CN101576720B - Device and method for recovering silver in developing solution of plasma flat panel display - Google Patents
Device and method for recovering silver in developing solution of plasma flat panel display Download PDFInfo
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- CN101576720B CN101576720B CN2009100249155A CN200910024915A CN101576720B CN 101576720 B CN101576720 B CN 101576720B CN 2009100249155 A CN2009100249155 A CN 2009100249155A CN 200910024915 A CN200910024915 A CN 200910024915A CN 101576720 B CN101576720 B CN 101576720B
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- dipper
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- trunk line
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Abstract
The invention provides a device and a method for recovering silver in developing solution of a plasma flat panel display. The device comprises a branch pipe(7), a spiral main pipe(8), a first developing solution tank(1), a second developing solution tank(2), a first filter screen(5), a second filter screen(6), a first pump(3) and a second pump(4). The device and the method have the advantages of ensuring stable developing effect of the developing solution and saving cost.
Description
Technical field
The present invention relates to a kind of Plasma Display Technology, the retracting device and the method thereof of residual silver slurry in especially a kind of electrode of substrate manufacture process, the specifically retracting device and the method thereof of silver in the developing solution of plasma flat panel display.
Background technology
Shadow mask plasma display Shadow Mask Plasma Display Panel is called for short SMPDP, is on existing plasma flat-panel display PDP technical foundation, utilizes the planar mask among the color cathode ray tube CRT to replace barrier manufacturing complicated among the PDP.
Now the electrode in barrier formula plasma flat-panel display and the shade mask plasma flat-panel monitor generally has aluminium Al electrode, tin indium oxide ITO electrode to also have silver-colored Ag electrode, and the most frequently used be exactly the Ag electrode.Form the method for Ag electrode commonly used have two kinds, a kind of is to use the graphic printing method, electrode pattern is directly printed onto on the substrate, but along with the increase of output, the lines precision of printing is variation gradually, is difficult to guarantee the quality of printing.The resolution of image can also make us accepting in the scope that shows drawing array VGA at present, but along with the requirement of resolution is more and more higher, it is thinner that wire spacing becomes, and along with this requirement more and more becomes more meticulous, the graphic printing method just is difficult to adapt to.Another kind also is present the most frequently used electrode formation method, is exactly to form by serigraphy.At first with photosensitive silver slurry silk-screen on substrate, expose after the drying, the photosensitive material in the slurry is reacted, then by adopting the sodium carbonate liquor spray irrigation to develop, unwanted position in the electrode pattern is dissolved, and electrode line just displays.But the photosensitive silver that remains as electrode slurry slurry is approximately 35%, 65% electrode slurry and has just wasted.So, the slurry of the silver in the developer solution need be carried out recycling, and the silver of 70%-85% is recuperable in the developer solution in order to guarantee the stable of developing liquid developing effect and to save cost.Silver slurry too high levels in the developer solution after the development, requires electrode neatly smooth, do not have defectives such as projection, breakpoint and line, if can cause above-mentioned defective.Therefore, the i.e. recovery of silver slurry is necessary to electrode slurry in the developer solution.
Summary of the invention
The objective of the invention is recovery problem at residual silver slurry in the existing developing solution of plasma flat panel display, propose a kind ofly can guarantee the developing liquid developing effect stability, can save the retracting device and the method thereof of silver in the developing solution of plasma flat panel display of cost again.
Technical scheme of the present invention is:
The retracting device of silver in a kind of developing solution of plasma flat panel display, it comprises isocon, the spiral trunk line, first dipper, second dipper, first screen pack, second screen pack, first pump and second pump, isocon links to each other with the district of developing by pipeline with the spiral trunk line, the other end of isocon links to each other with first dipper by pipeline, the interface of the isocon and first dipper is equipped with first screen pack, the other end of spiral trunk line links to each other with second dipper by pipeline, the interface of the spiral trunk line and second dipper is equipped with second screen pack, first dipper links to each other with the district of developing by second pump, first dipper links to each other with first pump by pipeline, and the other end of first pump is connected with pipeline between second dipper by pipeline and spiral trunk line.
