CN101597784B - Hole-sealing method for anode oxide film of light metal material - Google Patents
Hole-sealing method for anode oxide film of light metal material Download PDFInfo
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- CN101597784B CN101597784B CN2008101086998A CN200810108699A CN101597784B CN 101597784 B CN101597784 B CN 101597784B CN 2008101086998 A CN2008101086998 A CN 2008101086998A CN 200810108699 A CN200810108699 A CN 200810108699A CN 101597784 B CN101597784 B CN 101597784B
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Abstract
The invention provides a hole-sealing method for an anode oxide film of a light metal material. The method comprises the following steps: coating paint on the light metal material with the anode oxide film formed on the surface. The light metal material after hole sealing by the hole-sealing method for the anode oxide film of the light metal material turns exceptional on the surface after 3300-3790 hours, and a light metal material after hole sealing by the prior hole-sealing method for the anode oxide film of the light metal material turns exceptional on the surface after 3400 hours, thereby proving that light metal material after the hole sealing by the hole-sealing method for the anode oxide film of the light metal material does not contain nickel and can achieve favorable hole-sealing effect.
Description
Technical field
The present invention relates to a kind of method for sealing of anode oxide film of light metal material.
Background technology
Light metal material, for example aluminium, magnesium, zinc, titanium, duraluminum, magnesiumalloy, zinc alloy and titanium alloy etc., but have that density is little, the conductive and heat-conductive ability is strong, mechanical property is excellent and advantage such as secondary processing, therefore in national economy, obtained using widely.Therefore but light metal material generally is prone to be corroded, and in order to utilize light metal material better, needs to carry out surface treatment to light metal material usually and avoids light metal material to be corroded, and using more at present is that light metal material is carried out anodic oxidation.
Traditional anode oxidation process flow process is: removing oil-removing wax → chemical rightenning → anodic oxidation → sealing of hole → oven dry (per step all need wash fully); When the color to light metal material has requirement, can dye at the light metal material after the antianode oxidation before the sealing of hole.
The anode oxidation membrane of light metal material is fine and close porous layer; Has higher adsorptive power; Thereby be adsorbed with harmful substances easily and cause the contaminated or premature corrosion of light metal material; Therefore for fear of because of being adsorbed with the contaminated or premature corrosion of harmful substances, need the light metal material after the antianode oxidation to carry out the sealing of hole processing.Method for sealing commonly used has hydration sealing of hole, metal salt solution sealing of hole in the industry.
(1) hydration sealing of hole
The hydration sealing of hole comprises boiling water sealing hole and normal pressure, steam under pressure sealing of hole.The anodizing of aluminium film has the reaction of two kinds of forms in water; The one,, below 80 ℃, in the water of pH＜4, be combined into Bayer body hibbsite with water, this combination only is physical bond, is reversible.Another kind is in the neutral water more than 80 ℃; The monohydrate alumina of aluminum oxide and aquation composite wave rice build; The common reaction process of the hydration sealing of hole of indication that Here it is; Because density (3014kg/ cubic meter) ratio aluminum oxide (3420kg/ cubic meter) of monohydrate alumina is little, volume increases about 33%, has stopped up the hole of sull.The another kind of method of hydration sealing of hole is the steam sealing of hole, and its handled sull corrosion stability, wear resistance are relevant with the sealing of hole time with vapor pressure.In general, reduce, can not satisfy the requirement of corrosion stability and wear resistance simultaneously with pressure rising, time lengthening, corrosion stability raising, wear resistance.For this reason, developed the metal salt solution sealing of hole.
(2) metal salt solution sealing of hole
Sealing of hole in metal salt solution; The hydration reaction of sull had both taken place; Saline hydrolysis generates oxyhydroxide or metals ion precipitates the process of separating out with the new metal complex of dye molecule reaction generation in membrane pores thereby exist again, and their actings in conjunction make pore closure.This treatment process is also referred to as the deposition sealing of hole.What often use is nickel salt solution, and its sealing of hole is effective.
