, is suitable for standing storage.
4, the present invention is applicable to the magnesium alloy of AZ, ZM, MB and rare earth metal: as AZ91D, AZ31B, ZM5, ZM6, MB5 and Mg-Gd-Y etc.
Accompanying drawing explanation
Fig. 1 is the photo of compound protective coating in neutral salt spray test prepared by the embodiment of the present invention 1.
Fig. 2 is the photo of compound protective coating in neutral salt spray test prepared by comparative example 1.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
Embodiment 1
1. material prepares: after AZ91D magnesium alloy cutting polishing, polishing, use ultrasonic cleaning oil removing in ethanol solution.
2. the configuration of differential arc oxidation: sodium hydroxide 2g/L, water glass 5g/L, all the other are water, and temperature is room temperature.Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 200Hz, and current density is 2A/dm
2, oxidization time is 30min, and oxide thickness is 10 μm, porosity 30%, 1 ~ 4 μm, aperture.
3. the preparation of modification compound coating:
1) configuration of silane mixture liquid.By silane KH-560 and TEOS with mol ratio be n (KH560): n (TEOS)=4:1 ratio mixing stir evenly, obtain silane mixture liquid.
2) configuration of hydrolyst.Be that the ratio of n (acetic acid): n (phytic acid)=3:1 mixes with mol ratio by acetic acid and phytic acid, obtain hydrolyst.
3) configuration of solubility promoter.Dehydrated alcohol selected by solubility promoter.
4) configuration of nanoassemble permeate agent.At ambient temperature, by silane mixture liquid, hydrolyst, solubility promoter and deionized water by after following parts by weight mixing, Keep agitation, hydrolysis 48h, until after mixed solution clarification, ageing is for subsequent use, obtains nanoassemble permeate agent (a liquid).
5) configuration of solidifying agent.Diethylenetriamine selected by solidifying agent, is made into the aqueous solution of 10mol/L, obtains the solution (b liquid) of aliphatics amine curing agent.
6) configuration of modified paint.First b liquid is added in a liquid, a liquid pH is regulated to be 6.0 ± 0.2, then at ambient temperature by the routine 0.1:10:5 mixing in mass ratio of a liquid of adjusted pH value, XGE-401-B water-borne acrylic coatings (Anhui Seagal coating Science and Technology Ltd.) and deionized water, after stirring 30min fully mixes, after leaving standstill 20min pin bubble, obtain modified aqueous paint.
7) the magnesium alloy print of environment-friendly spray coating technique after differential arc oxidation is used to prepare water-based compound coating on the surface.Spraying parameter is: spray pressure is 1.5MPa, and spray distance is 20mm, bake out temperature 150 DEG C, drying time 30min, and the thickness of coating is 10 μm.
The bonding strength of the Mg alloy surface compound protective coating obtained by the present embodiment is 30MPa, Vickers' hardness is maximum reaches Hv280 on surface, resistance to neutral salt spray test reaches more than 380h, wear resistance: coefficient of wear (WI) < 0.8, the photo of its neutral salt spray test as shown in Figure 1.
Comparative example 1
Difference from Example 1 is:
1. material prepares: after AZ91D magnesium alloy cutting polishing, polishing, use ultrasonic cleaning oil removing in ethanol solution.
2. the configuration of differential arc oxidation: sodium hydroxide 2g/L, water glass 5g/L, all the other are water, and temperature is room temperature.Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 200Hz, and current density is 2A/dm
2, oxidization time is 30min, and oxide thickness is 10 μm, porosity 30%, 1 ~ 4 μm, aperture.
3. the preparation of common compound coating:
1) configuration of coating.At ambient temperature by XGE-401-B water-borne acrylic coatings (Anhui Seagal coating Science and Technology Ltd.) and deionized water routine 10:5 mixing in mass ratio, after stirring 30min fully mixes, after leaving standstill 20min pin bubble, obtain common water borne coating.
