WO2014091967A1 - フロートガラス製造装置、およびフロートガラス製造方法 - Google Patents

フロートガラス製造装置、およびフロートガラス製造方法 Download PDF

Info

Publication number
WO2014091967A1
WO2014091967A1 PCT/JP2013/082492 JP2013082492W WO2014091967A1 WO 2014091967 A1 WO2014091967 A1 WO 2014091967A1 JP 2013082492 W JP2013082492 W JP 2013082492W WO 2014091967 A1 WO2014091967 A1 WO 2014091967A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
float
cooling water
cooling
glass ribbon
Prior art date
Application number
PCT/JP2013/082492
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
誓也 田中
要介 稲井
Original Assignee
旭硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 旭硝子株式会社 filed Critical 旭硝子株式会社
Priority to CN201380064954.2A priority Critical patent/CN104837780A/zh
Priority to KR1020157015400A priority patent/KR102120201B1/ko
Priority to JP2014551992A priority patent/JPWO2014091967A1/ja
Publication of WO2014091967A1 publication Critical patent/WO2014091967A1/ja

Links

Images

Classifications

    • 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
    • C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
    • C03B18/06—Changing or regulating the dimensions of the molten glass ribbon using mechanical means, e.g. restrictor bars, edge rollers

Definitions

  • the present invention relates to a float glass manufacturing apparatus and a float glass manufacturing method.
  • a float method is known as one method for producing a glass plate.
  • a plate glass is roughly manufactured through the following steps.
  • the molten glass is introduced onto the surface of the molten tin accommodated in the float bath.
  • the molten glass is continuously conveyed from the upstream side to the downstream side to form a glass ribbon.
  • a sheet glass is produced by slowly cooling the glass ribbon and pulling it out of the float bath by roll conveyance.
  • an apparatus called a top roll controls the width and thickness of the glass ribbon of the molten glass that has flowed into the float bath and advances the glass ribbon to the upstream area of the float bath (the side on which the molten glass flows into the float bath).
  • a plurality of edge rolls arranged on both edge portions of the glass ribbon in the region (1).
  • the top roll is provided with a rotating member at the tip. Therefore, the rotating member is brought into contact with the surfaces of the edge portions on both sides of the glass ribbon, the glass ribbon is pressed and the rotating member is rotated, thereby suppressing the shrinkage of the glass ribbon and having a predetermined width and thickness. Can be transported.
  • shrinkage of the glass ribbon means shrinkage in the width direction of the glass ribbon.
  • the tip part of the top roll is in direct contact with the high temperature glass ribbon, the temperature may rise significantly during use in an uncooled state. For this reason, the top end portion of the top roll is usually cooled by circulating cooling water through a flow passage formed inside the top roll (for example, Patent Documents 1 and 2).
  • the top roll can be intermittently vibrated or an inert gas can be sprayed onto the top roll to prevent an increase in the amount of tin adhering to it. I can't get it. Further, since the adhesion between tin and the top roll becomes stronger with time, it is necessary to replace the top roll after a certain period of time, and there is a problem that productivity is impaired.
  • the temperature of the cooling water of the top roll fluctuates according to the fluctuation of the outside air temperature. That is, the temperature of the cooling water is high during the day and low at night. Therefore, depending on fluctuations in the outside air temperature, tin adhered to the top roll may fall on the glass ribbon or into the molten tin bath during production due to the difference in thermal expansion from the top roll surface.
  • the temperature fluctuation of the glass ribbon in contact with the top roll was caused by the temperature fluctuation of the cooling water of the top roll, the pressure for pressing the glass ribbon with the top roll was fluctuated, and the fluctuation of the glass ribbon width could not be suppressed.
  • the present invention has been made in view of such circumstances, and it is possible to suppress that the tin adhered to the surface of the top roll falls on the glass ribbon or in the molten tin bath during production, and the fluctuation of the plate width of the glass ribbon.
  • Another object of the present invention is to provide a float glass manufacturing apparatus and a float glass manufacturing method that suppress a concave bubble defect on the bottom surface of a glass ribbon.