A kind of aluminium and aluminium alloy anode oxide film ordinary-temp pore-sealing liquid and compound method thereof are for example disclosed among the patent CN 1074956A; Wherein, this pore-sealing liquid contains the single nickel salt of 1.0-3.0 grams per liter, the fluoroboric acid of 1.5-4.5 grams per liter, the nickel acetate of 0-4 grams per liter, the sodium hydroxide of 0.4-2.5 grams per liter;
The compound method of this ordinary-temp pore-sealing liquid comprises following step: (1) is that 30% fluoroboric acid is put into acid-resistant tank with content; (2) nickelous carbonate is joined in the above-mentioned fluoborate solution lentamente, the limit edged stirs, and dissolves fully until nickelous carbonate; (3) be the 0.5-1.5 grams per liter with being diluted with water to nickel ion content in the above-mentioned solution adding sealing of hole groove; (4) pH that regulates above-mentioned mixing solutions with 50% sodium hydroxide solution is between 5.0-7.0.
The sealing quality of above-mentioned method for sealing is better, and all there is the halfway phenomenon of sealing of hole in other method for sealing.But because nickel is heavy metal material, the light metal material surface nickel content of using the nickel salt solution method for sealing to obtain is higher, harmful, therefore presses for a kind of no nickel hole sealing technology of exploitation.
Summary of the invention
The objective of the invention is for the nickeliferous defective of light metal material behind the method for sealing sealing of hole that overcomes the anode oxide film that uses existing light metal material, a kind of effective and method for sealing of the anode oxide film of nickeliferous light metal material not is provided.
The invention provides a kind of method for sealing of anode oxide film of light metal material, wherein, this method comprises that the light metal material that the surface is formed with anode oxide film carries out oil paint coating.
Can find out from the data of table 1; Adopt the light metal material behind the method for sealing sealing of hole of anode oxide film of light metal material provided by the invention to occur unusual through surface after 3300-3790 hour; It is unusual to adopt light metal material behind the existing nickel acetate method for sealing sealing of hole to occur through surface after 3400 hours, has explained that thus the light metal material behind the method for sealing sealing of hole of anode oxide film of light metal material provided by the invention does not only have nickel but also can reach sealing of hole effect preferably.
Embodiment
The invention provides a kind of method for sealing of anode oxide film of light metal material, wherein, this method comprises that the light metal material that the surface is formed with anode oxide film carries out oil paint coating.
Oil paint coating described in the present invention is included in and applies finish paint on the anode oxide film and finish paint is solidified, and forming thickness is the top coat layer of 15-65 micron.
Said finish paint can be thermofixation finish paint and/or ultra-violet curing finish paint, and said curing can be thermofixation or UV curing; The method of thermofixation can comprise that the temperature of heating can be 100-250 ℃ with the finish paint heating, and can be 15-40 minute heat-up time; UV solidified method can comprise with UV-irradiation finish paint surface; The time of irradiation can be 1-3 minute; The ultraviolet light intensity can be 1000-1300 milli Jiao/square centimeter, and wavelength can be the 360-370 nanometer, and the distance of finish paint and light source can be 25-100 centimetre.
Said finish paint can be for well known to a person skilled in the art various functional finish paints, for example can be wear-resisting for having, fast light, the functional finish paint of function such as protection against corrosion, diamagnetic or radioprotective.What use in the embodiment of the invention is the anti-UV clear lacquer of long sincere coating (Guangdong) ltd of Akzo Nobel.
When the color to light metal material had requirement, said oil paint coating can also be included in and form before the said top coat layer, on anode oxide film, applies colored paint and colored paint is solidified, and forming thickness is the colored paint layer of 10-20 micron.The method of cured colored paint can comprise the heating colored paint, and the temperature of heating can be 100-250 ℃, and the time of heating can be 15-40 minute.
Said colored paint can generally can for example can be versicolor colored paints such as redness, yellow, blueness, green, purple, black or white for containing the colored paint of polyurethanes compound for well known to a person skilled in the art versicolor colored paint.What use in the embodiment of the invention is the lilac colored paint of long sincere coating (Guangdong) SC-D-R24074 of ltd of the Akzo Nobel trade mark.
