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WO2019170140A1 - Procédé de polissage et de formation de bande de verre, et procédé de production d'un substrat en verre et appareil de production - Google Patents

Procédé de polissage et de formation de bande de verre, et procédé de production d'un substrat en verre et appareil de production Download PDF

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Publication number
WO2019170140A1
WO2019170140A1 PCT/CN2019/077473 CN2019077473W WO2019170140A1 WO 2019170140 A1 WO2019170140 A1 WO 2019170140A1 CN 2019077473 W CN2019077473 W CN 2019077473W WO 2019170140 A1 WO2019170140 A1 WO 2019170140A1
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Prior art keywords
platinum
glass
polishing
glass ribbon
forming
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Ceased
Application number
PCT/CN2019/077473
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English (en)
Chinese (zh)
Inventor
汪立新
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Individual
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Individual
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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
    • 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
    • C03B17/061—Forming glass sheets by lateral drawing or extrusion
    • C03B17/062—Forming glass sheets by lateral drawing or extrusion combined with flowing onto a solid or gaseous support from which the sheet is drawn
    • 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
    • C03B17/068—Means for providing the drawing force, e.g. traction or draw rollers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225—Refining
    • C03B5/2252—Refining under reduced pressure, e.g. with vacuum refiners

Definitions

  • the present application relates to the field of glass substrate production, and in particular to a glass ribbon polishing forming method, a glass substrate production method and a production facility.
  • the more mature glass substrate production methods mainly include the float method, the slit down method and the overflow down method, but each of the above methods has various drawbacks.
  • the polishing process is to place the molten glass in a tin bath and perform polishing in a tin bath.
  • the tin bath in the method is generally large and can only be placed horizontally, has a large area, and needs to provide heat to the tin bath to ensure the fluidity of the tin liquid, the investment cost is large, and the maintenance cost is also very large.
  • the polishing forming control of the glass substrate is very difficult to operate, and the glass surface scratching often occurs during the polishing forming process, and the yield of the glass substrate is lowered.
  • the overflow down-draw method (also known as the melt down-draw method) is capable of producing glass sheets with excellent flatness and smoothness without the need for a secondary forming process (grinding and Polishing, etc., is currently the main production method of high quality glass.
  • the method is monopolized by foreign technology, and the price of the glass substrate prepared by the method is always high.
  • a first object of the present application is to provide a glass ribbon polishing forming method to alleviate the technical problems of high cost, low yield, and monopolization of production technology in the prior art glass substrate production method.
  • a second object of the present application is to provide a method for producing a glass substrate.
  • the glass substrate produced by the method has the advantages of smooth surface, no scratch, high yield, and low production cost.
  • a third object of the present application is to provide a glass substrate production apparatus which is adjustable in size and can be placed arbitrarily without being limited by a space for placement.
  • a glass ribbon polishing forming method wherein a glass liquid flows through a surface-polished platinum or platinum alloy polishing forming portion to form a glass ribbon, the first long and wide surface of the glass ribbon maintains the original surface, and the second long and wide surface of the glass ribbon and the surface are polished.
  • the platinum or platinum alloy polishing forming portion contacts the polishing forming process of the glass ribbon.
  • Polishing of the glass ribbon is accomplished by contact of the platinum or platinum alloy polishing forming portion.
  • the shape of the platinum or platinum alloy polishing forming portion includes a plate, a cylinder or a cylinder.
  • the surface of the platinum or platinum alloy polishing forming portion is a flat surface or a curved surface.
  • the platinum alloy is a platinum rhodium alloy or a platinum rhodium alloy.
  • the viscosity of the glass ribbon is: 102 Pa ⁇ s-1 ⁇ 10 7 Pa ⁇ s;
  • the glass ribbon is self-polishing to solidified into a single layer of glass.
  • a glass substrate production method comprising the step of performing a polishing process on a glass ribbon by a glass ribbon polishing method.
  • the molten glass liquid is first subjected to clarification and homogenization, and then subjected to a polishing forming treatment;
  • the glass ribbon is subjected to a buffing treatment process, followed by a thin forming process and an annealing process to obtain the glass substrate.
  • a glass substrate production apparatus comprising a glass liquid holding device and a platinum or platinum alloy polishing forming portion, the glass liquid flowing through the platinum or platinum alloy polishing forming portion after flowing out of the holding device.
