CN105887152A - Aluminum alloy anodic oxidation process - Google Patents
Aluminum alloy anodic oxidation process Download PDFInfo
- Publication number
- CN105887152A CN105887152A CN201610422847.8A CN201610422847A CN105887152A CN 105887152 A CN105887152 A CN 105887152A CN 201610422847 A CN201610422847 A CN 201610422847A CN 105887152 A CN105887152 A CN 105887152A
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- China
- Prior art keywords
- aluminum alloy
- base material
- alloy base
- anode oxide
- aluminium alloy
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
- C25D11/22—Electrolytic after-treatment for colouring layers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The invention provides an aluminum alloy anodic oxidation process. The process comprises the steps that aluminum alloy substrates are put into a 10%-12% sulfuric acid solution for degreasing treatment, and after flushing is conducted, the aluminum alloy substrates are put into sodium hydroxide with the concentration ranging from 60 kg/m<3> to 65 kg/m<3> for alkali cleaning for 2 min to 3 min; after flushing is conducted, mechanical polishing is conducted on the aluminum alloy substrate surfaces; cleaning is conducted with tap water of -10 DEG C and tap water of 80 DEG C alternately; the aluminum alloy substrates are subjected to shining treatment in a 50%-60% nitric acid solution and cleaned; the aluminum alloy substrates are put into an oxidation device taking an oxidation tank as an anode and taking a lead plate as a cathode for anodic oxidation treatment; the aluminum alloy substrates subjected to anodic oxidation treatment are put into a tin salt electrolyte tank for coloring, and after coloring is completed, flushing is conducted with deionized water. The aluminum alloy anodic oxidation process is simple in method and easy to operate and implement, the produced product is stable and reliable in quality, and the aluminum alloy substrates subjected to anodic oxidation process treatment are high in hardness, good in abrasion resistance and corrosion resistance and long in service life.
Description
Technical field
The present invention relates to aluminium alloy technology field, especially relate to a kind of aluminium alloy anode oxide work
Skill.
Background technology
Aluminium alloy owing to having that the density capacity of heat transmission little, electric is strong, that molding machinability is good and excellent is comprehensive
The series of advantages such as performance, have become as usage amount in current industry and are only second to the second largest metal material of iron and steel,
It is one of in non-ferrous metal, usage amount is maximum, application surface is the widest metal material, is widely used in top grade
Construction material, transportation, space flight and aviation and high-end electronic product etc..According to the difference of purposes, aluminum and
Some performance of aluminium alloy is the most preferable, such as its hardness, wearability, decay resistance etc.；For above-mentioned
Defect, carries out surface Hardening Treatment by anodizing technology to aluminum and aluminium alloy, expands aluminum and aluminium alloy
Range of application, extend its service life, but for the 2xxx system containing higher amount copper and 7xxx
It is aerolite, the more copper alloy phase granule contained due to these alloys and the electrochemistry of alloy matrix aluminum
Behavior differs greatly, and easily causes local current in anode oxidation process and concentrates, and shape film forming layer local hole lacks
Fall into, reduce the barrier propterty of oxide-film.Existing aluminium alloy anode oxide complex process, implementation condition is harsh,
The technical capability of operator is required the highest, and, the product quality of production is not sufficiently stable.
Summary of the invention
It is contemplated that overcome defect present in above-mentioned prior art, it is proposed that a kind of aluminium alloy anode oxide
Technique.
The technical scheme is that and be achieved in that:
A kind of aluminium alloy anode oxide technique, comprises the steps:
1. aluminum alloy base material is put in the sulfuric acid solution of 10%-12% and carry out ungrease treatment, take out after 15min；
2. rinse aluminum alloy base material 5-10min with tap water, enable aluminum alloy to substrate surface pH value 5；
3. aluminum alloy base material is put into concentration is 60kg/m3-65kg/m3Sodium hydroxide in 2-3min alkali cleaning；
4. with tap water rinse aluminum alloy base material 3-5min, when aluminum alloy base material surface pH > 5 time take out；
5. aluminum alloy base material surface is mechanically polished；
6. alternately clean with-10 DEG C of tap waters and 80 DEG C of tap waters；
7. by above-mentioned aluminum alloy base material gloss finish in the salpeter solution of 50%-60%；
8. aluminum alloy base material 10min is rinsed with tap water；
9. aluminum alloy base material is put into oxidation trough carry out in anode, oxidation unit with stereotype as negative electrode
Anodized；
10. being put in pink salt electrolytic bath by the aluminum alloy base material of anodized and colour, coloring completes
After, use deionized water rinsing.
Further, when 9. step carries out anodized, control ceiling voltage less than 320V.
Further, described step 9. in electrolyte be contained within anion surfactant.
Further, containing in tartaric acid, phenol sulfonic acid or LOMAR PWA EINECS 246-676-2, at least one adds in described pink salt electrolyte
Add agent.
Further, step 6. in, aluminum alloy base material first carries out heat-seal 15min in boiling water.