Generally; In order to strengthen the surface decoration effect of metallic substance; Metallic substance is carried out need carrying out surface treatments such as wire drawing, CD line, sandblast and radium carving figure to the metallic surface before the anodic oxidation; But, cannot see the superficial makings of metallic substance behind the final oil paint coating owing to the flow leveling of colored paint.Therefore, under the preferable case, when the color to light metal material had requirement, said oil paint coating can also be included in and form before the said top coat layer, on anode oxide film, applies dyestuff and oven dry.
The method that on anode oxide film, applies dyestuff is for impregnated in the light metal material after the anodic oxidation in the aqueous dye solutions.
Said dyestuff can be for well known to a person skilled in the art versicolor dyestuff; Generally can be water-soluble organic dye; For example can be versicolor dyestuffs such as redness, yellow, blueness, green, purple, black or white, the temperature of dipping can be 40-50 ℃, in addition; Can select suitable time of immersion according to the depth of required color, generally can be 0.5-6 minute.Temperature during said oven dry dyestuff can be 50-90 ℃, and the time can be 5-25 minute.The concentration of dyestuff can be the 1-15 grams per liter in the aqueous dye solutions.Because dye adsorption in the micropore of anode oxide film, can not resemble the colored paint decorative effect that covers the metallic surface texture because of leveling characteristics and opacity.
Before the further preferred oven dry, the light metal material after in air-flow, will dyeing earlier dries up.The temperature of said air-flow can be 30-40 ℃, and the speed of said air-flow can be the 5-10 meter per second, said air-flow can for not with the inert gas flow of light metal material reaction, also can be the airflow of cleaning.According to this preferred implementation; The moisture on the light metal material surface after in air-flow, will dyeing earlier before the oven dry dyestuff dries up; In the time of can preventing directly to dry dyestuff; Higher bake out temperature causes fenestra and water that self-enclosed reaction takes place, thereby influences the phenomenon of the carrying out of follow-up coating finish paint, so can further improve the erosion resistance of the light metal material behind the sealing of hole.Oven dry is for to toast at baking box described in the present invention.
Light metal material described in the present invention can be aluminium, magnesium, zinc, titanium, duraluminum, magnesiumalloy, zinc alloy or titanium alloy.The thickness of said anode oxide film is generally the 0.5-18 micron.
To make more detailed description to the present invention through embodiment below.Among each embodiment, only if specified otherwise, the solvent of used solution is water.The thickness tester of the Pocket-Surfix FN2.2 model that the thickness of rete is produced with German PHYNIX company among the embodiment records.The electrostatic coating equipment paint sprayer NDL-Q2 that all produces with the outstanding Electronics Co., Ltd. of the municipal intelligence in Wuhan among the embodiment sprays colored paint and finish paint, and the NMT-1950 type baking box of producing with Shenzhen Nai Meite company toasts.
Embodiment 1
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
1, pre-treatment
(1) removing oil-removing wax
The model that will have anaglyph be 6061 aluminum alloy base material to be immersed in 40 grams per liters, temperature be that 60 ℃ alloy removes in oil-bound distemper (purchase in the LD-208 alloy that Shenzhen's moral is contained chemical industry ltd and the remove oil-bound distemper) solution and takes out after 5 minutes, the alloy that water cleans substrate surface removes oil-bound distemper.
(2) chemical rightenning
Impregnated in the above-mentioned aluminum alloy base material that carries out behind the removing oil-removing wax by concentration is chemical rightenning after 5 seconds in the solution formed of the phosphoric acid of 700 grams per liters and sulfuric acid that concentration is 200 grams per liters; Impregnated in immediately in the water to clean the residual acid of substrate surface; Then base material impregnated in the sodium hydroxide solution of 10 grams per liters after 10 minutes, impregnated in the residual alkali that cleans substrate surface in the water immediately.
2, anodic oxidation
The above-mentioned base material that carries out after the pre-treatment is immersed in the electrolytic solution as anode, simultaneously with stainless steel as negative electrode, negative electrode is connected with negative electricity with the positive pole of power supply respectively with anode.The solution that employing is made up of the Tai-Ace S 150 of the sulfuric acid of 180 grams per liters, 8 grams per liters is as electrolytic solution, and regulating volts DS is 13 volts, carries out anodic oxidation 35 minutes.Recording substrate surface, to form thickness be 13 microns anode oxide film.Base material after the anodic oxidation was toasted 0.5 hour in 100 ℃ baking oven.
