CN113816616A - Transparent plate coating system and method and vehicle window glass - Google Patents

Transparent plate coating system and method and vehicle window glass Download PDF

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Publication number
CN113816616A
CN113816616A CN202110961317.1A CN202110961317A CN113816616A CN 113816616 A CN113816616 A CN 113816616A CN 202110961317 A CN202110961317 A CN 202110961317A CN 113816616 A CN113816616 A CN 113816616A
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CN
China
Prior art keywords
transparent plate
curvature
radius
transparent
plate
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Granted
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CN202110961317.1A
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Chinese (zh)
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CN113816616B (en
Inventor
陈志新
关金亮
高连祥
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Fuyao Glass Industry Group Co Ltd
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Fuyao Glass Industry Group Co Ltd
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Priority to CN202110961317.1A priority Critical patent/CN113816616B/en
Publication of CN113816616A publication Critical patent/CN113816616A/en
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/001—General methods for coating; Devices therefor
    • C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/15—Deposition methods from the vapour phase
    • C03C2218/154—Deposition methods from the vapour phase by sputtering

Abstract

The application provides a transparent plate film coating system, a transparent plate film coating method and vehicle window glass, which are used for coating a first transparent plate, wherein the transparent plate film coating system comprises a flattening device and a film coating cavity; the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, the first transparent plate has a first curvature radius in a first direction, and the first transparent plate is arranged on the flattening device; the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius; the film coating chamber is used for performing film coating treatment on the flattened first transparent plate on the flattening device so as to deposit a functional film on at least one surface of the first transparent plate. The first transparent plate after hot bending forming is flattened through the flattening device, so that a functional film can be well transmitted and formed when the film is coated in the film coating cavity, and the hot bending forming process and the film coating process are separated in the process and do not interfere with each other.

Description

Transparent plate coating system and method and vehicle window glass
Technical Field
The application relates to the technical field of vehicle spare and accessory part manufacturing, in particular to a transparent plate coating system and method and vehicle window glass.
Background
The transparent plate coating is an important technical process for producing glass, and the glass can provide lighting and vision for vehicles and buildings. In order to increase the strength of the glass and to adapt to different shapes, the glass is usually also subjected to a hot bending process. However, in the prior art, the transparent plate after being coated needs to be subjected to hot bending forming treatment, so that the coating needs to be protected from being damaged by as many dielectric layers and protective layers as possible, the difficulty of coating design and production is increased, and the requirement on the sputtering precision of the coating process is high. Meanwhile, the coating film on part of the transparent plate also has a heat reflection effect, so that the transparent plate cannot be fully heated, the hot bending forming process is influenced, and the defects of poor profile quality, low hot bending forming efficiency, insufficient stress, low yield and the like of hot bending forming are caused.
Disclosure of Invention
The application discloses transparent plate coating system can solve the technical problem that mutual exclusion exists in transparent plate hot-bending forming process and coating process in the process.
In a first aspect, the present application provides a transparent plate coating system for coating a first transparent plate, the transparent plate coating system comprising a flattening device and a coating chamber;
the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, the first transparent plate has a first curvature radius in a first direction, and the first transparent plate is arranged on the flattening device;
the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius;
the film coating chamber is used for performing film coating treatment on the flattened first transparent plate on the flattening device so as to deposit a functional film on at least one surface of the first transparent plate.
The first transparent plate after hot bending forming has certain curvature and toughness, and the first transparent plate after hot bending forming is flattened through the flattening device, so that the functional film can be well transmitted and formed when the film is coated in the film coating cavity, and the hot bending forming process and the film coating process are separated in the process and do not interfere with each other.
Optionally, the flattening device includes a substrate, a pressing plate, and a plurality of pressing portions arranged at intervals, the first transparent plate is arranged on one side of the substrate, the pressing plate is arranged on one side of the first transparent plate away from the substrate and surrounds the periphery of the first transparent plate, the pressing portions are arranged on one side of the pressing plate away from the first transparent plate, and the pressing portions and the pressing plate are mutually matched to flatten the first transparent plate.
Optionally, the flattening device further includes a hinge and a rotating portion, the hinge extends from the substrate, is disposed on one side of the pressing plate, and is connected to the pressing plate, so that the pressing plate can be turned over with the hinge as an axis; the rotating part extends out from the substrate and is connected with the pressing part, and when the rotating part rotates, the pressing part is driven to rotate.
Optionally, the distance between the inner edge of the pressing plate and the film removing boundary line of the first transparent plate ranges from 0mm to 0.2 mm.
Optionally, the thickness of the inner edge of the pressure plate in the stacking direction of the first transparent plate and the flattening device is less than or equal to 1 mm.
Optionally, the film coating chamber includes a plurality of sub-chambers arranged at intervals, adjacent sub-chambers are communicated with each other through a connecting portion, and the height of the connecting portion in the stacking direction of the first transparent plate and the flattening device is less than or equal to 20 mm.