2) the magnesium alloy print of environment-friendly spray coating technique after differential arc oxidation is used to prepare water-based compound coating on the surface.Spraying parameter is: spray pressure is 1.5MPa, and spray distance is 20mm, bake out temperature 150 DEG C, drying time 30min, and the thickness of coating is 10 μm.
The bonding strength of the Mg alloy surface compound protective coating obtained by this comparative example is 20MPa, Vickers' hardness is maximum reaches Hv240 on surface, resistance to neutral salt spray test reaches more than 240h, wear resistance: coefficient of wear (WI) <1.0, as shown in Figure 2, as can be seen from Figure, just there is obvious bubbling phenomenon at neutral salt spray about 240h in print to the photo of its neutral salt spray test, when 360h, bubbling phenomenon is aggravated further.
Embodiment 2
1. material prepares: after AZ31B magnesium alloy cutting polishing, polishing, use ultrasonic cleaning oil removing in ethanol solution.
2. the configuration of differential arc oxidation: sodium hydroxide 5g/L, water glass 5g/L, all the other are water, and temperature is room temperature.Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 350Hz, and current density is 2A/dm
2, oxidization time is 40min, and oxide thickness is 15 μm, porosity 28%, 2 ~ 5 μm, aperture.
3. the preparation of modification compound coating:
1) configuration of silane mixture liquid.By silane KH-560 and TEOS with mol ratio be n (KH560): n (TEOS)=5:1 ratio mixing stir evenly, obtain silane mixture liquid.
2) configuration of hydrolyst.By acetic acid and phytic acid with mol ratio be n (acetic acid): n (phytic acid)=: the ratio of 2 mixes, and obtains hydrolyst.
3) configuration of solubility promoter.Dehydrated alcohol selected by solubility promoter.
4) configuration of nanoassemble permeate agent.At ambient temperature, by silane mixture liquid, hydrolyst, solubility promoter and deionized water by after following parts by weight mixing, Keep agitation, hydrolysis 48h, until after mixed solution clarification, ageing is for subsequent use, obtains nanoassemble permeate agent (a liquid).
5) configuration of solidifying agent.Diethylenetriamine selected by solidifying agent, is made into the aqueous solution of 10mol/L, obtains the solution (b liquid) of aliphatics amine curing agent.
6) configuration of modified paint.First b liquid is added in a liquid, a liquid pH is regulated to be 6.0 ± 0.2, then at ambient temperature a liquid of adjusted pH value, XGE-FT-A aqueous fluorocarbon coating (Anhui Seagal coating Science and Technology Ltd.) and deionized water are pressed the part by weight mixing of 0.1:15:5, after stirring 30min fully mixes, after leaving standstill 20min froth breaking, obtain modified aqueous paint.
7) the magnesium alloy print of environment-friendly spray coating technique after differential arc oxidation is used to prepare water-based compound coating on the surface.Spraying parameter is: spray pressure is 2MPa, and spray distance is 20mm, bake out temperature 150 DEG C, drying time 30min, and the thickness of coating is 10 μm.
The bonding strength of the Mg alloy surface compound protective coating obtained by the present embodiment is 32MPa, and surperficial Vickers' hardness is maximum reaches Hv300, and resistance to neutral salt spray test reaches more than 360h, wear resistance: coefficient of wear (WI) < 0.7.
Embodiment 3
1. material prepares: after AZ31B magnesium alloy cutting polishing, polishing, use ultrasonic cleaning oil removing in acetone soln.
2. the configuration of differential arc oxidation: sodium hydroxide 5g/L, water glass 15g/L, all the other are water, and temperature is room temperature.Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 500Hz, and current density is 3A/dm
2, oxidization time is 30min, and oxide thickness is 14 ~ 15 μm, porosity 35%, 2 ~ 5 μm, aperture.
3. the preparation of modification compound coating:
1) configuration of silane mixture liquid.By silane KH-560 and TEOS with mol ratio be n (KH560): n (TEOS)=5:2 ratio mixing stir evenly, obtain silane mixture liquid.
