CN111501077A - Anodic oxidation gradient color coloring method for metal workpiece - Google Patents
Anodic oxidation gradient color coloring method for metal workpiece Download PDFInfo
- Publication number
- CN111501077A CN111501077A CN202010350683.9A CN202010350683A CN111501077A CN 111501077 A CN111501077 A CN 111501077A CN 202010350683 A CN202010350683 A CN 202010350683A CN 111501077 A CN111501077 A CN 111501077A
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- metal workpiece
- coloring
- anodic oxidation
- workpiece
- treatment
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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
- C25D11/12—Anodising more than once, e.g. in different baths
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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
- C25D11/14—Producing integrally coloured layers
-
- 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
- C25D11/26—Anodisation of refractory metals 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
- C25D11/30—Anodisation of magnesium or alloys based thereon
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
Abstract
The invention provides an anodic oxidation gradual change coloring method of a metal workpiece, wherein the metal workpiece comprises a coloring surface, and the method comprises the following steps: (a) performing surface pretreatment on the metal workpiece; (b) carrying out anodic oxidation treatment on the metal workpiece to form an anodic oxidation film containing dense micropores on the surface of the metal workpiece; (c) providing a first coloring liquid, and carrying out uniform ground color coloring treatment on the metal workpiece subjected to anodic oxidation for the first time; (d) providing a second coloring liquid, performing secondary color-gradient coloring treatment on the metal workpiece after anodic oxidation, and gradually changing the time for the second coloring liquid to contact the metal workpiece along the preset direction of the coloring surface of the sample so as to gradually change the number of dye molecules entering the holes of the anodic oxidation film at different positions; (e) and c, rinsing the metal workpiece colored in the step c and the step d, sealing holes and drying. The method has low cost and simple process, and is not limited by the shape of the workpiece.
Description
Technical Field
The invention provides an anodic oxidation coloring process for a metal workpiece, and particularly relates to an anodic oxidation gradient color coloring method for the metal workpiece.
Background
At present, electronic products adopting metal workpieces such as aluminum/aluminum alloy, magnesium/magnesium alloy or titanium/titanium alloy and the like are subjected to surface treatment process, usually, dyeing is carried out after anodic oxidation, the color and the texture are excellent, and the process is mature and reliable.
Dyeing after anodic oxidation is the most common surface treatment process for pure metals or alloys, but the color obtained by the common dyeing process is single, the diversification of the color is difficult to realize, and the degree of freedom of product design is reduced. Therefore, there is a need to provide a novel anodic oxidation dyeing method capable of realizing gradient on the surface of a metal workpiece such as aluminum/aluminum alloy, magnesium/magnesium alloy or titanium/titanium alloy.
At present, the technical scheme for realizing the gradual color change of the anodic oxidation is a pulling method, namely, a sample is placed in a dyeing pool after the anodic oxidation, then the sample is gradually pulled to leave the dyeing pool, the lower part with longer soaking time is dark color, and the upper part is light color. The method is not easy to control, and has certain limitation on the appearance size of the sample, for example, the difficulty in realizing the gradual change effect of a long sample on a narrow short edge is very high, the sample needs to be kept horizontal in the moving process, and meanwhile, the tool bracket needs to keep high stability in the moving process, so that the difficulty in realizing the process of the lifting scheme is increased by the difficulty.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one objective of the present invention is to provide an anodizing gradient coloring method for a metal workpiece, which provides a low-cost process solution, is simple and convenient in process, has high efficiency, and is not limited by the shape of the workpiece.
In order to realize the purpose, the method adopted by the invention comprises the following steps: an anodic oxidation gradual color change coloring method for a metal workpiece, the metal workpiece comprises a coloring surface, and the specific implementation steps are as follows:
(a) performing surface pretreatment on the metal workpiece;
(b) carrying out anodic oxidation treatment on the metal workpiece to form an anodic oxidation film containing dense micropores on the surface of the metal workpiece;
(c) providing a first coloring liquid, and carrying out uniform ground color coloring treatment on the metal workpiece subjected to anodic oxidation for the first time;
(d) providing a second coloring liquid, performing secondary color-gradient coloring treatment on the metal workpiece after anodic oxidation, and gradually changing the time for the second coloring liquid to contact the metal workpiece along the preset direction of the coloring surface of the sample so as to gradually change the number of dye molecules entering the holes of the anodic oxidation film at different positions;
(e) and c, rinsing the metal workpiece colored in the step c and the step d, sealing holes and drying to protect the formed dyeing effect.