Optionally, the coating chamber further includes a plurality of transmission portions arranged at intervals, the transmission portions are used for transmitting the flattening device and the first transparent plate to the adjacent sub-chambers through the connecting portions, and the length of the first transparent plate in the transmission direction of the transmission portions is greater than or equal to the length between 3 adjacent transmission portions.
Optionally, the functional film comprises at least two sublayers, and the sublayers are selected from at least one of an oxide layer, a nitride layer, an oxynitride layer, a metal layer and an alloy layer.
Optionally, the first radius of curvature is greater than or equal to 1800mm, and the second radius of curvature is greater than or equal to 8000 mm.
Optionally, the first transparent board has a third radius of curvature in the second direction, the third radius of curvature is greater than or equal to 8000mm, the flattened first transparent board has a fourth radius of curvature in the second direction, and the fourth radius of curvature is greater than the third radius of curvature.
Optionally, the second radius of curvature is infinity, and the fourth radius of curvature is infinity.
Optionally, the arch height of the flattened first transparent plate is less than or equal to 15 mm.
In a second aspect, the present application also provides a transparent plate coating method, including:
providing a first transparent plate, wherein the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, and the first transparent plate has a first curvature radius in a first direction;
providing a flattening device, wherein the first transparent plate is arranged on one side of the flattening device, the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius;
providing a film coating cavity, placing the flattening device and the flattened first transparent plate into the film coating cavity to perform film coating treatment on the first transparent plate, and depositing a functional film on at least one surface of the first transparent plate;
and taking the flattening device and the first transparent plate out of the film coating chamber, and taking the first transparent plate down from the flattening device, wherein the first transparent plate is restored to the first curvature radius from the second curvature radius.
Optionally, the first transparent board has a third curvature radius in the second direction, the flattened first transparent board has a fourth curvature radius in the second direction, the fourth curvature radius is greater than the third curvature radius, the first transparent board is taken down from the flattening device, and the first transparent board is restored to the third curvature radius from the fourth curvature radius.
In a third aspect, the application also provides a vehicle window glass, the vehicle window glass is a single glass sheet prepared by the transparent plate coating method in the second aspect, and the thickness of the functional film of the vehicle window glass is 50 nm-1000 nm.
In a fourth aspect, the application further provides a vehicle window glass, the vehicle window glass comprises a single glass sheet prepared by the transparent plate coating method in the second aspect, the vehicle window glass further comprises a thermoplastic intermediate layer and a second transparent plate, and the single glass sheet, the thermoplastic intermediate layer and the second transparent plate are pressed to form laminated glass.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any inventive exercise.
Fig. 1 is a schematic top view of a leveling device according to an embodiment of the present disclosure.
Fig. 2 is a schematic sectional view taken along line I-I in fig. 1.
FIG. 3 is a schematic cross-sectional view of a flattening apparatus according to an embodiment of the present application.
Fig. 4 is a schematic top view of a leveling device according to another embodiment of the present disclosure.
Fig. 5 is a partial cross-sectional schematic view of a coating chamber according to an embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view of a laminated glass according to an embodiment of the present disclosure.
Fig. 7 is a schematic flow chart of a transparent plate coating method according to an embodiment of the present disclosure.
Fig. 8 is a schematic cross-sectional view of a window glass provided in an embodiment of the present application.
Fig. 9 is a schematic cross-sectional view of a window glass according to another embodiment of the present application.
Fig. 10 is a schematic top view of a vehicle according to an embodiment of the present application.
Description of reference numerals: the device comprises a first direction-D1, a second direction-D2, a transparent plate coating system-1, a first transparent plate-11, a flattening device-12, a substrate-121, a pressing plate-122, a pressing part-123, a hinge-124, a rotating part-125, a coating chamber-13, a sub-chamber-131, a connecting part-132, a transmission part-133, a second transparent plate-14, a functional film-15, a protective layer-151, a dielectric layer-152, a functional layer-153, laminated glass-16, an adhesive layer-161, window glass-2, single glass-21, a thermoplastic intermediate layer-22, a vehicle-3 and a vehicle frame-31.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
The present application provides a transparent plate coating system 1 for coating a first transparent plate 11, please refer to fig. 1 and fig. 2 together, fig. 1 is a schematic top view of a leveling device according to an embodiment of the present application; fig. 2 is a schematic sectional view taken along line I-I in fig. 1. The transparent plate coating system 1 comprises a flattening device 12 and a coating chamber 13 (see figure 3). The first transparent board 11 is a bent glass board formed through a high temperature heat treatment of at least 560 ℃ and bending molding (i.e., a hot bending process), and the first transparent board 11 has a first radius of curvature in a first direction D1. The first transparent board 11 is disposed on the extending device 12, the extending device 12 is configured to flatten the first transparent board 11, and the flattened first transparent board 11 has a second radius of curvature in the first direction D1, where the second radius of curvature is greater than the first radius of curvature; the coating chamber 13 is used for coating the flattened first transparent board 11 on the flattening device 12 to deposit a functional film 15 on at least one surface of the first transparent board 11 (see fig. 4).
