CN103112308A - Photo-chromic method of workpiece surface - Google Patents
Photo-chromic method of workpiece surface Download PDFInfo
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- CN103112308A CN103112308A CN2011103748612A CN201110374861A CN103112308A CN 103112308 A CN103112308 A CN 103112308A CN 2011103748612 A CN2011103748612 A CN 2011103748612A CN 201110374861 A CN201110374861 A CN 201110374861A CN 103112308 A CN103112308 A CN 103112308A
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Abstract
The invention discloses a photo-chromic method of a workpiece surface. The photo-chromic method disclosed by the invention comprises the following steps: providing a workpiece, wherein a color layer is formed on the surface of the work piece; horizontally placing or obliquely placing the workpiece with the color layer on a platform; providing a light source and arranging the light source above the workpiece; and providing light through the light source and lighting the surface of the work piece for a predetermined time, so that the color layer generates change of colors, wherein in the case of horizontally placing the work piece, at least one shielding part can be further provided and located between the light source and the workpiece. According to the photo-chromic method of the workpiece surface, the surface of the workpiece (the shell) is lighted by the light, so that different colors or gradation colors can be generated, the metal luster and the metal touch sense of the metal shells can be maintained and the smoothness of the surface is not broken.
Description
Technical field
The present invention relates to a kind of photochromic method of surface of the work, refer to especially shine surface in workpiece with light, utilize light to destroy the molecule of chromatograph, and make the surface of workpiece produce the method for different colours.
Background technology
Portable electric product is very universal now, such as mobile phone, personal digital assistant, computer etc.Therefore the consumer more and more pays attention to its outward appearance, and the housing of various electronic products has the surface, particularly metal surface of light usually, and in addition multiple formality, make it have attracting smooth surface and gloss usually.
For the surface coloring at housing, known technology is utilized anode to process in the metal surface and is formed oxide-film and colorific method at present.This kind mode only limits to solid color, is difficult for producing gradual layer color or the variation of polychrome.Process through anode the oxide-film that produces and to produce different colours because thickness is different, thickness is decided by concentration of electrolyte, voltage and current strength, and many factors such as electrolysis time, if form the oxide-film of different-thickness or change colouring method on same housing to produce different colours, in fact very difficult.
For same aluminium type workpiece is processed into two kinds of colors, utilize adhesive film type to carry out the method for spraying paint for twice on the material workpiece at present, spraying paint for the first time and after solidifying, must adopt pad pasting to hide a part, spraying another part, dyestripping then is in order to obtain two kinds of colors.Yet said process is loaded down with trivial details time-consuming, and pad pasting easily affects the quality of spraying paint, and sprays paint in addition and also can affect the metal-like of surface of the work.
Therefore how producing different colours or gradual layer color on the surface of housing, and have metallic luster, and metal sense of touch, is that the present invention wants the problem that solves.
Summary of the invention
Technical problem to be solved by this invention is, a kind of photochromic method of surface of the work is provided, and produces different colours or gradual layer color on the surface of workpiece, and has metallic luster, and metal sense of touch.
In order to solve the problems of the technologies described above, according to wherein a kind of scheme of the present invention, provide a kind of photochromic method of surface of the work, comprise following step:
(a) provide a workpiece;
(b) form a chromatograph in the surface of this workpiece;
(c) storing has this workpiece of this chromatograph on a platform;
(d) provide a light source, be located at the top of this workpiece; And
(e) provide light by this light source, shine in this surface of this workpiece and reach a predetermined time, make the colorific variation of this chromatograph.
The present invention has following beneficial effect at least, and the present invention is radiated at the surface of workpiece (housing) to produce different colours or gradual layer color with light, can keep its metallic luster, reach the metal sense of touch in metal shell, can not destroy the smooth of its surface.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of the photochromic method of surface of the work of the present invention.
Fig. 2 is the structural representation of the second embodiment of the photochromic method of surface of the work of the present invention.
Fig. 3 is the structural representation of the 3rd embodiment of the photochromic method of surface of the work of the present invention.
Fig. 4 is the structural representation of the 4th embodiment of the photochromic method of surface of the work of the present invention.
Fig. 5 is the schematic diagram of the 5th embodiment of the photochromic method of surface of the work of the present invention.