First screen pack of the present invention and second screen pack are semicircle, and the pore diameter range of described screen pack is 20-50 μ m.
The material of spiral trunk line of the present invention is a polyvinylchloride, and caliber is 5-6 cun, and effective length is a 1-2 rice, and the interface of spiral trunk line and pipeline is helicitic texture or bayonet arrangement.
The recovery method of silver in a kind of developing solution of plasma flat panel display, it may further comprise the steps:
(a). at first, the used developer solution in district that will develop flows to isocon and spiral trunk line respectively by pipeline;
(b). the developer solution that flows out the spiral trunk line filters at the second screen pack place and obtains the silver slurry, and the developer solution after the filtration flow to second dipper;
(c). start the flow velocity that first pump increases developer solution in the helical pipe, the developer solution that flows out isocon filters at the first screen pack place and obtains the silver slurry, the developer solution after the filtration and deposit in first dipper by first pump flow to first dipper from second dipper developer solution;
(d). start second pump developer solution in first dipper is extracted into the district of developing,, be sprayed onto on the substrate, continue to develop through nozzle;
(e). regularly pull down spiral trunk line, first screen pack and second screen pack, reclaim the silver slurry that obtains on spiral trunk line and the screen pack.
Beneficial effect of the present invention:
The present invention by its motion state in current, is divided into traction load and suspended load according to the motion principle of silt in the river.Traction load refers to be subjected to a drag effect silt that rolls, slides or bound forward along the river; Suspended load refers to the silt that gravitate and flow turbulence effect suspend in water and advance with current.Under certain flow condition, these two kinds of silts can transform mutually.In the present invention, the water that just is equivalent to the river after developer solution spray substrate develops, the silver slurry just is equivalent to silt, small part silver slurry flows in first dipper of reserving at reflux line along with the sub-fraction developer solution, major part is by the deadweight owing to the silver slurry at the spiral place of spiral trunk line, and when centrifugal force was starched deadweight less than silver, silver-colored slurry can be deposited in the helical pipe place, through precipitating for several times, drop to silver slurry in the solution minimum.
The material of spiral trunk line of the present invention adopts Polyvinylchloride Polyvinylchlorid to be called for short PVC, has corrosion resistance, thermotolerance, toughness and ductility, firm and durable.
The interface of spiral trunk line of the present invention and pipeline is helicitic texture or bayonet arrangement, has the characteristics of easy accessibility, is convenient to the silver slurry in the recovery channel, can increase or reduce the quantity of helical structure according to the needs that filter.
It is that spiral trunk line or the increase pump that 5-6 is very little, effective length is 1-2 rice keeps certain flow velocity that the present invention adopts caliber, increases the effect of filtered and recycled.
It is the screen pack of 20-50 μ m that the present invention adopts pore diameter range, and screen pack is semicircle, has better filter effect, can reduce the obstruction to soup.
Of the present invention simple in structure, do not need other equipment, saved cost, can effectively control silver-colored influence of starching in the developer solution to developing process, technology is easy, is easy to realize.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, the retracting device of silver in a kind of developing solution of plasma flat panel display, it comprises isocon 7, spiral trunk line 8, first dipper 1, second dipper 2, first screen pack 5, second screen pack 6, first pump 3 and second pump 4, first screen pack 5 and second screen pack 6 are semicircle, and the pore diameter range of screen pack is 20-50 μ m.Isocon 7 links to each other with the district of developing by pipeline with spiral trunk line 8, the other end of isocon 7 links to each other with first dipper 1 by pipeline, the interface of the isocon 7 and first dipper 1 is equipped with first screen pack 5, the other end of spiral trunk line 8 links to each other with second dipper 2 by pipeline, the interface of the spiral trunk line 8 and second dipper 2 is equipped with second screen pack 6, first dipper 1 links to each other with the district of developing by second pump 4, first dipper 1 links to each other with first pump 3 by pipeline, and the other end of first pump 3 is connected with pipeline between second dipper 2 by pipeline and spiral trunk line 8.The material of spiral trunk line 8 is a polyvinylchloride, and caliber is 5-6 cun, and effective length is a 1-2 rice, and spiral trunk line 8 is helicitic texture or bayonet arrangement with the interface of pipeline.