  • the float glass manufacturing apparatus is characterized in that the fluctuation range of the temperature is controlled within 4 ° C. per day.
  • the fluctuation range is controlled within 3 ° C. per hour.
  • the cooling device includes a cooling tower of a water circulation system and a cooling fan whose rotation speed is controlled manually or by an inverter.
  • the upper limit temperature of the cooling water measured by the temperature measuring device is 40 ° C. or less.
  • the step of introducing the molten glass into the float bath, the step of transporting the molten glass from the upstream side to the downstream side of the float bath, forming a glass ribbon, and the top end portion of the top roll as the glass A step of suppressing shrinkage of the glass ribbon by rotating while pressing against the upper surfaces of both sides of a predetermined region in the ribbon traveling direction, wherein the top roll has a rotatable tip
  • the tip portion has a hollow structure having a tip portion space inside, and has a flow passage for supplying cooling water to the tip portion space, and the temperature of the cooling water is adjusted outside the float bath.
  • a temperature control means having cooling means for cooling the cooling water whose temperature has risen due to heat exchange in the float bath.
  • the fluctuation range is controlled within 3 ° C. per hour.
  • the cooling means includes a cooling tower of a water circulation system and a cooling fan whose rotation speed is controlled manually or by an inverter.
  • the upper limit temperature of the cooling water measured outside the float bath is set to 40 ° C. or less.
  • tin adhered to the surface of the top roll is prevented from falling on the glass ribbon or in the molten tin bath during production, and fluctuations in the plate width of the glass ribbon, or concave bubble defects on the bottom surface of the glass ribbon. It is possible to provide a float glass manufacturing apparatus and a float glass manufacturing method for suppressing the above.
  • FIG. 1 is a flowchart schematically showing a flow of a method for producing a plate glass by a float process.
  • FIG. 2 is a top view schematically showing an example of the upper surface of the float bath of the float glass manufacturing apparatus.
  • FIG. 3A is a side sectional view schematically showing an example of the relative positional relationship between the top roll and the glass ribbon, and an example of the tip end portion of the top roll.
  • FIG. 3B is a cross-sectional view schematically showing an example of the tip portion of the top roll.
  • FIG. 4 is a schematic view of a water circulation system as an example of the cooling device in the present invention.
  • FIG. 5 is a flowchart schematically showing the flow of the method for manufacturing a glass sheet according to the present invention.
  • FIG. 6 is a graph of changes over time in the temperature of the top roll cooling water and the outside air temperature.
  • FIG. 1 schematically shows a flow chart of a method for producing a plate glass by a float process.
  • the manufacturing method of plate glass by the float process is (I) a melting step (step S110) for melting the raw materials to produce molten glass; (II) In the float glass production, a glass ribbon forming step (step S120) for introducing a molten glass into a float bath and forming a glass ribbon; (III) A slow cooling step (step S130) in which a glass ribbon is obtained by gradually cooling the glass ribbon in a slow cooling furnace; Have
  • molten glass is manufactured by putting raw materials such as silica sand, limestone, and / or soda ash prepared and mixed in accordance with the composition of the plate glass into a melting furnace.
  • the temperature of the melting furnace varies depending on the composition of the plate glass, but is, for example, about 1400 ° C. to 1600 ° C.
  • the heating method is not particularly limited.
  • the raw material may be heated by a flame of a burner provided inside the melting furnace.
  • the burner uses, for example, heavy oil or natural gas as fuel.
  • heating may be performed using a general electric melting furnace.
  • the molten glass obtained in the step (I) is introduced into a float bath containing molten tin to form a glass ribbon. Moreover, the obtained glass ribbon is carried out from the exit of a float bath. This process will be described in detail later.
