CN110668711B - Preparation process of ultra-thick interlayer Low-E glass and Low-E glass - Google Patents
Preparation process of ultra-thick interlayer Low-E glass and Low-E glass Download PDFInfo
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- CN110668711B CN110668711B CN201910915330.6A CN201910915330A CN110668711B CN 110668711 B CN110668711 B CN 110668711B CN 201910915330 A CN201910915330 A CN 201910915330A CN 110668711 B CN110668711 B CN 110668711B
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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
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
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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
- C03C17/3644—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 the metal being silver
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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
- C03C17/3657—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 the multilayer coating having optical properties
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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
- 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
- C03C2218/156—Deposition methods from the vapour phase by sputtering by magnetron sputtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses a preparation process of ultra-thick interlayer Low-E glass and the Low-E glass, which comprises the following steps: firstly, cutting and edging glass sheets to obtain a first glass substrate, a second glass substrate and a third glass substrate; respectively carrying out heat treatment; plating a composite film layer on one surface of the second glass substrate; cleaning and drying the first glass substrate and the second glass substrate; covering an SGP film bonding sheet between the first glass substrate and the second glass substrate; prepressing the laminated first glass substrate and second glass substrate by adopting a constant-temperature convection process; preserving the heat of the pre-pressed first glass substrate and the pre-pressed second glass substrate; the first glass substrate, the second glass substrate and the third glass substrate are arranged at intervals to form a hollow layer. The preparation process designed by the invention adopts a constant-temperature convection rolling process, so that the SGP film and the glass substrate are uniformly heated, the production quality is improved, the production cost is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the production field of laminated glass, in particular to a preparation process of ultra-thick laminated Low-E glass and the Low-E glass.
Background
The coated glass has good heat insulation performance, especially low-emissivity coated glass can effectively inhibit infrared light from transmitting light, reduce heat exchange at two sides of the glass, and has excellent energy-saving performance and optical performance. Because the interlayer, particularly the SGP film, of the laminated glass is a tough and transparent flexible material, when the laminated glass is impacted and broken, fragments still adhere to the interlayer firmly, and the residual strength of the SGP can still bear a certain load, so that the SGP laminated glass has excellent anti-collision performance, anti-theft and anti-explosion performance and disaster resistance. The SGP is colorless and transparent, and is not easy to yellow, and the matching use of the coating and the SGP interlayer can achieve the top-level glittering and translucent optical effect. Therefore, the composite processing of the SGP interlayer and the coating film enables the glass to show more excellent performances: has excellent safety, comfort and coating color aesthetic property, thereby being popular with architects.
Because the glass is bent and warped, particularly after being toughened, the laminated glass above 10/8(10 is the thickness of the first piece of glass, and 8 is the thickness of the second piece of glass attached to the first piece of glass interlayer) cannot be produced due to the limitation of the height of the coating cavity, and therefore, the design requirements of thicker, larger and safer glass requirements cannot be met by adopting the conventional process of coating the first piece of glass and then coating the second piece of glass.
In the prior art, another processing method is adopted to obtain Low-E laminated glass by coating a film, then tempering the film and then laminating the film, but the process requires that the film has the characteristic of high temperature resistance and is few in variety, meanwhile, the glass is large in waveform and poor in flatness due to the fact that the Low-radiation characteristic of the Low-E film causes uneven heating during tempering, and in addition, the SGP film is uneven in heating due to the Low-radiation characteristic of the Low-E film during laminating, so that the produced laminated glass has the defect of large-area bubbles. The prior art also adopts a process of firstly tempering, then coating and then vacuumizing, but the vacuumizing needs to consume a large amount of manpower and material cost, the production efficiency is extremely low, the batch production cannot be met, and the requirement of customers on goods is difficult to meet.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation process of ultra-thick interlayer Low-E glass and the Low-E glass, so as to produce the interlayer glass with good flatness and uniformity and improve the production quality, and the technical scheme is as follows:
the invention provides a preparation process of ultra-thick interlayer Low-E glass, which comprises the following steps:
s1: firstly, cutting and edging selected glass sheets to obtain a first glass substrate, a second glass substrate and a third glass substrate;
s2: performing heat treatment on the first glass substrate, the second glass substrate and the third glass substrate in the step S1 by a physical tempering method, respectively;
s3: placing the second glass substrate subjected to heat treatment in the step S2 in a vacuum magnetron sputtering device, and plating a composite film layer on one surface of the second glass substrate, wherein the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E;
s4, cleaning and drying the first glass substrate after the heat treatment in the S2 step and the second glass substrate after the film coating in the S3 step;
s5, coating an SGP film between the first glass substrate and the second glass substrate dried in the step S4 to bond the first glass substrate and the second glass substrate;
s6, pre-pressing the first glass substrate and the second glass substrate which are laminated in the step S5 by adopting a constant-temperature convection process;
s7, insulating the first glass substrate and the second glass substrate pre-pressed in the step S6;
and S8, arranging the first glass substrate, the second glass substrate and the third glass substrate which are subjected to heat preservation in the S7 step at intervals to form hollow layers, and obtaining the hollow glass.