In some embodiments of the present invention, a first uniform coloring treatment is performed before the metal workpiece is colored in a gradual manner, and a hole sealing treatment is not performed after the coloring is completed, so as to provide a storage channel for dye molecules to realize subsequent coloring.
In some embodiments of the invention, the anodic oxidation gradient coloring method of the metal workpiece controls the concentration of the dye entering the film hole to gradually change in the depth direction by controlling the liquid level of the second coloring liquid to gradually decrease, so as to realize a preset gradient color effect on the surface of the metal workpiece; the mode of discharging coloring liquid at a designed speed to realize liquid level height reduction is easy to control, the cost is low, and the influence of the modeling size of a workpiece is avoided.
Preferably, the liquid level is lowered at a constant or variable speed during the coloring process, and the lowering speed depends on the width of the gradient color area required on the coloring surface of the metal workpiece and the color depth at the end of coloring.
Preferably, the middle edge or other predetermined position of the metal workpiece at the beginning of the coloring process is flush with the coloring liquid level, and when the preset final color depth is reached, the lowermost edge of the metal workpiece is separated from the coloring liquid at this time.
In some embodiments of the present invention, after the step c, the anodized metal workpiece is placed on a horizontal-adjusted tool bracket.
In some embodiments of the present invention, before the step d, the metal workpiece after being anodized is placed horizontally and stably, and then the second coloring liquid is gradually discharged from the dyeing tank at a set rate, so that the liquid level position where the second coloring liquid contacts the workpiece is lowered at a constant speed or a variable speed, and is separated from the metal workpiece at a set time point.
In some embodiments of the present invention, the surface pretreatment of the metal workpiece specifically comprises: wire drawing, sand blasting or mechanical polishing, and surface chemical pretreatment comprising a combination of one or more of chemical degreasing and chemical caustic washing treatments.
In some embodiments of the invention, the metal workpiece is a pure metal or an alloy comprising at least aluminum, an aluminum alloy, magnesium, a magnesium alloy, titanium, a titanium alloy.
In some embodiments of the present invention, the aluminum alloy lower front shell is surface-treated by the anodic oxidation gradient color coloring method of claims 1 to 6.
In the coloring process, the metal workpiece keeps the spatial position fixed, the liquid level of the coloring liquid changes gradually, the method is not limited by the product shape, the coloring effect with natural transition and beautiful appearance can be obtained, and the method is simple to operate, has lower cost and is easy to realize mass production.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic perspective view of a metal workpiece using the method of the present invention;
FIG. 2 is a schematic flow diagram of a surface treatment method according to an embodiment of the invention;
FIG. 3 is a schematic view of a structure of a gradient dyeing apparatus designed by the method of the present invention;
FIG. 4 is a schematic view of an aluminum alloy workpiece having a gradient color effect obtained by the method of the present invention;
reference numerals:
a metal workpiece 100;
a colored surface 101;
a tooling bracket 301;
a second coloring liquid 302;
coloring liquid level 303;
a water pump 304;
a programmable liquid flow rate control valve 305;
an upper gradient dyeing tank 306;
a lower coloring liquid storage tank 307;
a three-dimensional schematic 308 of a gradient color coloring apparatus.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first aspect of the present invention provides an anodic oxidation gradient coloring method. Referring to fig. 1, the metal workpiece 100 is subjected to the anodic oxidation color-gradient coloring method of the invention, wherein the metal workpiece 100 is made of aluminum alloy, and besides aluminum alloy, the metal workpiece according to the invention also includes pure metals or alloys such as aluminum, magnesium alloy, titanium alloy, etc.; the workpiece is in a long strip shape, wherein 101 is an appearance colored surface, and the upper and lower directions indicated in the embodiment are along the width direction of the strip-shaped metal workpiece.