  • the slow cooling furnace can supply heat from the combustion gas or electric heater to a required position in the slow cooling furnace. Therefore, the glass ribbon introduced into the slow cooling furnace at a relatively high temperature is finally cooled to a temperature range close to normal temperature and discharged from the slow cooling furnace.
  • a plate glass is manufactured by the above process.
  • step S120 step S120
  • FIG. 2 is a diagram schematically showing an example of a top view of the float bath of the float glass manufacturing apparatus used in the glass ribbon forming step (II) (step S120).
  • the float glass manufacturing apparatus 200 includes an introduction unit 210, a float bath 230, a transport apparatus 280, and a top roll 300.
  • the introduction part 210 is a part for introducing the molten glass obtained in the aforementioned step (I) into the float bath 230 having molten tin (including molten tin alloy, hereinafter referred to as molten tin) 220 inside. It is.
  • the molten glass introduced into the float bath 230 continuously moves from the upstream side 232 to the downstream side 234 of the float bath 230 in a state of floating on the surface of the molten tin 220, whereby the glass ribbon 240 is moved. It is formed.
  • the glass ribbon 240 tends to reach an equilibrium thickness (for example, around 7 mm) due to the relationship between the surface tension of the molten glass and gravity in an unconstrained state, while the glass ribbon is pulled and conveyed in the traveling direction.
  • the width (the length in the vertical direction in FIG. 2) tends to shrink toward the central direction. Therefore, the top roll 300 is used to suppress the shrinkage of the glass ribbon 240 and maintain the thickness of the glass ribbon 240 at a predetermined thickness.
  • the temperature measuring device 260 is a device that measures the temperature of the cooling water of the top roll 300, and is installed outside the float bath 230.
  • a thermocouple is used for the temperature measuring device 260. By sequentially displaying the measured temperature data on the screen of the temperature display device 261, the monitor can easily grasp the measured temperature data.
  • the fluctuation range is set to 4 ° C. or less per day manually by a monitor or by the cooling fan 263 whose rotation speed is controlled by the inverter 262.
  • the fluctuation range in the present invention means a difference between the maximum temperature and the minimum temperature.
  • the rotational speed of the cooling fan 263 is increased from morning to noon, and the rotational speed of the cooling fan 263 is decreased from day to night.
  • the present invention is not limited to this. Even at midnight, when the fluctuation range of the temperature of the cooling water is likely to be outside the desired range, the rotational speed of the cooling fan 263 is increased or decreased.
  • the inverter 262 once converts AC power supplied as a driving power source for the cooling fan 263 into DC power, and converts it back to AC power having a frequency different from that of the AC power. Since the rotation speed of the cooling fan 263 depends on the frequency of the AC power converted again, the rotation speed of the cooling fan 263 can be finely adjusted by changing the frequency of the AC power. Therefore, the temperature of the cooling water can be kept within a desired fluctuation range.
  • the inverter 262 converts the drive power frequency of the cooling fan 263 to a high frequency and increases the rotational speed of the cooling fan 263. In addition, when the temperature of the cooling water is likely to fall and fall outside the desired fluctuation range, the inverter 262 converts the driving power frequency of the cooling fan 263 to a low frequency and reduces the rotational speed of the cooling fan 263.
  • the control means of the inverter 262 sends a command for adjusting the rotational speed to the cooling fan 263 that supplies cooling air so that the measured temperature approaches the preset temperature by feedback control such as PID control.
  • PID control such as PID control.
  • the PID control includes a proportional element (P), an integral element (I) and a differential element (D), and receives a temperature deviation between the measured temperature and the target temperature.
  • the distribution ratio is calculated according to the proportional gain, integration time, and derivative time, and the driving power frequency of the cooling fan 263 is determined.
  • FIG. 3 shows the relative positional relationship between the glass ribbon 240 and the tip portion 320 of the top roll 300 when the top roll 300 is used to maintain the thickness of the glass ribbon 240 at a constant thickness.
