CN103352243A - Anode oxidation and organic-dyeing electrophoresis process of aluminium alloy - Google Patents
Anode oxidation and organic-dyeing electrophoresis process of aluminium alloy Download PDFInfo
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- CN103352243A CN103352243A CN2013102470882A CN201310247088A CN103352243A CN 103352243 A CN103352243 A CN 103352243A CN 2013102470882 A CN2013102470882 A CN 2013102470882A CN 201310247088 A CN201310247088 A CN 201310247088A CN 103352243 A CN103352243 A CN 103352243A
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 54
- 238000004043 dyeing Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 28
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 27
- 230000003647 oxidation Effects 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000005406 washing Methods 0.000 claims description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 238000002203 pretreatment Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000000975 dye Substances 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 6
- 238000004070 electrodeposition Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000005282 brightening Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 5
- -1 5-8g/L Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 4
- 238000010186 staining Methods 0.000 claims description 4
- 239000001117 sulphuric acid Substances 0.000 claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 238000005202 decontamination Methods 0.000 claims description 2
- 230000003588 decontaminative effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000005034 decoration Methods 0.000 description 5
- 239000002932 luster Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000007447 staining method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
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Abstract
The invention discloses an anode oxidation and organic-dyeing electrophoresis process of aluminium alloy. The anode oxidation and organic-dyeing electrophoresis process comprises the following steps of: (1) pretreatment of anode oxidation of the aluminium alloy; (2) generation of an oxidation film by anode oxidation; (3) normal-temperature organic dyeing; (4) film hole sealing after dyeing; and (5) electrophoresis and curing. The anode oxidation and organic-dyeing electrophoresis process disclosed by the invention has the advantages that for the aluminium alloy dyed by the process, the color is bright and uniform, the color difference is slight, the glossiness is good, the corrosion resistance and the weather resistance are good, the process has the decorative effect and can be used outdoors or indoors, the selection for color diversification is brought for consumers, the single color for the traditional aluminium-alloy surface treatment is changed, the process is most suitable for the batch production, the process is simple in the production process and the cost is low.
Description
Technical field
The present invention relates to a kind of aluminium alloy anode oxide process of surface treatment, particularly relate to the production technique of the organic dyeing electrophoresis of a kind of aluminium alloy anode oxide.
Background technology
Aluminium is strong especially to the chemical affinity of oxygen, and its total surface is covered by the oxide film of one deck dog's life in atmosphere, but natural alumite as thin as a wafer, and porosity is large, and physical strength is low, and against corrosion and wear resistance all can not satisfy etch-proof needs.Utilize electrochemical method, can make the quality oxide film of aluminium (or aluminium alloy) Surface Creation densification, and film is thicker, it all reads to reach tens to the hundreds of micron, effectively the erosion resistance of increase rate.In addition, because there is uniform space in formed oxide film, therefore the dyeing of available organic dye polarity is processed, color and luster is stable after sealing, makes the application of aluminium more extensive, makes like this electrochemical process of aluminium surface oxidation be called anodizing of aluminium.
General alumilite process electrophoresis has several: the colourless electrophoresis of anodic oxidation, electrolytic coloring of anodic oxidation electrophoresis, anodic oxidation dyeing electrophoresis, and these several electrophoresis are had nothing in common with each other aspect production cost, and color respectively has advantage aspect surface decoration.Organic dyeing electrophoresis cost is low, weather-proof, heat-resisting, light fastness is high, and cost is low, and color and luster is evenly color gorgeous, is suitable for batch production, can be used for decoration, building, industrial aluminium.Staining method than other has a very large advantage process stabilizing aspect the production, aberration are little, gives the diversified choice and operation of aluminium alloy human consumer, the laudatory title of organic dyeing electrophoresis Chromatic color electrophoresis.But still there is the difficult point on some Technologies in present aluminium alloy anode oxide electrophoresis process aspect.
Summary of the invention
The object of the present invention is to provide the organic dyeing electrophoresis process of a kind of aluminium alloy anode oxide, weather-proof, heat-resisting, light fastness is high, it is low that the aluminium alloy of producing can be used for decoration, outdoor architecture, industrial aluminium, production cost, and color and luster is evenly color gorgeous.