The recovery method of silver in a kind of developing solution of plasma flat panel display is characterized in that it may further comprise the steps:
(a). at first, the used developer solution in district that will develop flows to isocon 7 and spiral trunk line 8 respectively by pipeline;
(b). the developer solution that flows out spiral trunk line 8 filters at second screen pack, 6 places and obtains the silver slurry, and the developer solution after the filtration flow to second dipper 2;
(c). start the flow velocity that first pump 3 increases developer solution in the helical pipe, the developer solution that flows out isocon 7 filters at first screen pack, 5 places and obtains the silver slurry, and developer solution after the filtration and the developer solution that flow to first dipper 1 by first pump 3 from second dipper 2 are in 1 li deposition of first dipper;
(d). start second pump 4 developer solution in first dipper 1 is extracted into the district of developing,, be sprayed onto on the substrate, continue to develop through nozzle;
(e). regularly pull down spiral trunk line 8, first screen pack 5 and second screen pack 6, reclaim the silver slurry that obtains on spiral trunk line 8 and the screen pack.
During concrete enforcement:
In the process of developing, must keep the cleaning of surrounding environment and equipment, if having dust, fiber can cause some defectives.Start is according to different types of silver-colored pulp material setup parameter.The heating of wait developing machine, in the developing machine heating, with pressure, contraposition size and development time configure, then the PH of the concentration of titration developer solution and definite developer solution and conductance.After will leaving standstill 15 minutes through the substrate of exposure technology, prepare to begin to develop.Develop if adopt the substrate of silk-screen printing technique processing procedure can directly put into developing machine, if adopt the substrate of press mold mode processing procedure then to need surperficial layer protecting film is carried out developing process again to tearing.To notice that in developing process the flow and the pressure that show point and developer solution change, prevent the pressure that causes owing to silver slurry blocking filter and diminish, cause the failure of flowing water.Substrate enters the section of developing through the input section, and section is reacted with developer solution developing.Developer solution filters through filtrator under the effect of pumping, again by nozzle be sprayed onto on the substrate with substrate on the photosensitive silver slurry react.
Reacted silver slurry be dissolved in the developer solution and developer solution together through being back in the dipper.Developer solution divides two-way to flow in two dippers in reflux line.One route isocon 7 flows into first dipper 1, because the silver slurry is subjected to the drag effect in developer solution, moves along duct wall, so can enter first dipper 1 together along with developer solution at isocon 7 places.Another curb spiral trunk line 8 through one or several screw type pipelines, near silver slurry under gravity and the action of centrifugal force is deposited on helical pipe, and developer solution flows into second dipper 2 along pipeline, and 6 pairs of developer solutions of second screen pack that a semicircle camber is arranged equally in the porch of second dipper 2 carry out filtration again, guarantee that the silver slurry content in the developer solution drops to minimum.Simultaneously, the developer solution in second dipper 2 is extracted in first dipper 1, by second pump 4 developer solution in first dipper 1 is extracted into the district of developing again,, be sprayed onto on the substrate, continue to develop, finish a circulation through nozzle with first pump 3.When the silver slurry at spiral trunk line 8 places runs up to some, pipeline be pulled down, the silver slurry in will managing with instrument is drawn out, with container the silver slurry is installed, again pipeline is loaded onto, will on screw thread mouth, be wrapped leakage preventing tape in the time of dress, to prevent the phenomenon of interface leakage.
After development finishes, check the situation of substrate surface, observe whether have pit, protrusion, broken string, stain and line.According to the situation of above-mentioned defective, and the instrument on the board, within the range of permission whether the silver that detects in the developer solution starched.