  • the top roll 300 has a disk-shaped rotating member 325 at the distal end portion 320.
  • the rotating member 325 has a protrusion 326 formed along the circumferential direction around the rotating member 325.
  • both side portions of the glass ribbon 240 are pressed by the rotating member 325, particularly the protrusion 326, and the rotating member 325 is It is rotated. For this reason, the glass ribbon 240 is restrained by the rotating member 325 and cannot contract in a direction perpendicular to the traveling direction. Therefore, the glass ribbon 240 can be maintained at a predetermined thickness by using the top roll 300.
  • the rotating member 325 has a structure that is rotated with respect to the central axis 328 of the top roll 300.
  • the front end portion 320 of the top roll 300 Since the front end portion 320 of the top roll 300 is in direct contact with the high temperature glass ribbon 240, the temperature may increase significantly during use. Therefore, the front end portion 320 of the top roll 300 is configured to be cooled by circulating cooling water through a front end portion space formed inside the top roll 300. Thereby, the temperature rise of the front-end
  • the float glass manufacturing apparatus 200 shown in FIG. 2 includes a transfer device 280 provided in the dross box 281 outside the outlet on the downstream side 234 of the float bath 230.
  • the transport device 280 is, for example, a lift-out roll device.
  • the glass ribbon 240 is drawn out from the outlet of the float bath 230 by the rotation of the lift-out roll device, and then carried into the slow cooling furnace 285. Thereafter, the glass ribbon 240 is gradually cooled to room temperature (near) in the slow cooling furnace 285.
  • FIG. 3A is a side sectional view schematically showing an example of the relative positional relationship between the top roll and the glass ribbon and an example of the top end portion of the top roll.
  • FIG. 3B is a cross-sectional view schematically showing an example of the tip portion of the top roll.
  • the top roll 300 has a front end portion 320 and a support post portion 350, and the front end portion 320 is installed at one end of the support post portion 350.
  • the distal end portion 320 is constituted by a substantially disc-shaped rotating member 325, and the rotating member 325 has a hollow structure having a distal end portion space 322 therein. Further, the rotating member 325 has two rows of gear shapes formed along the entire outer periphery of the disk, and thus has a plurality of protrusions 326 on the outer periphery.
  • the protrusion 326 has a triangular cross section, but the present invention is not limited to this. That is, the protrusion 326 may have any cross-sectional shape.
  • the cross-section of the protrusion may be rectangular or semicircular.
  • the rows of the protrusions 326 are not particularly limited, and may be two rows as shown in FIG. 3A or another number (for example, one row or three rows or more).
  • the support column 350 includes an inner tube 355 and an outer tube 370 that extend along the direction of the same central axis 328.
  • the inner tube 355 and the outer tube 370 are constituted by hollow tubular members.
  • the inner tube 355 has an inner space 360 inside.
  • One end of the outer tube 370 is coupled to the distal end portion 320 via the coupling portion 340, and the inner tube 355 is accommodated therein.
  • An outer space 380 is formed between the inner peripheral surface of the outer tube 370 and the outer peripheral surface of the inner tube 355.
  • the top roll 300 has a speed reduction mechanism such as a gear connected to the outer tube 370 and a drive device such as a motor on the other end side of the support column 350. Therefore, by controlling a speed reduction mechanism such as a gear or a timing belt by the driving device, the rotating member 325 of the distal end portion 320 can be rotated at a predetermined number of rotations via the outer tube 370 of the column portion 350.
  • a speed reduction mechanism such as a gear connected to the outer tube 370 and a drive device such as a motor on the other end side of the support column 350. Therefore, by controlling a speed reduction mechanism such as a gear or a timing belt by the driving device, the rotating member 325 of the distal end portion 320 can be rotated at a predetermined number of rotations via the outer tube 370 of the column portion 350.