Further, after 10. step completes, prepare pore-sealing liquid, to aluminium alloy base with deionized water and Nickel difluoride
Material carries out sealing pores.
Further, before step 1. ungrease treatment, blasting treatment is first carried out.
Further, the temperature that step 9. Anodic Oxidation processes is 18～20 DEG C, and voltage is 8～10V,
Time is 40～50min.
Further, the thickness after step 9. Anodic Oxidation processes is 5～7 μm.
Have employed technique scheme, the invention have the benefit that
Process provided by the present invention is simple, it is easy to operates and implements, and the constant product quality of production can
Lean on, aluminum alloy base material hardness height, wearability and the good corrosion resistance processed by this anode oxidation process, make
Use the life-span long.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
A kind of aluminium alloy anode oxide technique, as it is shown in figure 1, comprise the steps:
1. aluminum alloy base material is put in the sulfuric acid solution of 10%-12% and carry out ungrease treatment, take out after 15min；
2. rinse aluminum alloy base material 5-10min with tap water, enable aluminum alloy to substrate surface pH value 5；
3. aluminum alloy base material is put into concentration is 60kg/m3-65kg/m3Sodium hydroxide in 2-3min alkali cleaning；
4. with tap water rinse aluminum alloy base material 3-5min, when aluminum alloy base material surface pH > 5 time take out；
5. aluminum alloy base material surface is mechanically polished；
6. alternately clean with-10 DEG C of tap waters and 80 DEG C of tap waters；
7. by above-mentioned aluminum alloy base material gloss finish in the salpeter solution of 50%-60%；
8. aluminum alloy base material 10min is rinsed with tap water；
9. aluminum alloy base material is put into oxidation trough carry out in anode, oxidation unit with stereotype as negative electrode
Anodized；
10. being put in pink salt electrolytic bath by the aluminum alloy base material of anodized and colour, coloring completes
After, with deionized water rinsing, after cleaning after drying.
In order to ensure the quality of oxidation processes, when 9. step carries out anodized, control ceiling voltage
Less than 320V, and, during oxidation processes, in its electrolyte, it is added with anion surfactant.
Wherein, containing at least one additive in tartaric acid, phenol sulfonic acid or LOMAR PWA EINECS 246-676-2 in described pink salt electrolyte.
Step 6. in, aluminum alloy base material first carries out heat-seal 15min in boiling water, the most again hot and cold water replace into
Row cleans, and is beneficial to aluminum alloy base material gloss finish below.
After 10. step completes, prepare pore-sealing liquid with deionized water and Nickel difluoride, aluminum alloy base material is sealed
Hole processes.
It should be noted that can first carry out blasting treatment before step 1. ungrease treatment, remove aluminium alloy base
The oxide layer on material surface.
Step 9. Anodic Oxidation process temperature be 18～20 DEG C, voltage is 8～10V, the time be 40～
50min.The oxide thickness on the surface after aluminum alloy base material anodized is 5～7 μm.
As a comparative example of the technical program, comprise the steps:
1. aluminum alloy base material is put in the sulfuric acid solution of 7%-9% and carry out ungrease treatment, take out after 10min；
2. rinse aluminum alloy base material 5-10min with tap water, enable aluminum alloy to substrate surface pH value 6；
3. aluminum alloy base material is put into concentration is 50kg/m3-55kg/m3Sodium hydroxide in 2-3min alkali cleaning；
4. with tap water rinse aluminum alloy base material 3-5min, when aluminum alloy base material surface pH > 6 time take out；
5. aluminum alloy base material surface is mechanically polished；
6. alternately clean with-10 DEG C of tap waters and 80 DEG C of tap waters；
7. by above-mentioned aluminum alloy base material gloss finish in the salpeter solution of 30%-45%；
8. aluminum alloy base material 10min is rinsed with tap water；
9. aluminum alloy base material is put into oxidation trough carry out in anode, oxidation unit with stereotype as negative electrode
Anodized；
10. being put in pink salt electrolytic bath by the aluminum alloy base material of anodized and colour, coloring completes
After, with deionized water rinsing, after cleaning after drying.