Specifically, the first direction D1 and the second direction D2 are shown by arrows in fig. 1. Wherein the first direction D1 refers to the main bending direction having the largest bending degree on the first transparent board 11. The second direction D2 refers to a secondary bending direction having a second degree of bending in the first transparent board 11. It should be noted that the size of the curvature radius can represent the degree of bending of the object, and the curvature radius is inversely related to the degree of bending of the object, i.e. the larger the curvature radius, the smaller the degree of bending of the object. It will be appreciated that when the radius of curvature is infinite, it represents that the object is completely flat.
In the present embodiment, the first transparent board 11 is disposed on the flattening device 12 to flatten the first transparent board 11 by the flattening device 12, that is, the second radius of curvature is greater than the first radius of curvature, thereby reducing the requirement for the coating process. After the functional film 15 is formed, the first transparent board 11 is removed by the flattening device 12, and the first transparent board 11 is restored from the second radius of curvature to the first radius of curvature.
Specifically, the first transparent plate 11 without being coated with a film is subjected to a hot bending forming process, so that the first transparent plate 11 has a certain curvature and toughness, and the hot bending forming process is excellent in effect because the first transparent plate 11 is not coated with a film. The hot bending forming level of the first transparent plate 11, namely hot bending forming indexes required by mandatory standards such as molded surface quality, surface stress, fragment state and the like are improved. In some embodiments, the first transparent board 11 may be subjected to a hot-roll forming process so that the surface stress thereof is greater than or equal to 21MPa (megapascal), and may be greater than or equal to 40 MPa; in some embodiments, the first transparent board 11 may be subjected to a hot-bending process to have a surface stress of 86MPa or more, and more preferably 105MPa or more.
As can be understood, in the present embodiment, since the first transparent board 11 after the hot bending forming has a certain curvature and toughness, the first transparent board 11 after the hot bending forming is flattened by the flattening device 12, so that the functional film 15 can be better transmitted and formed when the film is coated in the coating chamber 13, and the hot bending forming process and the coating process are separated in terms of process and do not interfere with each other.
It should be noted that the transparent plate coating system 1 provided in this embodiment does not perform the heat treatment process on the functional film 15 on the first transparent plate 11, but the conventional heat treatment process will cause the film surface color of the functional film 15 to change. Therefore, in the present embodiment, the color tuning and controlling capability of the plating process is improved. Specifically, the film surface color difference of the functional film 15 is less than or equal to 3, and optimally, less than or equal to 2.
In addition, in the design of the existing production line, the coated transparent plate is usually designed by adopting an interlayer. It can be understood that, in the present embodiment, the first transparent plate 11 is first hot-bent and formed, then coated, and then directly mounted on a vehicle to be used as a window glass, or directly laminated to form a laminated glass, and then mounted on the vehicle to be used as a window glass, and the functional film 15 on the first transparent plate 11 does not need to be subjected to a heat treatment process, so that the design of the existing process production line can be adapted, and the processing efficiency and quality are improved. Meanwhile, the first transparent board 11 after the functional film 15 is formed is directly pressed with the second transparent board 14, so that the time of exposing the film surface of the functional film 15 in the air can be reduced, and the problems of oxidation, mechanical loss and the like of the film surface in the standing or secondary processing process can be prevented to the greatest extent.
In a possible implementation manner, referring to fig. 2 again, the flattening device 12 includes a substrate 121, a pressing plate 122 and a plurality of pressing portions 123 arranged at intervals, the first transparent plate 11 is arranged on one side of the substrate 121, the pressing plate 122 is arranged on one side of the first transparent plate 11 away from the substrate 121 and surrounds the periphery of the first transparent plate 11, the pressing portion 123 is arranged on one side of the pressing plate 122 away from the first transparent plate 11, and the pressing portions 123 and the pressing plate 122 cooperate with each other to flatten the first transparent plate 11.
Specifically, the first transparent plate 11 after being hot-bent and formed has a fixed curvature radius and is in a bent shape, in this embodiment, the pressing plate 122 is disposed around the periphery of the first transparent plate 11, and is fixed by the pressure of the pressing portion 123, so that the first transparent plate 11 is integrally pressed flat and does not bounce, and the first transparent plate 11 is integrally flattened and smooth, which is beneficial to performing a film coating process in a film coating chamber.
In the present embodiment, the number of the press-fit portions 123 is 2 or more. It can be understood that, the more the number of the pressing portions 123 is, and the more the pressing portions 123 are dispersed, the better the pressing plate 122 fits with the pressing portions 123, so that the first transparent board 11 tends to be more flat. It is understood that, in other possible embodiments, the number of the pressing portions 123 is not limited by the present application.
