CN1249266C - Manufacture of casing for portable electronic equipment - Google Patents
Manufacture of casing for portable electronic equipment Download PDFInfo
- Publication number
- CN1249266C CN1249266C CNB011299010A CN01129901A CN1249266C CN 1249266 C CN1249266 C CN 1249266C CN B011299010 A CNB011299010 A CN B011299010A CN 01129901 A CN01129901 A CN 01129901A CN 1249266 C CN1249266 C CN 1249266C
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- CN
- China
- Prior art keywords
- electronic device
- device housing
- casing
- vacuum oven
- manufacture method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Chemical Vapour Deposition (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention relates to a method for manufacturing a casing of a portable electronic device, which comprises the steps that firstly, the casing of an electronic device is pre-treated by blasting sand, and then, the casing of an electronic device treated by blasting sand is treated by plasma chemical vapor deposition. The plasma chemical vapor deposition is specifically characterized in that required working gas is input into a vacuum furnace at definite temperature so as to maintain a certain vacuum degree in the vacuum furnace; in the meantime, high voltage is input between an electrode in the vacuum furnace and the casing of an electronic device so that the working gas is ionized into plasma; the ionized plasma and the surface of the casing of an electronic device carry out an interface reaction under the action of electric field force, and the ionized plasma is combined and deposited on the surface of the casing of an electronic device to form a layer of protective film. When the treated casing of an electronic device is touched by hand, fingerprints can not be left behind, and the surface is not easy to corrode.
Description
[technical field]
The present invention relates to a kind of manufacture of casing for portable electronic equipment, particularly utilize PCVD (Plasma Chemical Vapour Deposition) method that the electronic device housing of being made by metallic substance is handled to prevent to stay the method for fingerprint.
[background technology]
Metallic substance such as iron, aluminium has good processing characteristics, is widely used in various fields such as automobile, electronics, communication.But aluminium hardness is low, wears no resistance, and ironware is exposed to corrosion-vulnerable in the air, thus need before use to its electroplate, functional or ornamental processing such as baking vanish, to remedy the material self-defect.United States Patent (USP) the 5th, 783 discloses a kind of electro-plating method No. 313, by form the composite deposite of a nickel, palladium, molybdenum at matrix surface, to improve the brightness and the wear resistance of matrix.Chinese patent CN adopts for 1030851A number the method for electroplating Zn-Ni alloy to improve the corrosion resistance of metallic substance.Other is many to have the product of metal shell such as computer, automobile, mobil phone etc. and then improves surface quality by baking vanish.Processing procedures such as plating, baking vanish need etch, washing usually, remove the wet goods preliminary preparation, and the complicated and used waste liquid of flow process is difficult for reclaiming, and environment is caused in various degree pollute.
In addition, product is through as above handling, though quality makes moderate progress, it is daily used that this series products mostly is, and often contacts with human body, particularly can stay fingerprint clearly with finger on its surface when contacting.Contain corrosivess such as water, dust, salt in the fingerprint, not only influence attractive in appearancely, can quicken the corrosion on surface, and in use need regularly carry out work such as wiping, cleaning to remove fingerprint, very inconvenience its surface.
[summary of the invention]
Main purpose of the present invention is to provide a kind of portable case of electronic equipment surface that can prevent to stay the manufacture method of fingerprint.
Another purpose of the present invention is to provide a kind of processing portable case of electronic equipment opposing wearing and tearing and corroding method.
Manufacture of casing for portable electronic equipment of the present invention, this portable case of electronic equipment is made by metallic substance, and its surface treatment be may further comprise the steps:
(a) select for use the quartz sand of oven dry to utilize pressurized air to be sprayed onto the electronic device housing surface and put into sodium carbonate solution immediately and store or carry out bonderizing;
(b) electronic device housing that above-mentioned storage is crossed or bonderizing is crossed is put into the roaster preheating that is connected with certain rare gas element;
(c) electronic device housing with above-mentioned preheating is put on the battery lead plate of being located in the vacuum oven;
(d) above-mentioned vacuum oven is vacuumized;
(e) feed working gas 1,1,3,3-tetramethyl disiloxane and O in the vacuum oven under aforementioned certain temperature, pressure
2
(f) open the radio frequency generators that links to each other with above-mentioned electrode, make it, 3-tetramethyl disiloxane and O 1,1,3
2Working gas applies a high-voltage, makes working gas ionization produce plasma body, thereby at electronic device housing surface deposition one silicide oxide film.
