CN113481563A - Coloring treatment process for aluminum alloy - Google Patents
Coloring treatment process for aluminum alloy Download PDFInfo
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- CN113481563A CN113481563A CN202110883028.4A CN202110883028A CN113481563A CN 113481563 A CN113481563 A CN 113481563A CN 202110883028 A CN202110883028 A CN 202110883028A CN 113481563 A CN113481563 A CN 113481563A
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- aluminum alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 69
- 238000004040 coloring Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 20
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 238000007639 printing Methods 0.000 claims abstract description 7
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 238000007605 air drying Methods 0.000 claims abstract description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000010147 laser engraving Methods 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 230000003113 alkalizing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 230000000536 complexating effect Effects 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 239000000049 pigment Substances 0.000 abstract description 2
- 238000005238 degreasing Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The technical purpose of the invention is to provide a coloring treatment process for a colored anode aluminum alloy, which can color the surface of the aluminum alloy in multiple colors and integrate pigments and metals through physical coloring and chemical complexing. The method comprises the following steps: degreasing and decontaminating the surface of the aluminum alloy, then performing alkalization treatment and neutralizing the alkalified substance; carrying out chemical polishing on the surface of the aluminum alloy, neutralizing the chemical polished compound, and then carrying out anodic oxidation treatment to generate an aluminum oxide dielectric film layer with micro holes on the surface of the aluminum alloy after anodic oxidation; and printing a colorful process pattern on the surface of the aluminum alloy by adopting weak solvent ink, and carrying out air drying treatment and hole sealing treatment on the surface of the aluminum alloy. The color anode of the invention is applied to the aluminum alloy coloring process of electronic chimney shells, tablet computer shells and other products by carrying out special film forming technology, special hole expanding technology and special hole sealing technology on the anode film layer and consolidating the adhesiveness, compactness and wear resistance of toner.
Description
Technical Field
The invention relates to a metal processing technology, in particular to a coloring technology applied to metal processing.
Background
In the prior art, the conventional anodic oxidation coloring has the limitation of single color, the conventional anodic oxidation can only be used for coloring single color, such as red, orange, yellow, green, cyan, blue, , black, gray and the like, only one color on one oxygen-positive workpiece can be reflected in vision, the multi-color requirements of products cannot be met, the coloring is not firm, and the process problems of easy decolorization and color change occur after the workpiece is used for a period of time; in view of the above, the technical defects of single color and easy aging and discoloration of the anodic oxidation coloring in the art become technical problems to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to overcome the technical problems of difficult fixation and single coloring of anodic oxidation coloring in the surface treatment of aluminum alloy in the prior art, and provides a coloring treatment process for colored anodic aluminum alloy, which can perform multicolor coloring treatment on the surface of aluminum alloy and integrate pigments and metals through physical coloring and chemical complexing.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
the coloring treatment process of the aluminum alloy is characterized by comprising the following steps:
a. deoiling and decontaminating the surface of the aluminum alloy;
b. alkalizing the surface of the aluminum alloy and neutralizing the alkalified substance;
c. chemically polishing the surface of the aluminum alloy and neutralizing the chemically polished compound;
carrying out anodic oxidation treatment on the surface of the aluminum alloy, neutralizing the anodic oxidation chemical, and generating an aluminum oxide dielectric film layer with micro holes on the surface of the aluminum alloy after anodic oxidation;
e. printing a color process pattern on the surface of the aluminum alloy by adopting weak solvent ink through a printer, wherein the color ink enters the tiny holes;
f. and air-drying the surface of the aluminum alloy with the printed colorful patterns.
And further, after the step d and before the step e, performing laser edge sealing pretreatment on the edge of the pre-printed pattern on the surface of the aluminum alloy by using a laser engraving machine.
Further, the coloring process for aluminum alloy according to claim 1, which comprises the steps of: and after the step d and before the step e, performing thermal radiation hole expansion treatment on the pre-printed pattern on the surface of the aluminum alloy by using a laser engraving machine.
Furthermore, in the step a, a titanium hanger with better alkali resistance, acid resistance and electric conductivity is adopted to place the aluminum alloy workpiece.
Further, in the step a, a 15% -30% nitric acid-containing aqueous solution is adopted for cleaning, the nitric acid aqueous solution is heated to 60-70 ℃, the workpiece is soaked for 3-5 minutes, and oil stains and wax stains on the surface of the workpiece are removed.
Further, the fine pores have a diameter of 0.01 to 0.03. mu.m.
