CN102649209A - Manufacturing method of aluminum alloy appearance part - Google Patents
Manufacturing method of aluminum alloy appearance part Download PDFInfo
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- CN102649209A CN102649209A CN2011100431102A CN201110043110A CN102649209A CN 102649209 A CN102649209 A CN 102649209A CN 2011100431102 A CN2011100431102 A CN 2011100431102A CN 201110043110 A CN201110043110 A CN 201110043110A CN 102649209 A CN102649209 A CN 102649209A
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- aluminium alloy
- appearance component
- alloy appearance
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- electrolytic polishing
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Abstract
The invention provides a manufacturing method of an aluminum alloy appearance part, which is characterized by mainly comprising the following steps of: (1) punch-forming; (2) degreasing; (3) electrolytic grinding; (4) stripping; (5) anodizing; and (6) hole sealing. Compared with the prior art, the manufacturing method of the aluminum alloy appearance part has the following advantages that a product has high glaze and also has the metal mirror texture appearance; the formula is environmental-friendly, and the anodizing surface treatment is adopted, so that the surface of the product is not easy to fall off and rust and is always new in color and luster; and various dyeing and other manufacturing processes can be matched, the diversified product appearance is provided, and more appearance design requirements are satisfied.
Description
[technical field]
The present invention relates to a kind of preparation method of appearance component, particularly a kind of preparation method that adopts the high light microscopic face aluminium alloy appearance component of electrolytic polishing processing and anodized.
[background technology]
Existing electronic product is like beautiful product appearances of all following the fashion such as mobile phone, MP3, digital camera, mobile computer, flat computer, digital plotters.These electronic products all are to adopt plastic casing usually at present, through processing procedures such as vacuum splashing and plating or in-mold transfer printings, make product have the bright looking of metal-like, give people's visual impact.The electronic product appearance component that this mode processes, after use a period of time, the rete of outer surface peels off easily, tarnishes, and it is very not attractive in appearance that outward appearance becomes.
Chinese patent CN200510035990.3 discloses a kind of aluminium machining method with mirror surface, at first with the punch forming of minute surface aluminium, behind laser engraving, carries out anodized again and obtains the specular aluminium goods.This patent also discloses a kind of work flow sketch map that before punch steps, increases the aluminium machining method with mirror surface of polishing step, does not make it keep the particular content of the polishing step of mirror effect but have in this patent to describe in detail.
[summary of the invention]
In view of the above problems, the object of the present invention is to provide the preparation method of graceful, the wear-resisting and high light microscopic face aluminium alloy appearance component that hardness is high of a kind of color and luster.
In order to achieve the above object, the present invention provides a kind of preparation method of aluminium alloy appearance component, it is characterized in that, mainly may further comprise the steps:
(1) punch forming: according to the design specification of product, with the aluminum alloy plate materials punch forming;
(2) degreasing: adopt alkaline agent that this aluminium alloy appearance component is carried out ungrease treatment, remove its surperficial greasy dirt;
(3) electrolytic polishing: adopt the electrolytic polishing method, this aluminium alloy appearance component after the degreasing is carried out high finish surface handle;
(4) stripping: handle with carrying out stripping in this aluminium alloy appearance component immersion stripping solution after the electrolytic polishing processing;
(5) anodic oxidation: this aluminium alloy appearance component after the stripping processing is carried out anodized;
(6) sealing of hole: handle with carrying out sealing of hole in this aluminium alloy appearance component immersion hole sealing agent.
Preferably, in the said step (3), electrolytic polishing is handled the electrolytic polishing liquid that is adopted, and its components based on weight percentage mainly comprises:
Phosphoric acid 60～90%;
Sulfuric acid 10～30%;
Phytic acid 1～5%;
OP-10 (APES) 0.01～1%.
The technological parameter that electrolytic polishing is handled is: temperature is 50～90 ℃, and the processing time is 30s～2min, and voltage is 12～20V.
Preferably, in the said step (4), it is salpeter solution that stripping is handled the stripping solution that is adopted, and its concentration is 45～55% by weight percentage.
Preferably; In the said step (5), the electrolyte that anodized adopted is oxalic acid and sulfuric acid mixture liquid, and wherein the concentration of sulfuric acid is 160～200g/L; The concentration of oxalic acid is 1～3% by weight percentage; The technological parameter of anodized is: temperature is 18～23 ℃, and voltage is 12～18V, and current density is 1.5～2.0A/m
2, the reaction time is 30～60min.
Preferably; In the said step (5); The aluminium alloy appearance component is through also comprising the dyeing treatment step to the aluminium alloy appearance component after the anodized step: color as required, this aluminium alloy appearance component is put into the dyeing liquor processing of dyeing, and the dyeing processing time is 5～20min.
The preparation method of a kind of aluminium alloy appearance component provided by the invention; Through being the aluminium alloy appearance component with the aluminum alloy plate materials punch forming; Earlier through the alkaline agent ungrease treatment; Handle through electrolytic polishing again, carry out the processing of anodized and sealing of hole then, thereby make color and luster grace, wear-resisting and high light microscopic face aluminium alloy appearance component that hardness is high.