2) configuration of hydrolyst.Be that the ratio of n (acetic acid): n (phytic acid)=4:1 mixes with mol ratio by acetic acid and phytic acid, obtain hydrolyst.
3) configuration of solubility promoter.Dehydrated alcohol selected by solubility promoter.
4) configuration of nanoassemble permeate agent.At ambient temperature, by silane mixture liquid, hydrolyst, solubility promoter and deionized water by after following parts by weight mixing, Keep agitation, hydrolysis 60h, until after mixed solution clarification, ageing is for subsequent use, obtains nanoassemble permeate agent (a liquid).
5) configuration of solidifying agent.Diethylenetriamine selected by solidifying agent, is made into the aqueous solution of 10mol/L, obtains b liquid.
6) configuration of modified paint.First b liquid is added in a liquid, a liquid pH is regulated to be 6.0 ± 0.2, then at ambient temperature a liquid of adjusted pH value, XGE-401-C waterborne metallic paint (Anhui Seagal coating Science and Technology Ltd.) and deionized water are mixed in the ratio of massfraction 0.1:10:1, after stirring 30min fully mixes, after leaving standstill 20min froth breaking, obtain modified aqueous paint.
7) the magnesium alloy print of environment-friendly spray coating technique after differential arc oxidation is used to prepare water-based compound coating on the surface.Spraying parameter is: spray pressure is 2MPa, and spray distance is 20mm, bake out temperature 180 DEG C, drying time 20min, and the thickness of coating is 8 ~ 10 μm.
The bonding strength of the Mg alloy surface compound protective coating obtained by the present embodiment is 31MPa, and surperficial Vickers' hardness is maximum reaches Hv320, and resistance to neutral salt spray test reaches more than 370h, wear resistance: coefficient of wear (WI) < 0.7.
Embodiment 4
1. material prepares: after Mg-Gd-Y magnesium alloy cutting polishing, polishing, use ultrasonic cleaning oil removing in acetone soln.
2. the configuration of differential arc oxidation: sodium hydroxide 5g/L, water glass 20g/L, all the other are water, and temperature is room temperature.Adopt high voltage pulse mode to carry out differential arc oxidation, pulse-repetition is 1000Hz, and current density is 2A/dm
2, oxidization time is 30min, and oxide thickness is 17 ~ 18 μm, porosity 30%, 3 ~ 5 μm, aperture.
3. the preparation of modification compound coating:
1) configuration of silane mixture liquid.By silane KH-560 and TEOS with mol ratio be n (KH560): n (TEOS)=2:1 ratio mixing stir evenly, obtain silane mixture liquid.
2) configuration of hydrolyst.Be that the ratio of n (acetic acid): n (phytic acid)=8:3 mixes with mol ratio by acetic acid and phytic acid, obtain hydrolyst.
3) configuration of solubility promoter.Dehydrated alcohol selected by solubility promoter.
4) configuration of nanoassemble permeate agent.At ambient temperature, by silane mixture liquid, hydrolyst, solubility promoter and deionized water by after following parts by weight mixing, Keep agitation, hydrolysis 72h, until after mixed solution clarification, ageing is for subsequent use, obtains nanoassemble permeate agent (a liquid).
5) configuration of solidifying agent.Diethylenetriamine selected by solidifying agent, is made into the aqueous solution of 10mol/L, obtains b liquid.
6) configuration of modified paint.First b liquid is added in a liquid, a liquid pH is regulated to be 6.0 ± 0.2, then at ambient temperature a liquid of adjusted pH value, XGE-401-A aqueous polyurethane coating (Anhui Seagal coating Science and Technology Ltd.) and deionized water are mixed in the ratio of massfraction 0.1:10:2, after stirring 30min fully mixes, after leaving standstill 20min froth breaking, obtain modified aqueous paint.