Fig. 6 is the schematic diagram of the 6th embodiment of the photochromic method of surface of the work of the present invention.
Wherein, description of reference numerals is as follows:
Chromatograph 200 colors 201,202
Covering 30,30a, 30b
Hollow-out parts 305
Fixture 32
Shelter 301,302 shades 304
Holder 512
Hinge means 54
Distance B 1, D2
The specific embodiment
Reach in order further to understand the present invention technology, method and the effect that set purpose is taked, see also following relevant detailed description of the present invention, accompanying drawing, believe purpose of the present invention, feature and characteristics, when being goed deep into thus and concrete understanding, yet accompanying drawing and annex only provide the use of reference with explanation, and the present invention is limited.
The first embodiment:
Please refer to Fig. 1, it is the structural representation of the first embodiment of the photochromic method of surface of the work of the present invention.The first embodiment of the photochromic method of surface of the work of the present invention comprises following at least main step:
Step (a), provide a workpiece 20;
Step (b), formation one chromatograph 200 are in the surface of this workpiece 20, and this chromatograph 200 can be a simple background color or comprise at least one color;
This workpiece 20 that step (c), storing have this chromatograph 200 is on a platform 40, and the present embodiment is for flatly putting this workpiece 20;
Step (d), provide a light source 10, be located at the top of this workpiece 20; This light source 10 can be ultraviolet ray, laser or infrared ray;
Step (e), provide at least one covering, between this light source 10 and this workpiece 20; And
Step (f), provide light by this light source 10, shine in this surface of this workpiece 20 by this at least one covering 30 and reach a predetermined time.
Above-mentioned workpiece 20 can be metal material, and can be used as the housing of electronic product.In the step of workpiece (a) is provided, may further include the step of cleaning this workpiece 20, for example degreasing (degreasing), that is the grease of removing surface of the work or dirty; After degreasing, can further carry out alkali cleaning (alkaline etching), in order to remove the natural oxidation of surface of the work, and make workpiece expose pure metallic matrix, be beneficial to the generation of anode film and obtain the rete of better quality.Follow-up can also chemical polishing (chemical polishing), chemical etching or claim pears ground (chemical etching), pickling (surface adjust).Chemical polishing is to improve surface smoothness with chemical mode, increases metal base surface gloss, surface that can be brighter; Pears ground is in order to increase surface roughness to reach cloudy surface or to be similar to the effect of sandblast; Pickling is in order to remove the residual silicon ash of surface of the work after pre-treatment, and the residual chemical agent of processing procedure before removing, and the main cleanliness factor that increases surface of the work is beneficial to the anodic oxidation processing procedure.
In the step (b) of above-mentioned formation chromatograph, with the housing of this workpiece 20 as electronic installation, and housing is take aluminium matter as the example explanation, its surperficial chromatograph 200 preferably can utilize the anodic oxidation staining technique, has comprised that (b1) anode is processed, (b2) dyes and (b3) sealing of hole processing.
Above-mentioned anode is processed, and is at first that this workpiece with aluminium matter immerses electrolyte as anode.Aforementioned electrolyte can be acid electrolyte.For example, electrolyte can be sulfuric acid solution.After anode is processed, form anode oxide film in the surface oxidation of workpiece 20, anode oxide film is comprised of hexagon structure cells perpendicular to the metal surface in a large number, and there is a fenestra at each structure cell center, and has extremely strong absorption affinity.After anode is processed, wash to clean the surface of workpiece 20.
Dyeing is that the workpiece of the aluminium matter of oxidation is immersed in dye solution, and dye molecule enters by diffusion in the fenestra of oxide-film, forms with oxide-film covalent bond and the ionic bond that is difficult to separate simultaneously.
Sealing of hole is processed, for example steam sealing of hole, hot water sealing of hole, middle temperature sealing of hole, for the fixing of dye in fenestra, increase simultaneously the performance such as anti-corrosion, wear-resisting of oxide-film.
After sealing of hole, workpiece 20 further can carry out ash disposal (desmut), with the residual pore-sealing liquid of removing surface of the work, and removes surface impurity; Blowing (air) dries up excessive moisture, avoids that surface of the work stays washmarking after oven dry; Oven dry (dry) is so that surface of the work keeps dry.
