TWI414493B - Glass plate making device and glass plate cooling method - Google Patents
Glass plate making device and glass plate cooling method Download PDFInfo
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- TWI414493B TWI414493B TW102110645A TW102110645A TWI414493B TW I414493 B TWI414493 B TW I414493B TW 102110645 A TW102110645 A TW 102110645A TW 102110645 A TW102110645 A TW 102110645A TW I414493 B TWI414493 B TW I414493B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/067—Forming glass sheets combined with thermal conditioning of the sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
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- 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
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
本發明係關於一種玻璃板製造裝置及玻璃板冷卻方法。The present invention relates to a glass sheet manufacturing apparatus and a glass sheet cooling method.
先前，作為玻璃板之製造方法之一而採用有熔融法。熔融法係使流入成形體中之熔融玻璃自成形體溢流而製造玻璃板。自成形體溢流之熔融玻璃於沿成形體流下之後，在成形體之下端部合流，其後自成形體脫離而成為玻璃板。玻璃板藉由爐內之環境而冷卻，自黏性區域經過黏彈性區域向彈性區域變化。此處，為了防止應於玻璃之黏彈性區域均勻地冷卻之玻璃板之範圍因在爐內產生之對流而被不均勻地冷卻之情形，例如專利文獻1(日本特開平2-225326號公報)所示，提出有於玻璃板之兩側設置板狀構件之技術。Previously, a melting method was employed as one of the methods for producing a glass plate. The melting method causes the molten glass flowing into the molded body to overflow from the molded body to produce a glass plate. After the molten glass overflowing from the molded body flows down the molded body, it merges at the lower end portion of the molded body, and then separates from the molded body to become a glass plate. The glass sheet is cooled by the environment inside the furnace, and the self-adhesive region changes from the viscoelastic region to the elastic region. Here, in order to prevent the range of the glass plate to be uniformly cooled in the viscoelastic region of the glass from being unevenly cooled by the convection generated in the furnace, for example, Patent Document 1 (Japanese Laid-Open Patent Publication No. Hei 2-225326) As shown, a technique of providing a plate-like member on both sides of a glass plate has been proposed.
[先行技術文獻][Advanced technical literature]
[專利文獻][Patent Literature]
[專利文獻1]日本特開平2-225326號公報[Patent Document 1] Japanese Patent Laid-Open No. Hei 2-225326
伴隨近年來之玻璃基板之需求增加，需要提高玻璃板之生產量。然而，於採用先前之技術之情形時，難以充分控制玻璃板之冷卻速度，故無法充分期待生產量之提高。With the increasing demand for glass substrates in recent years, there is a need to increase the production of glass sheets. However, when the prior art is employed, it is difficult to sufficiently control the cooling rate of the glass sheet, and thus the increase in throughput cannot be sufficiently expected.
因此，本發明之課題在於提供一種可調整玻璃板之冷 卻速度之玻璃板製造裝置或玻璃板冷卻方法。Therefore, the object of the present invention is to provide a cold adjustable glass plate. However, the speed of the glass plate manufacturing device or the glass plate cooling method.
本發明之玻璃板製造裝置係於使自成形體溢流之熔融玻璃沿成形體之兩側面流下後，在成形體之下端部附近合流而製造玻璃板者，其具備複數個冷卻調整板、及溫度控制單元。複數個冷卻調整板於較熔融玻璃之合流點更靠下方處沿熔融玻璃之流動方向並列配置，對玻璃板之冷卻速度進行調整。溫度控制單元與各冷卻調整板對應而設置，對各冷卻調整板之溫度進行控制。In the glass sheet manufacturing apparatus of the present invention, the molten glass overflowing from the molded body flows down the both sides of the molded body, and then merges in the vicinity of the lower end portion of the molded body to produce a glass sheet, which includes a plurality of cooling adjustment plates, and Temperature control unit. A plurality of cooling adjustment plates are arranged side by side in the flow direction of the molten glass at a lower point than the junction point of the molten glass, and the cooling rate of the glass plate is adjusted. The temperature control unit is provided corresponding to each of the cooling adjustment plates, and controls the temperature of each of the cooling adjustment plates.
於熔融玻璃之流動方向上並列之冷卻調整板藉由與各冷卻調整板對應之溫度控制單元而分別受到溫度控制。冷卻調整板以藉由溫度控制單元而保持寬度方向之溫度均勻性之方式受到控制，從而對玻璃板之冷卻速度進行調整。The cooling adjustment plates juxtaposed in the flow direction of the molten glass are respectively subjected to temperature control by temperature control units corresponding to the respective cooling adjustment plates. The cooling adjustment plate is controlled so as to maintain the temperature uniformity in the width direction by the temperature control unit, thereby adjusting the cooling rate of the glass sheet.
藉此，可有效地進行玻璃板之溫度控制。Thereby, the temperature control of the glass plate can be effectively performed.
又，較佳為，複數個冷卻調整板配置於上下環境分隔構件之下方。上下環境分隔構件配置於熔融玻璃之合流點之附近並分隔合流點之上側環境及下側環境。Moreover, it is preferable that a plurality of cooling adjustment plates are disposed below the upper and lower environmental partition members. The upper and lower environmental partition members are disposed in the vicinity of the junction point of the molten glass and separate the upper side environment and the lower side environment of the joining point.
於藉由上下環境分隔構件而阻斷成形體之熱之空間內，冷卻調整板對熔融玻璃之冷卻速度進行控制，故溫度控制單元對冷卻之影響難以波及至成形體。又，不使沿成形體上流動之熔融玻璃之最佳玻璃黏度發生變化即可高效地進行黏彈性區域內之玻璃板之溫度控制。In the space in which the heat of the molded body is blocked by the upper and lower environmental partition members, the cooling adjustment plate controls the cooling rate of the molten glass, so that the influence of the temperature control unit on the cooling is hard to reach the molded body. Further, the temperature control of the glass sheet in the viscoelastic region can be efficiently performed without changing the optimum glass viscosity of the molten glass flowing along the molded body.
進而，較佳為，各冷卻調整板於與熔融玻璃之流動方向交叉之水平方向上延伸，溫度控制單元包含管。管中流 通對各冷卻調整板之整體進行冷卻或加熱之流體。Further, it is preferable that each of the cooling adjustment plates extends in a horizontal direction crossing the flow direction of the molten glass, and the temperature control unit includes a tube. Tube flow A fluid that cools or heats the entire cooling adjustment plate.
可藉由於管內流動之流體，自玻璃板對向面之背面側對與玻璃板對向之各冷卻調整板之整體進行冷卻或加熱。The entire cooling adjustment plate facing the glass plate may be cooled or heated from the back side of the opposite side of the glass sheet by the fluid flowing in the tube.
進而，較佳為，管包含主管及副管。主管沿冷卻調整板之長度方向而配置。副管分別連結於主管之兩側部。副管向主管傳送成為熱交換之介質之氣體。又，較佳為，主管具有複數個吹出口。複數個吹出口將自副管傳送之氣體向主管外吹出而吹送至冷卻調整板。Further, preferably, the tube includes a main pipe and a sub pipe. The main pipe is arranged along the length direction of the cooling adjustment plate. The auxiliary pipes are respectively connected to the two sides of the main pipe. The secondary pipe delivers a gas that becomes a medium for heat exchange to the main pipe. Further, preferably, the main pipe has a plurality of air outlets. A plurality of air outlets blow the gas delivered from the auxiliary pipe to the outside of the main pipe and blow it to the cooling adjustment plate.
藉由相對於冷卻調整板而自複數個吹出口吹送氣體，可有效地進行冷卻調整板之溫度控制。By blowing the gas from a plurality of blowout ports with respect to the cooling adjustment plate, the temperature control of the cooling adjustment plate can be effectively performed.
進而，較佳為，複數個吹出口根據距主管之側部之距離而分別具有既定之大小，以使自各吹出口吹出之氣體量變得均勻。Further, it is preferable that the plurality of air outlets have a predetermined size in accordance with the distance from the side portion of the main pipe so that the amount of gas blown from each of the air outlets becomes uniform.
藉由對朝向冷卻調整板吹出氣體之吹出口之大小及位置進行調節，即便以某種程度變更向管供給之氣體之壓力，亦可使於第1方向上延伸之冷卻調整板整體之寬度方向上之冷卻量大致保持為固定。藉由冷卻調整板整體之寬度方向上之冷卻量大致保持為固定，可製造保有較高之平面度之較佳之玻璃板。By adjusting the size and position of the air outlet for blowing the gas toward the cooling adjustment plate, even if the pressure of the gas supplied to the tube is changed to some extent, the width direction of the entire cooling adjustment plate extending in the first direction can be made. The amount of cooling on it remains approximately constant. Since the amount of cooling in the width direction of the entire cooling adjustment plate is kept substantially constant, a preferable glass plate which maintains a high degree of flatness can be manufactured.
又，較佳為，冷卻調整板為ㄈ字型鋼，ㄈ字型鋼之主要部分與玻璃板對向。藉此，可提高冷卻調整板之強度。Further, it is preferable that the cooling adjustment plate is a U-shaped steel, and a main portion of the U-shaped steel is opposed to the glass plate. Thereby, the strength of the cooling adjustment plate can be improved.