  • the production apparatus further includes a clarification homogenization device, the clarification homogenization device being composed of at least two sets of flow tubes and a clarification tank having a cylindrical cavity, the flow tube being in communication with the clarification tank, The bottom of the clarification tank is higher than the bottom of the flow tube, and the clarification homogenization device is in communication with the sump device, and the glass liquid enters the sump device after being clarified and homogenized.
  • a clarification homogenization device being composed of at least two sets of flow tubes and a clarification tank having a cylindrical cavity, the flow tube being in communication with the clarification tank, The bottom of the clarification tank is higher than the bottom of the flow tube, and the clarification homogenization device is in communication with the sump device, and the glass liquid enters the sump device after being clarified and homogenized.
  • the production apparatus includes a thin-film forming device that performs a thin-film forming process on the glass ribbon obtained by the buff forming process.
  • the thin forming device includes a pulling roller disposed in pairs and a driving member that drives the pulling roller to rotate;
  • the traction roller is provided with a cooling component
  • the cooling component comprises a coolant intake pipe and N coolant exhaust pipes, and the exhaust pipe communicates with the tail end of the intake pipe to form a coolant circulation passage; wherein N ⁇ 2, and N is a natural number.
  • the glass ribbon polishing forming method provided by the present application is to melt the molten glass through a platinum or platinum alloy polishing forming portion to complete the polishing of the molten glass.
  • the glass liquid flows on the surface of the platinum or platinum alloy polishing forming portion to form a glass ribbon having a certain thickness, the first long and wide surface of the obtained glass ribbon maintains the original surface, and the second long and wide surface and the surface polished platinum Or the platinum alloy polishing forming portion is contacted for polishing.
  • the platinum or platinum alloy polishing forming portion is a tangible fixing member, which can be set in any shape or connection structure, and has a small footprint. It is not limited by the horizontal placement of tin bath in the tin bath, which reduces the investment cost and maintenance cost of the equipment.
  • the polishing forming method provided by the present application can design the surface of the platinum or platinum alloy polishing forming portion into a desired pattern, and the desired pattern can be obtained during polishing forming to avoid secondary processing.
  • the glass has a side on the original surface and is not subjected to the pressing and pulling force, thereby avoiding scratching of the glass and improving the yield of the glass substrate.
  • the overflow down-draw method it has opened up a new production method of glass substrates, breaking the monopoly of foreign high-quality glass substrate production technology, and is of great significance for reducing the production cost of glass.
  • FIG. 1 is a schematic structural view of a glass substrate production apparatus according to Embodiment 2 of the present application.
  • Figure 2 is a schematic view showing the structure of the holding device in the structure shown in Figure 1;
  • Figure 3 is a schematic view showing the structure of the traction roller in the structure shown in Figure 1;
  • FIG. 4 is a schematic structural view of a glass substrate production apparatus according to Embodiment 3 of the present application.
  • FIG. 5 is a schematic structural view of a glass substrate production apparatus according to Embodiment 4 of the present application.
  • FIG. 6 is a schematic structural view of a glass substrate production apparatus according to Embodiment 5 of the present application.
  • FIG. 7 is a schematic structural view of a channel-shaped platinum metal plate in a glass substrate production apparatus according to Embodiment 7 of the present application;
  • FIG. 8 is a schematic structural view of a glass substrate production apparatus according to Embodiment 8 of the present application.
  • Icon 10-furnace; 20-flow tube; 30-clarifier; 40-homogenization tank; 41-mixer; 50-filling device; 51-discharge port; 52-planar side wall; Metal plate; 61-grooved platinum metal plate; 62-platinum metal cylinder; 70-glass ribbon; 80-traction roller; 81-coolant intake pipe; 82-coolant exhaust pipe.
  • One aspect of the present application provides a glass ribbon polishing forming method for flowing a glass liquid through a surface-polished platinum or platinum alloy polishing forming portion to form a glass ribbon, the first long and wide faces of the glass ribbon maintaining the original surface, and the glass ribbon The two long and wide faces are in contact with the surface-polished platinum or platinum alloy polishing forming portion to complete the polishing process of the glass ribbon.
  • the glass ribbon polishing forming method provided by the present application is to melt the molten glass through a platinum or platinum alloy polishing forming portion to complete the polishing of the molten glass.
  • the glass liquid flows on the surface of the platinum or platinum alloy polishing forming portion to form a glass ribbon having a certain thickness, the first long and wide surface of the obtained glass ribbon maintains the original surface, and the second long and wide surface and the surface polished platinum Or the platinum alloy polishing forming portion is contacted for polishing.