In step (d), also can optionally provide the side of light source 10 at this workpiece 20, with the side of irradiation workpiece 20.
In step (e), this covering 30 can be the shelter with different shield coverages, and then the light that covers in various degree arrives at workpiece 20, for example loose shelter 301 or shelter 302 more closely, in practical application, covering can be a half tone, optical filter or sheet glass.If can form by the mesh that forms different density the shelter of different density degree on half tone.Perhaps, the metallic film of different density on the plated surface of optical filter or sheet glass, and the shelter of formation different density degree.Above-mentioned covering is preferably can make by heat-resisting material, the heat that is produced to bear step (f).
The present invention makes the colorific variation of chromatograph 200 of workpiece 20 by the irradiation of light.The principle of its utilization is, reaches a predetermined time when the light with specific wavelength shines in this surface of this workpiece 20 by this covering 30, and when being accumulate to certain light energy, light can destroy the molecule of chromatograph 200, makes color thin out.Light can be ultraviolet ray, infrared ray or laser, for example short range (near, 300～400nm), intermediate range (middle, 280～315nm) or long-range (wherein ultraviolet wavelength is shorter for far, 100～280nm) ultraviolet rays, energy intensity is stronger, and the time that needs is just shorter.Ultraviolet light source is generally fluorescent tube or light emitting diode (UV LED), and fluorescent tube is suitable for large tracts of land irradiation purposes, and light emitting diode is suitable for small size local irradiation purposes; LASER Light Source normally range of exposures is less, is fit to the local irradiation purposes.The covering 30 of the shelter by having different density again, the degree that causes difference to cover, thereby can form the gradually effect of layer on the surface of workpiece 20 is as than weak color 201 and darker color 202.
In the present embodiment, the light energy of above-mentioned accumulation only need to reach observable the fading of naked eyes and get final product, illustrate, with wavelength 365nm, energy is the ultraviolet light source of 125mW/cm^2, with the workpiece of aluminium as base material, and 28 centimeters (cm) of distance, shone respectively 5,10,15,20 minutes, and can make the chromatograph after anode is processed produce enough variations of visual color.The variation of above-mentioned color at the tool light source of macro-energy more, or shorter wavelength, or shorter distance, can be shortened the time of variable color again.The condition of fading of the present invention with wavelength 254nm experiment, can produce the effect of variable color when the accumulation light energy reaches 96000 millijoules (mJ).When cooperation had the covering 30 of different shield coverages (for example gradually layer), the surface of workpiece can form the gradually effect of layer.
In addition, in the present embodiment, further can also comprise a lighttight shade 304, be covered in the surface of this workpiece 20 with this shade 304 parts.Shade 304 itself can have pattern, and " A " as shown in fig. 1 can be applicable to the pictorial trademark of electronic product.After the light irradiation is completed, remove this shade 304.Above-mentioned shade 304 can be lighttight object, and for example adhesive tape, peelable glue or shadow model part are to be placed on workpiece 20.The characteristics of peelable glue are with low cost, and are simple to operate, the noresidue vestige.A kind of mode is to form shade 304 with peelable glue (Peelable Mask) on workpiece 20 via the mode of printing, and can be printed as a figure (pattern).Peelable glue often is applied to the part that printed circuit board (PCB) will be protected, and is a kind of aqueous protectiveness printing ink that is.After the printing peelable glue, the step that can dry is so that peelable glue forms is membranaceous.The shadow model part can be to make with the material of fast light line irradiation, to reuse, is for example a metal sign (logo).
Above-mentioned shade 304 can use separately, by the place that shade 304 covers, destroys without light, the primary colors that presents chromatograph 200, and form pattern according to the shape of shade 304, the A in for example graphic, and the place that is not covered can so that workpiece 20 produce in addition than weak color.Above-mentioned shade 304 also can coordinate covering 30 to use together, and has simultaneously the partial result of comprehensive gradual layer color effect and generation pattern.
The second embodiment:
Please refer to Fig. 2, it is the structural representation of the second embodiment of the photochromic method of surface of the work of the present invention.
