CN102441546A - Method for washing surface of plastic housing of electronic device - Google Patents
Method for washing surface of plastic housing of electronic device Download PDFInfo
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- CN102441546A CN102441546A CN2010105093381A CN201010509338A CN102441546A CN 102441546 A CN102441546 A CN 102441546A CN 2010105093381 A CN2010105093381 A CN 2010105093381A CN 201010509338 A CN201010509338 A CN 201010509338A CN 102441546 A CN102441546 A CN 102441546A
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Abstract
The invention relates to a method for washing the surface of a plastic housing of an electronic device, which comprises the following steps of: firstly, preparing gas at normal temperature or gas which is in a gas state after being heated, into a solid medium; next, jetting a high-speed gas flow towards the solid medium to form multiple solid medium particles; then, carrying the solid medium particles by the high-speed gas flow to impact the surface of the plastic housing at high speed in manner of an air carrier; and then, absorbing large amounts of heat by evaporation of the solid medium particles to tender oil stains, impurities and pollutants on the surface of the plastic housing at low temperature; finally, destroying and removing the oil stains, the impurities and the pollutants on the surface of the plastic housing in combination with the high-speed impact of the solid medium particles and the high-speed gas flow so as to realize the aim of effectively washing the surface of the plastic housing.
Description
Technical field
The present invention relates to a kind of cleaning method of article surface, particularly relate to a kind of electronic equipment plastic shell method for cleaning surface.
Background technology
By scientific and technological flourish now, many products that are relevant to the electronics aspect are come out one after another, and are full of already in the middle of our daily life, and computer, notebook computer, mobile phone or the like are too numerous to enumerate such as.But be accompanied by the utilization exploitation of electronic product, the problem that the frequency electromagnetic waves that is produced when avoiding electronic product to use works the mischief to human body has become the topic of every profession and trade institute extensive discussions at present.
For intercepting the electromagnetic wave that each electronic product produces; Minimizing is to the extent of injury of human body, and many electronic products can be at the shell of product at present, the processing that shields; For example: the shell of products such as notebook computer, mobile phone generally is provided with and intercepts the shielding electromagnetic waves processing.Existing shielding processing means roughly include spray conductive paint mode, electroless plating mode, utilize the metallic plate isolation method, and the vacuum coating mode etc.Wherein, General shielding processing means are the best with the vacuum coating mode; The vacuum coating mode is that the inner surface at plastic shell plates the low-resistance copper film of one deck, silverskin, aluminium film or other metal films and forms conductive layer, utilizes metal conducting layer that the validity of the anti-system of electromagnetic wave shielding is provided.
Yet adopt the vacuum coating mode, surperficial oil stain, impurity and the pollutant of electronic product plastic shell that must earlier ejection formation be processed removed cleaning, guarantees that thus metal conducting layer can coating be incorporated into the surface of electronic product plastic shell.As shown in Figure 3, existing electronic equipment plastic shell method for cleaning surface generally can be handled with the mode of sand blasted surface processing or spray paint bottom the electronic equipment plastic shell, solves the bad problem of plastic shell surface attachment thus.But handling with sand blasted surface is with the plastic shell surface coarsening, and the thickness of the feasible metal conducting layer that next need plate can increase a lot, influences working (machining) efficiency and increases manufacturing cost; With the processing mode of spray paint bottom, can cause processing cost to increase, and have environmental issue.
Summary of the invention
For solving existing electronic equipment plastic shell surface treatment mode; Relevant for working (machining) efficiency difference and the high not enough and restriction of processing cost; Main purpose of the present invention is to provide a kind of electronic equipment plastic shell method for cleaning surface; The present invention is prepared into solid state medium for the gas of gaseous state down or after the heating with normal temperature, and the plastic shell jet surface of with air carrier (Carrier) mode the solid state medium particle high speed being cleaned to quilt again utilizes solid state medium particle high speed bump plastic shell surface; Cooperate solid state medium particle ejection back vaporization; A large amount of heat absorptions of meeting and oil stain, impurity and the pollutant that plastic shell is surperficial are given low temperature brittleness, can oil stain, impurity and the pollutant on plastic shell surface be destroyed removal, reach the purpose of effective cleaning.