  • the platinum or platinum alloy polishing forming portion is a tangible fixing member, which can be set in any shape or connection structure, and has a small footprint. It is not limited by the horizontal placement of tin bath in the tin bath, which reduces the investment cost and maintenance cost of the equipment.
  • the polishing forming method provided by the present application can design the surface of the platinum or platinum alloy polishing forming portion into a desired pattern, and the desired pattern can be obtained during polishing forming to avoid secondary processing.
  • the glass has a side on the original surface and is not subjected to the pressing and pulling force, thereby avoiding scratching of the glass and improving the yield of the glass substrate.
  • the overflow down-draw method it has opened up a new production method of glass substrates, breaking the monopoly of foreign high-quality glass substrate production technology, and is of great significance for reducing the production cost of glass.
  • the platinum or platinum alloy polishing forming portion has a polished or polished surface of a platinum or platinum alloy surface for polishing the glass ribbon. Polishing of the surface does not mean that the surface of the polished portion of the platinum or platinum alloy is flat, and may be a surface of any shape, but it must be smooth.
  • the glass liquid is cooled and thickened during the process of polishing through the platinum or platinum alloy polishing forming portion, and the glass liquid flowing through the polishing portion of the platinum or platinum alloy is lowered in temperature relative to the molten glass in the initial molten state, and the viscosity is decreased. Increased, with a certain degree of fluidity and plasticity.
  • the platinum or platinum alloy polishing forming portion in the present application is not melted by contact with the molten glass.
  • the surface topography of the platinum or platinum alloy polishing section can be designed according to the surface topography of the processed glass substrate. If the surface topography of the glass substrate to be processed is required to be flat and high transmittance is required, the surface of the platinum or platinum alloy polishing portion can be designed to be a smooth plane. If the surface morphology of the glass substrate to be processed is required to be a pattern, the surface of the platinum or platinum alloy polishing portion can be designed as a corresponding pattern.
  • the specific shape of the platinum or platinum alloy polishing forming portion is not limited in the present application, as long as the platinum or platinum alloy polishing forming portion can be in surface contact with the glass liquid to realize the polishing forming process for the molten glass. can.
  • the first long and wide side of the glass ribbon retains the original surface
  • the second long and wide sides of the glass ribbon and at least one side of the thickness direction are in contact with the surface polished platinum or platinum alloy polishing forming portion to complete the glass
  • the belt is polished and formed.
  • the thickness of the glass ribbon can be limited by the contact of the platinum or platinum alloy polishing forming portion.
  • the shape of the platinum or platinum alloy polishing forming portion includes, but is not limited to, a plate, a cylinder, or a cylinder.
  • the platinum or platinum alloy plate comprises a platinum or platinum alloy plate or trough plate.
  • the surface of the platinum or platinum alloy polishing forming portion is a flat surface or a curved surface.
  • Platinum or platinum alloy polishing forming parts can be designed into plates, cylinders or cylinders according to production conditions or process requirements, and the surface topography can be flat or curved.
  • one long and wide surface refers to the surface composed of the length and width of the glass substrate
  • a long and wide face is in a free state, maintaining the original state of the glass.
  • a grooved platinum or platinum alloy polishing plate When a grooved platinum or platinum alloy polishing plate is used for polishing, a long and wide side of the glass substrate and two long and high sides (the side of the long and high sides are the sides of the glass substrate) are polished and formed by platinum or platinum alloy. The part is in contact and the remaining surface is in a free state.
  • the platinum alloy is a platinum rhodium alloy or a platinum rhodium alloy.
  • Platinum or platinum alloy has good high temperature resistance, and the surface of platinum or platinum alloy facilitates the flow of molten glass, which is more conducive to the polishing and forming of molten glass.
  • the content of platinum in the metal is 60%-100% by weight.
  • the platinum or platinum alloy polishing forming portion includes a substrate and a platinum or platinum alloy coating, and the substrate is a high temperature resistant inorganic material matrix.
  • the base material may be a corundum or zirconia refractory material, or a high temperature resistant metal such as tungsten or molybdenum.
  • a smooth coating of platinum or platinum alloy can be prepared on the surface of the high temperature resistant inorganic material substrate or the high temperature resistant metal substrate by flame spraying or vapor deposition.
  • the viscosity of the glass liquid is: 102 Pa ⁇ s-1 ⁇ 10 7 Pa ⁇ s.
  • the quality of the polishing can be improved. Further, the thickness of the glass substrate is controlled by controlling the viscosity to adjust the flow rate of the glass liquid.