In one possible embodiment, referring to fig. 2 again, the flattening device 12 further includes a hinge 124 and a rotating portion 125, the hinge 124 extends from the substrate 121, is disposed on one side of the pressing plate 122, and is connected to the pressing plate 122, so that the pressing plate 122 is turned around the hinge 124; the rotating portion 125 extends from the substrate 121 and is connected to the pressing portion 123, and when the rotating portion 125 rotates, the pressing portion 123 is driven to rotate.
Specifically, please refer to fig. 3, wherein fig. 3 is a schematic cross-sectional view of a flattening apparatus according to an embodiment of the present application. As shown in fig. 3, the pressing plate 122 is first turned outward with the hinge 124 as an axis, and the rotating portion 125 is rotated to drive the pressing portion 123 to rotate outward, so as to prevent the pressing plate 122 and the pressing portion 123 from blocking the first transparent board 11 disposed on the substrate 121.
After the first transparent board 11 is disposed on the substrate 121, as shown in fig. 2, the pressing plate 122 is turned inwards and attached to a side surface of the first transparent board 11 away from the substrate 121 by using the hinge 124 as an axis, the rotating portion 125 rotates and drives the pressing portion 123 to attach to a side surface of the pressing plate 122 away from the first transparent board 11, and generates pressure on the pressing plate 122, so that the pressing plate 122 presses the first transparent board 11.
It can be understood that, when the first transparent board 11 with the functional film 15 needs to be removed from the flatting device 12 after the functional film 15 is formed, the rotating part 125 can rotate to drive the pressing part 123 to rotate outwards, and the pressing plate 122 is turned outwards with the hinge 124 as an axial direction to remove the first transparent board 11, and after the first transparent board 11 is removed and released, the first transparent board 11 is restored from the second radius of curvature to the first radius of curvature.
It is understood that in other possible embodiments, the first transparent plate 11 can be mounted on the flattening device 12 or removed from the flattening device 12 in other manners, which are not limited in this application.
In a possible embodiment, the distance between the inner edge of the pressing plate 122 and the film removing boundary line of the first transparent plate 11 is in the range of 0mm to 0.2 mm.
Specifically, the film removal boundary line is a boundary line between the uncoated portion and the coated portion of the first transparent plate 11. In the present embodiment, the pressing plate 122 is disposed around the periphery of the first transparent plate 11, so that when the first transparent plate 11 is coated in the coating chamber 13, the coating of the periphery of the first transparent plate 11 is directly avoided. It can be understood that this arrangement does not require additional film removal at the peripheral portion of the first transparent board 11, which simplifies the film removal and reduces the production cost.
The film is removed from the peripheral portion of the first transparent plate 11, thereby preventing the functional film 15 from being oxidized and extending the life of the functional film 15.
Specifically, in the present embodiment, the distance between the inner edge of the pressing plate 122 and the film removing boundary line of the first transparent plate 11 is in the range of 0mm to 0.2mm, so as to avoid removing the film on the excessive peripheral edge of the first transparent plate 11 and prevent the film from affecting the function of the laminated glass plate.
It is understood that, since the pressing plate 122 is disposed around the periphery of the first transparent board 11, the first transparent board 11 has at least 2 boundary lines for removing the film. For example, referring to fig. 4 together, fig. 4 is a schematic top view of a flattening apparatus according to another embodiment of the present application, when the size of the first transparent board 11 is small, and the pressing plate 122 is only pressed on the upper and lower sides of the first transparent board 11, it can be understood that the first transparent board 11 has two film removing edges; referring to fig. 2 again, when the size of the first transparent board 11 is larger, and the pressing plate 122 is pressed on more sides of the first transparent board 11, the first transparent board 11 may have more film removing edges, which is not limited in the present application.
Note that, as shown in fig. 4, the present embodiment is different from the embodiment shown in fig. 1 in that the first direction D1 in the present embodiment is the same as the direction of the second direction D2 in fig. 1, and the second direction D2 in the present embodiment is the same as the direction of the first direction D1 in fig. 1. It is understood that, in the present embodiment, the first transparent board 11 has a small size, and the long sides of the first transparent board 11 are generally disposed in parallel along the left and right sides of the extending and flattening device 12 in fig. 4, and the short sides of the first transparent board 11 are generally disposed in parallel along the upper and lower sides of the extending and flattening device 12 in fig. 4, so that the first direction D1 and the second direction D2 are changed according to the direction in which the first transparent board 11 is disposed on the extending and flattening device 12.
It is understood that, in other possible embodiments, when the size of the first transparent board 11 is small, the flattening device 12 may flatten a plurality of first transparent boards 11 at the same time, which is not limited in this application.