進而，較佳為，玻璃板之製造裝置更具備第1包圍構件、第2包圍構件、及隔熱構件。第1包圍構件包圍第1管而形成第1空間。所謂第1管係指流通對第1冷卻調整 板進行冷卻或加熱之流體之管，所謂第1空間係指用以調整第1冷卻調整板之冷卻速度之空間。第2包圍構件包圍第2管而形成第2空間。所謂第2管係指流通對鄰接於第1冷卻調整板之第2冷卻調整板進行冷卻或加熱之流體之管。所謂第2空間係指用以調整第2冷卻調整板之冷卻速度之空間。隔熱構件配置於第1空間與第2空間之間，阻斷第1空間與第2空間之間之熱之移動。Further, it is preferable that the glass sheet manufacturing apparatus further includes a first surrounding member, a second surrounding member, and a heat insulating member. The first surrounding member surrounds the first tube to form a first space. The first tube refers to the circulation to the first cooling adjustment The tube in which the plate is cooled or heated, the first space refers to a space for adjusting the cooling rate of the first cooling adjustment plate. The second surrounding member surrounds the second tube to form a second space. The second pipe is a pipe that circulates a fluid that cools or heats the second cooling adjustment plate adjacent to the first cooling adjustment plate. The second space refers to a space for adjusting the cooling rate of the second cooling adjustment plate. The heat insulating member is disposed between the first space and the second space, and blocks heat transfer between the first space and the second space.
由於藉由隔熱構件阻斷第1空間與第2空間之熱之移動，故於第1冷卻調整板之溫度控制時，可減少對第2冷卻調整板之溫度之影響。Since the heat of the first space and the second space is blocked by the heat insulating member, the influence on the temperature of the second cooling adjustment plate can be reduced during the temperature control of the first cooling adjustment plate.
又，較佳為，玻璃板之製造裝置更具備氣體控制單元。氣體控制單元對吹送至冷卻調整板之氣體之流動進行控制。藉此，可減少自一吹出口向冷卻調整板吹送之氣體對自另一吹出口吹出之氣體造成之影響。Further, it is preferable that the glass plate manufacturing apparatus further includes a gas control unit. The gas control unit controls the flow of gas that is blown to the cooling adjustment plate. Thereby, the influence of the gas blown from the one outlet to the cooling adjustment plate on the gas blown from the other outlet can be reduced.
本發明之玻璃板之冷卻方法係在使自成形體溢流之熔融玻璃沿成形體之兩側面流下後，對於成形體之下端部附近合流而形成之玻璃板進行冷卻者，其具備第1冷卻步驟、及第2冷卻步驟。於第1冷卻步驟中，藉由第1冷卻調整板與第1溫度控制單元對玻璃板進行冷卻。第1冷卻調整板配置於較熔融玻璃之合流點更下方，對玻璃板之冷卻速度進行控制。第1溫度控制單元與第1冷卻調整板對應而設置，對第1冷卻調整板之溫度進行調整。於第2冷卻步驟中，藉由第2冷卻調整板與第2溫度控制單元對玻璃板進行冷卻。第2冷卻調整板對玻璃板之冷卻速度進行控制。 第2溫度控制單元與第2冷卻調整板對應而設置，對第2冷卻調整板之溫度進行調整。第2冷卻調整板及第2溫度控制單元相對於熔融玻璃之流動方向，配置於第1冷卻調整板及上述第1溫度控制單元之下游。又，第2冷卻調整板及第2溫度控制單元分別與第1冷卻調整板及第1之溫度調整單元並列。In the method of cooling a glass sheet according to the present invention, after the molten glass overflowing from the molded body flows down the both sides of the molded body, the glass sheet formed by joining the lower end portions of the molded body is cooled, and the first cooling is provided. Step and second cooling step. In the first cooling step, the glass plate is cooled by the first cooling adjustment plate and the first temperature control unit. The first cooling adjustment plate is disposed below the junction point of the molten glass to control the cooling rate of the glass plate. The first temperature control unit is provided corresponding to the first cooling adjustment plate, and adjusts the temperature of the first cooling adjustment plate. In the second cooling step, the glass plate is cooled by the second cooling adjustment plate and the second temperature control unit. The second cooling adjustment plate controls the cooling rate of the glass plate. The second temperature control unit is provided corresponding to the second cooling adjustment plate, and adjusts the temperature of the second cooling adjustment plate. The second cooling adjustment plate and the second temperature control unit are disposed downstream of the first cooling adjustment plate and the first temperature control unit with respect to the flow direction of the molten glass. Further, the second cooling adjustment plate and the second temperature control unit are arranged in parallel with the first cooling adjustment plate and the first temperature adjustment unit.
於熔融玻璃之流動方向上並列之冷卻調整板藉由與各冷卻調整板對應之溫度控制單元而分別受到溫度控制。冷卻調整板以藉由溫度控制單元而保持寬度方向上之溫度均勻性之方式受到控制，從而對玻璃板之冷卻速度進行控制。The cooling adjustment plates juxtaposed in the flow direction of the molten glass are respectively subjected to temperature control by temperature control units corresponding to the respective cooling adjustment plates. The cooling adjustment plate is controlled in such a manner as to maintain the temperature uniformity in the width direction by the temperature control unit, thereby controlling the cooling rate of the glass sheet.
藉此，可有效地進行玻璃板之溫度控制。Thereby, the temperature control of the glass plate can be effectively performed.
以本發明之玻璃板製造裝置及玻璃板之冷卻方法，可有效地進行玻璃板之溫度控制。According to the glass plate manufacturing apparatus and the glass plate cooling method of the present invention, the temperature control of the glass plate can be effectively performed.
(1)整體構成(1) Overall composition
於圖1中，表示本發明之第1實施形態之玻璃板製造裝置100之概略構成圖。玻璃板製造裝置100係採用熔融法製造玻璃板91之裝置。藉由玻璃板製造裝置100製造之玻璃板91使用於液晶顯示器或電漿顯示器等平板顯示器之玻璃基板。又，於本實施形態中，玻璃板製造裝置100製造使用於G5尺寸之玻璃基板之玻璃板91。玻璃板製造裝置100連續地製造帶狀之玻璃板91。Fig. 1 is a schematic configuration diagram of a glass sheet manufacturing apparatus 100 according to a first embodiment of the present invention. The glass plate manufacturing apparatus 100 is a device which manufactures the glass plate 91 by the fusion method. The glass plate 91 manufactured by the glass plate manufacturing apparatus 100 is used for a glass substrate of a flat panel display such as a liquid crystal display or a plasma display. Moreover, in this embodiment, the glass plate manufacturing apparatus 100 manufactures the glass plate 91 used for the glass substrate of G5 size. The glass sheet manufacturing apparatus 100 continuously manufactures a strip-shaped glass plate 91.
玻璃板製造裝置100主要包含熔解槽200、清澄槽 300、及成形裝置101。於熔解槽200中，玻璃之原料被熔解而生成熔融玻璃。其後，熔融玻璃傳送至清澄槽300內。於清澄槽300內，進行熔融玻璃中之氣泡之去除。其後，熔融玻璃傳送至成形裝置101。The glass plate manufacturing apparatus 100 mainly includes a melting tank 200 and a clear tank 300, and forming device 101. In the melting tank 200, the raw material of the glass is melted to form molten glass. Thereafter, the molten glass is transferred into the clear tank 300. The bubbles in the molten glass are removed in the clear channel 300. Thereafter, the molten glass is transferred to the forming apparatus 101.
於圖2及圖3中，表示成形裝置101之概略構成。圖2係成形裝置101之剖面圖。圖3係成形裝置101之側視圖。如圖2、圖3及圖6所示，成形裝置101主要由成形體10、上下環境分隔構件20、20、冷卻輥30、30、…、冷卻調整單元40a~40f、包圍構件70a、70b、70c、…、隔熱構件71、71、…、下拉輥60、60、…、及控制裝置80構成。以下，詳細地對成形裝置101中所包含之各構成進行說明。2 and 3 show a schematic configuration of the molding apparatus 101. 2 is a cross-sectional view of the forming apparatus 101. 3 is a side view of the forming apparatus 101. As shown in FIGS. 2, 3, and 6, the molding apparatus 101 mainly includes a molded body 10, upper and lower environmental partition members 20, 20, cooling rolls 30, 30, ..., cooling adjustment units 40a to 40f, surrounding members 70a, 70b, 70c, ..., heat insulating members 71, 71, ..., pull-down rolls 60, 60, ..., and control device 80 are constructed. Hereinafter, each configuration included in the molding apparatus 101 will be described in detail.
(2)詳細構成(2) Detailed composition
(2-1)成形體(2-1) Shaped body
成形體10藉由使熔融玻璃90溢流而將熔融玻璃90成形為板狀之玻璃(玻璃板91)。成形體10具有流入口12(參照圖3)。經由熔解槽200及清澄槽300之熔融玻璃90自流入口12流入。In the molded body 10, the molten glass 90 is formed into a plate-shaped glass (glass plate 91) by overflowing the molten glass 90. The molded body 10 has an inflow port 12 (refer to FIG. 3). The molten glass 90 passing through the melting tank 200 and the clearing tank 300 flows in from the inflow port 12.
如圖2所示，成形體10具有剖面形狀為大致5邊形之形狀。大致5邊形之前端相當於成形體10之下端部。於成形體中，形成有槽11。槽11於成形體10之長度方向上延伸。具體而言，槽11自設置有流入口12之第1端部延伸至與第1端部對向之第2端部。槽11以如下方式形成：流入口12附近最深，且隨著接近第2端部逐漸變淺。自成形體10溢流之熔融玻璃90沿成形體10之兩側面而流下，並 於成形體10之下端部合流。As shown in Fig. 2, the molded body 10 has a shape in which the cross-sectional shape is substantially pentagon. The front end of the substantially pentagon corresponds to the lower end of the formed body 10. In the molded body, a groove 11 is formed. The groove 11 extends in the longitudinal direction of the formed body 10. Specifically, the groove 11 extends from the first end portion where the inflow port 12 is provided to the second end portion that faces the first end portion. The groove 11 is formed in such a manner that the vicinity of the inflow port 12 is the deepest and gradually becomes shallow as it approaches the second end portion. The molten glass 90 overflowing from the molded body 10 flows down along both sides of the formed body 10, and The lower ends of the formed body 10 merge.