Through Experimental Comparison, the aluminum alloy base material hardness processed by anode oxidation process provided by the present invention
Height, wearability and good corrosion resistance, service life is long.Meanwhile, this process is simple, has and is prone to behaviour
Make and implement, produce the features such as constant product quality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (9)
1. an aluminium alloy anode oxide technique, it is characterised in that comprise the steps:
1. aluminum alloy base material is put in the sulfuric acid solution of 10%-12% and carry out ungrease treatment, take out after 15min；
2. rinse aluminum alloy base material 5-10min with tap water, enable aluminum alloy to substrate surface pH value 5；
3. aluminum alloy base material is put into concentration is 60kg/m3-65kg/m3Sodium hydroxide in 2-3min alkali cleaning；
4. with tap water rinse aluminum alloy base material 3-5min, when aluminum alloy base material surface pH > 5 time take out；
5. aluminum alloy base material surface is mechanically polished；
6. alternately clean with-10 DEG C of tap waters and 80 DEG C of tap waters；
7. by above-mentioned aluminum alloy base material gloss finish in the salpeter solution of 50%-60%；
8. aluminum alloy base material 10min is rinsed with tap water；
9. aluminum alloy base material is put into oxidation trough carry out in anode, oxidation unit with stereotype as negative electrode
Anodized；
10. being put in pink salt electrolytic bath by the aluminum alloy base material of anodized and colour, coloring completes
After, use deionized water rinsing.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: in step
When 9. carrying out anodized, control ceiling voltage less than 320V.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: described step
The most 9. the electrolyte in is contained within anion surfactant.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: described
Containing at least one additive in tartaric acid, phenol sulfonic acid or LOMAR PWA EINECS 246-676-2 in pink salt electrolyte.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: step is 6.
In, aluminum alloy base material first carries out heat-seal 15min in boiling water.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: in step
10., after completing, prepare pore-sealing liquid with deionized water and Nickel difluoride, aluminum alloy base material is carried out sealing pores.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: in step
1. blasting treatment is first carried out before ungrease treatment.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: step is 9.
The temperature that Anodic Oxidation processes is 18～20 DEG C, and voltage is 8～10V, and the time is 40～50min.
A kind of aluminium alloy anode oxide technique the most according to claim 1, it is characterised in that: step is 9.
Thickness after Anodic Oxidation processes is 5～7 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422847.8A CN105887152A (en) | 2016-06-15 | 2016-06-15 | Aluminum alloy anodic oxidation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422847.8A CN105887152A (en) | 2016-06-15 | 2016-06-15 | Aluminum alloy anodic oxidation process |
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| CN105887152A true CN105887152A (en) | 2016-08-24 |
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| CN201610422847.8A Pending CN105887152A (en) | 2016-06-15 | 2016-06-15 | Aluminum alloy anodic oxidation process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498471A (en) * | 2016-11-30 | 2017-03-15 | 宿州市协成金属材料有限公司 | A kind of preparation technology of embossed aluminium coiled material |
| CN108018590A (en) * | 2018-03-19 | 2018-05-11 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN108034980A (en) * | 2017-11-27 | 2018-05-15 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, the method with the device to aluminium shape surface plated film |
| CN109183119A (en) * | 2018-08-07 | 2019-01-11 | 江苏锦绣铝业有限公司 | A kind of aluminium and aluminium alloy electrolytic coloring list pink salt technique |
| CN112210809A (en) * | 2020-09-29 | 2021-01-12 | 九牧厨卫股份有限公司 | Preparation method of silver oxide film |
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| CN101845654A (en) * | 2009-03-23 | 2010-09-29 | 浙江帝龙新材料股份有限公司 | Aluminum strip anode oxidization process |
| JP2013007762A (en) * | 2011-05-20 | 2013-01-10 | Nippon Light Metal Co Ltd | Method for manufacturing support frame for pellicle, support frame for pellicle, and pellicle |
| CN103194777A (en) * | 2013-03-27 | 2013-07-10 | 成都阳光铝制品有限公司 | Process for anodizing aluminum-alloy substrate |
| CN104313660A (en) * | 2014-10-31 | 2015-01-28 | 湖州织里天荣铝材添加剂厂 | Novel aluminum alloy tin salt coloring process and coloring solution |
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Patent Citations (5)
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| CN1303957A (en) * | 2000-01-13 | 2001-07-18 | 沈阳黎明铝门窗工程公司 | Artificial stainless steel colour electro-colour process for aluminium sections |
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| JP2013007762A (en) * | 2011-05-20 | 2013-01-10 | Nippon Light Metal Co Ltd | Method for manufacturing support frame for pellicle, support frame for pellicle, and pellicle |
| CN103194777A (en) * | 2013-03-27 | 2013-07-10 | 成都阳光铝制品有限公司 | Process for anodizing aluminum-alloy substrate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498471A (en) * | 2016-11-30 | 2017-03-15 | 宿州市协成金属材料有限公司 | A kind of preparation technology of embossed aluminium coiled material |
| CN108034980A (en) * | 2017-11-27 | 2018-05-15 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, the method with the device to aluminium shape surface plated film |
| CN108034980B (en) * | 2017-11-27 | 2019-04-26 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, with the device to the method for aluminium shape surface plated film |
| CN108018590A (en) * | 2018-03-19 | 2018-05-11 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN108018590B (en) * | 2018-03-19 | 2019-06-25 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN109183119A (en) * | 2018-08-07 | 2019-01-11 | 江苏锦绣铝业有限公司 | A kind of aluminium and aluminium alloy electrolytic coloring list pink salt technique |
| CN112210809A (en) * | 2020-09-29 | 2021-01-12 | 九牧厨卫股份有限公司 | Preparation method of silver oxide film |
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Application publication date: 20160824 |
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