In a possible embodiment, the thickness of the inner edge of the pressing plate 122 in the stacking direction of the first transparent plate 11 and the flattening device 12 is less than or equal to 1 mm.
Specifically, the stacking direction of the first transparent board 11 and the leveling device 12 is shown by an arrow in fig. 2. It can be understood that the thickness of the inner edge of the pressing plate 122 in the laminating direction is small, so as to avoid that when the pressing plate 122 presses the first transparent plate 11, too much sputtering source material is sputtered on the thickness surface of the pressing plate and is blocked by the thickness when the pressing plate presses the film removing boundary line of the first transparent plate 11 to cause indentation and film coating, which leads to color difference at the periphery of the functional film 15, and further prevent the formed laminated glass from having shadows at the film removing boundary line.
In the present embodiment, the thickness of the inner edge of the platen 122 in the stacking direction is less than or equal to 1mm, and preferably, the thickness of the inner edge of the platen 122 in the stacking direction is less than or equal to 0.5 mm. Specifically, the thickness of the inner edge of the pressure plate 122 in the stacking direction may be 0.1mm, 0.13mm, 0.2mm, 0.3mm, or the like, which is not limited in the present application.
In one possible embodiment, please refer to fig. 5, in which fig. 5 is a partial cross-sectional view of a coating chamber according to an embodiment of the present disclosure. The coating chamber 13 comprises a plurality of sub-chambers 131 arranged at intervals, the adjacent sub-chambers 131 are communicated through a connecting part 132, and the height of the connecting part 132 in the stacking direction of the first transparent plate 11 and the flattening device 12 is less than or equal to 20 mm.
Specifically, in order to form different functional films 15, the coating chamber 13 includes a plurality of sub-chambers 131, and sputtering sources in different sub-chambers 131 may be different, so that the first transparent plate 11 may form different materials in different sub-chambers 131 to form different functional films 15. Note that, when the first transparent board 11 is coated, an environment inside the sub-chamber 131 is generally a vacuum environment or a process environment implemented by filling a special gas. It is understood that, in order to facilitate the transportation of the first transparent board 11 in the different sub-chambers 131 and avoid the damage to the vacuum environment or the process environment of the special gas inside the sub-chambers 131, in the present embodiment, the height of the connecting portion 132 in the stacking direction of the first transparent board 11 and the flattening device 12 is less than or equal to 20 mm.
It can be understood that, since the first transparent board 11 is flattened by the flattening device 12 and then transferred to the different sub-chambers 131 through the connecting portion 132, in the present embodiment, the arch height of the first transparent board 11 can be made to be in a range of 5mm to 150 mm.
In a possible embodiment, referring to fig. 5 again, the coating chamber 13 further includes a plurality of transmission portions 133 disposed at intervals, the transmission portions 133 are used for transmitting the flattening device 12 and the first transparent plate 11 to the adjacent sub-chambers 131 through the connecting portion 132, and the length of the first transparent plate 11 in the transmission direction of the transmission portions 133 is greater than or equal to the length between 3 adjacent transmission portions 133.
Specifically, as shown by arrows in fig. 5, in the present embodiment, the length of the first transparent plate 11 in the transmission direction of the transmission portion 133 is greater than or equal to the length between 3 adjacent transmission portions 133, so that the transmission stability of the first transparent plate 11 on the transmission portion 133 can be improved, and the manufacturing capability of the first transparent plate 11 can be greatly improved. Specifically, the edge portion of the first transparent board 11 that is simultaneously coated may have a film removal width greater than or equal to 3mm, for example, 5mm to 25 mm.
It is understood that in other possible embodiments, the size limit of the first transparent plate 11 for realizing simultaneous coating may be changed according to different sizes of the sub-chamber 131 and the transmission part 133, and the application is not limited thereto.
In one possible embodiment, please refer to fig. 6, in which fig. 6 is a schematic cross-sectional view of a laminated glass according to an embodiment of the present disclosure. The functional film 15 includes at least two sublayers selected from at least one of an oxide layer, a nitride layer, an oxynitride layer, a metal layer, and an alloy layer.
Specifically, the material of the oxide layer includes an oxide of at least one of Zn, Si, Sn, Ti, Nb, Zr, Hf, Mg, Ni, In, Al, Ga, W, Bi, Se, Cr, Ca, Y, Cu, Sm, Ce, Mn, Mo, Sb, such as aluminum-doped zinc oxide AZO, zinc tin oxide ZnSnOx, titanium oxide TiOx, silicon dioxideSiO2Zirconium oxide ZrOx, and the like. The material of the nitride layer includes nitride of at least one of Zn, Si, Sn, Ti, Nb, Zr, Al, Cr, such as SiN, ZrN, SiAlN, SiZrN, NbN, and the like. The material of the oxynitride layer comprises oxynitride of at least one of Si, Zr and Al, such as SiON, ZrON, AlON, etc. The metal layer is made of Ag, Au, Cu, Ti, Nb, Mo or Al. The material of the alloy layer includes an alloy of at least two of Cr, Ni, Al, Ti, Mg, Mn, Zn, Ag, Cu, In, such as NiCr, AgCu, AgIn, and the like.
