CN102898016A - Apparatus and method for inhibiting TFT-LCD substrate glass bubbles - Google Patents
Apparatus and method for inhibiting TFT-LCD substrate glass bubbles Download PDFInfo
- Publication number
- CN102898016A CN102898016A CN2012102776183A CN201210277618A CN102898016A CN 102898016 A CN102898016 A CN 102898016A CN 2012102776183 A CN2012102776183 A CN 2012102776183A CN 201210277618 A CN201210277618 A CN 201210277618A CN 102898016 A CN102898016 A CN 102898016A
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- steam
- tft
- pipeline
- base plate
- bubble formation
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention relates to an apparatus and a amethod for inhibiting TFT-LCD substrate glass bubbles, the apparatus comprises a seal container and a set of control system, a high temperature glass liquid flows through a glass liquid transmission pipeline, one segment pipeline by flowing through is bounded by a seal container, a seal space is formed between the pipeline external surface and seal container interior surface; steam is sent by a steam air inlet pipe, and is penetrated into a steam cycle pipeline through a steam inlet valve, and enters in a seal space through a cycle inlet valve, the steam in a seal space is returned to a steam circulating pipe by circulating to an air valve; and steam content in the seal space is controlled by a set of closed loop control system. The effect scope is a cooling segment during the glass transmission process, the possibility of new bubbles generation during the cooling process is substantially reduced.
Description
Invention field
The present invention relates in TFT-LCD base plate glass manufacturing processed, suppress by the atmosphere that controls environment the device and method of Bubble formation.
Background technology
The TFT-LCD base plate glass is a kind of starting material of the TFT-LCD of being applied to flat-panel monitor, reason owing to production technique, it is easy to produce bubble in manufacturing processed, and the TFT-LCD flat-panel monitor has very strict restriction to size, the quantity of bubble in the TFT-LCD base plate glass.The main flow manufacturing process of TFT-LCD base plate glass is fusing, transmission, one-tenth plate, post-processed.And melt, transmit the easiest generation bubble of operation.If these bubbles can not be discharged from glass melt before becoming plate, will cause product bad, even become waste product.About the countermeasure of air bubble problem, comparatively popular method is to adopt the oxide compound of arsenic and antimony as row's infusion.But arsenic and antimony can pollute environment, are therefore banned use of by some areas.The product that contains arsenic and antimony can be subject to the restriction of region on selling.
The invention summary
The purpose of this invention is to provide a kind of device and method that suppresses Bubble formation in TFT-LCD base plate glass transmission operation, namely the method by water vapour content in the control section glass delivery vehicle surrounding atmosphere suppresses Bubble formation.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of device that suppresses TFT-LCD base plate glass Bubble formation, it is characterized in that, comprise a sealed vessel, in the sealing container is enclosed in a section of glass metal transfer canal, form a seal cavity between this inner surface of container and the glass Transfer pipe outside surface; The rear and front end of sealed vessel is connected with a steam cycle pipeline, and this steam cycle pipeline is connected with the steam inlet pipeline; Steam inlet pipeline and steam cycle pipeline junction are provided with the steam inlet valve, and steam cycle pipeline and sealed vessel front end junction are provided with the circulation air intake valve; Steam cycle pipeline and junction, sealed vessel rear end are provided with and loop back air valve, a humidity sensor is set in the sealed vessel at least, and described humidity sensor, steam inlet valve, air intake valve and loop back the closed loop control system that air valve consists of steam circulates.
In the such scheme, one section of described glass metal transfer canal is straight pipeline, or is the angled pipelines of two segments.Wherein said angle is greater than 0 °, less than or equal to 90 °.
Described sealed vessel inwall adopts flame-proof thermal insulation material to make, and outer wall adopts the non-magnetic rustproof steel to make.Minor increment 100mm between inner surface of container and the glass Transfer pipe outside surface, ultimate range 3000mm.
A kind of method that adopts aforementioned means to suppress TFT-LCD base plate glass Bubble formation is characterized in that, comprising:
(1) high temp glass liquid flows through from the glass metal transfer canal, and the outer sealed container of a segment pipe of flowing through surrounds, and has formed a seal cavity between the internal surface of this segment pipe outside surface and sealed vessel;
(2) steam is sent to by the steam inlet pipeline, enter the steam cycle pipeline by the steam inlet valve, the steam that enters the steam cycle pipeline is rushed in seal cavity by the circulation air intake valve, and the steam in the seal cavity is got back to the steam cycle pipeline by looping back air valve;
(3) content of steam in seal cavity by humidity sensor, steam inlet valve, air intake valve and loop back the closed loop control system control that air valve consists of steam circulates.
When effect of the present invention focused on glass by sealed vessel, the content of control inside glass water suppressed moisture content electrolysis, vaporization.Major advantage is, the cooling section of sphere of action in the glass transport process reduces greatly so that glass produces the possibility of new bubble in process of cooling, no matter arsenic is arranged or without the situation of arsenic under can play the effect of good inhibition Bubble formation.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and the specific embodiments.