  • the glass ribbon is self-polishing to solidified into a single layer of glass.
  • a second aspect of the present application provides a glass substrate production method comprising the step of performing a buffing process on a glass ribbon by the above-described glass ribbon polishing forming method.
  • the glass substrate production method provided by the present application has all the advantages of the above-described glass ribbon polishing forming method, and details are not described herein again.
  • the molten glass liquid is first subjected to clarification and homogenization before being subjected to a polishing forming treatment; optionally, the glass ribbon is subjected to a buff forming process and then subjected to a thin forming process and an annealing process to obtain the glass substrate.
  • the melting of the glass raw material, the clarification and homogenization of the molten glass, and the subsequent thinning, annealing and cutting of the glass ribbon can be carried out by the existing method without special modification. Therefore, the glass substrate production method provided by the present application can be combined with the existing process equipment to have a high degree of use and a wide range of use.
  • a third aspect of the present application provides a glass substrate production apparatus comprising a glass liquid holding device and a platinum or platinum alloy polishing forming portion capable of flowing through the platinum or after flowing out of the holding device Platinum alloy polishing forming section.
  • the glass substrate production apparatus includes a feeding device of molten glass liquid and a platinum or platinum alloy polishing forming portion, wherein the holding device and the platinum or platinum alloy polishing forming portion may or may not be in contact with each other.
  • the platinum or platinum alloy polishing forming portion may be directly connected to the edge of the holding device, and the molten glass flows out from the holding device and directly flows through the platinum or platinum alloy polishing forming portion to complete the polishing process and then perform subsequent processing.
  • the platinum or platinum alloy polishing forming portion may not be in contact with the holding device, and the platinum or platinum alloy polishing portion may be placed under the discharge device.
  • the side wall of the discharge port side of the receiving device can be designed as a planar structure, and when the molten glass flows out of the holding device, it will continue to flow downward along the side wall of the planar structure. The temperature of the glass liquid flows downward during the downward flow, and then is laid on the surface of the platinum or platinum alloy polishing forming portion, and flows through the platinum or platinum alloy polishing forming portion to complete the polishing forming process.
  • the platinum or platinum alloy polishing forming part is a platinum or platinum alloy polishing plate, that is, the platinum or platinum alloy polishing forming plate is a flat plate or a grooved plate
  • the platinum or platinum alloy polishing plate can be placed vertically or horizontally. It can be placed obliquely as long as the molten glass can flow on the platinum or platinum alloy plate.
  • the platinum or platinum alloy polishing forming portion is a platinum or platinum alloy cylinder or a cylinder
  • the relative movement of the cylinder or the cylinder and the molten glass can be performed to complete the polishing forming process.
  • the holding device in the present application may be provided in a different shape structure, for example, may be square or circular.
  • the shape and size of the spout are designed according to the size of the glass substrate to be processed.
  • the production apparatus further includes a clarification homogenization device, the clarification homogenization device being composed of at least two sets of flow tubes and a clarification tank having a cylindrical cavity, the flow tube and The clarification tank is connected, the bottom of the clarification tank is higher than the bottom of the flow tube, the clarification homogenization device is in communication with the sump device, and the glass liquid enters the sump device after being clarified and homogenized.
  • a clarification homogenization device being composed of at least two sets of flow tubes and a clarification tank having a cylindrical cavity, the flow tube and The clarification tank is connected, the bottom of the clarification tank is higher than the bottom of the flow tube, the clarification homogenization device is in communication with the sump device, and the glass liquid enters the sump device after being clarified and homogenized.
  • the molten glass liquid is clarified and homogenized before entering the holding device.
  • the clarifier is connected to a vacuum device to depressurize the clarifier, leaving the clarifier at a negative pressure to remove air bubbles from the molten glass.
  • the molten glass flowing into the agitation tank is stirred to obtain a more uniform glass liquid.
  • the bottom of the clarification tank is higher than the bottom of the flow tube, which is equivalent to providing a convex portion at the bottom of the clarification tank.
  • the production apparatus includes a thin-film forming device, and the glass ribbon obtained after the polishing forming process is subjected to a thin-film forming process by the thin-film forming device;
  • the forming device includes a pulling roller disposed in pairs and a driving member that drives the pulling roller to rotate.