In this embodiment, the sub-layer of the functional film 15 may include any one of a protective layer 151, a dielectric layer 152, or a functional layer 153, and the functional film 15 includes at least 2 dielectric layers 152, at least 1 protective layer 151, and at least 1 functional layer 153, and the dielectric layers 152 are respectively distributed on two sides of the functional layer 153. The protective layer 151 may optionally be an oxide layer and/or a nitride layer, such as SiO2、Si3N4Etc.; the dielectric layer 152 may be at least one of an oxide layer, a nitride layer, an oxynitride layer, and an alloy layer, such as ZnSnOx, SiN, ZrON, NiCr, etc.; the functional layer 153 may be an oxide layer, a nitride layer, a metal layer or an alloy layer, such as indium tin oxide ITO, niobium nitride NbN, silver Ag, silver copper alloy AgCu, or the like.
In a possible embodiment, the first radius of curvature is greater than or equal to 1800mm, such as 1900mm, 2000mm, 3000mm, 5000mm, 6000mm, etc., and the second radius of curvature is greater than or equal to 8000mm, such as 10000mm, 20000mm, 30000 mm.
In the present embodiment, the first transparent board 11 is hot-bent to a bending degree of 1800mm or more in the first radius of curvature. After the first transparent board 11 is placed on the flattening device 12 to be flattened, the first transparent board 11 reaches a bending degree that the second curvature radius is greater than or equal to 8000 mm. It is understood that, in the present embodiment, the extending device 12 flattens the first transparent board 11 at least in the first direction D1.
If the first transparent board 11 is only bent in the first direction D1, the first transparent board 11 may be referred to as a single-curved glass, and may be applied to various glass designs.
In one possible embodiment, referring again to fig. 1, the first transparent board 11 has a third radius of curvature in the second direction D2, the third radius of curvature is greater than or equal to 8000mm, and the flattened first transparent board 11 has a fourth radius of curvature in the second direction D2, the fourth radius of curvature being greater than the third radius of curvature.
It is understood that the present embodiment is different from the previous embodiment in that the first transparent board 11 has a third radius of curvature in the second direction D2, and in the present embodiment, the first transparent board 11 is bent in both the first direction D1 and the second direction D2, which may be referred to as spherical glass.
The first direction D1 is a main bending direction of the first transparent board 11, the second direction D2 is a secondary bending direction of the first transparent board 11, the first direction D1 is perpendicular to the second direction D2, and the third radius of curvature is greater than the first radius of curvature.
In one possible embodiment, the second radius of curvature is infinite and the fourth radius of curvature is infinite.
It will be appreciated that the first transparent sheet 11 may be partially or completely flattened on the flattening apparatus 12 depending on the degree of hot bend forming of the first transparent sheet 11. When the first transparent board 11 is completely flattened or approaches to be completely flattened on the flattening device 12, the second radius of curvature is infinite, and the fourth radius of curvature is infinite.
In a possible embodiment, the height of the first transparent plate 11 after flattening is less than or equal to 15 mm.
It can be understood that, after the first transparent board 11 is flattened by the flattening device 12, the first transparent board is transmitted to the different sub-chambers 131 through the connecting portion 132. In order to prevent the flattened first transparent board 11 from passing through the connecting portion 132, in the present embodiment, the arched height of the first transparent board 11 is less than or equal to 15 mm.
Fig. 7 is a schematic flow chart of a transparent plate coating method according to an embodiment of the present disclosure. The transparent plate coating method comprises the following steps: steps S701, S702, S703, and S704, and steps S701, S702, S703, and S704 are described in detail below.
S701, providing a first transparent plate, wherein the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, and the first transparent plate has a first curvature radius in a first direction;
s702, providing a flattening device, wherein the first transparent plate is arranged on one side of the flattening device, the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius;
s703, providing a film coating chamber, placing the flattening device and the flattened first transparent plate into the film coating chamber to perform film coating treatment on the first transparent plate, and depositing a functional film on at least one surface of the first transparent plate;
s704, taking the flattening device and the first transparent plate out of the film coating chamber, taking the first transparent plate down from the flattening device, and recovering the first transparent plate from the second curvature radius to the first curvature radius.
Specifically, please refer to the above description of the transparent plate coating system 1 for the first transparent plate 11, the flattening device 12, the coating chamber 13, the functional film 15, the second transparent plate 14, and the laminated glass 16, which is not described herein again.
In this embodiment, the transparent plate material needs to be cut, broken and polished to form the first transparent plate 11. After the first transparent board 11 is subjected to the hot bending forming process, the first transparent board 11 is washed and dried, and then is placed on the flattening device 12.