This embodiment and aforesaid difference are, a pair of covering 30a, the 30b that is positioned at these workpiece 20 sides further is provided, and light source 10a, the 10b of an opposite side be positioned at this to the outside of covering 30a, 30b, can make the side of workpiece 20 also form the effect of gradual layer color with this.The covering of indication, as recited above, can be half tone (web plate), optical filter or sheet glass herein.For fixedly covering 30a, the 30b of side and the covering 30 at top, the present embodiment can further provide the fixture 32 of a frame-type, and covering 30,30a, 30b are fixed on this fixture 32 removably.
Compared to Fig. 1, the present embodiment produces the effect of the gradually layer variable color of full range on the surface of workpiece 20.
The 3rd embodiment:
Please refer to Fig. 3, it is the structural representation of the 3rd embodiment of the photochromic method of surface of the work of the present invention.The step that this 3rd embodiment comprises is as follows:
(a) provide a workpiece 20;
(b) form a chromatograph in the surface of this workpiece 20;
(c) storing has this workpiece 20 of this chromatograph on a bracing frame 50; In this embodiment, for tiltedly putting this workpiece 20, this bracing frame 50 forms an inclined plane and allows workpiece 20 to be the state of tiltedly putting, and bracing frame 50 can be triangular in shape or L shaped, can be for the inclined plane of putting workpiece 20 and form.
(d) provide a light source 10, be located at the top of this workpiece 20;
(e) provide light by this light source 10, shine in this surface of this workpiece 20 and reach a predetermined time.
The difference of the present embodiment and previous embodiment is, does not need covering, and makes workpiece 20 be oblique ornaments, and direct irradiation reaches a predetermined time in this surface of this workpiece 20.Yet because workpiece 20 is put in inclination, the surface of workpiece 20 has different distances from light source 10, as the first shorter distance B 1 of accompanying drawing, and long second distance D2.Pass through different distance, the intensity of shining the light on workpiece 20 namely produces strong and weak difference, accept stronger light ray energy at shorter the first distance B 1 place and produce the effect of light color 201, and accept weak light ray energy at long second distance D2 place and produce the effect of dark color 202.
The advantage of the present embodiment is more to save cost, does not need covering can make the diverse location of workpiece 20 accept different light ray energy, and makes the surface of workpiece 20 be produced the effect of gradual layer color.
Certainly the present embodiment also may further include a shade (not shown) is provided, and is covered in this surface of this workpiece with this shade part.
If the side of workpiece 20 also needs variable color, also can provide light source in the side of workpiece 20.
The 4th embodiment:
Please refer to Fig. 4, it is the schematic diagram of the 4th embodiment of the photochromic method of surface of the work of the present invention.The present embodiment provides the bracing frame 50 ' of an adjustable angle compared to above-described embodiment, and it comprises that an additional circuit boards 51 and is articulated in the base plate 52 of additional circuit boards 51, forms in additional circuit boards 51 inclined plane that can put workpiece 20.The present embodiment is connected in additional circuit boards 51 and base plate 52 with a hinge means 54, and the angle theta between additional circuit boards 51 and base plate 52 can be adjusted, and in case of necessity a support member can be set between additional circuit boards 51 and base plate 52.
Another characteristics of the present embodiment are, comprise that further one is positioned at the turntable 60 of the below of bracing frame 50 ', and turntable 60 can be with respect to platform 40 rotations, so that workpiece 20 is rotated.Coordinate turntable 60, the additional circuit boards 51 of the present embodiment can also further be provided with a pair of holder 512, to be held on the both sides of workpiece 20, shakes in rotation to avoid workpiece 20.
The 5th embodiment:
See also Fig. 5, it is the schematic diagram of the 5th embodiment of the photochromic method of surface of the work of the present invention.But this embodiment shows the present invention's fixation workpiece 20 and the practice of mobile light source 10d, utilizes mobile light source 10d also can form different degree of illumination on the surface of workpiece 20 and produces the effect of color change.Light source 10d can add a cover body 12 with the range of exposures of restriction light.What specify is that in figure, the distance of light source 10d and workpiece 20 for the signal explanation, can be only in fact more to press close to workpiece 20.
In this embodiment, pair of tracks 34 can be set further, light source 10d is moved along track 34.Actuating unit can be set certainly for mobile light source 10d, such as motor etc., also can utilize its situation that moves of computer control.For example the translational speed V of light source 10d can be mobile to lengthen the time of irradiation more slowly in some places, makes photochromic degree larger; Light source 10d is the removable time of faster shining with minimizing also, and reduce photochromic degree.