The anodic oxidation gradient color coloring method comprises the following steps:
step a, performing surface pretreatment on a metal workpiece;
the main processes and purposes are as follows:
1) the surface is subjected to wire drawing, polishing or sand blasting, the surface state of a base material of a metal workpiece can be changed, good appearance conditions are provided, the surface finishing quality and the product grade are improved, meanwhile, a proper decoration effect is generated, and preparation is made for the next surface pretreatment;
2) surface chemical pretreatment, including surface degreasing and surface alkaline washing, mainly aiming at removing oil and grease, pollutants, natural oxidation films and other pollutants on the surface of a metal workpiece and obtaining a clean surface for the next anodic oxidation process;
b, carrying out anodic oxidation treatment on the metal workpiece to form an anodic oxidation film containing dense micropores on the surface of the metal workpiece;
the anodic oxidation mode adopted in the embodiment of the invention is sulfuric acid direct current anodic oxidation, and the process has the advantages of low cost and good film forming property and is suitable for subsequent dyeing. Placing aluminum alloy as an anode in sulfuric acid electrolyte, switching on a direct current power supply, and adjusting the applied voltage and the oxidation time to obtain an anodic oxidation film with a certain thickness, wherein the film is provided with a microporous structure for dye molecules to enter, so that subsequent dyeing can be realized; it should be noted that, in addition to the direct current anodic oxidation of sulfuric acid, the anodic oxidation process may be selected as alternating current anodic oxidation or pulse anodic oxidation according to different materials of the metal workpiece, and the electrolyte may be selected as chromic anhydride-based electrolyte or phosphate-based electrolyte.
Step c, providing a first coloring liquid, and carrying out uniform ground color coloring treatment on the metal workpiece subjected to anodic oxidation for the first time;
specifically, in the first coloring treatment, the metal workpiece after the anodic oxidation is completely placed in a dyeing solution, the dyeing solution is prepared from an organic dye, dye molecules enter micropores formed by the anodic oxidation in the step b under the actions of physical adsorption and chemical adsorption, and therefore a uniform dyeing effect is achieved.
Step d, providing a second coloring liquid, performing secondary color-gradient coloring treatment on the metal workpiece subjected to anodic oxidation, and gradually changing the time for which the second coloring liquid contacts the metal workpiece along the preset direction of the coloring surface of the sample so as to gradually change the number of dye molecules entering the holes of the anodic oxidation film at different positions;
specifically, the second coloring treatment is to place the metal workpiece with uniform background color on a tool bracket of a specially designed gradient color coloring device. As shown in fig. 3, 100 is a metal workpiece placed side by side, 301 is a tool bracket for fixing 100 metal workpieces, a level gauge and a level adjusting device are arranged on the bracket, and the levelness of the workpieces is controlled to be less than 0.2 mm/m. 301 and 302 indicate the body of the staining solution and the liquid level of the staining solution, respectively; 304 is a water pumping device which can transfer the staining solution in the staining solution storage pool 307 at the lower part to the gradual change staining pool 306 at the upper part; 305 is a programmable liquid flow rate valve that controls the flow of the staining solution at a set rate in 306 and returns to 307. In the embodiment of the invention, the coloring surface 101 of the metal workpiece is placed on the tool bracket perpendicular to the coloring liquid, the liquid level is at the preset position of the coloring surface when the coloring is started, then the dyeing liquid in 306 is gradually discharged at the speed curve programmed in advance, so that the liquid level is gradually reduced, the contact time of the coloring surface 101 and the dyeing liquid is gradually increased from top to bottom, and the number of dye molecules entering the holes of the anodic oxide film is gradually increased from top to bottom. It should be noted that the rate of the dyeing liquid flowing out 306 may be constant or variable. When the liquid level is separated from the metal workpiece 100, the dyeing is finished, at this time, the workpiece can be taken down, and the workpiece is stored 306 to the set height again by using a 304 water pump, so that the next round of dyeing can be started. The coloring method can enable the surface of the metal workpiece 101 to show a gradient effect, and the method is low in cost, simple and convenient to control and suitable for industrial mass production.
And e, rinsing the metal workpiece colored in the step c and the step d, sealing holes and drying to protect the formed dyeing effect.
Rinsing, hole sealing and drying, cleaning the dyed metal workpiece by using deionized water, then placing the metal workpiece in boiling water with neutral acid and alkali for 20 minutes to finish hole sealing, and then taking out and drying, wherein the pH value of the weakly alkaline boiling water is 6-8.
In some embodiments of the present invention, a first uniform coloring process is performed before the metal workpiece is colored in a gradual manner, and no hole sealing process is performed after the coloring process is completed.
In some embodiments of the present invention, after step c, the anodized metal workpiece is placed on a leveling tool holder.
In some embodiments of the present invention, before step d, the anodized metal workpiece is placed horizontally and stably, and then the second coloring liquid is gradually discharged from the dyeing tank at a predetermined rate, so that the liquid level position of the second coloring liquid contacting the workpiece is lowered at a constant or variable speed and is separated from the metal workpiece at a predetermined time point.