(2-2)上下環境分隔構件(2-2) Upper and lower environmental partition members
上下環境分隔構件20、20配置於熔融玻璃90之合流點附近。又，如圖2所示，上下環境分隔構件20、20配置於玻璃板91之厚度方向兩側。上下環境分隔構件20、20係隔熱材料。即，上下環境分隔構件20、20藉由分隔熔融玻璃90之合流點之上側環境及下側環境，而阻斷熱自上下環境分隔構件20、20之上側向下側移動。The upper and lower environmental partition members 20 and 20 are disposed near the junction of the molten glass 90. Further, as shown in FIG. 2, the upper and lower environmental partition members 20 and 20 are disposed on both sides in the thickness direction of the glass plate 91. The upper and lower environmental partition members 20 and 20 are heat insulating materials. In other words, the upper and lower environment partition members 20 and 20 block the heat from the upper side of the upper and lower environment partition members 20 and 20 to the lower side by partitioning the upper side environment and the lower side environment of the joining point of the molten glass 90.
(2-3)冷卻輥(2-3) Cooling roller
冷卻輥30、30、…與於成形體10之下端部合流而呈板狀之熔融玻璃90(玻璃板91)接觸，且為了對玻璃進行冷卻而設置。The cooling rolls 30, 30, ... are in contact with the molten glass 90 (glass plate 91) which is formed in a plate shape at the lower end of the molded body 10, and is provided in order to cool the glass.
(2-4)冷卻調整單元(2-4) Cooling adjustment unit
冷卻調整單元40a~40f係對玻璃板91之冷卻速度進行調整之單元。於本實施形態中，設置有6個冷卻調整單元40a~40f。如圖2及圖3所示，冷卻調整單元40a~40f配置於上下環境分隔構件20、20之下方。又，冷卻調整單元40a~40f沿玻璃板91之流下方向而並列配置。複數個冷卻調整單元40a~40f係無間隙地並列。各冷卻調整單元40a~40f呈可獨立地受到控制之構成。於本實施形態中，冷卻調整單元40a~40f分別以沿玻璃板91之流下方向而可階段性地對玻璃板91進行冷卻之方式受到控制。The cooling adjustment units 40a to 40f are units for adjusting the cooling rate of the glass plate 91. In the present embodiment, six cooling adjustment units 40a to 40f are provided. As shown in FIGS. 2 and 3, the cooling adjustment units 40a to 40f are disposed below the upper and lower environmental partition members 20 and 20. Further, the cooling adjustment units 40a to 40f are arranged side by side in the downward direction of the glass sheet 91. The plurality of cooling adjustment units 40a to 40f are juxtaposed without a gap. Each of the cooling adjustment units 40a to 40f is configured to be independently controllable. In the present embodiment, the cooling adjustment units 40a to 40f are controlled such that the glass sheet 91 can be cooled stepwise in the direction in which the glass sheet 91 flows downward.
於冷卻調整單元40a中，包含冷卻調整板41a、及對冷卻調整板41a之溫度進行控制之溫度控制單元50a(參照圖 6)。相同地，於冷卻調整單元40b中，包含冷卻調整板41b、及對冷卻調整板41b之溫度進行控制之溫度控制單元，於冷卻調整單元40c中，包含冷卻調整板41c、及對冷卻調整板41c之溫度進行控制之溫度控制單元。對於其他冷卻調整單元40d-40f亦相同。對於對冷卻調整板41b、41c之溫度進行控制之溫度控制單元，僅圖示有溫度控制單元所包含之管51b、51c(參照圖5)。再者，所有冷卻調整單元40a~40f之構成均相同。因此，以下舉冷卻調整單元40a為例，對冷卻調整單元40a所包含之冷卻調整板41a、及溫度控制單元50a進行說明。冷卻調整單元40a於6個冷卻調整單元40a~40f中，相對於玻璃板91之流下方向而配置於最上游。The cooling adjustment unit 40a includes a cooling adjustment plate 41a and a temperature control unit 50a that controls the temperature of the cooling adjustment plate 41a (refer to the figure). 6). Similarly, the cooling adjustment unit 40b includes a cooling adjustment plate 41b and a temperature control unit that controls the temperature of the cooling adjustment plate 41b. The cooling adjustment unit 40c includes a cooling adjustment plate 41c and a pair of cooling adjustment plates 41c. The temperature control unit that controls the temperature. The same is true for the other cooling adjustment units 40d-40f. For the temperature control unit that controls the temperatures of the cooling adjustment plates 41b and 41c, only the tubes 51b and 51c (see FIG. 5) included in the temperature control unit are shown. Furthermore, the configurations of all the cooling adjustment units 40a to 40f are the same. Therefore, the cooling adjustment unit 40a will be described below as an example, and the cooling adjustment plate 41a and the temperature control unit 50a included in the cooling adjustment unit 40a will be described. The cooling adjustment unit 40a is disposed at the most upstream of the six cooling adjustment units 40a to 40f with respect to the downward flow direction of the glass sheet 91.
(2-4-1)冷卻調整板(2-4-1) Cooling adjustment plate
冷卻調整板41a係配置於玻璃板91之表面附近，且對玻璃板91之冷卻速度進行調整之構件。冷卻調整板41a於與熔融玻璃90(玻璃板91)之流動方向交叉之方向(即水平方向)上延伸。冷卻調整板41a之長度方向之長度略短於玻璃板91之寬度方向之長度。於本實施形態中，冷卻調整板41a之長度方向之長度為1,500 mm。The cooling adjustment plate 41a is a member that is disposed in the vicinity of the surface of the glass plate 91 and that adjusts the cooling rate of the glass plate 91. The cooling adjustment plate 41a extends in a direction (ie, a horizontal direction) that intersects the flow direction of the molten glass 90 (glass plate 91). The length of the cooling adjustment plate 41a in the longitudinal direction is slightly shorter than the length of the glass plate 91 in the width direction. In the present embodiment, the length of the cooling adjustment plate 41a in the longitudinal direction is 1,500 mm.
冷卻調整板41a係實施了彎折加工之金屬構件。較佳為，金屬構件係於大氣中具有600℃以上之耐熱性之構件。又，較佳為，金屬構件具有至少30 W/m‧K以上之熱傳導率。如上所述，藉由使用熱傳導率較高之金屬構件，冷卻調整板41a之表面與背面之溫度差變小，表面之熱膨脹與背面之熱膨脹之差受到抑制，從而冷卻調整板41a之翹曲受到 抑制。又，由於熱傳導率較高，因此於產生冷卻調整板41a之各部分之溫度差之情形時，該溫度差亦迅速地得以緩和。進而，由於使用熱傳導率較高之金屬構件作為冷卻調整板41a，故玻璃板91之冷卻效率亦變高。對於金屬構件之放射率特性，為了確保較高之熱交換率，較佳為於使用溫度區域內為0.85以上。於本實施形態中，使用純鎳(熱傳導率：90.7 W/m‧K)作為金屬構件。The cooling adjustment plate 41a is a metal member that is subjected to bending processing. Preferably, the metal member is a member having heat resistance of 600 ° C or higher in the atmosphere. Further, it is preferable that the metal member has a thermal conductivity of at least 30 W/m‧K or more. As described above, by using a metal member having a high thermal conductivity, the temperature difference between the surface and the back surface of the cooling adjustment plate 41a becomes small, and the difference between the thermal expansion of the surface and the thermal expansion of the back surface is suppressed, so that the warpage of the cooling adjustment plate 41a is affected. inhibition. Further, since the thermal conductivity is high, the temperature difference is quickly alleviated when the temperature difference between the respective portions of the cooling adjustment plate 41a is generated. Further, since the metal member having a high thermal conductivity is used as the cooling adjustment plate 41a, the cooling efficiency of the glass plate 91 is also increased. In order to secure a high heat exchange rate, the emissivity characteristic of the metal member is preferably 0.85 or more in the use temperature region. In the present embodiment, pure nickel (thermal conductivity: 90.7 W/m‧K) was used as the metal member.
如圖4所示，冷卻調整板41a由彎折部42a、及主要部分43a構成。彎折部42a位於在水平方向上延伸之金屬構件之上下方，且係金屬構件之彎折部分。於水平方向上延伸之金屬構件中之除彎折部42a外之部分為主要部分43a。主要部分43a具有與玻璃板91對向之平坦之面(對向面)。具體而言，冷卻調整板41a為ㄈ字型鋼(槽形鋼)。As shown in Fig. 4, the cooling adjustment plate 41a is composed of a bent portion 42a and a main portion 43a. The bent portion 42a is located above and below the metal member extending in the horizontal direction, and is a bent portion of the metal member. The portion of the metal member extending in the horizontal direction other than the bent portion 42a is the main portion 43a. The main portion 43a has a flat surface (opposing surface) opposed to the glass plate 91. Specifically, the cooling adjustment plate 41a is a U-shaped steel (channel steel).