Further, the color ink contains dye particles with a diameter of 0.0015 to 0.003 μm.
Anodizing the surface of the aluminum alloy for more than 45 minutes.
200g/L of sodium hydroxide and 50g/L of sodium nitrate
The beneficial technical effects of the invention are as follows: the dye is a dye for complexing metal ions; the negative pressure adsorption of the color ink by the temperature difference can ensure that the color ink is more firmly attached due to expansion with heat and contraction with cold of the holes, and the color ink is printed while evaporating and drying the moisture, and the pattern precision can be improved by pre-sealing the edges. (ii) by physical adsorption of aluminium hydroxide through the porous layer; then chemically complexing to form a chromogenic metal salt; become part of the aluminum alloy. The color anode is subjected to special reaming technology on an anode film layer and special raw film anode parameters to consolidate the adhesiveness, compactness and wear resistance of toner, post-treatment coloring is carried out by using a special printer to add weak solvent ink, and hole sealing treatment is carried out after coloring. And baking the hole after hole sealing by using a baking line.
Drawings
FIG. 1 is a process flow diagram of one embodiment of the present invention.
Detailed Description
The following detailed description will explain specific embodiments of the present invention by referring to specific examples, but not limiting the claims.
According to the invention, a titanium hanger is used for fixing a workpiece, the titanium hanger has good alkali resistance, acid resistance and conductivity resistance, a nitric acid solution prepared by mixing 100L of water with 20L of nitric acid is adopted, the temperature is increased to 60-70 ℃, the workpiece is soaked for 3-5 minutes, oil stains and wax stains on the surface of the workpiece are removed, and the surface of an aluminum alloy is degreased and decontaminated.
Alkalizing the surface of the aluminum alloy and neutralizing the alkalified substance; the alkali washing solution is prepared as follows: dissolving 200g of sodium hydroxide and 50g of sodium nitrate in 1 liter of water; heating to 80-90 ℃, removing a natural oxide layer on the surface of the product, and adjusting the brightness of the surface of the product; or dissolving 380g of sodium hydroxide in 1 liter of water, heating to 80-90 ℃, removing a natural oxide layer on the surface of the product, and adjusting the brightness of the surface of the product; the solution for neutralizing the aluminum alloy surface chemicals after alkali washing is prepared as follows: 1. 30 percent of nitric acid, 2 percent of chromic anhydride and 3 percent of clear water. Neutralizing alkali washing at normal temperature, and removing compounds on the surface after alkali washing.
Chemically polishing the aluminum alloy surface and neutralizing the chemically polished compound; the chemical polishing solution is prepared by the following steps: 1. the method comprises the following steps of (1) soaking a product at 90-110 ℃ with 16 wt% of sulfuric acid (content 98%), 80 wt% of phosphoric acid (content 85%) and 4 wt% of nitric acid (content 98%), and adjusting the brightness of the surface of the product; the solution of the compound that neutralizes the chemical polishing is formulated as: 1. 30 percent of nitric acid, 2 percent of chromic anhydride and 3 percent of clean water; neutralizing the polished compound at normal temperature.
Carrying out anodic oxidation treatment on the surface of the aluminum alloy, neutralizing the anodic oxidation chemicals, carrying out anodic oxidation on the surface of the aluminum alloy for more than 45 minutes, and forming fine holes on the surface of the aluminum alloy; preparing a solution for anodic oxidation: each liter of water contains 150-200 g of sulfuric acid and 10-15 g of alumina solution; the temperature of the solution is controlled at 18-20 ℃, and anodic oxidation treatment is carried out by adopting a refrigerator, a rectifier, a lead plate, a copper plate and PP groove fixing equipment. About 77 hundred million nanometer-scale holes are formed on the anode of each square centimeter of the aluminium surface, and the diameter of each small hole is 0.01-0.03 mu m. Generating an aluminum oxide dielectric film layer with tiny holes on the surface of the aluminum alloy after anodic oxidation; printed and dyed to form the only dyeable metal. The hole is enlarged at normal temperature by preparing a neutralization oxidation acid solution from 30 weight percent of nitric acid, 5 weight percent of chromic anhydride and 65 percent of clear water.
The above procedures adopt ultrasonic equipment for ultrasonic treatment, and can obtain better cleaning and dye attaching effects.