  • the glass ribbon is subjected to a thinning forming process by the action of the thin forming apparatus.
  • the glass ribbon can be thinned and formed by a pulling roller.
  • the traction rollers are arranged in pairs, and in order to make the force more uniform, they can be symmetrically arranged in pairs.
  • a cooling member is disposed in the traction roller, and the cooling member includes a coolant intake pipe and N coolant exhaust pipes, and a tail end of the intake pipe communicates with the exhaust pipe to form a coolant circulation. Channel; where N ⁇ 2 and N is a natural number.
  • the coolant may be a liquid coolant or a gas coolant.
  • the liquid coolant can be selected from water, and the gas coolant can be selected from nitrogen.
  • This embodiment is a method for producing a glass substrate, comprising the following steps:
  • the viscosity of the glass liquid is controlled at 102 Pa ⁇ s -1 ⁇ 10 7 Pa ⁇ s, and then flows through the platinum metal plate. Spreading on a platinum metal plate to obtain a glass ribbon after polishing and forming;
  • the embodiment is a glass substrate production apparatus, including a melting furnace 10 , a flow tube 20 , a clarification tank 30 , a homogenization tank 40 , a feeding device 50 , a platinum metal plate 60 , and a thin forming device .
  • the structure of the feeding device is shown in Figure 2.
  • the production equipment in this embodiment also includes a dust seal system and a glass liquid cooling system, which are not shown in the drawings.
  • the melting furnace 10 communicates with the clarification tank 30 through the flow tube 20, the vacuum pump is connected to the inside of the clarification tank 30, and the clarification tank 30 is subjected to a pressure reduction treatment by a vacuum pump to bring the clarification tank 30 into a negative pressure state.
  • the clarifier 30 is connected to the homogenization tank 40 through the flow tube 20, and the agitator 41 is disposed in the homogenization tank 40, and the clarified glass liquid is introduced into the homogenization tank 40 for homogenization treatment. After the glass liquid is homogenized, it enters the holding device 50, and the side wall of the discharging port 51 of the holding device 50 is a flat side wall 52. The molten glass overflows from the discharging port 51 and flows through the plane side wall 52.
  • the platinum metal plate 60 below the planar sidewall 52 the molten glass continues to flow on the platinum metal plate 60 and is laid on the surface of the platinum metal plate 60 to form a glass ribbon 70, wherein the platinum metal plate 60 is vertically placed on the planar sidewall 52.
  • the glass ribbon is subjected to a thinning forming process by a thin drawing forming apparatus, followed by annealing and slitting, and finally a glass substrate is obtained.
  • the draw forming apparatus of the present embodiment includes a pair of pulling rolls 80 disposed symmetrically disposed on both sides of the glass ribbon 70.
  • the pulling roller 80 includes a coolant intake pipe 81 and two coolant exhaust pipes 82, and the coolant enters from the coolant intake pipe 81 and then flows out from the coolant exhaust pipe 82 to realize the traction roller. 80 cooling.
  • the present embodiment is a glass substrate production apparatus, which is different from the production apparatus in Embodiment 2 in that the platinum metal plate in this embodiment is directly connected to the outlet of the holding device, and the glass liquid is supplied from the material. After the device overflows, it flows directly through the platinum metal plate.
  • the specific connection structure is as shown in FIG. 4, and the structural components and the connection structure in this embodiment are the same as those in the second embodiment.
  • the embodiment is a glass substrate production device, which is different from the production device in the second embodiment in that the platinum metal plate in the embodiment is horizontally placed below the plane sidewall, and the specific connection structure is as shown in FIG. 5. Shown.
  • the present embodiment is a glass substrate production apparatus, which is different from the production apparatus in Embodiment 2 in that the platinum metal plate in this embodiment is placed obliquely below the planar side wall, and the platinum metal plate and the horizontal surface are The angle is 30°, and the specific connection structure is shown in Fig. 6.
  • the present embodiment is a glass substrate production apparatus, which is different from the production apparatus in Embodiment 5 in that the platinum metal plate in this embodiment is placed obliquely below the planar side wall, and the platinum metal plate and the horizontal surface are The angle is 45°.
  • the present embodiment is a glass substrate production apparatus, which is different from the production apparatus in Embodiment 2 in that the platinum or platinum alloy polishing forming portion in this embodiment is a groove-shaped platinum metal plate 61, and the grooved platinum plate is formed.
  • the metal plate 61 is placed obliquely below the plane side wall, and the angle between the grooved platinum metal plate 61 and the horizontal plane is 30°.
  • the structure of the channel-shaped platinum metal plate 61 is as shown in FIG.
  • the present embodiment is a glass substrate production apparatus, which is different from the production apparatus in Embodiment 2 in that the platinum or platinum alloy polishing forming portion in this embodiment is a platinum metal cylinder 62, a platinum metal cylinder. 62 is placed below the plane sidewall, the specific connection structure is shown in Figure 8.