The objective of the invention is to adopt following technical scheme to realize.
Electronic equipment plastic shell method for cleaning surface according to the present invention proposes comprises the following steps:
Preparation solid state medium step, with at normal temperatures or the heating back be the gas of gaseous state, be prepared into a solid state medium with low temperature or high pressure mode;
Produce solid state medium particle step, utilize the pneumatic supply of high pressure to spray towards this solid state medium with high velocity air, and form several solid state medium particles, and the speed of the high velocity air after producing is 0.5 to 3 overtone speed through a spray nozzle device; And
The high-speed impact step; With the jet surface of the high velocity air that carries said solid state medium particle towards the electronic equipment plastic shell; Make said solid state medium particle high speed bump plastic shell surface and vaporization; A large amount of heat absorptions during with vaporization are given low temperature brittleness with oil stain, impurity and the pollutant on plastic shell surface, and by high velocity gas stream, accomplish cleaning.
Aforesaid electronic equipment plastic shell method for cleaning surface, wherein said gas is carbon dioxide (CO
2), argon gas (Ar), nitrogen (N
2) or helium (He).
Aforesaid electronic equipment plastic shell method for cleaning surface, the diameter of wherein said solid state medium particle is between 1 μ m to 300 μ m.
Electronic equipment plastic shell method for cleaning surface proposed by the invention, the beneficial effect that can obtain comprises:
1, the present invention utilizes the high-speed air carrier fashion directly with gas solid state medium particle at a high speed; Jet cleaning is carried out on surface to the electronic equipment plastic shell; Compared to the existing inner surface that adopts sand blasted surface to handle the alligatoring plastic shell; The present invention can reduce the thickness of the metal conducting layer of required coating, effectively reduces manufacturing cost and improves working (machining) efficiency.
2, electronic equipment plastic shell method for cleaning surface provided by the invention; The processing mode that combines metal conducting layer compared to existing first spray paint bottom again; The present invention also can effectively avoid environmental pollution problems that coating produces except saving the material cost.
Description of drawings
Fig. 1 is the cleaning step sketch map of preferred embodiment of the present invention.
Fig. 2 is the cleaning operation sketch map of preferred embodiment of the present invention.
Fig. 3 is the enforcement sketch map of existing electronic equipment plastic shell method for cleaning surface.
Description of reference numerals: 10-solid state medium; 11-solid state medium particle; The 20-pneumatic supply; The 21-control valve; The 22-spray nozzle device; The 30-high velocity air; The 40-plastic shell.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, do more detailed explanation to the present invention is above-mentioned with other technical characterictic and advantage, it should be understood that these embodiment only are used for the purpose of illustration, never limit protection scope of the present invention.
The preferred embodiment of electronic equipment plastic shell method for cleaning surface provided by the present invention is as depicted in figs. 1 and 2; Its cleaning step comprises preparation solid state medium step in regular turn, produces solid state medium particle step; And the high-speed impact step, can accomplish cleaning to electronic equipment plastic shell surface.
Described preparation solid state medium step be with at normal temperatures or heating back be the gas of gaseous state, for example carbon dioxide (CO
2), argon gas (Ar), nitrogen (N
2) and helium (He) etc., be prepared into a solid state medium 10 again after making said gas form liquid with low temperature or high pressure mode.
Described generation solid state medium particle step is to utilize the pneumatic supply 20 of a control valve 21 control high pressure to spray towards this solid state medium 10 with high velocity air 30 through a spray nozzle device 22; And form several solid state medium particles 11; The diameter of said solid state medium particle 11 is between 1 μ m to 300 μ m, and the speed of the high velocity air 30 after producing can reach 0.5 to 3 overtone speed.