The object of the invention to solve the technical problems realizes by the following technical solutions.The organic dyeing electrophoresis process of a kind of aluminium alloy anode oxide according to the present invention proposes may further comprise the steps:
1) aluminium alloy anode oxide pre-treatment: at first be the aluminium section bar that to hang up properly after carrying out decontamination, oil removal treatment 1-3 minute in the tank liquor of rinse bath, through in the alkali groove alkaline etching 2-4 minute, through once entering in the neutralizing well 2-4 minute after the washing, handle to wash by 1-2 time entering down operation;
Its tank liquor consists of: rinse bath (brightening agent (acidity: phosphoric acid 50%, hydrofluoric acid 30%, surface-active ion 5%, excess water) 90-150 grams per liter), alkali groove (caustic soda 40-50 grams per liter), neutralizing well (sulfuric acid 160-200 grams per liter).
2) anodic oxidation generates oxide film: the section bar that pre-treatment is good carries out anodic oxidation treatment in anode oxidation groove liquid, its processing condition are: industrial sulphuric acid (98%): 140-180 grams per liter, temperature: 18-22 ℃, current density 1.2-1.5 peace/square decimeter.According to the period that requires of anode oxide film, handle by 2-3 washing and enter down operation.
3) the organic dyeing of normal temperature: will enter organic staining trough through the good section bar of anodic oxidation, belong to the organo-metallic dyestuff a kind of, namely be that metallized azo dyestuff ([NNN-]) is paired into a kind of color again by several colors, the complexing osmosis arranged, the color that can allow Market Consumer obtain wanting.General preparation tank liquor is pressed the 1-5 grams per liter, pH:5.5-6.5, temperature normal temperature, dyeing time 1-3 minute.
4) dye fenestra sealing behind the look: will dye lustful section bar and in the sealing of hole groove, carry out sealing of hole and process tank liquor main component: hole sealing agent, 5-8g/L, Ni
2+: 1.0-2.0g/L, temperature 55-65 ℃, pH:6-7 handles by once washing and enters the electrophoresis operation.
5) electrophoresis solidifies: after the section bar that sealing of hole is good is washed (once pure hot water, 1 st pure water are washed), hang in carry out the electrophoresis painting film in the electrophoresis chamber after, carry out twice washing, put into the drip-dry district, then put into and be cured operation (solidifying: temperature 180-200 ℃, insulation 20-30 minute) in the electrophoresis stove, unload the frame packing after finishing.
Electrophoresis chamber tank liquor composition is: the electrocoating paint solid content: 3.5-4.5 grams per liter, pH:7.5-8.5, acid number: 3.0-4.0, amine value: 2.0-3.5, specific conductivity: 350-1000S/M.
By technique scheme, the advantage that the present invention has is:
1, many colors: be mixed with the color that the human consumer wants by two or more colors;
2, production cost is low: do not need in process of production a lot of equipment, need not heat during organic dyeing;
3, use is wide: color and luster is the gorgeous organic dyeing electrophoresis of coloured silk evenly, is used for decoration, outdoor architecture, industrial aluminium;
4, quality is good: hardness of paint film reaches that 3H is above, weather-proof, heat-resisting, fast light, acid-proof alkaline is high.
Description of drawings
Fig. 1 is explained hereafter schematic flow sheet of the present invention.
Embodiment
The organic dyeing electrophoresis of a kind of aluminium alloy anode oxide of the present invention, color is many, the laudatory title of Chromatic color electrophoresis, and the quality aspect: weather-proof, heat-resisting, light fastness is high, it is low that the aluminium alloy of producing can be used for decoration, outdoor architecture, industrial aluminium, production cost, and color and luster is evenly color gorgeous.
See also shown in Figure 1ly, following explained hereafter flow process is adopted in invention:
1. blank is added, carries out addedly according to the anode oxidation coloration material, guarantees that conduction is good.