7) the magnesium alloy print of environment-friendly spray coating technique after differential arc oxidation is used to prepare water-based compound coating on the surface.Spraying parameter is: spray pressure is 2MPa, and spray distance is 20mm, bake out temperature 150 DEG C, drying time 30min, and the thickness of coating is 9 ~ 10 μm.
The bonding strength of the Mg alloy surface compound protective coating obtained by the present embodiment is 35MPa, and surperficial Vickers' hardness is maximum reaches Hv350, and resistance to neutral salt spray test reaches more than 370h, wear resistance: coefficient of wear (WI) < 0.7.
Above-described embodiment is that the present invention is at magnesium alloy matrix surface preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the preparation method of a magnesium alloy surface micro-arc oxidation nanoassemble compound protective coating, it is characterized in that: first the method is carried out differential arc oxidation to magnesium alloy matrix surface and formed porous ceramic layer, then aqueous coating is formed to porous ceramic layer surface spraying modified aqueous paint, thus form the compound protective coating be made up of porous ceramic layer and aqueous coating at magnesium alloy matrix surface;
Described modified aqueous paint is by 0.1:(10 ~ 20 by nanoassemble permeate agent, common water borne coating and deionized water): after the part by weight mixing of (1 ~ 5), stir 20 ~ 30min, obtained after leaving standstill froth breaking.
2. the preparation method of compound protective coating according to claim 1, is characterized in that: described differential arc oxidation is that magnesium alloy substrate is put into electrolytic solution, adopts high voltage pulse mode to carry out differential arc oxidation to magnesium alloy substrate; Described electrolytic solution is: sodium hydroxide 2 ~ 10g/L, water glass 5 ~ 20g/L, and all the other are water; Pulse-repetition is 100 ~ 2000Hz, and current density is 2 ~ 10A/dm
2, the differential arc oxidation time is 30 ~ 60min, and differential arc oxidation temperature is 10 ~ 50 DEG C.
3. the preparation method of compound protective coating according to claim 2, it is characterized in that: described porous ceramics layer thickness is 10 ~ 25 μm, porosity is 20 ~ 40%, and aperture is 1 ~ 6 μm; Porous ceramic layer main component is Magnesium Silicate q-agent.
4. preparation method according to claim 1, is characterized in that: described common water borne coating is water soluble acrylic acid, aqueous polyurethane, water-base epoxy, water-based fluorocarbon or water-based metal baking vanish.
5. the preparation method of compound protective coating according to claim 1, is characterized in that: described nanoassemble permeate agent is by after component miscibility each in raw material, obtains after being hydrolyzed 2 ~ 3 days under agitation condition; In described raw material, each component is counted by weight, composed as follows:
6. the preparation method of compound protective coating according to claim 5, it is characterized in that: described silane mixture liquid is mixed by γ-glycidyl ether oxygen propyl trimethoxy silicane and tetraethyl orthosilicate, the mol ratio of γ-glycidyl ether oxygen propyl trimethoxy silicane and tetraethyl orthosilicate is (3 ~ 5): (0.2 ~ 1.5); Described hydrolyst is the mixed solution of acetic acid and phytic acid, and acetic acid and phytic acid mol ratio are (3 ~ 8): (1 ~ 3); Described solubility promoter is dehydrated alcohol.
7. according to the preparation method of the arbitrary described compound protective coating of claim 4-6, it is characterized in that: before spraying, the solution adding aliphatics amine curing agent in the modified aqueous paint of preparation regulates its pH value to be 5.5-7.
8. the preparation method of compound protective coating according to claim 7, it is characterized in that: described aliphatics amine curing agent is diethylenetriamine, the concentration of aliphatics amine curing agent solution is 10mol/L.
9. the preparation method of compound protective coating according to claim 1, it is characterized in that: modified aqueous paint spraying parameter is: spray pressure is 1.5 ~ 2.5MPa, spray distance is 20 ~ 60mm, bake out temperature 150 ~ 180 DEG C, drying time 20 ~ 30min; The thickness of aqueous coating 10 ~ 20 μm.