此處，為了獲得所需之冷卻速度而可適當變更主要部分43a之尺寸h。例如，根據玻璃之每單位寬度之流量而變更。又，較佳為，主要部分43a具有既定值以上之厚度t。具體而言，厚度t較佳為約4 mm以上。自熱容量之觀點而言，厚度t更佳為6 mm以上、進而較佳為8 mm以上。於使用該程度之厚度t之ㄈ字型鋼之情形時，冷卻調整板41a之熱容量充分變大，從而溫度差變小而玻璃板91之溫度分佈之均勻性更提高。又，彎折部42a之尺寸w為約20 mm~約50 mm。再者，冷卻調整板41a與鄰接之冷卻調整板41b螺固(參照圖5)。具體而言，冷卻調整板41a之彎折部42a與冷卻調整板41b之彎折部42b螺固而連結。因此， 彎折部42a只要基本上具有可螺固之程度之尺寸即可。然而，彎折部42a亦有助於增大冷卻調整板41a之斷面二次矩，故彎折部42a過短之情形不佳。Here, the size h of the main portion 43a can be appropriately changed in order to obtain a desired cooling rate. For example, it is changed according to the flow rate per unit width of the glass. Further, it is preferable that the main portion 43a has a thickness t equal to or greater than a predetermined value. Specifically, the thickness t is preferably about 4 mm or more. The thickness t is more preferably 6 mm or more, and still more preferably 8 mm or more from the viewpoint of heat capacity. In the case of using the U-shaped steel having the thickness t of this degree, the heat capacity of the cooling adjustment plate 41a is sufficiently increased, so that the temperature difference is small and the uniformity of the temperature distribution of the glass plate 91 is further improved. Further, the size w of the bent portion 42a is from about 20 mm to about 50 mm. Further, the cooling adjustment plate 41a is screwed to the adjacent cooling adjustment plate 41b (see Fig. 5). Specifically, the bent portion 42a of the cooling adjustment plate 41a and the bent portion 42b of the cooling adjustment plate 41b are screwed and coupled. therefore, The bent portion 42a may have a size that is substantially sturable. However, the bent portion 42a also contributes to an increase in the second moment of the section of the cooling adjustment plate 41a, so that the bent portion 42a is too short.
(2-4-2)溫度控制單元(2-4-2) Temperature Control Unit
溫度控制單元50a對冷卻調整板41a之溫度進行調整。具體而言，溫度控制單元50a以沿玻璃板91之流下方向而階段性地冷卻玻璃板91之方式，對對應之冷卻調整板41a之溫度進行調整。The temperature control unit 50a adjusts the temperature of the cooling adjustment plate 41a. Specifically, the temperature control unit 50a adjusts the temperature of the corresponding cooling adjustment plate 41a so as to gradually cool the glass plate 91 in the downward direction of the glass plate 91.
溫度控制單元50a主要由管51a、熱敏電阻56(參照圖7)、及氣體控制單元57a構成。The temperature control unit 50a is mainly composed of a tube 51a, a thermistor 56 (see Fig. 7), and a gas control unit 57a.
a)管a) tube
管51a流通用以對冷卻調整板41a之整體進行冷卻或加熱之流體。此處，所謂於管內流通之流體係指氣體(例如空氣、或氮等惰性氣體)。於管51a中，包含主管52a、及副管531a、532a。The tube 51a flows a fluid for cooling or heating the entire cooling adjustment plate 41a. Here, the flow system that flows through the tube means a gas (for example, an inert gas such as air or nitrogen). The tube 51a includes a main tube 52a and sub tubes 531a and 532a.
如圖6所示，主管52a沿冷卻調整板41a之長度方向而配置。於主管52a上，均勻地形成有複數個吹出口521、521、521、…。具體而言，吹出口521、521、521、…形成於相對於主管52a之中心線C對稱之位置上。又，如圖5所示，吹出口521設置於與冷卻調整板41a之主要部分43a對向之位置上。即，自吹出口521吹出之氣體吹送至冷卻調整板41a之主要部分43a。更具體而言，自吹出口521吹出之氣體吹送至對向面之背面側。吹出口521根據距主管52a之側部之距離而分別具有既定之大小。即，吹出口521之大小 亦相對於主管52a之中心線C對稱。此處，於主管52a之側部，包含第1側部及第2側部。第1側部及第2側部以主管52a之長度方向之中心線C為基準，配置於對稱之位置上。又，所謂既定之大小係指自各吹出口521吹出之氣體之量變均勻之大小。具體而言，吹出口521之大小係形成吹出口521之位置越遠離側部則越大(參照圖7)。As shown in Fig. 6, the main pipe 52a is disposed along the longitudinal direction of the cooling adjustment plate 41a. On the main pipe 52a, a plurality of air outlets 521, 521, 521, ... are uniformly formed. Specifically, the air outlets 521, 521, 521, . . . are formed at positions symmetrical with respect to the center line C of the main pipe 52a. Moreover, as shown in FIG. 5, the air outlet 521 is provided in the position which opposes the main part 43a of the cooling adjustment board 41a. That is, the gas blown from the air outlet 521 is blown to the main portion 43a of the cooling adjustment plate 41a. More specifically, the gas blown from the air outlet 521 is blown to the back side of the opposing surface. The air outlets 521 each have a predetermined size in accordance with the distance from the side of the main pipe 52a. That is, the size of the outlet 521 It is also symmetrical with respect to the center line C of the main pipe 52a. Here, the side portion of the main pipe 52a includes a first side portion and a second side portion. The first side portion and the second side portion are disposed at symmetrical positions with respect to the center line C in the longitudinal direction of the main pipe 52a. Further, the predetermined size means that the amount of gas blown from each of the air outlets 521 becomes uniform. Specifically, the size of the air outlet 521 is larger as the position where the air outlet 521 is formed is further away from the side portion (see FIG. 7).
副管531a、532a係向主管52a傳送成為熱交換之介質之氣體之管。副管531a、532a分別連接於主管52a之兩側部(第1側部及第2側部)。具體而言，於主管52a之第1側部，連接有第1副管531a，於主管52a之第2側部，連接有第2副管532a。如圖6所示，第1副管531a及第2副管532a與氣體供給單元54連接。自氣體供給單元54傳送至第1副管531a及第2副管532a之氣體之量係藉由氣體供給閥55而調整。The sub-pipes 531a and 532a are pipes for conveying the gas which is the medium of heat exchange to the main pipe 52a. The sub-pipes 531a and 532a are respectively connected to both side portions (the first side portion and the second side portion) of the main pipe 52a. Specifically, the first sub-pipe 531a is connected to the first side of the main pipe 52a, and the second sub-pipe 532a is connected to the second side of the main pipe 52a. As shown in FIG. 6, the first sub-tube 531a and the second sub-tube 532a are connected to the gas supply unit 54. The amount of gas sent from the gas supply unit 54 to the first sub-pipe 531a and the second sub-pipe 532a is adjusted by the gas supply valve 55.
b)熱敏電阻b) Thermistor
熱敏電阻56測定冷卻調整板41a之溫度。熱敏電阻56於冷卻調整板41a之長度方向上安裝有複數個。藉由熱敏電阻56而測定之冷卻調整板41a之溫度傳送至下文將述之控制裝置80。The thermistor 56 measures the temperature of the cooling adjustment plate 41a. The thermistor 56 is mounted in plural in the longitudinal direction of the cooling adjustment plate 41a. The temperature of the cooling adjustment plate 41a measured by the thermistor 56 is transmitted to the control device 80 which will be described later.
c)氣體控制單元c) gas control unit
氣體控制單元57a係對吹送至冷卻調整板41a之氣體之流動進行控制之單元。具體而言，氣體控制單元57a以如下方式進行控制：吹送至冷卻調整板41a之氣體不會於冷卻調整板41a之長度方向上流動。更具體而言，如圖6所示，氣 體控制單元57a以如下方式對氣體之流動進行控制：自主管52a之吹出口521吹出之氣體於吹送至冷卻調整板41a之後且沿冷卻調整板41a之長度方向流動之前，向與吹出方向d1正相反之方向d2流動。氣體控制單元57a以如下方式構成：藉由以將自吹出口521吹出之氣體往方向d2流動之方式進行控制，自一吹出口521吹出之氣體不會對自另一吹出口521吹出之氣體之流動方向d1造成影響。於方向d2上流動之氣體向爐外釋放。The gas control unit 57a is a unit that controls the flow of the gas that is blown to the cooling adjustment plate 41a. Specifically, the gas control unit 57a is controlled such that the gas blown to the cooling adjustment plate 41a does not flow in the longitudinal direction of the cooling adjustment plate 41a. More specifically, as shown in Figure 6, gas The body control unit 57a controls the flow of the gas in such a manner that the gas blown from the air outlet 521 of the main pipe 52a is blown to the cooling adjustment plate 41a and flows in the longitudinal direction of the cooling adjustment plate 41a, and is directed to the blowing direction d1. The opposite direction d2 flows. The gas control unit 57a is configured to control the gas blown from the air outlet 521 to flow in the direction d2 so that the gas blown from one of the air outlets 521 does not blow the gas blown from the other air outlet 521. The flow direction d1 has an effect. The gas flowing in the direction d2 is released to the outside of the furnace.
(2-5)包圍構件(2-5) enclosing member
包圍構件70a、70b、70c、…係形成用以對冷卻調整板41a、41b、41c之溫度進行控制之空間72a、72b、72c、…之構件。包圍構件70a、70b、70c、…連接於冷卻調整板41a、41b、41c之彎折部42a、42b、42c。冷卻調整板41a、41b、41c、與連接於冷卻調整板41a、41b、41c之包圍構件70a、70b、70c、…形成包圍管51a、51b、51c、…之空間72a、72b、72c、…。The surrounding members 70a, 70b, 70c, ... form members for the spaces 72a, 72b, 72c, ... for controlling the temperatures of the cooling adjustment plates 41a, 41b, 41c. The surrounding members 70a, 70b, 70c, ... are connected to the bent portions 42a, 42b, 42c of the cooling adjustment plates 41a, 41b, 41c. The cooling adjustment plates 41a, 41b, 41c and the surrounding members 70a, 70b, 70c, ... connected to the cooling adjustment plates 41a, 41b, 41c form spaces 72a, 72b, 72c, ... which surround the pipes 51a, 51b, 51c, ....