The preparation method of a kind of aluminium alloy appearance component provided by the invention can also be according to the appearance design needs, after the anodic oxidation step is accomplished, to product processings of dyeing, obtain required color, thus the diversified outward appearance product of production color.
Compared to prior art, the preparation method of a kind of aluminium alloy appearance component of the present invention has the following advantages: product has high glaze and metallic mirror surface texture outward appearance; The prescription environmental protection adopts anodized surface to handle, and the product subsurface difficult drop-off gets rusty, and color and luster is all the time as new; Can cooperate various dyeing and other processing procedures, diversified product appearance is provided, satisfy more appearance design demands.
[description of drawings]
Fig. 1 is the process chart of the preparation method of a kind of aluminium alloy appearance component of the present invention.
[specific embodiment]
Describe in further detail below in conjunction with the specific embodiment of accompanying drawing the preparation method of a kind of aluminium alloy appearance component of the present invention.
See also Fig. 1, it illustrates the process chart of the preparation method of a kind of aluminium alloy appearance component of the present invention.
Following examples are example with the manufacturing aluminum alloy notebook computer casing and cooperate process chart shown in Figure 1 to specify as follows.
The preparation method of a kind of aluminium alloy appearance component of the present invention is applied to the manufacturing aluminum alloy notebook computer casing, mainly may further comprise the steps:
Step 101: according to the design specification of notebook computer casing, with the aluminum alloy plate materials punch forming.
Step 102: this aluminium alloy notebook computer casing after the moulding is carried out ungrease treatment with alkaline agent, remove its surperficial greasy dirt.The technological parameter of ungrease treatment is: adopt the degreasing agent of carbonated calcium and calcium phosphate, treatment temperature is 60 ℃, and the processing time is 3min.
Step 103: this aluminium alloy notebook computer casing after the ungrease treatment is immersed electrolytic polishing liquid as anode, is negative electrode with the corrosion resistant plate, and this aluminium alloy notebook computer casing after adopting the electrolytic polishing method to degreasing carries out high finish surface to be handled.The electrolytic polishing liquid that is adopted, its components based on weight percentage mainly comprises:
Phosphoric acid 78%;
Sulfuric acid 20%;
Phytic acid 1.9%;
OP-10 0.1％。
The technological parameter that electrolytic polishing is handled is: temperature is 70 ℃, and voltage is 14V, and the electrolytic polishing processing time is 30 seconds.
Step 104: this aluminium alloy notebook computer casing after the electrolytic polishing processing is put into the stripping groove; Immerse concentration of nitric acid and be and carry out stripping in 50% the solution and handle; Remove the weir matter of this aluminium alloy notebook computer casing in the electrolytic polishing processing procedure, make this aluminium alloy notebook computer casing keep high glaze.
Step 105: with carrying out anodized in this aluminium alloy notebook computer casing dipping acid liquid oxidation groove after the stripping processing; Electrolyte adopts oxalic acid and sulfuric acid mixture liquid, and wherein the concentration of sulfuric acid is 175g/L, and concentration of oxalic acid is 2% by weight percentage; The technological parameter of anodized is: temperature is 20 ℃; Negative electrode adopts corrosion resistant plate, and voltage is 15V, and current density is 1.6A/m
2, the processing time is 40min.According to required color, can this aluminium alloy notebook computer casing after the anodized be put into the dyeing liquor processing of dyeing, the dyeing processing time is 5～20min.
Step 106: this aluminium alloy notebook computer casing after will dyeing immerses and carries out the sealing of hole processing in the hole sealing agent, and the hole sealing agent that is adopted is the nickel acetate hole sealing agent, and its concentration is 0.5% by weight percentage, and temperature is 80 ℃, and the processing time is 15min.
This aluminium alloy notebook computer casing after above-mentioned steps handled cleans and dries, and promptly obtains the notebook computer casing product of color and luster grace, the wear-resisting and high light microscopic face (glossiness surpasses 100) that hardness is high.
The preparation method of a kind of aluminium alloy appearance component of the present invention not only can be applicable to make above-mentioned notebook computer casing; Also may extend to all kinds of dull and stereotyped counter bodies; The digital plotter shell; LCD TV shells etc. cooperate various dyeing and other processing procedure, obtain color and luster grace, wear-resisting and high light microscopic face appearance component product that hardness is high.
Be pointed out that, the invention is not restricted to above-mentioned embodiment, any simple modification, equivalent variations and modification that any professional and technical personnel of being familiar with does the foregoing description based on technical scheme of the present invention all fall in protection scope of the present invention.
Claims (10)
1. the preparation method of an aluminium alloy appearance component is characterized in that, mainly may further comprise the steps:
(1) punch forming: according to the design specification of product, with the aluminum alloy plate materials punch forming;
(2) degreasing: adopt alkaline agent that this aluminium alloy appearance component is carried out ungrease treatment, remove its surperficial greasy dirt;
(3) electrolytic polishing: adopt the electrolytic polishing method, this aluminium alloy appearance component after the degreasing is carried out high finish surface handle;
(4) stripping: handle with carrying out stripping in this aluminium alloy appearance component immersion stripping solution after the electrolytic polishing processing;
(5) anodic oxidation: this aluminium alloy appearance component after the polishing is carried out anodized;
(6) sealing of hole: handle with carrying out sealing of hole in this aluminium alloy appearance component immersion hole sealing agent.
