WO2012073625A1 - Dispositif d'examen de verre fondu - Google Patents
Dispositif d'examen de verre fondu Download PDFInfo
- Publication number
- WO2012073625A1 WO2012073625A1 PCT/JP2011/074878 JP2011074878W WO2012073625A1 WO 2012073625 A1 WO2012073625 A1 WO 2012073625A1 JP 2011074878 W JP2011074878 W JP 2011074878W WO 2012073625 A1 WO2012073625 A1 WO 2012073625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molten glass
- flow rate
- image
- flowing down
- defect
- Prior art date
Links
- 239000006060 molten glass Substances 0.000 title claims abstract description 145
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000007547 defect Effects 0.000 claims description 70
- 238000007689 inspection Methods 0.000 claims description 25
- 238000002844 melting Methods 0.000 claims description 22
- 230000008018 melting Effects 0.000 claims description 22
- 238000003384 imaging method Methods 0.000 claims description 21
- 230000005484 gravity Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 17
- 238000003756 stirring Methods 0.000 description 8
- 230000032258 transport Effects 0.000 description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000010583 slow cooling Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000005329 float glass Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000007500 overflow downdraw method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940022409 overtime Drugs 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
-
- 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
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
- C03B5/262—Drains, i.e. means to dump glass melt or remove unwanted materials
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Definitions
- the present invention relates to an inspection apparatus for molten glass.
- a manufacturing method of a glass substrate for FPD Flat Panel Display
- a manufacturing method by a float method, an overflow down draw method, or the like is known.
- the glass manufacturing apparatus by these manufacturing methods is comprised from the melting tank, the shaping
- the glass manufacturing apparatus disclosed in Patent Document 1 includes a melting tank, a stirring pot, a pipe feeder, a molding pot, and the like.
- the stirrer is provided with a stirrer for stirring the molten glass in the stirring pot, and a drain pipe for discharging the molten glass collected at the bottom of the stirring pot is provided at the bottom of the stirring pot.
- a glass raw material is melted into a molten glass in a melting tank, and this molten glass is caused to flow from the melting tank into a stirring pot. Then, the homogeneity of the molten glass is increased by stirring the molten glass with a stirrer in the stirring pot, and then the molten glass is allowed to flow into the molding pot through the pipe feeder while adjusting the temperature.
- the molten glass that is constantly discharged (flowed down) from the drain pipe is collected and the properties of the currently manufactured molten glass are inspected.
- the inspection items are defects such as bubbles inherent in the molten glass and the flow rate (mass) of the molten glass discharged from the drain tube.
- ⁇ ⁇ Regarding defect inspection, a small amount of molten glass is collected, and this is evaluated by counting the number of bubbles visually or using a magnifying glass and converting it to the number per unit mass of the molten glass.
- the defect inspection is performed every few hours by an operator, and the time spent for one inspection is several tens of minutes.
- molten glass that has flowed down for several seconds is collected, the flow rate is measured, and this is converted into a flow rate per unit time (24 hours).
- the flow rate measurement is performed every few hours by an operator, and the time spent for one measurement is several minutes. Since the molten glass is always extracted from the drain tube, the flow rate of the extracted molten glass can be grasped.
- the flow rate of the molten glass extracted is grasped, and the change with time in the flow rate of the molten glass flowing out of the melting tank (CHANGE_over_time) can be grasped by the total amount of the flow rate of the molten glass and the volume of the formed glass plate.
- the present invention has been made in view of such circumstances, and is capable of saving labor and shortening the number of defects information totaling time, and melting that can grasp minute fluctuations in the number of defects by shortening the inspection time interval. It aims at providing the inspection apparatus of glass.
- the present invention is an apparatus for inspecting molten glass that causes molten glass to flow down by a drain pipe and inspects the molten glass that is flowing down, and is configured to detect the molten glass that is flowing down at a predetermined imaging interval.
- a defect inherent in the molten glass based on the image binarized by the image capturing means for intermittently capturing the image, the image processing means for binarizing the image captured by the image capturing means, and the image binarized by the image processing means
- a molten glass inspection apparatus comprising: defect detection counting means for detecting and counting defects, and defect display means for displaying the defect counting results counted by the defect detection counting means in time series.
- the molten glass flowing down from the drain pipe is intermittently imaged at predetermined imaging intervals by the imaging means.
- the imaging interval is preferably 1 second or less in order to grasp a fine variation in the number of defects inherent in the molten glass.