具體而言，如圖5所示，於第1冷卻調整板41a連接有第1包圍構件70a、70a。藉由第1冷卻調整板41a與第1包圍構件70a、70a，形成包圍第1管51a之第1空間72a。藉由第1空間72a而調整第1冷卻調整板41a之溫度。Specifically, as shown in FIG. 5, the first surrounding members 70a and 70a are connected to the first cooling adjustment plate 41a. The first space 72a surrounding the first pipe 51a is formed by the first cooling adjustment plate 41a and the first surrounding members 70a and 70a. The temperature of the first cooling adjustment plate 41a is adjusted by the first space 72a.
又，於第2冷卻調整板41b連接有第2包圍構件70b、70b。藉由第2冷卻調整板41b與第2包圍構件70b、70b，形成包圍第2管51b之第2空間72b。藉由第2空間72b而調整第2冷卻調整板41b之溫度。Moreover, the second surrounding members 70b and 70b are connected to the second cooling adjustment plate 41b. The second space 72b surrounding the second tube 51b is formed by the second cooling adjustment plate 41b and the second surrounding members 70b and 70b. The temperature of the second cooling adjustment plate 41b is adjusted by the second space 72b.
進而，於第3冷卻調整板41c連接有第3包圍構件70c，藉由第3冷卻調整板41c與第3包圍構件70c，形成包圍第3管51c之第3空間72c。藉由第3空間72c而調整第3冷卻調整板41c之溫度。Further, the third surrounding member 70c is connected to the third cooling adjustment plate 41c, and the third space 72c surrounding the third pipe 51c is formed by the third cooling adjustment plate 41c and the third surrounding member 70c. The temperature of the third cooling adjustment plate 41c is adjusted by the third space 72c.
再者，包圍構件70a、70b、70c、…之作用亦可由下述隔熱構件71、71、…來實現，故包圍構件70a、70b、70c、…亦可為隔熱板，且亦可使下述隔熱構件71、71、…兼用為包圍構件之作用。Furthermore, the functions of the surrounding members 70a, 70b, 70c, ... can also be realized by the following heat insulating members 71, 71, ..., so that the surrounding members 70a, 70b, 70c, ... can also be heat insulating panels, and can also The following heat insulating members 71, 71, ... are also used as the surrounding members.
(2-6)隔熱構件(2-6) Insulation member
隔熱構件71、71、…係阻斷鄰接之空間72a、72b、72c之熱之移動的構件。具體而言，隔熱構件71、71、…配置於形成鄰接之空間72a、72b、72c之包圍構件70a、70b、70c、…之間。更具體而言，如圖5所示，隔熱構件71配置於形成第1空間72a之第1包圍構件70a、與形成鄰接於第1空間72a之第2空間72b之第2包圍構件70b之間，阻斷第1空間72a與第2空間72b之間之熱之移動。又，隔熱構件71配置於形成第2空間72b之第2包圍構件70b、與形成鄰接於第2空間72b之第3空間72c之第3包圍構件70c之間，阻斷第2空間72b與第3空間72c之間之熱之移動。The heat insulating members 71, 71, ... are members that block the movement of heat of the adjacent spaces 72a, 72b, 72c. Specifically, the heat insulating members 71, 71, ... are disposed between the surrounding members 70a, 70b, 70c, ... forming the adjacent spaces 72a, 72b, 72c. More specifically, as shown in FIG. 5, the heat insulating member 71 is disposed between the first surrounding member 70a forming the first space 72a and the second surrounding member 70b forming the second space 72b adjacent to the first space 72a. The movement of heat between the first space 72a and the second space 72b is blocked. Further, the heat insulating member 71 is disposed between the second surrounding member 70b forming the second space 72b and the third surrounding member 70c forming the third space 72c adjacent to the second space 72b, and blocks the second space 72b and the 3 The movement of heat between spaces 72c.
(2-7)下拉輥(2-7) pull-down roller
下拉輥60、60、…相對於冷卻調整單元40a~40f而配置於玻璃板91之流下方向下游，向下方下拉玻璃板91。下拉輥60、60、…配置於玻璃板91之厚度方向兩側(參照圖2)、及玻璃板91之寬度方向兩側(參照圖3)。The pull-down rollers 60, 60, ... are disposed downstream of the cooling direction of the glass sheet 91 with respect to the cooling adjustment units 40a to 40f, and the glass plate 91 is pulled downward. The pull-down rolls 60, 60, ... are disposed on both sides in the thickness direction of the glass sheet 91 (see FIG. 2) and on both sides in the width direction of the glass sheet 91 (see FIG. 3).
下拉輥60、60、…藉由馬達(未圖示)而驅動。又，下拉輥60、60、…相對於玻璃板91向內側旋轉。藉此，二對下拉輥60、60、…向下方下拉玻璃板91。The pull-down rollers 60, 60, ... are driven by a motor (not shown). Further, the pull-down rollers 60, 60, ... rotate inward with respect to the glass sheet 91. Thereby, the two pair of pull-down rolls 60, 60, ... pull the glass plate 91 downward.
(2-8)控制裝置(2-8) Control device
控制裝置80由CPU、RAM、ROM、及硬碟等構成。如圖8所示，控制裝置80與冷卻輥30、30、下拉輥60、60、…、氣體控制單元57a、氣體供給單元54、氣體供給閥55、及熱敏電阻56等連接。The control device 80 is composed of a CPU, a RAM, a ROM, a hard disk, and the like. As shown in Fig. 8, the control device 80 is connected to the cooling rolls 30, 30, the pull-down rolls 60, 60, ..., the gas control unit 57a, the gas supply unit 54, the gas supply valve 55, the thermistor 56, and the like.
控制裝置80對冷卻輥30、下拉輥60、氣體控制單元57a、及氣體供給單元54之驅動部進行控制。又，控制裝置80對氣體供給閥55之開閉或開度進行控制。又，控制裝置80獲取藉由熱敏電阻56而測量之溫度並儲存。進而，控制裝置80基於藉由熱敏電阻56而測量之溫度，對氣體之供給量進行調整。The control device 80 controls the driving portions of the cooling roller 30, the pull-down roller 60, the gas control unit 57a, and the gas supply unit 54. Moreover, the control device 80 controls the opening and closing or opening degree of the gas supply valve 55. Further, the control device 80 acquires the temperature measured by the thermistor 56 and stores it. Further, the control device 80 adjusts the supply amount of the gas based on the temperature measured by the thermistor 56.
(3)整體動作(3) overall action
自成形體10溢流之熔融玻璃90沿成形體10之兩側面流下，在成形體10之下端部合流。於成形體10之下端部合流之熔融玻璃90在其後成為板狀(玻璃板91)而進一步流下。玻璃板91藉由冷卻輥30夾持寬度方向兩端部，從而兩端部被冷卻。又，除玻璃板91之寬度方向兩端部外之部分藉由複數個冷卻調整單元40a~40f，沿流下方向階段性地調整冷卻速度。具體而言，以如下方式進行控制：藉由第1冷卻調整板41a、及與該第1冷卻調整板41a對應之第1溫度控制單元50a，而玻璃板91之寬度方向之溫度變 為固定。其後，玻璃板91藉由與第1冷卻調整板41a並列配置之第2冷卻調整板41b、及與第2冷卻調整板41b對應之第2溫度控制單元50b而進一步受到冷卻。此時，第2溫度控制單元50b亦又以如下方式控制：使第2冷卻調整板41b之長度方向之溫度變為固定，並使玻璃板91之寬度方向之溫度變均勻。如上所述，複數個冷卻調整單元40a~40f一面使玻璃板91之寬度方向之溫度變均勻，一面沿玻璃板91之流下方向階段性地冷卻玻璃板91。其後，玻璃板91藉由下拉輥60而進一步向下方下拉，其後以既定之長度為單位進行切斷。The molten glass 90 overflowing from the molded body 10 flows down along both side faces of the molded body 10, and merges at the lower end portions of the molded body 10. The molten glass 90 joined to the lower end portion of the molded body 10 is further formed into a plate shape (glass plate 91) and then flows down. The glass plate 91 is sandwiched between the both end portions in the width direction by the cooling roller 30, so that both end portions are cooled. Moreover, the cooling rate is adjusted stepwise in the downflow direction by a plurality of cooling adjustment units 40a to 40f except for the both end portions in the width direction of the glass sheet 91. Specifically, the temperature is changed in the width direction of the glass plate 91 by the first cooling adjustment plate 41a and the first temperature control unit 50a corresponding to the first cooling adjustment plate 41a. For fixing. Thereafter, the glass plate 91 is further cooled by the second cooling adjustment plate 41b arranged in parallel with the first cooling adjustment plate 41a and the second temperature control unit 50b corresponding to the second cooling adjustment plate 41b. At this time, the second temperature control unit 50b is controlled such that the temperature in the longitudinal direction of the second cooling adjustment plate 41b is fixed, and the temperature in the width direction of the glass plate 91 is made uniform. As described above, the plurality of cooling adjustment units 40a to 40f gradually reduce the temperature in the width direction of the glass sheet 91, and gradually cool the glass sheet 91 in the downward direction of the glass sheet 91. Thereafter, the glass plate 91 is further pulled downward by the pull-down roller 60, and thereafter cut in units of a predetermined length.