  • the tip portion 320 of the top roll 300 is cooled by the cooling water.
  • the cooling water passes through the inner space 360 of the inner tube 355, reaches the tip end space 322 of the rotating member 325, and then flows through the outer space 380.
  • the cooling water may flow in the opposite direction.
  • a cooling water flow path is formed through a path through the inner space 360 of the inner tube 355, the tip end space 322 of the rotating member 325, and the outer space 380.
  • the temperature of the cooling water flowing through the flow path of the top roll 300 fluctuates in accordance with the fluctuation of the outside air temperature, and is in a state of success.
  • cooling water whose temperature fluctuation width is controlled within 4 ° C. is used.
  • the fluctuation range of the temperature of the cooling water used in the present invention is preferably controlled within 3 ° C, more preferably controlled within 2 ° C, and even more preferably controlled within 1 ° C. .
  • the fluctuation range of the temperature of the cooling water in the present invention is preferably controlled in units of days (24 hours). Since the outside air temperature fluctuates by several degrees to several tens of degrees per day, by controlling the fluctuation range in units of days, tin falls from the top roll, fluctuations in the width of the glass ribbon, or the bottom of the glass ribbon It is possible to suppress a bubble defect of a concave surface.
  • the fluctuation range of the temperature of the cooling water in the present invention is controlled even in units of one hour.
  • the outside air temperature may fluctuate close to 10 ° C during one hour, so by controlling the fluctuation range even in units of one hour, the tin falls from the top roll, the fluctuation of the glass ribbon width, or the glass ribbon A concave bubble defect on the bottom surface can be suppressed.
  • the upper limit temperature of the cooling water measured by the temperature measuring device is preferably 40 ° C. or lower.
  • the temperature of the cooling water is highest in the tip end space 322 of the top roll 300 in contact with the glass ribbon.
  • the upper limit temperature exceeds 40 ° C.
  • the impurity components contained in the cooling water may be deposited and deposited on the walls constituting the flow path due to the evaporation of the cooling water. Therefore, the flow path of the cooling water is narrowed or the flow path is blocked, and there may arise a problem that the top end portion of the top roll cannot be sufficiently cooled.
  • the material of the rotating member 325 is not particularly limited.
  • the rotating member 325 is made of a metal such as steel or a heat-resistant alloy. By using the metal rotating member 325, the cooling effect during cooling of the rotating member 325 is enhanced.
  • the surface of the rotating member 325 may be coated or surface-modified.
  • the coating material preferably has heat resistance, and for example, metal nitride or the like may be used.
  • the surface modification preferably has a property of low affinity and / or low adsorptivity to glass ribbon, molten tin, tin oxide and the like.
  • the rotating member 325 has a substantially disk shape whose center passes through the central axis 328.
  • the diameter of the disk is not particularly limited, but is preferably in the range of, for example, 100 to 300 mm (about 4 to 12 inches), more preferably in the range of 120 to 250 mm (about 5 to 10 inches), 150 More preferably, it is in the range of ⁇ 230 mm (about 6-9 inches).
  • the material of the inner tube 355 and the outer tube 370 is not particularly limited.
  • the inner tube 355 and the outer tube 370 may be made of a metal such as steel (for example, stainless steel) or a heat resistant alloy.
  • the outer tube 370 may have a surface coated or surface modified.
  • the coating material preferably has heat resistance, and for example, metal nitride or the like may be used.
  • the surface modification preferably has a property of low affinity and / or low adsorptivity to glass ribbon, molten tin, tin oxide and the like.
  • FIG. 4 is a schematic view of a water circulation system as an example of the cooling device in the present invention.
  • the cooling device 400 includes a cooling tower 410 of a water circulation system and a cooling fan 263 whose rotation speed is controlled manually or by an inverter.
  • the water tank 450 at the bottom of the cooling tower 410 is connected to the suction port of the pump 420 via a pipe line, and the discharge port of the pump 420 is connected to the inlet of the heat exchanger 430 via the pipe line.