In a possible embodiment, the first transparent board 11 has a third radius of curvature in the second direction D2, the flattened first transparent board 11 has a fourth radius of curvature in the second direction D2, the fourth radius of curvature being greater than the third radius of curvature, the first transparent board 11 being removed from the flattening apparatus 12, the first transparent board 11 returning from the fourth radius of curvature to the third radius of curvature.
The present application further provides a vehicle window 2, please refer to fig. 8 together, and fig. 8 is a schematic cross-sectional view of the vehicle window provided in an embodiment of the present application. The vehicle window glass 2 is a single piece of glass 21 prepared by the transparent plate coating method, and the thickness of the functional film 15 of the vehicle window glass 2 is 50 nm-1000 nm. The functional film 15 on the vehicle window glass 2 is not subjected to high-temperature heat treatment and bending forming at least 560 ℃, namely the functional film 15 is not subjected to a hot bending forming process. Specifically, please refer to the above description for the transparent plate coating method, which is not described herein again.
It can be understood that the thickness of the functional film 15 of the single piece of glass 21 prepared by the transparent plate coating method is relatively thin, so that the preparation of the vehicle window glass 2 with relatively high process requirements can be realized. The functional film 15 may be located outside or inside the window.
The present application further provides a vehicle window 2, please refer to fig. 9 together, and fig. 9 is a schematic cross-sectional view of a vehicle window provided in another embodiment of the present application. The vehicle window glass 2 comprises a single glass sheet 21 prepared by the transparent sheet coating method, a thermoplastic intermediate layer 22 and a second transparent sheet 14, wherein the single glass sheet 21, the thermoplastic intermediate layer 22 and the second transparent sheet 14 are pressed to form a laminated glass. The functional film 15 may be located on the vehicle outer side of the laminated glass, may be located on the vehicle inner side of the laminated glass, and may be located inside the laminated glass. The functional film 15 on the vehicle window glass 2 is not subjected to high-temperature heat treatment and bending forming at least 560 ℃, namely the functional film 15 is not subjected to a hot bending forming process.
Fig. 10 is a schematic top view of a vehicle 3 according to an embodiment of the present application, and fig. 10 is a schematic top view of the vehicle. The vehicle 3 comprises the laminated glass 16 prepared by the transparent plate coating method and a vehicle frame 31, wherein the laminated glass 16 is arranged on the vehicle frame 31 in a bearing mode.
Specifically, please refer to the above description for the laminated glass 16, which is not repeated herein. In the present embodiment, after the laminated glass 16 is mounted on the vehicle body frame 31, at least 1 of the film-removed edges is an exposed edge.
Specifically, the laminated glass 16 prepared by the transparent plate coating method may have different properties according to the materials of the first transparent plate 11 and the second transparent plate 14 and the number and materials of the functional films 15. For example, in one possible embodiment, the laminated glass 16 has a visible light transmission of 70% or more, a solar energy transmission of 60% or less, and optimally a solar energy transmission of 40% or less. For another example, in another possible embodiment, the laminated glass 16 has a visible light transmittance of 50% or less, a solar energy transmittance of 20% or less, and an optimal solar energy transmittance of 16% or less.
The principle and the embodiment of the present application are explained herein by applying specific examples, and the above description of the embodiment is only used to help understand the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (16)

1. A transparent plate coating system is used for coating a first transparent plate and is characterized by comprising a flattening device and a coating cavity;
the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, the first transparent plate has a first curvature radius in a first direction, and the first transparent plate is arranged on the flattening device;
the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius;
the film coating chamber is used for performing film coating treatment on the flattened first transparent plate on the flattening device so as to deposit a functional film on at least one surface of the first transparent plate.
2. The transparent plate coating system of claim 1, wherein the flattening device comprises a substrate, a pressing plate and a plurality of pressing portions arranged at intervals, the first transparent plate is arranged on one side of the substrate, the pressing plate is arranged on one side of the first transparent plate, which faces away from the substrate, and is arranged around the periphery of the first transparent plate, the pressing portions are arranged on one side of the pressing plate, which faces away from the first transparent plate, and the pressing portions and the pressing plate cooperate with each other to flatten the first transparent plate.
3. The transparent plate coating system of claim 2, wherein the flattening device further comprises a hinge and a rotating portion, the hinge extending from the substrate, being disposed at one side of the pressing plate, and being connected to the pressing plate so that the pressing plate can be turned around the hinge; the rotating part extends out from the substrate and is connected with the pressing part, and when the rotating part rotates, the pressing part is driven to rotate.
4. The transparent plate coating system of claim 2, wherein the distance between the inner edge of the pressing plate and the film removing boundary line of the first transparent plate is in the range of 0mm to 0.2 mm.
5. The transparent plate coating system of claim 2, wherein the thickness of the inner edge of the pressing plate in the stacking direction of the first transparent plate and the flattening device is less than or equal to 1 mm.