(4)特徵(4) Features
(4-1)(4-1)
於上述實施形態之玻璃板製造裝置100中，在成形裝置101中，複數個冷卻調整單元40a~40f沿玻璃板91(熔融玻璃90)之流下方向並列配置。冷卻調整單元40a~40f中所包含之冷卻調整板41a、41b、41c、…之溫度藉由對應之溫度控制單元50a、…而調整。即，於玻璃板製造裝置100中，玻璃板91之上下方向(長度方向)之冷卻速度之控制的自由度得到提高。In the glass sheet manufacturing apparatus 100 of the above-described embodiment, in the molding apparatus 101, a plurality of cooling adjustment units 40a to 40f are arranged side by side in the flow direction of the glass sheet 91 (melting glass 90). The temperatures of the cooling adjustment plates 41a, 41b, 41c, ... included in the cooling adjustment units 40a to 40f are adjusted by the corresponding temperature control units 50a, .... In other words, in the glass sheet manufacturing apparatus 100, the degree of freedom in controlling the cooling rate of the glass sheet 91 in the vertical direction (longitudinal direction) is improved.
於先前之玻璃板製造裝置中，藉由在玻璃板之附近配置板狀構件，防止因於爐內產生之對流而玻璃板之冷卻變得不均勻之情形，但不具有可於玻璃板之下拉方向上任意地調整板狀構件之溫度之機構。伴隨玻璃基板之需求增加，期待控制玻璃板之冷卻速度並提高玻璃板之生產量， 但於先前之玻璃板製造裝置中，為了確保伴隨生產量增大之所需冷卻量，無法實現無裝置整體之玻璃板向下拉方向之大型化而充分地提高生產量。In the prior glass plate manufacturing apparatus, by disposing a plate-shaped member in the vicinity of the glass plate, the cooling of the glass plate due to convection generated in the furnace is prevented from becoming uneven, but the glass plate is not pulled down. A mechanism for arbitrarily adjusting the temperature of the plate member in the direction. With the increasing demand for glass substrates, it is expected to control the cooling rate of the glass sheets and increase the production of glass sheets. However, in the conventional glass sheet manufacturing apparatus, in order to secure the required amount of cooling accompanying an increase in the amount of production, it is not possible to increase the throughput of the entire glass sheet of the entire apparatus in the pull-down direction.
於上述實施形態之玻璃板製造裝置100中，在成形裝置101中，為了調整玻璃板91之冷卻速度而使用冷卻調整單元40a~40f。於冷卻調整單元40a~40f中，分別包含冷卻調整板41a、41b、41c、…及溫度控制單元50a、…，且藉由溫度控制單元50a、…對冷卻調整板41a、41b、41c、…之溫度進行調整，故可根據所需對玻璃板91之冷卻速度進行調整。藉此，可不使裝置整體大型化而於有限之空間中有效率地對冷卻速度進行控制，故可提高玻璃板91之生產量。In the glass sheet manufacturing apparatus 100 of the above-described embodiment, in the molding apparatus 101, the cooling adjustment units 40a to 40f are used to adjust the cooling rate of the glass sheet 91. The cooling adjustment units 40a to 40f respectively include cooling adjustment plates 41a, 41b, 41c, ... and temperature control units 50a, ..., and the cooling adjustment plates 41a, 41b, 41c, ... by the temperature control units 50a, ... The temperature is adjusted so that the cooling rate of the glass plate 91 can be adjusted as needed. Thereby, the cooling rate can be efficiently controlled in a limited space without increasing the size of the entire apparatus, so that the throughput of the glass sheet 91 can be increased.
(4-2)(4-2)
又，於上述實施形態之玻璃板製造裝置100中，在成形裝置101中使用複數個冷卻調整單元40a~40f。一冷卻調整單元40a中所包含之冷卻調整板41a於玻璃板91之寬度方向上延伸。而且，溫度控制單元50a進行冷卻調整板41a之整體之溫度控制。因此，能夠以均勻地保持玻璃板91之寬度方向上之溫度之狀態，沿玻璃板91之流下方向階段性地降低玻璃板91之溫度。藉此，可良好地保持玻璃板91之有效寬度內之平面度品質。Further, in the glass sheet manufacturing apparatus 100 of the above embodiment, a plurality of cooling adjustment units 40a to 40f are used in the molding apparatus 101. The cooling adjustment plate 41a included in the cooling adjustment unit 40a extends in the width direction of the glass plate 91. Further, the temperature control unit 50a performs temperature control of the entire cooling adjustment plate 41a. Therefore, the temperature of the glass plate 91 can be gradually lowered in the downward direction of the glass plate 91 in a state where the temperature in the width direction of the glass plate 91 is uniformly maintained. Thereby, the flatness quality within the effective width of the glass plate 91 can be favorably maintained.
(4-3)(4-3)
於上述實施形態之玻璃板製造裝置100中，在上下環境分隔構件20、20之下方設置有複數個冷卻調整單元40a ~40f。上下環境分隔構件20、20之下方成為藉由上下環境分隔構件20、20而阻斷成形體10之熱之空間。冷卻調整單元40a~40f於成形體10之熱被阻斷之空間內，對熔融玻璃90之冷卻速度進行控制。藉此，減少對在成形體上流動之熔融玻璃之溫度造成之影響，從而可高效地進行溫度控制。In the glass sheet manufacturing apparatus 100 of the above embodiment, a plurality of cooling adjustment units 40a are provided below the upper and lower environment partition members 20 and 20. ~40f. Below the upper and lower environmental partition members 20 and 20, a space for blocking the heat of the molded body 10 by the upper and lower environmental partition members 20 and 20 is formed. The cooling adjustment units 40a to 40f control the cooling rate of the molten glass 90 in the space in which the heat of the molded body 10 is blocked. Thereby, the influence on the temperature of the molten glass flowing on the formed body is reduced, and temperature control can be performed efficiently.
(4-4)(4-4)
於上述實施形態中，向冷卻調整板41a、41b、41c、…吹送氣體之主管52a、…與冷卻調整板41a、41b、41c、…相同地於水平方向上延伸。又，主管52a、…具有與冷卻調整板41a、41b、41c、…對向且空開既定之距離間隔而設置之吹出口。吹出口根據距連結有副管之側部之位置而設定大小。冷卻調整板41a、41b、41c之溫度藉由自吹出口吹送之氣體而調整。藉此，能夠以使冷卻調整板41a、41b、41c、…之寬度方向上之溫度接近均勻之方式進行溫度控制。In the above embodiment, the main pipes 52a, ... which blow the gas to the cooling adjustment plates 41a, 41b, 41c, ... are extended in the horizontal direction in the same manner as the cooling adjustment plates 41a, 41b, 41c, .... Further, the main pipes 52a, ... have air outlets which are provided to face the cooling adjustment plates 41a, 41b, 41c, ... and are spaced apart by a predetermined distance. The air outlet is set in size according to the position from the side where the auxiliary pipe is connected. The temperatures of the cooling adjustment plates 41a, 41b, and 41c are adjusted by the gas blown from the air outlet. Thereby, the temperature control can be performed so that the temperature in the width direction of the cooling adjustment plates 41a, 41b, 41c, ... is nearly uniform.
(4-5)(4-5)
又，於上述實施形態中，主管52a具有之吹出口521根據距側部之距離，以寬度方向上之中心線C為對稱軸具有不同之大小。藉由迴路配管而自兩側部供給相等之壓力之冷卻氣體，故側部(氣體自副管向主管之供給位置)至吹出口521為止之距離越遠，壓力損耗越大。即，吹出口521之位置距側部越遠，自吹出口521吹出之氣體之壓力越下降，從而難以於所有吹出口521確保充分之流量。因此，於上述實施形態中，根據距側部之距離而變更各吹出口之 大小(開口面積)。具體而言，越遠離側部，吹出口521之開口面積越大。又，吹出口521形成於相對於中心線C成為對稱之位置上。其結果，以冷卻調整板41a之長度方向上之溫度變均勻之方式，氣體自主管52a吹出。藉此，各個冷卻調整板41a、41b、41c、…於寬度方向上大致保持為均勻之溫度，從而可製造較佳之平面度之玻璃板91。Further, in the above embodiment, the air outlet 521 of the main pipe 52a has a different size depending on the distance from the side portion, and the center line C in the width direction is the axis of symmetry. Since the cooling gas of equal pressure is supplied from both sides by the circuit piping, the farther the distance from the side (the supply position of the gas from the auxiliary pipe to the main pipe) to the air outlet 521, the larger the pressure loss. That is, the farther the position of the air outlet 521 is from the side portion, the lower the pressure of the gas blown from the air outlet 521 is, and it is difficult to ensure a sufficient flow rate for all the air outlets 521. Therefore, in the above embodiment, the respective outlets are changed in accordance with the distance from the side portion. Size (opening area). Specifically, the farther away from the side portion, the larger the opening area of the air outlet 521. Further, the air outlet 521 is formed at a position symmetrical with respect to the center line C. As a result, the gas is blown from the main pipe 52a so that the temperature in the longitudinal direction of the cooling adjustment plate 41a becomes uniform. Thereby, each of the cooling adjustment plates 41a, 41b, 41c, ... is maintained at a uniform temperature in the width direction, whereby a glass plate 91 having a better flatness can be manufactured.