  • the outlet is connected to the upper side surface of the cooling tower 410 via a pipe line.
  • Cooling fins 440 are installed above the cooling tower 410, and a water treatment material 460 made of resin or metal is installed in a portion of the water tank 450 through which water passes.
  • the cooling tower 410 includes a round shape and a square shape, the water treatment material 460 is preferably round and square according to the shape.
  • the method for producing glass according to the present invention is based on the aforementioned float method, (1) introducing molten glass into the float bath (step S510); (2) transporting the molten glass from the upstream side of the float bath to the downstream side to form a glass ribbon (step S520); (3) By rotating the top roll in the traveling direction of the glass ribbon while pressing the tip of the top roll against a predetermined region in the traveling direction of the glass ribbon, that is, the upper surface of both sides of the glass ribbon in the upstream region of the float bath, A step of suppressing shrinkage of the glass ribbon, wherein the top roll has a tip space at the tip, and the tip space has a temperature fluctuation range of 4 ° C. or less per day. And a step (Step S530) through which water is circulated.
  • the present invention is effective for producing a non-alkali glass glass plate having a thin plate (plate thickness: 0.1 mm to 1.0 mm).
  • non-alkali glass Asahi Glass trade name
  • FIG. 6 is a graph showing daily fluctuations in the cooling water temperature Tb and the outside air temperature Ta under the above conditions.
  • the vertical axis of the graph represents the cooling water temperature Tb and the outside air temperature Ta.
  • the solid line represents the cooling water temperature.
  • the outside air temperature is represented by a broken line, and the value depends on the temperature measuring device installed in the float bath building.
  • the fluctuation amount on the vertical axis was normalized by setting each minimum temperature to 0 ° C.
  • the normalized cooling water temperature Tb and outside air temperature Ta were set to Tb ′ and Ta ′, respectively.
  • FIG. 6 shows that although the outside air temperature Ta on the outer surface of the bottom casing varies greatly with the passage of time, the cooling water temperature Tb on the outer surface of the bottom casing does not vary greatly, and the daily fluctuation range is a desired range. It is within.
  • Example 1 the fluctuation range of the cooling water temperature was set to 2 ° C. or less per day.
  • Example 2 the fluctuation range was within 4 ° C. on a daily basis, and within 3 ° C. on an hourly basis.
  • Example 3 the fluctuation range of the cooling water temperature was within 4 ° C. per day, and was over 3 ° C. per hour.
  • Comparative Example 1 since the temperature of the cooling water was determined according to the fluctuation of the outside air temperature, the fluctuation range exceeded 4 ° C. on a daily basis.
  • Comparative Example 2 the number of rotations of the cooling fan was adjusted so that the upper limit temperature of the cooling water measured outside the float bath exceeded 40 ° C.
  • the fluctuation range of the temperature of the cooling water By making the fluctuation range of the temperature of the cooling water within 4 ° C. per day, it was confirmed that (1) the occurrence frequency of fluctuations in the width of the glass ribbon and (2) the occurrence frequency of tin falling fixed to the top roll could be suppressed. . Furthermore, it was confirmed that the frequency of falling can be further suppressed by setting the fluctuation range within 3 ° C. in units of one hour. Moreover, if the upper limit temperature of the cooling water measured outside the float bath was set to 40 ° C. or less, (3) it was confirmed that the glass ribbon was not wound around the top roll tip.
  • tin fixed to the top roll surface can be prevented from falling on the glass ribbon or into the molten tin bath during production, and the fluctuation of the plate width of the glass ribbon can be suppressed.
  • Productivity can be improved.
  • the float glass is useful as a glass substrate for a display such as a liquid crystal display device.
  • central axis 350 ... strut part, 355 ... inner pipe, 360 ... inner space, 370 ... outer pipe, 380 ... outer space, 400 ... cooling device, 410 ... Cooling tower, 420 ... Pump, 430 ... Heat exchanger, 440 ... Cooling fin, 450 ... Water tank part, 460 ... Water treatment Wood