By these operations, just can effectively control residual silver-colored harmful effect of starching in the developer solution to developing process, technology is easy, is easy to realize.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. the retracting device of silver in the developing solution of plasma flat panel display, it is characterized in that it comprises isocon (7), spiral trunk line (8), first dipper (1), second dipper (2), first screen pack (5), second screen pack (6), first pump (3) and second pump (4), isocon (7) links to each other with the district of developing by pipeline with spiral trunk line (8), the other end of isocon (7) links to each other with first dipper (1) by pipeline, isocon (7) is equipped with first screen pack (5) with the interface of first dipper (1), the other end of spiral trunk line (8) links to each other with second dipper (2) by pipeline, spiral trunk line (8) is equipped with second screen pack (6) with the interface of second dipper (2), first dipper (1) links to each other with the district of developing by second pump (4), first dipper (1) links to each other with first pump (3) by pipeline, and the other end of first pump (3) is connected with pipeline between second dipper (2) by pipeline and spiral trunk line (8).
2. the retracting device of silver in a kind of developing solution of plasma flat panel display according to claim 1 is characterized in that described first screen pack (5) and second screen pack (6) for semicircle, and the pore diameter range of described screen pack is 20-50 μ m.
3. the retracting device of silver in a kind of developing solution of plasma flat panel display according to claim 1, the material that it is characterized in that described spiral trunk line (8) is a polyvinylchloride, caliber is 5-6 cun, effective length is a 1-2 rice, and spiral trunk line (8) is helicitic texture or bayonet arrangement with the interface of pipeline.
4. the recovery method of silver in the developing solution of plasma flat panel display is used the retracting device of silver in the developing solution of plasma flat panel display as claimed in claim 1, it is characterized in that it may further comprise the steps:
(a). at first, the used developer solution in district that will develop flows to isocon (7) and spiral trunk line (8) respectively by pipeline;
(b). the developer solution of outflow spiral trunk line (8) is located to filter at second screen pack (6) and is obtained the silver slurry, and the developer solution after the filtration flow to second dipper (2);
(c). start the flow velocity that first pump (3) increases developer solution in the helical pipe, the developer solution that flows out isocon (7) is located to filter at first screen pack (5) and is obtained the silver slurry, and developer solution after the filtration and the developer solution that flow to first dipper (1) by first pump (3) from second dipper (2) deposit in first dipper (1) lining;
(d). start second pump (4) developer solution in first dipper (1) is extracted into the district of developing,, be sprayed onto on the substrate, continue to develop through nozzle;
(e). regularly pull down spiral trunk line (8), first screen pack (5) and second screen pack (6), reclaim the silver slurry that obtains on spiral trunk line (8) and the screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100249155A CN101576720B (en) | 2009-03-02 | 2009-03-02 | Device and method for recovering silver in developing solution of plasma flat panel display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100249155A CN101576720B (en) | 2009-03-02 | 2009-03-02 | Device and method for recovering silver in developing solution of plasma flat panel display |
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| CN101576720A CN101576720A (en) | 2009-11-11 |
| CN101576720B true CN101576720B (en) | 2011-10-19 |
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| CN104536272A (en) * | 2014-12-05 | 2015-04-22 | 江门崇达电路技术有限公司 | Filtration system of developing machine for PCB production |
| CN105511237B (en) * | 2015-12-04 | 2019-09-24 | 深圳市华星光电技术有限公司 | Developer solution supply system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567090A (en) * | 2003-06-27 | 2005-01-19 | 友达光电股份有限公司 | Reclaiming system for tetramethylammonium hydroxide developing liquid and method therefor |
| CN201387536Y (en) * | 2009-03-02 | 2010-01-20 | 南京华显高科有限公司 | Recycling device of silver in developing solution of plasma flat panel display |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567090A (en) * | 2003-06-27 | 2005-01-19 | 友达光电股份有限公司 | Reclaiming system for tetramethylammonium hydroxide developing liquid and method therefor |
| CN201387536Y (en) * | 2009-03-02 | 2010-01-20 | 南京华显高科有限公司 | Recycling device of silver in developing solution of plasma flat panel display |
Non-Patent Citations (2)
| Title |
|---|
| JP平3-188447A 1991.08.16 |
| JP平3-33852A 1991.02.14 |
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Granted publication date: 20111019 Termination date: 20130302 |