After anodic oxidation treatment is carried out on the surface of the aluminum alloy, cleaning and air drying are carried out, laser edge sealing pretreatment is carried out on the edge of the pre-printed pattern on the surface of the aluminum alloy by adopting a laser engraving machine, when in implementation, the width of the edge sealing can be set to be 0.01mm-1mm, preferably 0.1mm, after the edge sealing, the laser head of the laser engraving machine seals the holes at the edges of the patterns by adopting high temperature, the colored ink can not be dyed in the area beyond the edge of the pattern during printing, thereby greatly improving the definition and the precision of the pattern, when in implementation, the light emitted by the laser head of the laser engraving machine forms an included angle of 20-89 degrees with the surface of the aluminum alloy, the included angle can be arranged towards the inner side of the edge of the pattern, after edge sealing, the holes on the outer edge of the sealed edge are of a half-opening structure which inclines towards the inner side of the pattern, so that the outward permeation of the color ink to the area outside the edge of the pattern is further limited, and the precision of the color process pattern is improved. In addition, the invention adopts a temperature difference process when in implementation, a laser engraving machine is adopted to carry out thermal radiation hole expansion treatment at 60 ℃ to 200 ℃ on a pre-printed pattern on the surface of the aluminum alloy, the pre-printed pattern is printed after the thermal radiation hole expansion treatment, the color ink can be at room temperature, the temperature of the color ink can also be further reduced, the temperature of the color ink is reduced to-10 ℃ to +20 ℃, as the color ink enters the hole when being printed, the material and air rapidly contract cold to form a tiny negative pressure adsorption force, the color ink is better adsorbed into the hole and is further complexed with the aluminum alloy after the material contracts cold, the thermal radiation aluminum alloy rapidly evaporates the moisture in the color ink when encountering the color ink due to the temperature rise under the laser, the rapid drying process which has firm adsorption due to thermal expansion and contraction and can be carried out while drying is carried out, and the requirement of printing a plurality of surfaces on the annular workpiece is avoided, the pattern visual effect is influenced by the ink flow caused by the fact that the annular workpiece is rapidly turned over and the printing ink is not dried.
In the implementation, the weak solvent ink is complex ion nanometer weak solvent color ink, and more preferably, the ink is aqueous weak solvent ink which can pass the test of oily perfume. In the invention, the main component of the weak solvent ink is an organic solvent, ester and ketone solvents are adopted to fuse the aluminum alloy in the process of combining with the aluminum alloy, the colorant in the weak solvent ink is tightly combined with the aluminum alloy, the weak solvent ink does not require a medium to be coated, and the requirement of high-speed printing can be met by adding a temperature difference process. The printer prints colorful craft patterns on the surface of the aluminum alloy, and the colorful patterns attached to the surface of the aluminum alloy are formed through the reaction of complex anions in the weak solvent and aluminum alloy cations. Firm and non-discoloring, durable and suitable for historical collection.
The color ink contains dye particles with a diameter of 0.0015-0.003 μm. The color ink enters the tiny holes; and air-drying the surface of the aluminum alloy with the printed colorful patterns. The ambient temperature was controlled below 26 ℃ and the water was cut with an air knife for 30 minutes.
In the invention, the dye is a dye which complexes metal ions, physically adsorbs aluminium hydroxide through the porous layer, and then chemically complexes into a chromogenic metal salt which becomes a part of the aluminium alloy; and the color anode is subjected to special reaming technology on the anode film layer and special raw film anode parameters to consolidate the adhesiveness, compactness and wear resistance of toner, post-treatment coloring is carried out by using a special printer to add weak solvent ink, and hole sealing treatment is carried out after coloring. And baking the hole after hole sealing by using a baking line.
Claims (9)
1. The coloring treatment process of the aluminum alloy is characterized by comprising the following steps:
deoiling and decontaminating the surface of the aluminum alloy;
alkalizing the surface of the aluminum alloy and neutralizing the alkalified substance;
chemically polishing the surface of the aluminum alloy and neutralizing the chemically polished compound;
carrying out anodic oxidation treatment on the surface of the aluminum alloy, neutralizing the anodic oxidation chemicals, and generating an aluminum oxide dielectric film layer with tiny holes on the surface of the aluminum alloy after anodic oxidation;
printing a color process pattern on the surface of the aluminum alloy by adopting aqueous weak solvent ink through a printer, wherein the color ink enters the tiny holes;
and air-drying the surface of the aluminum alloy with the printed colorful patterns.
2. An aluminum alloy coloring process according to claim 1, wherein: and after the step d and before the step e, performing laser edge sealing pretreatment on the edge of the pre-printed pattern on the surface of the aluminum alloy by using a laser engraving machine.