Fig. 1 is cooling segment melt flow figure synoptic diagram in the glass making system of the present invention.Among the figure: 1, glass metal transfer canal; 2, sealed vessel; 3, steam cycle pipeline; 4, humidity sensor; 5, circulation air intake valve; 6, steam inlet valve; 7, loop back air valve; 8, seal cavity; 9, high temp glass liquid; 10, steam; 11, steam inlet pipeline.
Embodiment
The case that illustrates is the situation of glass under high temperature (1200 ℃～1680 ℃).The material of glass metal transfer canal 1 is precious metal or their alloys such as platinum, rhodium, palladium.
As shown in Figure 1, high temp glass liquid 9 flows through from glass metal transfer canal 1, and the outer sealed container 2 of a segment pipe of flowing through surrounds, and this segment pipe can be straight, also can be the pipeline of two segments angled (greater than 0 °, less than or equal to 90 °).Sealed vessel 2 inwalls adopt flame-proof thermal insulation material to consist of, and outer wall adopts the non-magnetic rustproof steel to consist of; In this container is included in the cooling section of glass Transfer pipe; Minor increment 100mm between this inner surface of container and glass Transfer pipe 1 outside surface, ultimate range 3000mm, between form a seal cavity 8.
Steam 10 is sent to by steam inlet pipeline 11, and the steam inlet valve 6 by steam inlet pipeline 11 and steam cycle pipeline 3 junctions enters steam cycle pipeline 3.Steam cycle pipeline 3 is connected with the rear and front end of sealed vessel 2 respectively, and steam cycle pipeline 3 is provided with circulation air intake valve 5 with sealed vessel 2 front end junctions; Steam cycle pipeline 3 is provided with junction, sealed vessel 2 rear end and loops back air valve 7, the steam that enters steam cycle pipeline 3 is rushed in seal cavity 8 by circulation air intake valve 5, and the steam in the seal cavity 8 is got back to steam cycle pipeline 3 by looping back air valve 7.Be provided with humidity sensor 4 near near the circulation air intake valve 5 in the sealed vessel 2, such humidity sensor 4 elsewhere in sealed vessel 2 also can arrange a plurality of.Humidity sensor 4, steam inlet valve 6, circulation air intake valve 5 and loop back the closed loop control system that air valve 7 consists of steam.The content of steam 10 in seal cavity 8 is by this Controlling System control.
Experiment confirm, seal cavity 8 interior steam contents (volume content) are controlled in greater than 10% and less than 30%, and the moisture content in the high temp glass liquid 9 is not easy electrolysis, gasification, thereby has reached the purpose that suppresses Bubble formation.
Claims (7)
1. device that suppresses TFT-LCD base plate glass Bubble formation, it is characterized in that, comprise a sealed vessel, in the sealing container is enclosed in a section of glass metal transfer canal, form a seal cavity between this inner surface of container and the glass metal transfer canal outside surface; The rear and front end of sealed vessel is connected with a steam cycle pipeline, and this steam cycle pipeline is connected with the steam inlet pipeline; Steam inlet pipeline and steam cycle pipeline junction are provided with the steam inlet valve, and steam cycle pipeline and sealed vessel front end junction are provided with the circulation air intake valve; Steam cycle pipeline and junction, sealed vessel rear end are provided with and loop back air valve, a humidity sensor is set in the sealed vessel at least, and described humidity sensor, steam inlet valve, air intake valve and loop back the closed loop control system that air valve consists of steam circulates.
2. the device of inhibition TFT-LCD base plate glass Bubble formation as claimed in claim 1 is characterized in that one section of described glass metal transfer canal is straight pipeline, or is the angled pipelines of two segments.
3. the device of inhibition TFT-LCD base plate glass Bubble formation as claimed in claim 2 is characterized in that described angle is greater than 0 °, less than or equal to 90 °.
4. the device of inhibition TFT-LCD base plate glass Bubble formation as claimed in claim 1 is characterized in that minor increment 100mm between described encloses container internal surface and the glass metal transfer canal outside surface, ultimate range 3000mm.
5. the device of inhibition TFT-LCD base plate glass Bubble formation as claimed in claim 1 is characterized in that described sealed vessel inwall adopts flame-proof thermal insulation material to make, and outer wall adopts the non-magnetic rustproof steel to make.