3, sealing of hole
The anti-UV clear lacquer of producing in the above-mentioned long sincere coating (Guangdong) of substrate surface spraying Akzo Nobel ltd after carrying out anodic oxidation with spray gun; Then UV solidify use in the case 1000 milli Jiao/square centimeters, wavelength be 360 nanometers ultraviolet ray apart from the place of 25 centimetres of base materials from having applied one side irradiation completion in the 1 minute UV curing of the anti-UV clear lacquer, the thickness that records the top coat layer of formation is 15 microns.
Comparative Examples 1
This Comparative Examples is explained the method for sealing of the anode oxide film of existing light metal material.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is to carry out sealing of hole with following method.
50 gram nickelous carbonates slowly are added in 300 milliliters 30% the technical grade fluoroboric acid, the limit edged stirs until dissolving fully, and thin up becomes 500 milliliters of sealing of holes to use strong solution then; Above-mentioned strong solution is further diluted; Sodium hydroxide adjust pH with 50%, using volumetry to measure nickel ion concentration is 0.6 grams per liter, using fluoride ion electrode to survey fluorinion concentration is 0.53 grams per liter; Using pH meter to survey the pH value is 5.0, processes ordinary-temp pore-sealing liquid.
To pass through pre-treatment and anodised base material immerses in the above-mentioned pore-sealing liquid and to carry out sealing of hole in 10 minutes.
Embodiment 2
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Use the method identical that model with anaglyph is carried out pre-treatment, anodic oxidation and sealing of hole as the magnesiumalloy base material of AZ91D with embodiment 1; Different is; In the anodic oxidation, anodizing time is 1 minute, and recording substrate surface, to form thickness be 0.5 micron anode oxide film; In addition; In the sealing of hole; Behind the spraying UV clear lacquer; Then UV solidify use in the case 1300 milli Jiao/square centimeters, wavelength be 370 nanometers ultraviolet ray apart from the place of 100 centimetres of base materials from having applied one side irradiation completion in the 3 minutes UV curing of the anti-UV clear lacquer, the thickness that records the top coat layer of formation is 65 microns.
Embodiment 3
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Use with embodiment 1 identical method the model with anaglyph is carried out pre-treatment, anodic oxidation and sealing of hole as the zinc-base material, different is, in the anodic oxidation, anodizing time is 40 minutes, and recording substrate surface, to form thickness be 18 microns anode oxide film; In addition; In the sealing of hole; Behind the spraying UV clear lacquer; Then UV solidify use in the case 1100 milli Jiao/square centimeters, wavelength be 365 nanometers ultraviolet ray apart from the place of 55 centimetres of base materials from having applied one side irradiation completion in the 2 minutes UV curing of the anti-UV clear lacquer, the thickness that records the top coat layer of formation is 40 microns.
Embodiment 4
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is to carry out sealing of hole with following method.
Spray the lilac colored paint of the SC-D-R24074 of the long sincere coating (Guangdong) of Akzo Nobel ltd production with the substrate surface of spray gun after carrying out anodic oxidation; 100 ℃ oven for baking 40 minutes, the thickness that records the colored paint layer of formation was 10 microns then.
Be formed with the anti-UV clear lacquer of the long sincere coating (Guangdong) of the substrate surface spraying Akzo Nobel ltd production of colored paint layer on above-mentioned surface with spray gun; In baking oven, toast completion thermofixations in 40 minutes down at 100 ℃ then, the thickness that records the top coat layer of formation is 15 microns.
Embodiment 5
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Use the method identical with embodiment 1 that model with anaglyph is carried out pre-treatment, anodic oxidation and sealing of hole as the titanium alloy base material of TA2, different is to carry out sealing of hole with following method.
Spray the lilac colored paint of the SC-D-R24074 of the long sincere coating (Guangdong) of Akzo Nobel ltd production with the substrate surface of spray gun after carrying out anodic oxidation; In 250 ℃ baking oven, toasted 15 minutes then, the thickness that records the colored paint layer of formation is 20 microns.