3. An aluminum alloy coloring process according to claim 1, wherein: and after the step d and before the step e, performing thermal radiation hole expansion treatment on the pre-printed pattern on the surface of the aluminum alloy by using a laser engraving machine.
4. An aluminum alloy coloring process according to claim 1, wherein: and in the step a, a titanium material hanging rack with better alkali resistance, acid resistance and electric conductivity is adopted to place the aluminum alloy workpiece.
5. An aluminum alloy coloring process according to claim 1, wherein: in the step a, a 15% -30% nitric acid-containing aqueous solution is adopted for cleaning, the nitric acid aqueous solution is heated to 60-70 ℃, the workpiece is soaked for 3-5 minutes, and oil stains and wax stains on the surface of the workpiece are removed.
6. An aluminum alloy coloring process according to claim 1, wherein: the diameter of the fine holes is 0.01-0.03 mu m.
7. An aluminum alloy coloring process according to claim 1, wherein: the color ink contains dye particles with the diameter of 0.0015-0.003 mu m.
8. An aluminum alloy coloring process according to claim 1, wherein: in the step d, the surface of the aluminum alloy is anodized for 45 minutes or more.
9. An aluminum alloy coloring process according to claim 1, wherein: and e, adopting water-based ink as the weak solvent ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883028.4A CN113481563B (en) | 2021-08-02 | 2021-08-02 | Aluminum alloy coloring treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883028.4A CN113481563B (en) | 2021-08-02 | 2021-08-02 | Aluminum alloy coloring treatment process |
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| Publication Number | Publication Date |
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| CN113481563A true CN113481563A (en) | 2021-10-08 |
| CN113481563B CN113481563B (en) | 2024-02-27 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741992A (en) * | 1993-07-29 | 1995-02-10 | Pentel Kk | Surface treatment of aluminum or its alloy |
| KR20090058068A (en) * | 2007-12-04 | 2009-06-09 | 김선구 | Aluminum pot had colored intaglio pattern and its processing method |
| US20140061054A1 (en) * | 2012-08-29 | 2014-03-06 | Jack Ye | Anodizing color drawing method |
| CN107813650A (en) * | 2017-10-31 | 2018-03-20 | 中铝东南材料院（福建）科技有限公司 | A kind of high reflective decorative aluminum plate picture and preparation method thereof |
| CN107937960A (en) * | 2017-12-01 | 2018-04-20 | 佛山市高明高盛铝业有限公司 | A kind of aluminium alloy anode oxide technique |
| WO2018121213A1 (en) * | 2016-12-30 | 2018-07-05 | 比亚迪股份有限公司 | Aluminum alloy housing and preparation method therefor and personal electronic device |
| CN109385655A (en) * | 2017-08-03 | 2019-02-26 | 大族激光科技产业集团股份有限公司 | The mark production method of aluminum alloy surface |
| CN112899750A (en) * | 2021-01-14 | 2021-06-04 | 邓宇 | Metal coloring treatment process |
-
2021
- 2021-08-02 CN CN202110883028.4A patent/CN113481563B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741992A (en) * | 1993-07-29 | 1995-02-10 | Pentel Kk | Surface treatment of aluminum or its alloy |
| KR20090058068A (en) * | 2007-12-04 | 2009-06-09 | 김선구 | Aluminum pot had colored intaglio pattern and its processing method |
| US20140061054A1 (en) * | 2012-08-29 | 2014-03-06 | Jack Ye | Anodizing color drawing method |
| WO2018121213A1 (en) * | 2016-12-30 | 2018-07-05 | 比亚迪股份有限公司 | Aluminum alloy housing and preparation method therefor and personal electronic device |
| CN109385655A (en) * | 2017-08-03 | 2019-02-26 | 大族激光科技产业集团股份有限公司 | The mark production method of aluminum alloy surface |
| CN107813650A (en) * | 2017-10-31 | 2018-03-20 | 中铝东南材料院（福建）科技有限公司 | A kind of high reflective decorative aluminum plate picture and preparation method thereof |
| CN107937960A (en) * | 2017-12-01 | 2018-04-20 | 佛山市高明高盛铝业有限公司 | A kind of aluminium alloy anode oxide technique |
| CN112899750A (en) * | 2021-01-14 | 2021-06-04 | 邓宇 | Metal coloring treatment process |
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| CN113481563B (en) | 2024-02-27 |
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