- the image picked up by the image pickup means is binarized by the image processing means.
- defects such as bubbles are identified as a white image
- molten glass is identified as a black image.
- the defect detection counting means detects and counts defects inherent in the molten glass. That is, the defect detection counting means detects white images that are defects in the binarized image, and counts the number of white images as the number of defects. And the count result of the fault counted by the fault detection counting means is displayed in time series by the fault display means.
- the defect count information counting time can be shortened by the image processing means and the defect detection counting means. Further, since the inspection time interval can be shortened, it is possible to grasp the minute fluctuations in the number of defects. At this time, since the defect count results are displayed in time series on the defect display means, the count results can be visualized, and therefore the fine fluctuation of the defect count can be easily grasped.
- the present invention provides an amount of movement for calculating the amount of movement of the defect based on two images of an arbitrary image and an image temporally adjacent to the image among a plurality of images binarized by the image processing means. Obtained by the flow rate calculation means, the flow rate calculation means for calculating the flow rate of the molten glass flowing down by dividing the movement amount of the defect obtained by the movement amount calculation means by the imaging interval, and the flow rate calculation means.
- the unit time of the molten glass flowing down It is preferable to include a flow rate calculation unit that calculates a hit flow rate, and a flow rate display unit that displays the flow rate calculated by the flow rate calculation unit in time series.
- the movement amount calculating unit moves a defect based on two images of an arbitrary image and an image temporally adjacent to the image among the images binarized by the image processing unit. Calculate the amount.
- the flow velocity calculation means calculates the flow velocity of the molten glass flowing down from the drain pipe by dividing the movement amount of the defect by the imaging interval.
- the flow rate calculation means calculates the flow rate per unit time of the molten glass flowing down by multiplying the flow velocity by the cross-sectional area of the molten glass flowing down and the specific gravity of the molten glass.
- the flow rate display means displays the flow rate of the molten glass flowing down in time series.
- the present invention calculates the number of defects per unit flow rate of the molten glass flowing down based on the number of defects counted by the defect detection counting means and the flow rate calculated by the flow rate calculation means. It is preferable to provide a defect number calculating means.
- the number of defects per unit flow rate of the molten glass flowing down from the drain pipe can be calculated by the defect number calculating means. Therefore, the quality of the molten glass currently manufactured can be confirmed in real time.
- the present invention is based on an image of the molten glass picked up by the image pickup means, a luminance measuring means for measuring the luminance of the molten glass that is flowing down, and the luminance measured by the luminance measuring means is displayed in time series. And a luminance display means.
- the luminance measuring unit measures the luminance of the molten glass flowing down from the drain pipe based on the image captured by the imaging unit.
- luminance display means displays the brightness
- the molten glass flowing down is a part of the molten glass produced in a melting tank.
- the drain pipe of the present invention is provided on at least one of the bottom part of the molten glass conveyance pipe and the bottom part of the melting tank provided between the melting tank and the molding device.
- the produced molten glass is always extracted from the drain pipe and inspected by the molten glass inspection apparatus of the present invention.
- the molten glass inspecting apparatus of the present invention it is possible to save labor and shorten the information counting time of the number of defects, and to shorten the interval of the inspection time, so that it is possible to grasp minute fluctuations in the number of defects. .
- FIG. 1 is a schematic cross-sectional view of a float glass manufacturing apparatus.
- FIG. 2 is a timing chart showing the imaging interval of the electronic camera.
- FIG. 3A is a graph showing the number of defects displayed in time series on the monitor.
- FIG. 3B is a graph showing the flow rate displayed in time series on the monitor.
- FIG. 3C is a graph showing luminance displayed in time series on the monitor.
- 4 (A) and 4 (B) are explanatory views showing moving images of bubbles used for calculating the flow rate of the molten glass.
- FIG. 1 is a schematic cross-sectional view of a float glass manufacturing apparatus 12.
- the glass manufacturing apparatus 12 includes a melting tank 14 and a bus 16 that is a molding apparatus, and the melting tank 14 and the bus 16 are connected via a transport pipe 18 that transports molten glass. Therefore, the molten glass G manufactured by the melting tank 14 passes through the transport pipe 18 and is supplied to the bus 16.
- bath 16 you may arrange
- the melting tank 14 melts the glass raw material at a high temperature obtained by using the heat of the flame obtained by burning the fuel or using electric heat, for example, a high temperature of about 1500 ° C. or more in the case of alkali-free glass.