10. the preparation method of compound protective coating according to claim 1, is characterized in that: described magnesium alloy is AZ91D, AZ31B, ZM5, ZM6, MB5 or magnesium-rare earth Mg-Gd-Y.
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| CN106222647A (en) * | 2016-07-23 | 2016-12-14 | 中信戴卡股份有限公司 | A kind of surface treatment method of Mg alloy |
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| CN116515351A (en) * | 2023-04-19 | 2023-08-01 | 中南机诚精密制品(深圳)有限公司 | Preparation method of alloy product and micro-arc oxidation layer added with one paint composite film layer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2260078C1 (en) * | 2004-05-14 | 2005-09-10 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет) | Method of making protective coats on surfaces of articles made from magnesium and magnesium-based alloys |
| CN101092694A (en) * | 2007-08-15 | 2007-12-26 | 李克清 | Method for processing surface of magnesium alloy |
| US20100040795A1 (en) * | 2008-08-14 | 2010-02-18 | Shenzhen Futaihong Precision Industry Co., Ltd. | Process for sealing micro pores of micro-arc oxide films |
| US20100112298A1 (en) * | 2008-10-30 | 2010-05-06 | Shenzhen Futaihong Precision Industry Co., Ltd. | Method for making housing and housing thereof |
| CN102011166A (en) * | 2010-10-20 | 2011-04-13 | 安泰科技股份有限公司 | Aluminum-based composite material with ultra-low friction coefficient and preparation method thereof |
| CN102234803A (en) * | 2010-05-07 | 2011-11-09 | 中国科学院金属研究所 | Preparation method of composite coating on magnesium alloy plasma oxide ceramic surface |
| CN102234802A (en) * | 2010-04-21 | 2011-11-09 | 中国科学院金属研究所 | Method for preparing multilayer high corrosion resistant-wear resistant composite protective coating on magnesium alloy surface |
-
2012
- 2012-09-18 CN CN201210345501.4A patent/CN103668393B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2260078C1 (en) * | 2004-05-14 | 2005-09-10 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет) | Method of making protective coats on surfaces of articles made from magnesium and magnesium-based alloys |
| CN101092694A (en) * | 2007-08-15 | 2007-12-26 | 李克清 | Method for processing surface of magnesium alloy |
| US20100040795A1 (en) * | 2008-08-14 | 2010-02-18 | Shenzhen Futaihong Precision Industry Co., Ltd. | Process for sealing micro pores of micro-arc oxide films |
| US20100112298A1 (en) * | 2008-10-30 | 2010-05-06 | Shenzhen Futaihong Precision Industry Co., Ltd. | Method for making housing and housing thereof |
| CN102234802A (en) * | 2010-04-21 | 2011-11-09 | 中国科学院金属研究所 | Method for preparing multilayer high corrosion resistant-wear resistant composite protective coating on magnesium alloy surface |
| CN102234803A (en) * | 2010-05-07 | 2011-11-09 | 中国科学院金属研究所 | Preparation method of composite coating on magnesium alloy plasma oxide ceramic surface |
| CN102011166A (en) * | 2010-10-20 | 2011-04-13 | 安泰科技股份有限公司 | Aluminum-based composite material with ultra-low friction coefficient and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| SiCw/AZ91镁基复合材料的微弧氧化行为及涂层的耐腐蚀性能;王艳秋等;《金属学报》;20070630;第43卷(第6期);第631-636页 * |
| 用优化的Na2SiO3电解液制备的镁合金陶瓷膜的防护性能;张慧霞等;《腐蚀科学与防护技术》;20080731;第20卷(第4期);第268-271页 * |
| 镁及镁合金阳极氧化工艺综述;张永君等;《材料保护》;20010930;第34卷(第9期);第24-26,29页 * |
| 镁合金微弧氧化/空气喷涂复合膜层的耐盐雾腐蚀性能;张亚军等;《材料保护》;20110630;第44卷(第6期);第25-27页 * |
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