Compare with prior art, through the present invention handle portable case of electronic equipment later have attractive in appearance bright and clean, can not stay fingerprint after touching, and the surface is not easy to wear and the corrosive advantage.
[description of drawings]
Fig. 1 is that the present invention carries out the device synoptic diagram that PCVD is handled;
Fig. 2 is a treatment scheme synoptic diagram of the present invention;
Fig. 3 is the electronic device housing structural representation after the present invention handles.
[embodiment]
Please referring to Fig. 1, the PCVD treatment unit by source of the gas cabinet 1, flow director 11, vacuum pump 8, vacuum oven 2, be arranged on two comparative electrode plates 3 in the vacuum oven 2 and the radio-frequency power supply 4 that links to each other with battery lead plate 3 is formed.Wherein be provided with gas inlet 5, vacuum breaker 6 and perforate 13 in the vacuum oven 2, gas inlet 5 is used for injecting respectively working gas TMDS (1,1,3, the 3-tetramethyl disiloxane) and O
2, vacuum breaker 6 usefulness remove vacuum, and perforate 13 is used for vacuum oven 2 is linked to each other with vacuum pump 8, and the pressure after valve 7 vacuumizes in order to 8 pairs of vacuum ovens 2 of control vacuum pump makes the vacuum tightness that can keep all the time in the stove below the 0.67Pa.In addition, 3 one ground connection of described battery lead plate, another then is connected with radio-frequency power supply 4, is connected with portable case of electronic equipment 10 on the battery lead plate 3 of ground connection.
, be example please with the portable case of electronic equipment of making by titanium alloy 10 referring to Fig. 2, as follows to its surperficial treatment step:
(1) select for use the quartz sand of granularity between 0.5～1mm some, oven dry before use, utilize pressurized air under 0.15～0.3MPa pressure, quartz sand is sprayed onto pending electronic device housing 10 surfaces through nozzle to be handled, each electronic device housing probably need handle for 3～5 seconds, will put into the storage of 50g/L sodium carbonate solution immediately or carry out bonderizing through the electronic device housing 10 of sandblasting.
(2) electronic device housing 10 that will be stored in the sodium carbonate solution takes out; put into the roaster preheating 30 minutes that is filled with a small amount of inert protective gas (as argon gas); make its temperature reach 100～200 ℃; take out on the battery lead plate 3 that is put into again in the vacuum oven 2; close vacuum oven 2; open valve 78 pairs of vacuum ovens 2 of vacuum pump are vacuumized, the vacuum tightness in the vacuum oven 2 is reached below the 0.67Pa.
(3) open flow director 11, in vacuum oven 2, inject working gas TMDS (1,1,3, the 3-tetramethyl disiloxane) and O
2, make the flow velocity of TMDS remain on 50～150cm
3/ minute between, regulate O
2Flow speed is 200～300cm
3/ minute between, preferably make TMDS and O
2Volume flow ratio remained on 2: 5, and utilized pressure regulator valve (figure do not show) to make pressure-controlling in the vacuum oven 2 between 2.67～1333.2Pa.
(4) vacuum oven 2 interior temperature are reached about 150 ℃, connecting power is the radio-frequency power supply 4 of 500W, make its rf frequency reach 13.56MHz, working gas TMDS carries out glow discharge under the radio frequency high tension effect, form the plasma physics field, surface reaction takes place in ionized plasma body and electronic device housing surface under the electrical forces effect, in conjunction with the surface that is deposited on electronic device housing 10, forms one deck coating 12.