6. a method that suppresses TFT-LCD base plate glass Bubble formation is characterized in that, realizes by the device of inhibition TFT-LCD base plate glass Bubble formation claimed in claim 1, specifically comprises:
(1) high temp glass liquid flows through from the glass metal transfer canal, and the outer sealed container of a segment pipe of flowing through surrounds, and has formed a seal cavity between the internal surface of this segment pipe outside surface and sealed vessel;
(2) steam is sent to by the steam inlet pipeline, enter the steam cycle pipeline by the steam inlet valve, the steam that enters the steam cycle pipeline is rushed in seal cavity by the circulation air intake valve, and the steam in the seal cavity is got back to the steam cycle pipeline by looping back air valve;
(3) content of steam in seal cavity by humidity sensor, steam inlet valve, air intake valve and loop back the closed loop control system control that air valve consists of steam circulates.
7. the method for inhibition TFT-LCD base plate glass Bubble formation as claimed in claim 6 is characterized in that vapour volume content is controlled in greater than 10% and less than 30% in the seal cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102776183A CN102898016A (en) | 2012-08-06 | 2012-08-06 | Apparatus and method for inhibiting TFT-LCD substrate glass bubbles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102776183A CN102898016A (en) | 2012-08-06 | 2012-08-06 | Apparatus and method for inhibiting TFT-LCD substrate glass bubbles |
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| Publication Number | Publication Date |
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| CN102898016A true CN102898016A (en) | 2013-01-30 |
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| CN2012102776183A Pending CN102898016A (en) | 2012-08-06 | 2012-08-06 | Apparatus and method for inhibiting TFT-LCD substrate glass bubbles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671638A (en) * | 2014-12-31 | 2015-06-03 | 彩虹（合肥）液晶玻璃有限公司 | System and method for controlling atmosphere condition of noble metal channel |
| WO2016200788A3 (en) * | 2015-06-10 | 2017-01-19 | Corning Incorporated | Apparatus and method for conditioning molten glass |
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| US4919700A (en) * | 1989-01-03 | 1990-04-24 | Ppg Industries, Inc. | Vacuum refining of glassy materials with selected water content |
| JPH08283031A (en) * | 1995-04-07 | 1996-10-29 | Nippon Electric Glass Co Ltd | Production of glass tube |
| US5785726A (en) * | 1996-10-28 | 1998-07-28 | Corning Incorporated | Method of reducing bubbles at the vessel/glass interface in a glass manufacturing system |
| CN101166696A (en) * | 2005-04-27 | 2008-04-23 | 康宁股份有限公司 | System and method for controlling the environment around one or more vessels in a glass manufacturing system |
| CN101506109A (en) * | 2006-08-30 | 2009-08-12 | 旭硝子株式会社 | Glass-making processes |
| CN102388001A (en) * | 2009-03-09 | 2012-03-21 | 日东纺绩株式会社 | Glass-melting device for producing glass fiber and method for producing glass fiber |
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2012
- 2012-08-06 CN CN2012102776183A patent/CN102898016A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919700A (en) * | 1989-01-03 | 1990-04-24 | Ppg Industries, Inc. | Vacuum refining of glassy materials with selected water content |
| JPH08283031A (en) * | 1995-04-07 | 1996-10-29 | Nippon Electric Glass Co Ltd | Production of glass tube |
| US5785726A (en) * | 1996-10-28 | 1998-07-28 | Corning Incorporated | Method of reducing bubbles at the vessel/glass interface in a glass manufacturing system |
| CN101166696A (en) * | 2005-04-27 | 2008-04-23 | 康宁股份有限公司 | System and method for controlling the environment around one or more vessels in a glass manufacturing system |
| CN101506109A (en) * | 2006-08-30 | 2009-08-12 | 旭硝子株式会社 | Glass-making processes |
| CN102388001A (en) * | 2009-03-09 | 2012-03-21 | 日东纺绩株式会社 | Glass-melting device for producing glass fiber and method for producing glass fiber |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671638A (en) * | 2014-12-31 | 2015-06-03 | 彩虹（合肥）液晶玻璃有限公司 | System and method for controlling atmosphere condition of noble metal channel |
| CN104671638B (en) * | 2014-12-31 | 2017-08-29 | 彩虹（合肥）液晶玻璃有限公司 | A kind of system and method for control noble metal channel atmospheric condition |
| WO2016200788A3 (en) * | 2015-06-10 | 2017-01-19 | Corning Incorporated | Apparatus and method for conditioning molten glass |
| CN107922232A (en) * | 2015-06-10 | 2018-04-17 | 康宁股份有限公司 | For adjusting the apparatus and method of melten glass |
| US10538449B2 (en) | 2015-06-10 | 2020-01-21 | Corning Incorporated | Apparatus and method for conditioning molten glass |
| CN107922232B (en) * | 2015-06-10 | 2020-12-08 | 康宁股份有限公司 | Apparatus and method for conditioning molten glass |
| TWI718154B (en) * | 2015-06-10 | 2021-02-11 | 美商康寧公司 | Apparatus and method for conditioning molten glass |
| US10934200B2 (en) | 2015-06-10 | 2021-03-02 | Corning Incorporated | Apparatus and method for conditioning molten glass |
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Application publication date: 20130130 |