- the molten glass G is manufactured.
- the molten glass G manufactured in the melting tank 14 is paid out to the transport pipe 18 through a discharge port 22 opened in the downstream side wall surface 20 of the melting tank 14.
- the glass plate is manufactured by the following method.
- a glass raw material is continuously charged into the melting tank 14, heated and melted at a temperature corresponding to the physical properties of the glass raw material, and circulated by convection.
- the defoaming efficiency of the molten glass G can be increased.
- the outlet 22 is opened near the bottom 24 of the downstream side wall surface 20 and contains bubbles. The molten glass G is prevented from flowing out to the conveying pipe 18 as much as possible.
- Molten tin 26 is stored in the bath 16, and molten glass G is supplied to the surface of the molten tin 26 on the upstream side of the bath 16.
- the molten glass G supplied to the molten tin 26 on the upstream side of the bus 16 is formed into a plate shape while being spread on the surface of the molten tin 26 and formed into a predetermined plate thickness.
- the molten glass G formed into a plate shape is carried into a slow cooling furnace (not shown) from the downstream side of the bus 16 while being pulled to the downstream side of the bath 16, where it is cooled to room temperature.
- the cooled strip-shaped plate glass is cut by a cutting device arranged at the rear stage of the slow cooling furnace to become an alkali-free glass plate having a desired size.
- the above is a manufacturing method of an alkali free glass plate.
- a drain pipe 28 is connected to the bottom of the transport pipe 18 in the vertical direction.
- the drain pipe 28 includes a straight discharge pipe 30 and an orifice 32. A part of the molten glass G that passes through the transport pipe 18 is always extracted from the drain pipe 28. That is, a part of the molten glass G always flows down from the orifice 32 of the drain pipe 28.
- the molten glass inspection apparatus 10 is an apparatus for inspecting a molten glass G ⁇ b> 1 flowing down from a drain pipe 28.
- the inspection apparatus 10 includes an electronic camera (imaging unit) 34, an image processing unit (image processing unit) 36, a calculation unit (defect detection counting unit, movement amount calculation unit, flow rate calculation unit, flow rate calculation unit, defect number calculation unit, (Luminance measuring means) 38 and a monitor (defect display means, flow rate display means, luminance display means) 40.
- the electronic camera 34 images the molten glass G1 flowing down from the drain tube 28 intermittently at a predetermined imaging interval.
- FIG. 2 is a timing chart showing the imaging interval of the electronic camera 34.
- the trigger of the imaging timing is set by Trg1 and Trg2, the trigger setting T1 from Trg1 to Trg2 is 35 msec, and the trigger setting T2 from Trg1 to the next Trg1 (one cycle) is 1000 msec. Each is set.
- the shutter speed of the electronic camera 34 is set to 1/1500 sec. Therefore, the electronic camera 34 is set to capture two images of the molten glass G1 in one second.
- the trigger setting T2 is not limited to this setting in which one cycle is 1 second, but it is preferable that one cycle be within 1 second in order to grasp a fine variation in the number of defects.
- the trigger setting T1 from Trg1 to Trg2 is not limited to 35 msec.
- the amount of movement of bubbles (defects) that freely fall together with the molten glass G1 is calculated from the two images captured at the timings of Trg1 and Trg2. Therefore, it is preferable to set the imaging interval to an interval at which the bubble movement amount can be easily calculated in consideration of the visual field width of the electronic camera 34, the resolution, and the like.
- the electronic camera 34 is disposed so as to be inclined at an angle ⁇ with respect to the flow direction of the molten glass G1. Bubbles inherent in the molten glass G1 follow the flow of the molten glass G1, extend in the flow direction, and are easily deformed into an elongated shape. In the binarization process to be described later, it is difficult to identify elongated bubbles inherent in the molten glass G1. When the installation direction of the electronic camera 34 is inclined with respect to the flow-down direction of the molten glass G1, even in the case of an elongated bubble, the bubble can be easily identified in the binarization process described later.
- the electronic camera 34 is preferably cooled by a cooling device (not shown). Since the periphery of the glass manufacturing apparatus 12 is at a high temperature, the electronic camera 34 may be damaged by the temperature. Therefore, the electronic camera 34 is cooled by the cooling device, so that damage due to high temperature can be prevented.
- the image processing unit 36 When the image processing unit 36 captures an image of the molten glass G1 captured by the electronic camera 34, the image processing unit 36 immediately binarizes the image. In the binarized image, defects such as bubbles are identified as a white image, and molten glass is identified as a black image.