Described high-speed impact step is with air carrier (Carrier) mode; With the jet surface of the high velocity air that carries said solid state medium particle 11 30 towards an electronic equipment plastic shell 40; Make said solid state medium particle 11 with transonic speed; Can a large amount of heat absorptions when high-speed impact plastic shell 40 surface and vaporization, said solid state medium particle 11 vaporizations and oil stain, impurity and the pollutants on these plastic shell 40 surfaces are given low temperature brittleness, cooperate the high-speed impact of said solid state medium particle 11; Can oil stain, impurity and the pollutant on these plastic shell 40 surfaces be destroyed removal; And take away by high velocity air 30, reach the effect of effective cleaning, accomplish the cleaning on electronic equipment plastic shell 40 surfaces.
The above is merely preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.
Claims (3)
1. an electronic equipment plastic shell method for cleaning surface is characterized in that comprising the following steps:
Preparation solid state medium step, with at normal temperatures or the heating back be the gas of gaseous state, be prepared into a solid state medium with low temperature or high pressure mode;
Produce solid state medium particle step, utilize the pneumatic supply of high pressure to spray towards this solid state medium with high velocity air, and form several solid state medium particles, and the speed of the high velocity air after producing is fast to 3 overtones for O.5 through a spray nozzle device; And
The high-speed impact step; With the jet surface of the high velocity air that carries said solid state medium particle towards the electronic equipment plastic shell; Make said solid state medium particle high speed bump plastic shell surface and vaporization; A large amount of heat absorptions during with vaporization are given low temperature brittleness with oil stain, impurity and the pollutant on plastic shell surface, and by high velocity gas stream, accomplish cleaning.
2. electronic equipment plastic shell method for cleaning surface according to claim 1 is characterized in that: described gas is carbon dioxide (CO
2), argon gas (Ar), nitrogen (N
2) or helium (He).
3. electronic equipment plastic shell method for cleaning surface according to claim 1 and 2 is characterized in that: the diameter of described solid state medium particle is between 1 μ m to 300 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105093381A CN102441546A (en) | 2010-10-14 | 2010-10-14 | Method for washing surface of plastic housing of electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105093381A CN102441546A (en) | 2010-10-14 | 2010-10-14 | Method for washing surface of plastic housing of electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102441546A true CN102441546A (en) | 2012-05-09 |
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ID=46004768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105093381A Pending CN102441546A (en) | 2010-10-14 | 2010-10-14 | Method for washing surface of plastic housing of electronic device |
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| Country | Link |
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| CN (1) | CN102441546A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5405283A (en) * | 1993-11-08 | 1995-04-11 | Ford Motor Company | CO2 cleaning system and method |
| CN1814361A (en) * | 2005-02-01 | 2006-08-09 | 财团法人金属工业研究发展中心 | Cleaning method and device using laser exciting gas |
| CN101124065A (en) * | 2005-02-05 | 2008-02-13 | 凯罗斯诺合资公司 | Device and method for cleaning, activating or pre-treating workpieces by blasting carbon dioxide snow |
| CN101480651A (en) * | 2008-12-05 | 2009-07-15 | 武汉大学 | Dry ice cleaning system for electrical apparatus external insulation |
-
2010
- 2010-10-14 CN CN2010105093381A patent/CN102441546A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5405283A (en) * | 1993-11-08 | 1995-04-11 | Ford Motor Company | CO2 cleaning system and method |
| CN1814361A (en) * | 2005-02-01 | 2006-08-09 | 财团法人金属工业研究发展中心 | Cleaning method and device using laser exciting gas |
| CN101124065A (en) * | 2005-02-05 | 2008-02-13 | 凯罗斯诺合资公司 | Device and method for cleaning, activating or pre-treating workpieces by blasting carbon dioxide snow |
| CN101480651A (en) * | 2008-12-05 | 2009-07-15 | 武汉大学 | Dry ice cleaning system for electrical apparatus external insulation |
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Application publication date: 20120509 |