(4-6)(4-6)
進而，於上述實施形態中，冷卻調整板41a、41b、41c、…為ㄈ字型鋼。即，冷卻調整板41a係具有彎折部42a及主要部分43a，彎折部42a係於水平方向上延伸之金屬構件之上下彎折之部分，主要部分43a係於水平方向上延伸之金屬構件中之除彎折部42a外之部分，係與玻璃板91對向之平坦之面。因此，冷卻調整板41a、41b、…藉由採用該彎折構造，而相對於平面方向之彎曲應力之斷面二次矩變大，故可抑制因主要部分43a之表面與背面之溫度差產生之變形。即，可抑制冷卻調整板41a、41b、…之彎曲，從而防止玻璃板(玻璃帶)91與冷卻調整板41a、41b、…之距離尤其於玻璃板之下拉方向上根據部位而大幅不同之情形。藉此，可抑制玻璃帶之冷卻過程中之平面度之惡化。Further, in the above embodiment, the cooling adjustment plates 41a, 41b, 41c, ... are U-shaped steel. That is, the cooling adjustment plate 41a has a bent portion 42a which is a portion bent upward and downward of the metal member extending in the horizontal direction, and a main portion 43a which is attached to the metal member extending in the horizontal direction. The portion other than the bent portion 42a is a flat surface opposite to the glass plate 91. Therefore, by using the bent structure, the cooling adjustment plates 41a, 41b, ... have a larger secondary moment of the bending stress with respect to the plane direction, so that the temperature difference between the surface and the back surface of the main portion 43a can be suppressed. The deformation. That is, it is possible to suppress the bending of the cooling adjustment plates 41a, 41b, ..., thereby preventing the distance between the glass plate (glass ribbon) 91 and the cooling adjustment plates 41a, 41b, ... from being particularly different depending on the portion in the downward pulling direction of the glass plate. . Thereby, the deterioration of the flatness during the cooling of the glass ribbon can be suppressed.
又，於上述實施形態中，冷卻調整板41a之主要部分43a具有約4 mm以上之厚度t。藉此，於在與冷卻調整板41a之玻璃對向側相反之表面寬度方向上產生溫度不均之情形時，藉由冷卻調整板41a內部之熱傳導而玻璃對向面之溫度差得以緩和，從而可抑制對玻璃板91之溫度控製造成 之影響。又，於流入冷卻調整板間之玻璃板91在寬度方向上原本已具有溫度不均之情形時，若冷卻調整板之面內溫度均勻性較高，則伴隨與調整板之熱交換，玻璃板91所具有之溫度不均得以緩和。Further, in the above embodiment, the main portion 43a of the cooling adjustment plate 41a has a thickness t of about 4 mm or more. Thereby, when temperature unevenness occurs in the surface width direction opposite to the opposite side of the glass of the cooling adjustment plate 41a, the temperature difference between the glass opposing faces is alleviated by cooling the heat conduction inside the adjustment plate 41a, thereby Can suppress the temperature control of the glass plate 91 The impact. Further, when the glass sheet 91 flowing between the cooling adjustment plates has a temperature unevenness in the width direction, if the in-plane temperature uniformity of the cooling adjustment plate is high, the glass plate is accompanied by heat exchange with the adjustment plate. The temperature unevenness of 91 is alleviated.
(4-7)(4-7)
又，於上述實施形態中，呈如下構成：藉由使用包圍構件70a、70b、70c、…、及隔熱構件71、71、…，一冷卻調整單元40a難以對鄰接之冷卻調整單元40b造成影響。具體而言，於第1冷卻調整單元40a之冷卻調整板(第1冷卻調整板)41a上所連接之包圍構件70a、與第2冷卻調整單元40b之冷卻調整板(第2冷卻調整板)41b上所連接之包圍構件70b之間，配置有隔熱構件71，故用以對第1冷卻調整板41a之溫度進行調整之第1空間72a、與用以對第2冷卻調整板41b之溫度進行調整之第2空間72b之間之熱的移動受到阻斷。Further, in the above-described embodiment, it is difficult to affect the adjacent cooling adjustment unit 40b by using the surrounding members 70a, 70b, 70c, ..., and the heat insulating members 71, 71, ..., one cooling adjustment unit 40a. . Specifically, the enclosing member 70a connected to the cooling adjustment plate (first cooling adjustment plate) 41a of the first cooling adjustment unit 40a and the cooling adjustment plate (second cooling adjustment plate) 41b of the second cooling adjustment unit 40b are provided. Since the heat insulating member 71 is disposed between the upper surrounding members 70b, the first space 72a for adjusting the temperature of the first cooling adjustment plate 41a and the temperature for the second cooling adjustment plate 41b are used. The movement of heat between the adjusted second spaces 72b is blocked.
藉此，可減少一冷卻調整單元40a對鄰接之冷卻調整單元40b造成之影響。Thereby, the influence of the one cooling adjustment unit 40a on the adjacent cooling adjustment unit 40b can be reduced.
(4-8)(4-8)
進而，於上述實施形態中，藉由氣體控制單元57a而控制向冷卻調整板41a吹送後之氣體之流動。氣體控制單元57a向與自管向冷卻調整板41a之氣體之吹出方向d1正好相反之方向d2流通。藉此，可減少自一吹出口521吹出之氣體對自另一吹出口521吹出之氣體之流動方向d1造成之影響。Further, in the above embodiment, the flow of the gas blown to the cooling adjustment plate 41a is controlled by the gas control unit 57a. The gas control unit 57a flows in a direction d2 that is opposite to the direction in which the gas is blown from the tube to the cooling adjustment plate 41a. Thereby, the influence of the gas blown from one blower outlet 521 on the flow direction d1 of the gas blown from the other blower outlet 521 can be reduced.
(5)變形例(5) Modifications
(5-1)變形例A(5-1) Modification A
於上述實施形態中，對使用熔融法製造玻璃板91之情形之例進行了說明，但使用複數個冷卻調整單元40a~40f之構成亦可於使用流孔下引法製造玻璃板91之情形時採用。In the above embodiment, an example in which the glass sheet 91 is produced by the melt method has been described. However, the configuration in which the plurality of cooling adjustment units 40a to 40f are used may be used in the case where the glass sheet 91 is produced by the downhole method. use.
(5-2)變形例B(5-2) Modification B
於上述實施形態中，採用純鎳作為熱傳導率較高之材料，但亦可使用其他材料作為熱傳導率較高之材料。例如，亦可為鉬、燒結SiC、再結晶SiC、人造石墨、鐵、鎢等。然而，於採用鉬之情形時，較佳為於非氧化環境下使用。又，於在氧化環境下使用鉬之情形時，較佳為實施耐氧化塗敷。又，燒結SiC可於氧化環境下採用，人造石墨、鐵、及鎢可於在非氧化環境下使用之情形時採用。又，較理想的是，為了促進冷卻調整板與玻璃板之因熱輻射所引起之熱交換，於使用放射率並不高之材料之情形時，將於其耐熱性之構件表面塗佈有提高放射率之材料者用作冷卻調整板41a、41b、41c、…。In the above embodiment, pure nickel is used as the material having a high thermal conductivity, but other materials may be used as the material having a high thermal conductivity. For example, it may be molybdenum, sintered SiC, recrystallized SiC, artificial graphite, iron, tungsten or the like. However, in the case of using molybdenum, it is preferably used in a non-oxidizing environment. Further, in the case where molybdenum is used in an oxidizing atmosphere, it is preferred to carry out oxidation resistant coating. Further, sintered SiC can be used in an oxidizing environment, and artificial graphite, iron, and tungsten can be used in a non-oxidizing environment. Further, it is preferable that in order to promote heat exchange between the cooling adjustment plate and the glass plate due to heat radiation, when a material having a low emissivity is used, the surface of the member having heat resistance is coated and improved. The material of the emissivity is used as the cooling adjustment plates 41a, 41b, 41c, .
(5-3)變形例C(5-3) Modification C
於上述實施形態中，使用ㄈ字型鋼(槽形鋼形狀)作為冷卻調整板41a、41b、41c、…，但冷卻調整板41a、41b、41c、…並不限定於上述形狀，亦可為其他形狀。此時，較佳為設為如下之構成：將鄰接之冷卻調整板41a、41b間之接觸設為最小限，抑制鄰接之冷卻調整板41a、41b間之熱 傳導。例如，冷卻調整板41a、41b、41c、…亦可為圓桿(圓柱)形狀、或奇數之多邊柱形狀等。In the above embodiment, the U-shaped steel (the shape of the channel steel) is used as the cooling adjustment plates 41a, 41b, 41c, ..., but the cooling adjustment plates 41a, 41b, 41c, ... are not limited to the above-described shapes, and may be other shape. In this case, it is preferable to set the contact between the adjacent cooling adjustment plates 41a and 41b to the minimum, and to suppress the heat between the adjacent cooling adjustment plates 41a and 41b. Conduction. For example, the cooling adjustment plates 41a, 41b, 41c, ... may be in the shape of a round rod (cylindrical shape) or an odd polygonal column shape or the like.
(5-4)變形例D(5-4) Modification D
於上述實施形態中，在主管52a上均勻地形成有複數個吹出口521，但該複數個吹出口521亦能夠以基於距側部之距離及吹出口521之大小之距離間隔而形成。In the above embodiment, a plurality of air outlets 521 are uniformly formed in the main pipe 52a. However, the plurality of air outlets 521 can be formed at intervals based on the distance from the side portions and the size of the air outlets 521.
(5-5)變形例E(5-5) Modification E
於上述實施形態中，作為製造G5尺寸之玻璃基板所用之玻璃板91時之例，例示有冷卻調整板41a、41b、41c、…之長度方向上之長度、或冷卻調整單元40a~40f之數量(6個)，但亦可根據製造之玻璃板91之大小，調整長度方向之長度或冷卻調整單元之數量。In the above embodiment, the length of the cooling adjustment plates 41a, 41b, 41c, ..., or the number of the cooling adjustment units 40a to 40f is exemplified as an example of the glass plate 91 used for the glass substrate of the G5 size. (6), but the length in the longitudinal direction or the number of cooling adjustment units may be adjusted according to the size of the manufactured glass plate 91.