- the calculation unit 38 detects and counts defects inherent in the molten glass G1. That is, the calculation unit 38 detects white images that are defect images among the binarized images, and counts the number of white images as the number of defects. Then, the count results of the defects counted by the calculation unit 38 are displayed on the monitor 40 in time series as shown in FIG. 3A.
- FIG. 3A is a graph showing the number N of defects displayed on the monitor 40 in time series.
- the vertical axis of the graph of FIG. 3A represents the number N of defects, and the horizontal axis represents elapsed time t.
- FIG. 3A shows two graphs A and B showing the number of defects.
- the reason why the two graphs A and B are shown is that the calculation unit 38 detects the size of the white image and displays the number of defects for each predetermined size. When the defect sizes are finely distinguished, three or more graphs are obtained, and when only the total defect number is displayed, one graph is obtained.
- the use of the electronic camera 34 can save labor. Further, the image processing unit 36 and the calculation unit 38 can shorten the defect count information totaling time. Further, since the inspection time interval can be shortened, it is possible to grasp a minute variation in the number of defects. At this time, since the count results of the defects are displayed in time series on the monitor 40, the count results can be visualized, so that the minute fluctuations in the number of defects can be easily grasped.
- the calculation unit 38 has a function of calculating the flow rate of the molten glass G1 in addition to the defect counting function described above.
- 4 (A) and 4 (B) are explanatory views showing moving images of bubbles used to calculate the flow rate of the molten glass G1.
- the calculation unit 38 selects two of the images binarized by the image processing unit 36 and the arbitrary image shown in FIGS. 4A and 4B and the image temporally adjacent to the image.
- a movement amount (falling amount) S of the bubble B is calculated based on the image.
- 4A is an image of the molten glass G1 imaged at the timing of Trg1 in FIG. 2
- FIG. 4B is an image of the molten glass G1 imaged at the timing of Trg2 in FIG.
- the computing unit 38 calculates the flow velocity V of the molten glass G1 flowing down from the drain pipe 28 by dividing the movement amount S of the bubble B by the imaging interval (35 msec).
- the calculation unit 38 sets the cross-sectional area of the molten glass G1 in the direction orthogonal to the flow direction of the molten glass G1 flowing down from the drain pipe 28 and the specific gravity of the molten glass G1 flowing down from the drain pipe 28 to the flow velocity V.
- FIG. 3B is a graph showing the flow rate F displayed on the monitor 40 in time series.
- the vertical axis of the graph in FIG. 3B represents the flow rate F, and the horizontal axis represents the elapsed time t.
- the molten glass inspection apparatus 10 can shorten the information counting time of the flow rate of the molten glass G1, and thus can grasp the minute fluctuation of the flow rate.
- the cross-sectional area of the molten glass G1 used for the calculation is an average cross-sectional area calculated from the maximum radius r1 and the minimum radius r2 of the molten glass G1 shown in the image of FIG.
- the calculation unit 38 calculates the number of bubbles per unit flow rate of the molten glass G1 flowing down from the drain pipe 28 based on the number of bubbles counted by the calculation unit 38 and the flow rate of the molten glass G1 calculated by the calculation unit 38. Calculate the number. Thereby, the quality of the molten glass G currently manufactured with the melting tank 14 can be confirmed in real time.
- the calculation unit 38 can measure the luminance of the molten glass G1 flowing down from the drain tube 28 based on the image of the molten glass G1 captured by the electronic camera 34. Then, the calculation unit 38 displays the luminance measured by the calculation unit 38 on the monitor 40 in time series.
- FIG. 3C is a graph showing the luminance L displayed in time series on the monitor 40.
- the vertical axis of the graph in FIG. 3C represents the luminance L, and the horizontal axis represents the elapsed time t.
- the electronic camera 34 images the molten glass G1 without using an illumination device, the luminance of the molten glass G1 can be accurately measured. If the brightness
- the glass manufacturing apparatus 12 using the bus 16 is exemplified, but the present invention is not limited to this, and other manufacturing methods such as a redraw method, a slot down draw method, an overflow down draw method, and It can also be applied to glass manufacturing equipment such as the pulling method.