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  • Surface Treatment Of Glass (AREA)

Abstract

La présente invention concerne un procédé de polissage et de formation de bande de verre et un appareil pour leur production, qui concerne le domaine technique des substrats en verre. Le procédé de polissage et de formation de bande de verre comprend : le fait de permettre au verre fondu de s'écouler à travers une pièce de polissage et de mise en forme de platine ou d'alliage de platine poli en surface afin de former une bande de verre, une première surface longue et large de la bande de verre est retenue comme surface d'origine, et une seconde surface longue et large de la bande de verre entre en contact avec la pièce de polissage et de mise en forme de platine ou d'alliage de platine poli en surface pour achever le traitement de polissage et de mise en forme pour la bande de verre.
PCT/CN2019/077473 2018-03-09 2019-03-08 Procédé de polissage et de formation de bande de verre, et procédé de production d'un substrat en verre et appareil de production Ceased WO2019170140A1 (fr)

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CN201810198609.2A CN108238710A (zh) 2018-03-09 2018-03-09 玻璃带抛光成形方法与玻璃基板生产方法及生产设备
CN201810198609.2 2018-03-09

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CN115784576A (zh) * 2022-11-30 2023-03-14 湖南旗滨微晶新材料有限公司 特种玻璃的摊薄成型设备、生产设备及摊薄成型工艺

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CN110698043B (zh) * 2019-11-21 2022-03-15 成都光明光电股份有限公司 玻璃板成形装置及方法
CN112340965B (zh) * 2020-12-08 2024-08-09 河北省沙河玻璃技术研究院 一种柔性玻璃的生产装置及生产方法
CN113135649B (zh) * 2021-04-29 2022-05-17 中建材（蚌埠）光电材料有限公司 一种utg玻璃原片生产成型方法及成型装置

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