2. pre-treatment: oil removing: brightening agent (acidity) 90-150 grams per liter, normal temperature, treatment time 1-3 minute; Alkaline etching: caustic soda 40-50 grams per liter, temperature 45-55 ℃, treatment time 2-4 minute; Neutralization: industrial sulphuric acid 160-200 grams per liter, normal temperature, treatment time 2-4 minute.Laggard lower one oxidation of pincers material.
3. anodic oxidation generates oxide film: industrial sulphuric acid: the 140-180 grams per liter, and temperature: 18-22 ℃, current density 1.2-1.5 peace/square decimeter, oxidization time 15-30 minute, oxide film can reach 5 can carry out organic dyeing more than the film.
Washing totally can not dyeed because pickling is arranged in the fenestra after the oxidation before the dyeing, so this procedure washing must be tight, the oxidation after washing will be through the washing of three roads, and the per pass washing will be wanted 1-2 minute in tank;
4. organic dyeing: the organo-metallic dyestuff adds pure water preparation 1-5 grams per liter, pH:5.5-6.5, temperature normal temperature, dyeing time 1-3 minute.Enter the next process high temperature hole sealing after the dyeing.
5. high temperature hole sealing: temperature 55-65 ℃, hole sealing agent: 3-6, Ni ion 1-2, pH6-7, the sealing of hole time is because wanting electrophoresis not shut, general 1-2 minute.The sealing of hole after washing advances the next process electrophoresis.
6. electrophoresis operation: specific conductivity: 350-1000, electrocoating paint solid content: 3.5-4.5 grams per liter, pH:7.5-8.5, acid number: 3.0-4.0, amine value: 2.0-3.5, electrophoresis time 2-5 minute.
Solidify: temperature 180-200 ℃, insulation 20-30 minute; Hardness of paint film reaches more than the 3H.
7. the finished product undercarriage is packed.
Below by reference to the accompanying drawings the present invention is done further in detail statement by concrete preferred embodiment, but the present invention is not limited in following embodiment.
Embodiment 1
Surface of profile pre-treatment: adopt brightening agent 90g/L to join groove (phosphoric acid 50%, hydrofluoric acid 30%, surface-active ion (aliphatic acid polyethenoxy ether) 5%), normal temperature corroded 3 minutes, joining groove erosion 3 minutes with caustic soda 45g/L, through with in the 185g/L tank liquor and 3 minutes, obtain being better than the bright aluminum alloy active surface of traditional pre-treatment again.The aluminium section bar that advanced pre-treatment immerses anodic oxidation, sulfuric acid 180 grams per liters, temperature: 21 ℃, oxidization time 28 minutes, current density 1.3 peaces/square decimeter obtain water white anode oxide film.
Through three washings, enter staining trough, organic Zijin dyestuff 5g/L is dyeing time 2 minutes under 5.5 the environment in normal temperature pH value, the rear aluminium section bar that obtains dyeing is decided to be Zijin 1# look.After twice washing, enter the sealing of hole groove, the tank liquor main component: hole sealing agent (acrylic resin), 5-8g/L, Ni
2+: 1.0-2.0g/L, 65 ℃ of temperature, pH:6.5 processed 10 minutes, handled by once washing and entered the electrophoresis operation.
After the section bar that sealing of hole is good is washed (once pure hot water, 1 st pure water are washed), at the electrocoating paint solid content: 4 grams per liters, pH:7.5, acid number: 3.5, amine value: 3.0, specific conductivity: carry out the electrophoresis painting film in the electrophoresis chamber under the 900us/cm environment, put into after the drip-dry and be cured operation (solidifying: 180 ℃ of temperature, insulation 20 minutes) in the electrophoresis stove, unload the frame packing after finishing.