2. the preparation method of aluminium alloy appearance component according to claim 1 is characterized in that, in the said step (3), electrolytic polishing is handled the electrolytic polishing liquid that is adopted, and its components based on weight percentage mainly comprises:
Phosphoric acid 60～90%;
Sulfuric acid 10～30%;
Phytic acid 1～5%;
OP-10 (APES) 0.01～1%.
3. the preparation method of aluminium alloy appearance component according to claim 2 is characterized in that, in the said step (3), electrolytic polishing is handled the electrolytic polishing liquid that is adopted, and its components based on weight percentage mainly comprises:
Phosphoric acid 78%;
Sulfuric acid 20%;
Phytic acid 1.9%;
OP-10 (APES) 0.1%.
4. according to the preparation method of any described aluminium alloy appearance component of claim 1 to 3, it is characterized in that in the said step (3), the technological parameter that electrolytic polishing is handled is: temperature is 50～90 ℃, and the processing time is 30s～2min, and voltage is 12～20V.
5. the preparation method of aluminium alloy appearance component according to claim 4 is characterized in that, in the said step (3), the technological parameter that electrolytic polishing is handled is: temperature is 70 ℃, and the processing time is 30s, and voltage is 14V.
6. the preparation method of aluminium alloy appearance component according to claim 1 is characterized in that, in the said step (4), this stripping solution is salpeter solution, and its concentration is 45～55% by weight percentage.
7. the preparation method of aluminium alloy appearance component according to claim 6 is characterized in that, in the said step (4), this stripping solution is salpeter solution, and its concentration is 50% by weight percentage.
8. the preparation method of aluminium alloy appearance component according to claim 1 is characterized in that, in the said step (5); The electrolyte that anodized adopted is the mixed liquor of oxalic acid and sulfuric acid; Wherein the concentration of sulfuric acid is 160～200g/L, and the concentration of oxalic acid is 1～3% by weight percentage, and the technological parameter of anodized is: temperature is 18～23 ℃; Voltage is 12～18V, and current density is 1.5～2.0A/m
2, the reaction time is 30～60min.
9. the preparation method of aluminium alloy appearance component according to claim 8 is characterized in that, in the said step (5); The electrolyte that anodized adopted is the mixed liquor of oxalic acid and sulfuric acid; Wherein the concentration of sulfuric acid is 175g/L, and the concentration of oxalic acid is 2% by weight percentage, and the technological parameter of anodized is: temperature is 20 ℃; Voltage is 15V, and current density is 1.6A/m
2, the reaction time is 40min.
10. the preparation method of aluminium alloy appearance component according to claim 1; It is characterized in that; In the said step (5); The aluminium alloy appearance component is through also comprising the dyeing treatment step to the aluminium alloy appearance component after the anodized step: color as required, this aluminium alloy appearance component is put into the dyeing liquor processing of dyeing, and the dyeing processing time is 5～20min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762538A (en) * | 2015-04-09 | 2015-07-08 | 广东欧珀移动通信有限公司 | Aluminum alloy and anodic oxidation method thereof |
| CN104786008A (en) * | 2014-01-17 | 2015-07-22 | 汉达精密电子(昆山)有限公司 | Making method of metal pattern and product thereof |
| CN107460519A (en) * | 2017-07-04 | 2017-12-12 | 泰州亚泰金属有限公司 | A kind of process of surface treatment of aluminum products |
| CN107761149A (en) * | 2017-09-29 | 2018-03-06 | 昌宏精密刀具（东莞）有限公司 | A kind of minute surface anode fabrication method of suitable dyeing |
| CN107858743A (en) * | 2013-12-19 | 2018-03-30 | 日本轻金属株式会社 | The electrobrightening processing method of aluminium |
| CN108093591A (en) * | 2017-11-20 | 2018-05-29 | 广东欧珀移动通信有限公司 | Plate and preparation method thereof, mobile terminal shell, mobile terminal |
| CN108759275A (en) * | 2018-07-21 | 2018-11-06 | 谭希妤 | A kind of ultra-thin refrigerator body and its manufacturing method |
| WO2020083009A1 (en) * | 2018-10-24 | 2020-04-30 | 浙江阿克希龙舜华铝塑业有限公司 | Laser engraving and multi-color processing technique |
Families Citing this family (1)
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107761149A (en) * | 2017-09-29 | 2018-03-06 | 昌宏精密刀具（东莞）有限公司 | A kind of minute surface anode fabrication method of suitable dyeing |
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| CN108759275A (en) * | 2018-07-21 | 2018-11-06 | 谭希妤 | A kind of ultra-thin refrigerator body and its manufacturing method |
| WO2020083009A1 (en) * | 2018-10-24 | 2020-04-30 | 浙江阿克希龙舜华铝塑业有限公司 | Laser engraving and multi-color processing technique |
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