6. The transparent plate coating system of claim 1, wherein the coating chamber comprises a plurality of sub-chambers arranged at intervals, adjacent sub-chambers are communicated through a connecting part, and the height of the connecting part in the stacking direction of the first transparent plate and the flattening device is less than or equal to 20 mm.
7. The transparent plate coating system of claim 6, wherein the coating chamber further comprises a plurality of transmission parts arranged at intervals, the transmission parts are used for transmitting the flattening device and the first transparent plate to the adjacent sub-chambers through the connecting parts, and the length of the first transparent plate in the transmission part transmission direction is greater than or equal to the length between 3 adjacent transmission parts.
8. The transparent plate coating system of claim 1, wherein the functional film comprises at least two sublayers selected from at least one of an oxide layer, a nitride layer, an oxynitride layer, a metal layer, and an alloy layer.
9. The transparent plate coating system of claim 1, wherein the first radius of curvature is 1800mm or greater and the second radius of curvature is 8000mm or greater.
10. The transparent plate coating system of claim 1, wherein the first transparent plate has a third radius of curvature in the second direction, the third radius of curvature being greater than or equal to 8000mm, and wherein the flattened first transparent plate has a fourth radius of curvature in the second direction, the fourth radius of curvature being greater than the third radius of curvature.
11. The transparent plate coating system of claim 9 or 10, wherein the second radius of curvature is infinity and the fourth radius of curvature is infinity.
12. The transparent plate coating system of claim 1 wherein the first transparent plate after flattening has an aspect ratio of less than or equal to 15 mm.
13. A transparent plate coating method is characterized by comprising the following steps:
providing a first transparent plate, wherein the first transparent plate is a bent glass plate formed by high-temperature heat treatment at least 560 ℃ and bending forming, and the first transparent plate has a first curvature radius in a first direction;
providing a flattening device, wherein the first transparent plate is arranged on one side of the flattening device, the flattening device is used for flattening the first transparent plate, the flattened first transparent plate has a second curvature radius in the first direction, and the second curvature radius is larger than the first curvature radius;
providing a film coating cavity, placing the flattening device and the flattened first transparent plate into the film coating cavity to perform film coating treatment on the first transparent plate, and depositing a functional film on at least one surface of the first transparent plate;
and taking the flattening device and the first transparent plate out of the film coating chamber, and taking the first transparent plate down from the flattening device, wherein the first transparent plate is restored to the first curvature radius from the second curvature radius.
14. The method for coating a transparent plate of claim 13 wherein the first transparent plate has a third radius of curvature in the second direction, the flattened first transparent plate has a fourth radius of curvature in the second direction, the fourth radius of curvature being greater than the third radius of curvature, the first transparent plate being removed from the flattening apparatus and the first transparent plate returning from the fourth radius of curvature to the third radius of curvature.
15. A window glass characterized in that it is a single sheet of glass produced by the transparent plate coating method according to claim 13 or 14, and the functional film of the window glass has a thickness of 50nm to 1000 nm.
16. A window glass comprising a single sheet of glass produced by the transparent sheet coating method of claim 13 or 14, the window glass further comprising a thermoplastic interlayer and a second transparent sheet laminated to form a laminated glass.
CN202110961317.1A 2021-08-20 2021-08-20 Transparent plate coating system and method and vehicle window glass Active CN113816616B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6805960B1 (en) * 1999-06-08 2004-10-19 Turkiye Sise Ve Cam Fabrikalari Thermostable glazing
CN108048813A (en) * 2018-01-18 2018-05-18 无锡奥芬光电科技有限公司 A kind of resin substrate coating clamp
CN108383396A (en) * 2018-02-27 2018-08-10 张家港外星人新材料科技有限公司 The double-deck film glass with anti-reflection film and antistatic automatically cleaning film and its preparation method
CN108396301A (en) * 2018-04-16 2018-08-14 元亮科技有限公司 A kind of coating clamp for ultra-thin glass plated film
CN213865960U (en) * 2020-12-14 2021-08-03 沧州天瑞星光热技术有限公司 Ultra-thin glass coating film fixing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6805960B1 (en) * 1999-06-08 2004-10-19 Turkiye Sise Ve Cam Fabrikalari Thermostable glazing
CN108048813A (en) * 2018-01-18 2018-05-18 无锡奥芬光电科技有限公司 A kind of resin substrate coating clamp
CN108383396A (en) * 2018-02-27 2018-08-10 张家港外星人新材料科技有限公司 The double-deck film glass with anti-reflection film and antistatic automatically cleaning film and its preparation method
CN108396301A (en) * 2018-04-16 2018-08-14 元亮科技有限公司 A kind of coating clamp for ultra-thin glass plated film
CN213865960U (en) * 2020-12-14 2021-08-03 沧州天瑞星光热技术有限公司 Ultra-thin glass coating film fixing device

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