The present invention also can adjust for light source and control to change the energy of its output, and such as the electric current that can adjust light source, light frequency, pulse width, irradiation time etc. is to adjust the output energy of light, to control the degree of variable color.
The 6th embodiment:
See also Fig. 6, it is the schematic diagram of the 6th embodiment of the photochromic method of surface of the work of the present invention.This embodiment provide one be located at workpiece 20 the surface or on can cover all sidedly the shielding layer 30e of workpiece 20, shielding layer 30e is provided with local hollow-out parts 305, as the word in figure " ic ".But shielding layer 30e can be the plate body of a shading, as metallic plate or other plate bodys etc., and can be for reusing; It can be also peelable glue described above.The present embodiment utilizes the light source 10e of a locality, can be for example laser, infrared ray or ultraviolet LED, only shines hollow-out parts 305.This embodiment illustrates that the present invention can use local light source under the condition of some application, and does not need comprehensive irradiation.Distance between this light source 10e, shielding layer 30e and workpiece 20 threes optionally condition and can adjust.
Therefore, the photochromic method by surface of the work of the present invention has following at least characteristics and function.The present invention is radiated at the surface of workpiece (housing) to produce different colours or gradual layer color with light, can keep its metallic luster, reach the metal sense of touch in metal shell, can not destroy the smooth of its surface.Manufacturing time of the present invention is short, is fit to a large amount of production.
Yet the above is only preferred possible embodiments of the present invention, not thereby limits to scope of patent protection of the present invention, therefore the equivalence techniques that all utilizations specification of the present invention and accompanying drawing content are done changes, all in like manner all is contained in scope of the present invention.
Claims (16)
1. the photochromic method of a surface of the work, is characterized in that, described photochromic method comprises following step:
(a) provide a workpiece;
(b) form a chromatograph in the surface of this workpiece;
(c) storing has this workpiece of this chromatograph on a platform;
(d) provide a light source, be located at the top of this workpiece; And
(e) provide light by this light source, shine in this surface of this workpiece and reach a predetermined time, make the colorific variation of this chromatograph.
2. the photochromic method of surface of the work as claimed in claim 1, is characterized in that, the step that wherein forms this chromatograph comprises:
(b1) anode is processed, with this workpiece immerse electrolyte as anode to form anode oxide film;
(b2) dyeing in this workpiece immersion dye solution with oxidation, enters in the fenestra of above-mentioned oxide-film dyestuff; And
(b3) sealing of hole is processed, with the above-mentioned fixing of dye in above-mentioned fenestra.
3. the photochromic method of surface of the work as claimed in claim 1, is characterized in that, this light source is ultraviolet ray, laser or infrared ray.
4. the photochromic method of surface of the work as claimed in claim 1, it is characterized in that, step (c) has this workpiece of this chromatograph on a platform for flatly putting, has identical distance between the surface that makes this workpiece and this light source, and a covering is provided, this covering forms the shelter of different shield coverages.
5. the photochromic method of surface of the work as claimed in claim 4, is characterized in that, this covering is half tone, optical filter or sheet glass.
6. the photochromic method of surface of the work as claimed in claim 1, it is characterized in that, described photochromic method also comprises provides a lighttight shade, and is covered in this surface of this workpiece with this shade part, removes this shade after this light source irradiation is completed.
7. the photochromic method of surface of the work as claimed in claim 6, is characterized in that, this shade is adhesive tape, peelable glue or shadow model part.
8. the photochromic method of surface of the work as claimed in claim 1, is characterized in that, step (c) is for putting obliquely this workpiece with this chromatograph, produces different distances between the surface that makes this workpiece and light source.
9. the photochromic method of surface of the work as claimed in claim 8, is characterized in that, described photochromic method also comprises provides a bracing frame that is placed on this platform, this bracing frame to have an inclined plane for tiltedly putting this workpiece.
10. the photochromic method of surface of the work as claimed in claim 9, it is characterized in that, this bracing frame comprises that an additional circuit boards and is articulated in the base plate of this additional circuit boards, wherein this inclined plane is formed on this additional circuit boards, and the angle between this additional circuit boards and this base plate can be adjusted.