- G ... Molten glass, G1 ... Molten glass, 10 ... Inspection device, 12 ... Glass manufacturing device, 14 ... Melting tank, 16 ... Bath, 18 ... Transport pipe, 20 ... Downstream side wall surface, 22 ... Discharge outlet, 24 ... Bottom, 26 ... Molten tin, 28 ... Drain pipe, 30 ... Discharge pipe, 32 ... Orifice, 34 ... Electronic camera, 36 ... Image processing part, 38 ... Calculation part, 40 ... Monitor
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180057748.XA CN103237766B (zh) | 2010-12-01 | 2011-10-27 | 熔融玻璃的检查装置 |
JP2012546744A JPWO2012073625A1 (ja) | 2010-12-01 | 2011-10-27 | 溶融ガラスの検査装置 |
KR1020137014012A KR20140001927A (ko) | 2010-12-01 | 2011-10-27 | 용융 유리의 검사 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010268061 | 2010-12-01 | ||
JP2010-268061 | 2010-12-01 |
Publications (1)
Publication Number | Publication Date |
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WO2012073625A1 true WO2012073625A1 (fr) | 2012-06-07 |
Family
ID=46171575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/074878 WO2012073625A1 (fr) | 2010-12-01 | 2011-10-27 | Dispositif d'examen de verre fondu |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2012073625A1 (fr) |
KR (1) | KR20140001927A (fr) |
CN (1) | CN103237766B (fr) |
TW (1) | TW201226887A (fr) |
WO (1) | WO2012073625A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020132444A (ja) * | 2019-02-14 | 2020-08-31 | AvanStrate株式会社 | ガラス基板の製造方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102040254B1 (ko) * | 2016-01-07 | 2019-11-04 | 주식회사 엘지화학 | 유리 내 기포 수량 측정 방법 및 장치 |
CN114466809A (zh) * | 2019-10-16 | 2022-05-10 | 倍耐力轮胎股份公司 | 用于计量连续长形元件的方法和装置 |
CN112986283B (zh) * | 2021-02-05 | 2022-07-26 | 安徽绿舟科技有限公司 | 基于视觉分析热熔缺陷的在线检测和控制方法 |
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JP2005233679A (ja) * | 2004-02-17 | 2005-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | 流下ガラス流下速度計測方法および計測装置 |
JP2009161396A (ja) * | 2008-01-07 | 2009-07-23 | Nippon Electric Glass Co Ltd | ガラス物品の製造方法、ガラス物品及びガラス熔融面監視システム |
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FR2536860B1 (fr) * | 1982-11-25 | 1985-06-14 | Saint Gobain Isover | Procede et dispositif pour l'analyse d'heterogeneites dans un materiau transparent |
KR20040015728A (ko) * | 2001-07-05 | 2004-02-19 | 닛폰 이타가라스 가부시키가이샤 | 시트형 투명체의 결점을 검사하는 방법 및 장치 |
CN201041552Y (zh) * | 2007-04-11 | 2008-03-26 | 华中科技大学 | 一种基于机器视觉的浮法玻璃缺陷在线检测装置 |
CN101750422A (zh) * | 2010-01-07 | 2010-06-23 | 秦皇岛凯维科技有限公司 | 一种玻璃缺陷的在线自动检测装置 |
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2011
- 2011-10-27 KR KR1020137014012A patent/KR20140001927A/ko not_active Application Discontinuation
- 2011-10-27 CN CN201180057748.XA patent/CN103237766B/zh active Active
- 2011-10-27 JP JP2012546744A patent/JPWO2012073625A1/ja active Pending
- 2011-10-27 WO PCT/JP2011/074878 patent/WO2012073625A1/fr active Application Filing
- 2011-11-03 TW TW100140198A patent/TW201226887A/zh unknown
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JP2005233679A (ja) * | 2004-02-17 | 2005-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | 流下ガラス流下速度計測方法および計測装置 |
JP2009161396A (ja) * | 2008-01-07 | 2009-07-23 | Nippon Electric Glass Co Ltd | ガラス物品の製造方法、ガラス物品及びガラス熔融面監視システム |
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JP2020132444A (ja) * | 2019-02-14 | 2020-08-31 | AvanStrate株式会社 | ガラス基板の製造方法 |
JP7220583B2 (ja) | 2019-02-14 | 2023-02-10 | AvanStrate株式会社 | ガラス基板の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN103237766A (zh) | 2013-08-07 |
KR20140001927A (ko) | 2014-01-07 |
JPWO2012073625A1 (ja) | 2014-05-19 |
CN103237766B (zh) | 2015-11-25 |
TW201226887A (en) | 2012-07-01 |
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