After 70 minutes, cut off radio-frequency power supply 4 in (5) 40 minutes, and made it cooling, and open vacuum breaker 6 pressure is returned to normal pressure and takes out electronic device housing 10.
Please referring to Fig. 3, after the above-mentioned steps processing, surface deposition one deck coating 12 at electronic device housing 10 is the silicide oxide film, electronic device housing overlay coating 12 after the processing is strengthened through test shows opposing corrosive ability, the most important thing is that hand contacts its surface of this electronic device housing and can not stay fingerprint, still keep light as new.The present invention also is suitable for the surface treatment of aluminum alloy casing.
Claims (6)
1. manufacture of casing for portable electronic equipment, this portable case of electronic equipment is made by metallic substance, it is characterized in that this method may further comprise the steps:
(a) select for use the quartz sand of oven dry to utilize pressurized air to be sprayed onto the electronic device housing surface and put into sodium carbonate solution immediately and store or carry out bonderizing;
(b) electronic device housing that above-mentioned storage is crossed or bonderizing is crossed is put into the roaster preheating that is connected with certain rare gas element;
(c) electronic device housing with above-mentioned preheating is put on the battery lead plate of being located in the vacuum oven;
(d) above-mentioned vacuum oven is vacuumized;
(e) feed working gas 1,1,3,3-tetramethyl disiloxane and O in the vacuum oven under aforementioned certain temperature, pressure
2
(f) open the radio frequency generators that links to each other with above-mentioned electrode, make it, 3-tetramethyl disiloxane and O 1,1,3
2Working gas applies a high-voltage, makes working gas ionization produce plasma body, thereby at electronic device housing surface deposition one silicide oxide film.
2. electronic device housing manufacture method as claimed in claim 1 is characterized in that: the preheating temperature of electronic device housing is between 100～200 ℃.
3. electronic device housing manufacture method as claimed in claim 2 is characterized in that: operating pressure remains on 2.67～1333.2Pa in the vacuum oven.
4. electronic device housing manufacture method as claimed in claim 3 is characterized in that: described 1,1,3, and 3-tetramethyl disiloxane and O
2Volume flow ratio be 2: 5.
5. electronic device housing manufacture method as claimed in claim 1 is characterized in that: the inert protective gas in the described roaster comprises argon gas.
6. electronic device housing manufacture method as claimed in claim 1 is characterized in that: handled electronic device housing is titanium alloy casing or aluminum alloy casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011299010A CN1249266C (en) | 2001-11-07 | 2001-11-07 | Manufacture of casing for portable electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011299010A CN1249266C (en) | 2001-11-07 | 2001-11-07 | Manufacture of casing for portable electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1418053A CN1418053A (en) | 2003-05-14 |
| CN1249266C true CN1249266C (en) | 2006-04-05 |
Family
ID=4669544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011299010A Expired - Fee Related CN1249266C (en) | 2001-11-07 | 2001-11-07 | Manufacture of casing for portable electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1249266C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870863B (en) * | 2005-05-28 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Casing of portable electronic device and its manufacturing method |
-
2001
- 2001-11-07 CN CNB011299010A patent/CN1249266C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1418053A (en) | 2003-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Acer electronic industry (Hangzhou) Co., Ltd. Assignor: Hongfujin Precision Industry (Shenzhen) Co., Ltd.|Hon Hai Precision Industry Co., Ltd. Contract fulfillment period: 2006.6.30 to 2011.6.30 contract change Contract record no.: 2008990001259 Denomination of invention: Method for making casing of portable electronic device Granted publication date: 20060405 License type: Exclusive license Record date: 20081121 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.6.30 TO 2011.6.30; CHANGE OF CONTRACT Name of requester: HONGXUN ELECTRONIC INDUSTRY ( HANGZHOU ) CO., LTD. Effective date: 20081121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20141107 |
|
| EXPY | Termination of patent right or utility model |