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
PCT/JP2013/082492 2012-12-11 2013-12-03 フロートガラス製造装置、およびフロートガラス製造方法 WO2014091967A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201380064954.2A CN104837780A (zh) 2012-12-11 2013-12-03 浮法玻璃制造装置和浮法玻璃制造方法
KR1020157015400A KR102120201B1 (ko) 2012-12-11 2013-12-03 플로트 유리 제조 장치 및 플로트 유리 제조 방법
JP2014551992A JPWO2014091967A1 (ja) 2012-12-11 2013-12-03 フロートガラス製造装置、およびフロートガラス製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-270240 2012-12-11
JP2012270240 2012-12-11

Publications (1)

Publication Number Publication Date
WO2014091967A1 true WO2014091967A1 (ja) 2014-06-19

Family

ID=50934259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/082492 WO2014091967A1 (ja) 2012-12-11 2013-12-03 フロートガラス製造装置、およびフロートガラス製造方法

Country Status (5)

Country Link
JP (1) JPWO2014091967A1 (ko)
KR (1) KR102120201B1 (ko)
CN (1) CN104837780A (ko)
TW (1) TW201422540A (ko)
WO (1) WO2014091967A1 (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016073262A1 (en) * 2014-11-03 2016-05-12 Ppg Industries Ohio, Inc. Automated float glass system
KR20190033442A (ko) 2017-09-21 2019-03-29 에이지씨 가부시키가이샤 붕규산 유리 및 그의 제조 방법
KR20200018290A (ko) 2018-08-09 2020-02-19 에이지씨 가부시키가이샤 냉각 구조체, 플로트 유리 제조 장치 및 플로트 유리 제조 방법
CN112456774A (zh) * 2020-12-21 2021-03-09 成都金杉玻璃工艺有限公司 一种玻璃生产用快速冷却装置
JP2021050137A (ja) * 2014-11-19 2021-04-01 フィブ スタン 傾斜型ホイールを備えた、フロートガラスリボンの縁を操作する装置、及び該装置を備えた設備
CN113816590A (zh) * 2021-10-28 2021-12-21 河南省中联玻璃有限责任公司 一种基于浮法工艺的超白玻璃及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110407445B (zh) * 2019-07-09 2021-11-26 四川虹科创新科技有限公司 浮法玻璃成型过程中板宽事故的检测和处理系统及方法
CN110357406A (zh) * 2019-08-21 2019-10-22 河北南玻玻璃有限公司 一种改变玻璃下表边部应力的边水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01137156A (ja) * 1987-11-25 1989-05-30 Mitsubishi Motors Corp クーリングタワー用冷却ファンの運転制御方法
JPH0222336U (ko) * 1988-07-29 1990-02-14
JP2004298918A (ja) * 2003-03-31 2004-10-28 Nippon Steel Corp 耐熱亀裂性に優れた連続鋳造ロール及び冷却方法
WO2010147189A1 (ja) * 2009-06-19 2010-12-23 旭硝子株式会社 トップロール、フロートガラス製造装置、およびフロートガラス製造方法
JP2012086989A (ja) * 2010-10-15 2012-05-10 Nippon Electric Glass Co Ltd ガラス板製造装置及びガラス板製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2743346Y (zh) * 2004-06-25 2005-11-30 中国洛阳浮法玻璃集团有限责任公司 浮法玻璃生产线冷却水的恒温控制装置
JP5056035B2 (ja) 2007-02-05 2012-10-24 旭硝子株式会社 フロート法による板ガラスの製造方法
CN103209935B (zh) * 2010-11-04 2015-08-26 旭硝子株式会社 浮法平板玻璃的制造方法及浮法平板玻璃的制造装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01137156A (ja) * 1987-11-25 1989-05-30 Mitsubishi Motors Corp クーリングタワー用冷却ファンの運転制御方法
JPH0222336U (ko) * 1988-07-29 1990-02-14
JP2004298918A (ja) * 2003-03-31 2004-10-28 Nippon Steel Corp 耐熱亀裂性に優れた連続鋳造ロール及び冷却方法
WO2010147189A1 (ja) * 2009-06-19 2010-12-23 旭硝子株式会社 トップロール、フロートガラス製造装置、およびフロートガラス製造方法
JP2012086989A (ja) * 2010-10-15 2012-05-10 Nippon Electric Glass Co Ltd ガラス板製造装置及びガラス板製造方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016073262A1 (en) * 2014-11-03 2016-05-12 Ppg Industries Ohio, Inc. Automated float glass system
KR20170063863A (ko) * 2014-11-03 2017-06-08 비트로, 에스.에이.비. 데 씨.브이. 자동화된 플로트 글래스 시스템
KR101974189B1 (ko) 2014-11-03 2019-04-30 비트로 플랫 글래스 엘엘씨 자동화된 플로트 글래스 시스템
JP2021050137A (ja) * 2014-11-19 2021-04-01 フィブ スタン 傾斜型ホイールを備えた、フロートガラスリボンの縁を操作する装置、及び該装置を備えた設備
JP7065934B2 (ja) 2014-11-19 2022-05-12 フィブ スタン 傾斜型ホイールを備えた、フロートガラスリボンの縁を操作する装置、及び該装置を備えた設備
KR20190033442A (ko) 2017-09-21 2019-03-29 에이지씨 가부시키가이샤 붕규산 유리 및 그의 제조 방법
KR20200018290A (ko) 2018-08-09 2020-02-19 에이지씨 가부시키가이샤 냉각 구조체, 플로트 유리 제조 장치 및 플로트 유리 제조 방법
CN112456774A (zh) * 2020-12-21 2021-03-09 成都金杉玻璃工艺有限公司 一种玻璃生产用快速冷却装置
CN113816590A (zh) * 2021-10-28 2021-12-21 河南省中联玻璃有限责任公司 一种基于浮法工艺的超白玻璃及其制备方法