11. the photochromic method of surface of the work as claimed in claim 9 is characterized in that, described photochromic method also comprises provides a turntable, to carry this bracing frame and to rotate this workpiece.
12. the photochromic method of surface of the work as claimed in claim 1 is characterized in that, described photochromic method also comprises provides a pair of covering that is positioned at this workpiece side, and a pair ofly is positioned at this to the light source in the outside of covering.
13. the photochromic method of surface of the work as claimed in claim 12 is characterized in that, described photochromic method also comprises the fixture that a frame-type is provided, and makes described covering be fixed in removably this fixture.
14. the photochromic method of surface of the work as claimed in claim 1 is characterized in that, described photochromic method also comprises fixes this workpiece and mobile this light source, makes this light source form different degree of illumination on the surface of this workpiece.
15. the photochromic method of surface of the work as claimed in claim 1 is characterized in that, described photochromic method also comprises provides a shielding layer that can cover all sidedly this workpiece, and this shielding layer is provided with a local hollow-out parts, this hollow-out parts of this light source irradiation.
16. the photochromic method of surface of the work as claimed in claim 1 is characterized in that, described photochromic method also comprises electric current, light frequency, pulse width and the irradiation time of adjusting light source, to adjust the output energy of light, controls the degree of variable color.
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| CN2011103748612A CN103112308A (en) | 2011-11-16 | 2011-11-16 | Photo-chromic method of workpiece surface |
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| CN2011103748612A CN103112308A (en) | 2011-11-16 | 2011-11-16 | Photo-chromic method of workpiece surface |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671614A (en) * | 2016-03-24 | 2016-06-15 | 广东威铝铝业股份有限公司 | Anodic oxidation process for 7-series aluminum alloy |
| WO2018045484A1 (en) * | 2016-09-06 | 2018-03-15 | Apple Inc. | Laser bleach marking of an anodized surface |
| US10328527B2 (en) | 2013-06-09 | 2019-06-25 | Apple Inc. | Laser-formed features |
| US11200385B2 (en) | 2018-09-27 | 2021-12-14 | Apple Inc. | Electronic card having an electronic interface |
| US11299421B2 (en) | 2019-05-13 | 2022-04-12 | Apple Inc. | Electronic device enclosure with a glass member having an internal encoded marking |
| US11571766B2 (en) | 2018-12-10 | 2023-02-07 | Apple Inc. | Laser marking of an electronic device through a cover |
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| CN1919596A (en) * | 2006-09-14 | 2007-02-28 | 武汉理工大学 | Translucent glass fibre board with photochromic function and preparation method thereof |
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| US10328527B2 (en) | 2013-06-09 | 2019-06-25 | Apple Inc. | Laser-formed features |
| US11033984B2 (en) | 2013-06-09 | 2021-06-15 | Apple Inc. | Laser-formed features |
| CN105671614A (en) * | 2016-03-24 | 2016-06-15 | 广东威铝铝业股份有限公司 | Anodic oxidation process for 7-series aluminum alloy |
| WO2018045484A1 (en) * | 2016-09-06 | 2018-03-15 | Apple Inc. | Laser bleach marking of an anodized surface |
| CN108349296A (en) * | 2016-09-06 | 2018-07-31 | 苹果公司 | The laser bleaching of anodized surface marks |
| US10099506B2 (en) | 2016-09-06 | 2018-10-16 | Apple Inc. | Laser bleach marking of an anodized surface |
| CN108349296B (en) * | 2016-09-06 | 2019-11-05 | 苹果公司 | The laser bleaching of anodized surface marks |
| US11200385B2 (en) | 2018-09-27 | 2021-12-14 | Apple Inc. | Electronic card having an electronic interface |
| US11200386B2 (en) | 2018-09-27 | 2021-12-14 | Apple Inc. | Electronic card having an electronic interface |
| US11571766B2 (en) | 2018-12-10 | 2023-02-07 | Apple Inc. | Laser marking of an electronic device through a cover |
| US11299421B2 (en) | 2019-05-13 | 2022-04-12 | Apple Inc. | Electronic device enclosure with a glass member having an internal encoded marking |
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