Be formed with the anti-UV clear lacquer of the long sincere coating (Guangdong) of the substrate surface spraying Akzo Nobel ltd production of colored paint layer on above-mentioned surface with spray gun; In baking oven, toast completion thermofixations in 15 minutes down at 250 ℃ then, the thickness that records the top coat layer of formation is 65 microns.
Embodiment 6
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is to carry out sealing of hole with following method.
Spray the lilac colored paint of the SC-D-R24074 of the long sincere coating (Guangdong) of Akzo Nobel ltd production with the substrate surface of spray gun after carrying out anodic oxidation; In 150 ℃ baking oven, toasted 30 minutes then, the thickness that records the colored paint layer of formation is 15 microns.
Be formed with the anti-UV clear lacquer of the long sincere coating (Guangdong) of the substrate surface spraying Akzo Nobel ltd production of colored paint layer on above-mentioned surface with spray gun; In baking oven, toast completion thermofixations in 25 minutes down at 150 ℃ then, the thickness that records the top coat layer of formation is 40 microns.
Embodiment 7
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is, in the sealing of hole before applying finish paint earlier with following method coating dyestuff.
To carry out base material after the anodic oxidation and impregnated in orchil (purchasing) aqueous solution of 40 ℃ 1 grams per liter 6 minutes in the Far East, Shenzhen plastic cement dyestuff company; After the flowing water cleaning; The speed of using 30 ℃ is that the airflow of 5 meter per seconds dries up base material, then 50 ℃ oven for baking 25 minutes.
Embodiment 8
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is, in the sealing of hole before applying finish paint earlier with following method coating dyestuff.
To carry out base material after the anodic oxidation and impregnated in orchil (purchasing) aqueous solution of 50 ℃ 15 grams per liters 0.5 minute in the Far East, Shenzhen plastic cement dyestuff company; After the flowing water cleaning; The speed of using 35 ℃ is that the airflow of 10 meter per seconds dries up base material, then 90 ℃ oven for baking 5 minutes.
Embodiment 9
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 1 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is, in the sealing of hole before applying finish paint earlier with following method coating dyestuff.
To carry out base material after the anodic oxidation and impregnated in orchil (purchasing) aqueous solution of 45 ℃ 7 grams per liters 3 minutes in the Far East, Shenzhen plastic cement dyestuff company; After the flowing water cleaning; The speed of using 40 ℃ is that the airflow of 8 meter per seconds dries up base material, then 70 ℃ oven for baking 15 minutes.
Embodiment 10
This embodiment explains the method for sealing of the anode oxide film of light metal material provided by the invention.
Using the method identical with embodiment 9 is that 6061 aluminum alloy base material carries out pre-treatment, anodic oxidation and sealing of hole to the model with anaglyph, and different is, behind the coating dyestuff, does not dry up with airflow in the sealing of hole, directly in baking oven, toasts.
Light metal material among the difference visual inspection embodiment 1-10 behind the sealing of hole; The result finds can't see the anaglyph on the surface of the light metal material behind the sealing of hole among the embodiment 4-6, can see the anaglyph on the surface of the light metal material behind the sealing of hole among embodiment 1-3 and the 7-10.
Embodiment 11-20
This embodiment explains the erosion resistance of the light metal material behind the method for sealing sealing of hole of the anode oxide film that adopts light metal material provided by the invention.
Adopt the following method erosion resistance of carrying out the light metal material behind the sealing of hole of test implementation example 1-10 respectively.
Erosion resistance is weighed through salt-fog test; The salt-fog test method is that base material places in the YWX/Q-250 type salt-mist corrosion tester that Wuxi City southern Jiangsu testing installation ltd produces, and using concentration down at 35 ℃ is the sodium chloride aqueous solution splash of 5 weight % after 16 hours, and again base material being placed the another one temperature after the taking-up is that 40 ℃, relative humidity are 80% climatic chamber; Observe base material; Be recorded in how long the back substrate surface occurs unusually, the time is long more, explains that the erosion resistance of rete is good more.Test result is as shown in table 1 below.
Comparative Examples 2
This Comparative Examples is used to explain the erosion resistance of the light metal material behind the method for sealing sealing of hole of anode oxide film of light metal material of Comparative Examples 1.