Embodiment 2
Surface of profile pre-treatment: adopt brightening agent 90g/L to join groove (phosphoric acid 50%, hydrofluoric acid 30%, surface-active ion (aliphatic acid polyethenoxy ether) 5%), normal temperature corroded 3 minutes, joining groove erosion 3 minutes with caustic soda 45g/L, through with in the 185g/L tank liquor and 3 minutes, obtain being better than the bright aluminum alloy active surface of traditional pre-treatment again.The aluminium section bar that advanced pre-treatment immerses anodic oxidation, sulfuric acid 180 grams per liters, temperature: 21 ℃, oxidization time 28 minutes, current density 1.3 peaces/square decimeter obtain water white anode oxide film.
Through three washings, enter staining trough, organic rose-red dyestuff 4g/L is dyeing time 2 minutes under 5.5 the environment in normal temperature pH value, the rear aluminium section bar that obtains dyeing is decided to be rose number.After twice washing, enter the sealing of hole groove, the tank liquor main component: hole sealing agent (acrylic resin), 5-8g/L, Ni
2+: 1.0-2.0g/L, 65 ℃ of temperature, pH:6.5 processed 10 minutes, handled by once washing and entered the electrophoresis operation.。
After the section bar that sealing of hole is good is washed (once pure hot water, 1 st pure water are washed), at the electrocoating paint solid content: 4 grams per liters, pH:7.5, acid number: 3.5, amine value: 3.0, specific conductivity: carry out the electrophoresis painting film in the electrophoresis chamber under the 900us/cm environment, put into after the drip-dry and be cured operation (solidifying: 180 ℃ of temperature, insulation 20 minutes) in the electrophoresis stove, unload the frame packing after finishing.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, therefore every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does according to technical spirit of the present invention.
Claims (7)
1. organic dyeing electrophoresis process of aluminium alloy anode oxide is characterized in that it may further comprise the steps:
1) aluminium alloy anode oxide pre-treatment: at first be that the aluminium section bar that will hang up properly carries out decontamination, oil removal treatment in the tank liquor of rinse bath, through alkaline etching in the alkali groove, through once entering the neutralizing well neutralization after the washing, handle by washing and enter down operation;
2) anodic oxidation generates oxide film: the section bar that pre-treatment is good carries out anodic oxidation treatment in anode oxidation groove liquid;
3) the organic dyeing of normal temperature: will enter organic staining trough through the good section bar of anodic oxidation and carry out the organic dyeing of normal temperature;
4) sealing of the fenestra after the dyeing: will dye lustful section bar and in the sealing of hole groove, carry out the sealing of hole processing;
5) electrophoresis solidifies.
2. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 1, it is characterized in that: in the step 1), the aluminium tank liquor consists of: rinse bath (brightening agent (acidity: phosphoric acid 50%, hydrofluoric acid 30%, surface-active ion 5%, excess water) 90-150 grams per liter), alkali groove (caustic soda 40-50 grams per liter), neutralizing well (sulfuric acid 160-200 grams per liter).
3. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 1 is characterized in that: step 2) in, processing condition are: industrial sulphuric acid (98%): 140-180 grams per liter, temperature: 18-22 ℃, current density 1.2-1.5 peace/square decimeter; According to the period that requires of anode oxide film, handle by 2-3 washing and enter down operation.
4. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 1, it is characterized in that: in the step 3), adopt the processing of dyeing of metallized azo dyestuff, generally prepare tank liquor by 1-5 grams per liter, pH:5.5-6.5, temperature normal temperature, dyeing time 1-3 minute.
5. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 1 is characterized in that: in the step 4), and tank liquor main component: hole sealing agent, 5-8g/L, Ni
2+: 1.0-2.0g/L, temperature 55-65 ℃, pH:6-7 handles by once washing and enters the electrophoresis operation.
6. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 1, it is characterized in that: in the step 5), after the section bar that sealing of hole is good is washed (once pure hot water, 1 st pure water are washed), hang in carry out the electrophoresis painting film in the electrophoresis chamber after, carry out twice washing, put into the drip-dry district, then put in the electrophoresis stove and be cured operation, unload the frame packing after finishing.