In some embodiments of the present invention, the surface pretreatment of the metal workpiece specifically comprises: wire drawing, sand blasting or mechanical polishing, and surface chemical pretreatment comprising a combination of one or more of chemical degreasing and chemical caustic cleaning.
In some embodiments of the invention, the metal workpiece is a pure metal or an alloy comprising at least aluminum, an aluminum alloy, magnesium, a magnesium alloy, titanium, a titanium alloy.
The invention provides a television aluminum alloy lower front shell, which is subjected to surface treatment by adopting the anodic oxidation gradient coloring method.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "include" and "comprise," as well as derivatives thereof, mean inclusion without limitation.
It should be particularly noted that in the above description of the present invention application, terms such as: the positions or orientations indicated by "length", "width", "upper", "lower", etc. are based on the position and orientation relationships shown in the drawings, are only for convenience of description and simplification of the application, and do not indicate or imply that the indicated devices and samples must be constructed in the above orientations and positions, or in a particular orientation, and therefore, should not be construed as limiting the application.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A method of anodically coloring a metal workpiece, the metal workpiece including a colored surface, the method comprising the steps of:
(a) performing surface pretreatment on the metal workpiece;
(b) carrying out anodic oxidation treatment on the metal workpiece to form an anodic oxidation film containing dense micropores on the surface of the metal workpiece;
(c) providing a first coloring liquid, and carrying out uniform ground color coloring treatment on the metal workpiece subjected to anodic oxidation for the first time;
(d) providing a second coloring liquid, performing secondary color-gradient coloring treatment on the metal workpiece after anodic oxidation, and gradually changing the time for the second coloring liquid to contact the metal workpiece along the preset direction of the coloring surface of the sample so as to gradually change the number of dye molecules entering the holes of the anodic oxidation film at different positions;
(e) and c, rinsing the metal workpiece colored in the step c and the step d, sealing holes and drying to protect the formed dyeing effect.
2. The anodic oxidation gradient coloring method according to claim 1, characterized in that: and carrying out first uniform coloring treatment before the gradual change coloring of the metal workpiece, and not carrying out hole sealing treatment after the coloring is finished.
3. The anodic oxidation gradient color coloring method of a metal workpiece according to claim 1, characterized in that: and c, placing the metal workpiece after anodic oxidation on a tool bracket with the horizontal adjustment.
4. The anodic oxidation gradient color coloring method according to claim 2, characterized in that: before the step d, the metal workpiece after anodic oxidation is placed horizontally and stably, and then the second coloring liquid is gradually discharged from the dyeing tank at a set speed, so that the liquid level position of the second coloring liquid contacting the workpiece is lowered at a constant speed or a variable speed, and is separated from the metal workpiece at a set time point.
5. The anodic oxidation gradient coloring method according to claim 1, characterized in that: the surface pretreatment of the metal workpiece specifically comprises the following steps: wire drawing, sand blasting or mechanical polishing, and surface chemical pretreatment comprising a combination of one or more of chemical degreasing and chemical caustic washing treatments.
6. The anodic oxidation gradient coloring method according to claim 1, characterized in that: the metal workpiece is a pure metal or an alloy containing at least aluminum, an aluminum alloy, magnesium, a magnesium alloy, titanium, a titanium alloy.