Use the method identical erosion resistance of light metal material behind the sealing of hole of test comparison example 1 respectively with embodiment 11-20.Test result is as shown in table 1 below.
Table 1
| Numbering | Erosion resistance (hour) |
| Embodiment 11 | 3300 |
| Comparative Examples 2 | 3400 |
| Embodiment 12 | 3500 |
| Embodiment 13 | 3420 |
| Embodiment 14 | 3750 |
| Embodiment 15 | 3660 |
| Embodiment 16 | 3790 |
| Embodiment 17 | 3540 |
| Embodiment 18 | 3490 |
| Embodiment 19 | 3610 |
| Embodiment 20 | 3390 |
Can find out from the data of table 1; Adopt the light metal material behind the method for sealing sealing of hole of anode oxide film of light metal material provided by the invention to occur unusual through surface after 3300-3790 hour; It is unusual to adopt light metal material behind the existing nickel acetate method for sealing sealing of hole to occur through surface after 3400 hours, has explained that thus the light metal material behind the method for sealing sealing of hole of anode oxide film of light metal material provided by the invention does not only have nickel but also can reach sealing of hole effect preferably.
Claims (6)
1. the method for sealing of the anode oxide film of a light metal material; It is characterized in that this method comprises that the light metal material that the surface is formed with anode oxide film carries out oil paint coating, said oil paint coating is included in and applies finish paint on the anode oxide film and make finish paint solidify to form top coat layer; Said oil paint coating also is included in and forms before the said top coat layer; On anode oxide film, apply dyestuff and oven dry, and before oven dry, the light metal material after in air-flow, will dyeing dries up.
2. method according to claim 1, wherein, the thickness of said top coat layer is the 15-65 micron.
3. method according to claim 2, wherein, said finish paint is thermofixation finish paint and/or ultra-violet curing finish paint, said thermofixation or the UV of being cured as solidifies; The method of thermofixation comprises that the temperature of heating is 100-250 ℃ with the finish paint heating, and be 15-40 minute heat-up time; UV solidified method comprises that the time of irradiation is 1-3 minute with UV-irradiation finish paint surface, and the ultraviolet light intensity is a 1000-1300 milli Jiao/square centimeter, and wavelength is the 360-370 nanometer, and the distance of finish paint and light source is 25-100 centimetre.
4. method according to claim 1; Wherein, the method that on anode oxide film, applies dyestuff is for impregnated in the light metal material after the anodic oxidation in the aqueous dye solutions, and the temperature of dipping is 40-50 ℃; Time of immersion is 0.5-6 minute; Temperature during said oven dry dyestuff is 50-90 ℃, and the time is 5-25 minute, and the concentration of dyestuff is the 1-15 grams per liter in the aqueous dye solutions.
5. method according to claim 1, wherein, the temperature of said air-flow is 30-40 ℃, the speed of said air-flow is the 5-10 meter per second.
6. method according to claim 1, wherein, said light metal material is aluminium, magnesium, zinc, titanium, duraluminum, magnesiumalloy, zinc alloy or titanium alloy, the thickness of said anode oxide film is the 0.5-18 micron.
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| CN1920112A (en) * | 2006-07-26 | 2007-02-28 | 李文英 | Dyeing dip-coating composite processing method of aluminium section bar surface |
| CN101170182A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | A surface processing method for proton exchange film fuel battery group aluminum alloy terminal board |
| CN101293460A (en) * | 2007-04-24 | 2008-10-29 | 比亚迪股份有限公司 | Surface decoration method for light metal material |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920112A (en) * | 2006-07-26 | 2007-02-28 | 李文英 | Dyeing dip-coating composite processing method of aluminium section bar surface |
| CN101170182A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | A surface processing method for proton exchange film fuel battery group aluminum alloy terminal board |
| CN101293460A (en) * | 2007-04-24 | 2008-10-29 | 比亚迪股份有限公司 | Surface decoration method for light metal material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191960A (en) * | 2016-07-24 | 2016-12-07 | 李水金 | A kind of aluminium material surface hole sealing agent |
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| CN101597784A (en) | 2009-12-09 |
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