Also Published As

Publication number Publication date
KR102120201B1 (ko) 2020-06-08
JPWO2014091967A1 (ja) 2017-01-12
CN104837780A (zh) 2015-08-12
KR20150095662A (ko) 2015-08-21
TW201422540A (zh) 2014-06-16

Similar Documents

Publication Publication Date Title
WO2014091967A1 (ja) フロートガラス製造装置、およびフロートガラス製造方法
TWI527777B (zh) Manufacture of glass plate and manufacturing method of glass plate
WO2010147189A1 (ja) トップロール、フロートガラス製造装置、およびフロートガラス製造方法
JP6280503B2 (ja) ガラスリボンを形成するプロセス及び装置
TWI480251B (zh) A manufacturing method of a glass plate and a manufacturing apparatus for a glass plate
JP5418228B2 (ja) 板ガラスの製造方法
JP5704362B2 (ja) フロート板ガラスの製造方法およびフロート板ガラスの製造装置
TWI393684B (zh) 製造浮玻璃用之浮浴系統
KR101844319B1 (ko) 유리 기판의 제조 방법 및 유리 기판 제조 장치
TWI568696B (zh) A glass substrate manufacturing method and a glass substrate manufacturing apparatus
JP7438285B2 (ja) ガラス溶融物の表面上の気泡の寿命を減少させる方法
TWI588101B (zh) 用於提供乾淨玻璃製造環境的設備與方法
US20180009695A1 (en) Method for manufacturing float glass, and float glass
CN106007342B (zh) 支承辊、玻璃制造装置、及玻璃制造方法
CN104797539A (zh) 缓冷装置、缓冷方法、玻璃板的制造装置、及玻璃板的制造方法
KR20160125288A (ko) 플로트 유리의 제조 장치, 플로트 유리의 제조 방법
KR20150034114A (ko) 유리 기판의 제조 방법 및 유리 기판의 제조 장치
TWI454435B (zh) Glass plate manufacturing method
JP6630217B2 (ja) ガラス板の製造方法
CN105377773A (zh) 玻璃基板的制造方法及玻璃基板制造装置
TW201802043A (zh) 用於滾輪失衡管理的系統及方法
WO2015099157A1 (ja) ガラス基板の製造方法およびガラス基板製造装置
TW202330380A (zh) 處理玻璃帶的方法及其設備

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13863423

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014551992

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20157015400

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13863423

Country of ref document: EP

Kind code of ref document: A1