(5-6)變形例F(5-6) Modification F
又，較理想的是，於上述實施形態中，冷卻調整板41a之主要部分43a於寬度方向上保持較高之直線度，但於高度方向上亦可為凸凹。藉此，可抑制沿玻璃板91產生之上升氣流之流動，從而抑制因部位引起之冷卻速度差之產生。Further, in the above embodiment, the main portion 43a of the cooling adjustment plate 41a is kept at a high straightness in the width direction, but may be convex or concave in the height direction. Thereby, the flow of the ascending air current generated along the glass plate 91 can be suppressed, thereby suppressing the occurrence of a difference in cooling rate due to the portion.
(5-7)變形例G(5-7) Modification G
於上述實施形態之玻璃板製造裝置100中，亦可為一氣體供給單元54對一冷卻調整單元40a供給氣體之構成，又，亦可為一氣體供給單元54對複數個冷卻調整單元40a~40f供給氣體之構成。In the glass sheet manufacturing apparatus 100 of the above embodiment, a gas supply unit 54 may be configured to supply a gas to a cooling adjustment unit 40a, or may be a gas supply unit 54 to a plurality of cooling adjustment units 40a to 40f. The composition of the supply gas.
10‧‧‧成形體10‧‧‧Formed body
11‧‧‧槽11‧‧‧ slot
20‧‧‧上下環境分隔構件20‧‧‧Up and down environmental partitions
30‧‧‧冷卻輥30‧‧‧Cooling roller
40a~40f‧‧‧冷卻調整單元40a~40f‧‧‧Cooling adjustment unit
41a、41b、41c、…‧‧‧冷卻調整板41a, 41b, 41c, ...‧‧‧ cooling adjustment board
42a、42b、42c、…‧‧‧彎折部42a, 42b, 42c, ... ‧ ‧ bends
43a、43b、…‧‧‧主要部分43a, 43b, ...‧‧‧ main part
50a‧‧‧溫度控制單元50a‧‧‧temperature control unit
51a、51b、51c、…‧‧‧管51a, 51b, 51c, ... ‧ ‧ tube
52a‧‧‧主管52a‧‧ Director
55‧‧‧氣體供給閥55‧‧‧ gas supply valve
57a‧‧‧氣體控制單元57a‧‧‧Gas Control Unit
60‧‧‧下拉輥60‧‧‧ Pull-down roller
90‧‧‧熔融玻璃90‧‧‧Solid glass
91‧‧‧玻璃板91‧‧‧ glass plate
100‧‧‧玻璃板製造裝置100‧‧‧ glass plate manufacturing equipment
101‧‧‧成形裝置101‧‧‧Forming device
521‧‧‧吹出口521‧‧‧ blown out
531a、532a‧‧‧副管531a, 532a‧‧‧ Deputy
圖1係玻璃板製造裝置之概略構成圖。Fig. 1 is a schematic configuration diagram of a glass plate manufacturing apparatus.
圖2係成形裝置之概略構成圖(剖面圖)。Fig. 2 is a schematic configuration view (cross-sectional view) of the molding apparatus.
圖3係成形裝置之概略構成圖(側視圖)。Fig. 3 is a schematic configuration view (side view) of the molding apparatus.
圖4係表示冷卻調整板之圖。Fig. 4 is a view showing a cooling adjustment plate.
圖5係表示藉由冷卻調整板與包圍構件形成之空間之圖。Fig. 5 is a view showing a space formed by cooling the adjustment plate and the surrounding member.
圖6係表示自主管吹出之氣體、及吹出後之氣體之流動之圖。Fig. 6 is a view showing the flow of the gas blown from the main pipe and the gas after the blowing.
圖7係表示管之構成之圖。Fig. 7 is a view showing the constitution of a tube.
圖8係表示控制裝置及連接於控制裝置之各機構之圖。Fig. 8 is a view showing a control device and each mechanism connected to the control device.
10‧‧‧成形體10‧‧‧Formed body
11‧‧‧槽11‧‧‧ slot
20‧‧‧上下環境分隔構件20‧‧‧Up and down environmental partitions
30‧‧‧冷卻輥30‧‧‧Cooling roller
40a~40f‧‧‧冷卻調整單元40a~40f‧‧‧Cooling adjustment unit
60‧‧‧下拉輥60‧‧‧ Pull-down roller
90‧‧‧熔融玻璃90‧‧‧Solid glass
91‧‧‧玻璃板91‧‧‧ glass plate
101‧‧‧成形裝置101‧‧‧Forming device
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2010175707 | 2010-08-04 |
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| TW201332908A TW201332908A (en) | 2013-08-16 |
| TWI414493B true TWI414493B (en) | 2013-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW100127867A TWI403471B (en) | 2010-08-04 | 2011-08-04 | Glass plate making device and glass plate cooling method |
| TW102110645A TWI414493B (en) | 2010-08-04 | 2011-08-04 | Glass plate making device and glass plate cooling method |
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| TW100127867A TWI403471B (en) | 2010-08-04 | 2011-08-04 | Glass plate making device and glass plate cooling method |
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| JP (2) | JP5154700B2 (en) |
| KR (1) | KR101452609B1 (en) |
| CN (1) | CN203173971U (en) |
| TW (2) | TWI403471B (en) |
| WO (1) | WO2012018072A1 (en) |
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| JP5805602B2 (en) * | 2012-09-28 | 2015-11-04 | ＡｖａｎＳｔｒａｔｅ株式会社 | Manufacturing method of glass substrate and cooler |
| CN103922567B (en) * | 2014-04-01 | 2016-04-13 | 成都光明光电股份有限公司 | The manufacturing installation of sheet glass |
| CN107771165B (en) * | 2015-04-17 | 2020-12-01 | 康宁股份有限公司 | Thermally enhanced glass manufacturing apparatus and method |
| JP6597953B2 (en) * | 2015-04-30 | 2019-10-30 | 日本電気硝子株式会社 | Sheet glass manufacturing apparatus and sheet glass manufacturing method |
| JP5969671B2 (en) * | 2015-09-02 | 2016-08-17 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate manufacturing method and glass substrate manufacturing apparatus |
| KR20180086220A (en) * | 2015-11-19 | 2018-07-30 | 코닝 인코포레이티드 | Glass manufacturing apparatus having a cooling device and method of using the same |
| JP7045320B2 (en) * | 2016-04-05 | 2022-03-31 | コーニング インコーポレイテッド | Glass ribbon manufacturing method and equipment |
| CN108196387B (en) * | 2018-01-02 | 2021-03-30 | 重庆京东方光电科技有限公司 | Substrate base plate, manufacturing device and preparation method thereof and display device |
| CN112146351B (en) * | 2020-09-12 | 2021-11-02 | 广西开蒙医疗科技有限公司 | Electronic scale glass plate water-cooling circulating device |
| WO2024044152A1 (en) * | 2022-08-26 | 2024-02-29 | Corning Incorporated | Methods and apparatus for forming a glass ribbon |
| WO2024086041A1 (en) * | 2022-10-20 | 2024-04-25 | Corning Incorporated | Sheet glass thickness control apparatus |
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| JPH02149437A (en) * | 1988-11-30 | 1990-06-08 | Hoya Corp | Glass plate production device |
| JPH05124827A (en) * | 1991-10-31 | 1993-05-21 | Hoya Corp | Device for producing glass plate and production of glass plate |
| TW200940459A (en) * | 2008-01-21 | 2009-10-01 | Nippon Electric Glass Co | Process for producing glass substrate and glass substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3093000B2 (en) * | 1991-10-31 | 2000-09-25 | ホーヤ株式会社 | Glass plate manufacturing equipment |
| JP4027266B2 (en) * | 2003-05-23 | 2007-12-26 | Ｈｏｙａ株式会社 | Method for slowly cooling glass article, method for heating glass article, method for producing glass molded article, and heat treatment apparatus |
| US20060042314A1 (en) * | 2004-08-27 | 2006-03-02 | Abbott John S Iii | Noncontact glass sheet stabilization device used in fusion forming of a glass sheet |
| JP4821260B2 (en) * | 2005-10-20 | 2011-11-24 | 日本電気硝子株式会社 | Liquid crystal plate glass heating apparatus, liquid crystal plate glass furnace, and liquid crystal plate glass manufacturing method |
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2011
- 2011-08-04 JP JP2011542394A patent/JP5154700B2/en active Active
- 2011-08-04 WO PCT/JP2011/067845 patent/WO2012018072A1/en active Application Filing
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- 2011-08-04 TW TW102110645A patent/TWI414493B/en active
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Patent Citations (3)
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| JPH02149437A (en) * | 1988-11-30 | 1990-06-08 | Hoya Corp | Glass plate production device |
| JPH05124827A (en) * | 1991-10-31 | 1993-05-21 | Hoya Corp | Device for producing glass plate and production of glass plate |
| TW200940459A (en) * | 2008-01-21 | 2009-10-01 | Nippon Electric Glass Co | Process for producing glass substrate and glass substrate |
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| Publication number | Publication date |
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| TWI403471B (en) | 2013-08-01 |
| JP2013063902A (en) | 2013-04-11 |
| WO2012018072A1 (en) | 2012-02-09 |
| TW201332908A (en) | 2013-08-16 |
| TW201213247A (en) | 2012-04-01 |
| KR101452609B1 (en) | 2014-10-22 |
| JPWO2012018072A1 (en) | 2013-10-03 |
| CN203173971U (en) | 2013-09-04 |
| KR20120132688A (en) | 2012-12-07 |
| JP5154700B2 (en) | 2013-02-27 |
| JP5190558B2 (en) | 2013-04-24 |
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