7. the organic dyeing electrophoresis process of aluminium alloy anode oxide according to claim 6, it is characterized in that: electrophoresis chamber tank liquor composition is: the electrocoating paint solid content: 3.5-4.5 grams per liter, pH:7.5-8.5, acid number: 3.0-4.0, amine value: 2.0-3.5, specific conductivity: 350-1000S/M; Electrophoresis solidifies, electrophoresis: specific conductivity: 350-1000, electrocoating paint solid content: 3.5-4.5 grams per liter, pH:7.5-8.5, acid number: 3.0-4.0, amine value: 2.0-3.5; Solidify: temperature 180-200 ℃, insulation 20-30 minute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310247088.2A CN103352243B (en) | 2013-06-19 | Aluminium alloy anode oxide organic dye electrophoresis process |
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| CN201310247088.2A CN103352243B (en) | 2013-06-19 | Aluminium alloy anode oxide organic dye electrophoresis process |
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| CN103352243A true CN103352243A (en) | 2013-10-16 |
| CN103352243B CN103352243B (en) | 2016-11-30 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104562142A (en) * | 2014-12-16 | 2015-04-29 | 广东耀银山铝业有限公司 | Anodizing rose bengal electrophoresis process of aluminum alloy |
| CN107130278A (en) * | 2017-05-22 | 2017-09-05 | 深圳市梦之坊通信产品有限公司 | The method for dyeing current mark suppressant additive and aluminum alloy anode dyeing |
| CN107313098A (en) * | 2017-06-20 | 2017-11-03 | 江西剑发铝型材有限公司 | A kind of aluminum alloy surface processing and coloring process |
| CN107811357A (en) * | 2017-11-24 | 2018-03-20 | 深圳市联星服装辅料有限公司 | A kind of aluminium alloy four-part button component and preparation method thereof |
| CN108588780A (en) * | 2017-12-21 | 2018-09-28 | 天津新艾隆科技有限公司 | A kind of production method of tertiary colour aluminium section bar and its aluminium section bar of preparation |
| CN108774745A (en) * | 2018-05-30 | 2018-11-09 | 广东耀银山铝业有限公司 | A kind of easy pole electrophoresis production technology and aluminium section bar obtained |
| CN108950637A (en) * | 2017-05-17 | 2018-12-07 | 中山市恒鑫铝业有限公司 | A kind of anodic oxidation equipment and its technique |
| CN114921829A (en) * | 2022-05-26 | 2022-08-19 | 永臻科技股份有限公司 | Anodic oxidation film forming method for aluminum alloy |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562142A (en) * | 2014-12-16 | 2015-04-29 | 广东耀银山铝业有限公司 | Anodizing rose bengal electrophoresis process of aluminum alloy |
| CN108950637A (en) * | 2017-05-17 | 2018-12-07 | 中山市恒鑫铝业有限公司 | A kind of anodic oxidation equipment and its technique |
| CN107130278A (en) * | 2017-05-22 | 2017-09-05 | 深圳市梦之坊通信产品有限公司 | The method for dyeing current mark suppressant additive and aluminum alloy anode dyeing |
| CN107130278B (en) * | 2017-05-22 | 2019-03-29 | 深圳市梦之坊通信产品有限公司 | The method for dyeing current mark suppressant additive and aluminum alloy anode dyeing |
| CN107313098A (en) * | 2017-06-20 | 2017-11-03 | 江西剑发铝型材有限公司 | A kind of aluminum alloy surface processing and coloring process |
| CN107811357A (en) * | 2017-11-24 | 2018-03-20 | 深圳市联星服装辅料有限公司 | A kind of aluminium alloy four-part button component and preparation method thereof |
| CN108588780A (en) * | 2017-12-21 | 2018-09-28 | 天津新艾隆科技有限公司 | A kind of production method of tertiary colour aluminium section bar and its aluminium section bar of preparation |
| CN108774745A (en) * | 2018-05-30 | 2018-11-09 | 广东耀银山铝业有限公司 | A kind of easy pole electrophoresis production technology and aluminium section bar obtained |
| CN114921829A (en) * | 2022-05-26 | 2022-08-19 | 永臻科技股份有限公司 | Anodic oxidation film forming method for aluminum alloy |
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