7. The utility model provides a TV aluminum alloy front shell under which characterized in that: the aluminum alloy lower front shell is subjected to surface treatment by the anodic oxidation gradient color coloring method in the claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010350683.9A CN111501077A (en) | 2020-04-28 | 2020-04-28 | Anodic oxidation gradient color coloring method for metal workpiece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010350683.9A CN111501077A (en) | 2020-04-28 | 2020-04-28 | Anodic oxidation gradient color coloring method for metal workpiece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531960A (en) * | 2018-03-30 | 2018-09-14 | 维沃移动通信有限公司 | A kind of aluminium alloy component colouring method and shell |
| CN112981492A (en) * | 2021-03-15 | 2021-06-18 | 福建欧仕儿童用品股份有限公司 | Gradient car frame tube process method |
| CN114197008A (en) * | 2022-01-08 | 2022-03-18 | 东莞市虹桥五金有限公司 | Graded-color anodic oxidation equipment and technology thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698494A (en) * | 1980-01-08 | 1981-08-07 | Tateyama Alum Kogyo Kk | Surface treatment of aluminum or aluminum alloy |
| JP2003277990A (en) * | 2002-03-20 | 2003-10-02 | Toyota Motor Corp | Electrolytic coloring method for aluminum member |
| CN101717985A (en) * | 2009-12-11 | 2010-06-02 | 罗先锋 | Electrophoresis coating method for forming gradient color or natural color on surface of workpiece |
| CN101768770A (en) * | 2009-01-06 | 2010-07-07 | 比亚迪股份有限公司 | Composite material and preparation method thereof |
| JP2010270350A (en) * | 2009-05-19 | 2010-12-02 | Nikon Corp | Method of coloring anodized coating and colored member |
| CN102634830A (en) * | 2011-02-11 | 2012-08-15 | 可成科技股份有限公司 | Method for gradient dyeing of metal material surface |
| TW201233849A (en) * | 2011-02-01 | 2012-08-16 | Catcher Technology Co Ltd | A method for gradient dyeing on surfaces of metal materials |
| CN102645682A (en) * | 2012-04-26 | 2012-08-22 | 厦门雅瑞光学有限公司 | Dyeing method and dyeing device of gradient eyeglass |
| CN102691085A (en) * | 2011-03-23 | 2012-09-26 | 汉达精密电子(昆山)有限公司 | Manufacturing method of aluminum alloy appearance piece |
| CN103320833A (en) * | 2012-03-22 | 2013-09-25 | 富泰华工业（深圳）有限公司 | Anode oxidation dyeing method for metal work-piece |
| CN107043952A (en) * | 2017-03-27 | 2017-08-15 | 东莞智富五金制品有限公司 | A kind of progressive coloured oxidation smart machine |
| CN107151812A (en) * | 2017-05-11 | 2017-09-12 | 深圳市信利特金属有限公司 | Aluminum alloy surface color-grading technique |
-
2020
- 2020-04-28 CN CN202010350683.9A patent/CN111501077A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698494A (en) * | 1980-01-08 | 1981-08-07 | Tateyama Alum Kogyo Kk | Surface treatment of aluminum or aluminum alloy |
| JP2003277990A (en) * | 2002-03-20 | 2003-10-02 | Toyota Motor Corp | Electrolytic coloring method for aluminum member |
| CN101768770A (en) * | 2009-01-06 | 2010-07-07 | 比亚迪股份有限公司 | Composite material and preparation method thereof |
| JP2010270350A (en) * | 2009-05-19 | 2010-12-02 | Nikon Corp | Method of coloring anodized coating and colored member |
| CN101717985A (en) * | 2009-12-11 | 2010-06-02 | 罗先锋 | Electrophoresis coating method for forming gradient color or natural color on surface of workpiece |
| TW201233849A (en) * | 2011-02-01 | 2012-08-16 | Catcher Technology Co Ltd | A method for gradient dyeing on surfaces of metal materials |
| CN102634830A (en) * | 2011-02-11 | 2012-08-15 | 可成科技股份有限公司 | Method for gradient dyeing of metal material surface |
| CN102691085A (en) * | 2011-03-23 | 2012-09-26 | 汉达精密电子(昆山)有限公司 | Manufacturing method of aluminum alloy appearance piece |
| CN103320833A (en) * | 2012-03-22 | 2013-09-25 | 富泰华工业（深圳）有限公司 | Anode oxidation dyeing method for metal work-piece |
| CN102645682A (en) * | 2012-04-26 | 2012-08-22 | 厦门雅瑞光学有限公司 | Dyeing method and dyeing device of gradient eyeglass |
| CN107043952A (en) * | 2017-03-27 | 2017-08-15 | 东莞智富五金制品有限公司 | A kind of progressive coloured oxidation smart machine |
| CN107151812A (en) * | 2017-05-11 | 2017-09-12 | 深圳市信利特金属有限公司 | Aluminum alloy surface color-grading technique |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531960A (en) * | 2018-03-30 | 2018-09-14 | 维沃移动通信有限公司 | A kind of aluminium alloy component colouring method and shell |
| CN108531960B (en) * | 2018-03-30 | 2021-01-08 | 维沃移动通信有限公司 | Aluminum alloy component dyeing method and shell |
| CN112981492A (en) * | 2021-03-15 | 2021-06-18 | 福建欧仕儿童用品股份有限公司 | Gradient car frame tube process method |
| CN114197008A (en) * | 2022-01-08 | 2022-03-18 | 东莞市虹桥五金有限公司 | Graded-color anodic oxidation equipment and technology thereof |
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Application publication date: 20200807 |
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