Further, after the step S3, a protective layer is attached to the surface of the second glass substrate plated with the composite film layer, wherein the thickness of the protective layer is 0.03-0.05mm, and then the first glass substrate and the second glass substrate are cleaned and dried, or
And after the step of S6, attaching a protective layer to the surface of the second glass substrate plated with the composite film layer after the pre-extrusion furnace, wherein the thickness range of the protective layer is 0.03-0.05mm, and then carrying out heat preservation.
Further, the protective layer is a PVC film.
Further, in the step S8, the PVC film on the second glass substrate after the heat preservation in the step S7 is removed, a third glass substrate is disposed above a side of the second glass substrate away from the first glass substrate, the second glass substrate and the third glass substrate are disposed at an interval to form a hollow layer, and an aluminum frame and a sealant are disposed in the hollow layer.
Further, in step S2, the heat treatment process is as follows: the furnace temperature is controlled at 685-710 ℃, the first glass substrate, the second glass substrate and the third glass substrate are uniformly heated and controlled at 610-630 ℃, and then the glass substrates are rapidly and uniformly cooled within a preset time threshold range.
Further, in step S3, sequentially plating each of the composite film layers on one surface of the second glass substrate; in step S4, the first glass substrate and the second glass substrate coated with the composite film layer in step 3 are cleaned with deionized pure water; in the step S5, the thickness of the SGP film is set to 0.76 to 2.28 mm.
Further, in step S6, the constant temperature convection process is as follows: and (2) placing the first glass substrate and the second glass substrate which are laminated in the step S5 into a convection rolling furnace for convection heating, wherein the convection rolling furnace comprises a plurality of heating areas and a rolling area which are sequentially arranged, the temperature range of each heating area is set to 130-160 ℃, the running speed of the glass substrate is set to 0.8-1.6m/min, the first glass substrate and the second glass substrate are subjected to convection heating and then are rolled by pressing rollers, the rolling pressure is set to 6-7bar, the distance between the two pressing rollers is 3-5mm smaller than the total thickness of the first glass substrate and the second glass substrate, the glass rolling temperature is set to 130-160 ℃, the glass substrates are moved out within a preset time threshold range, and the furnace outlet temperature is controlled to 50-60 ℃.
Further, in the step S7, the first glass substrate and the second glass substrate pre-pressed in the step S6 are placed in an autoclave for heat preservation, the heat preservation temperature range is set to 130-140 ℃, the pressure preservation pressure range is set to 12-13bar, the heat preservation time is set to 90-120min, and after the heat preservation is finished, the glass substrate is cooled to be lower than 45 ℃ and then is exhausted.
The invention also provides the ultra-thick interlayer Low-E glass which comprises one or more coated glass components, wherein each coated glass component comprises a second glass substrate and a first glass substrate which are arranged oppositely from top to bottom, an SGP (silicon germanium) film is arranged between the second glass substrate and the first glass substrate, one surface of the second glass substrate, which is far away from the first glass substrate, is plated with a composite film layer, and the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E; every two adjacent coated glass assemblies are arranged at intervals to form a hollow layer.
The invention also provides the ultra-thick interlayer Low-E glass which comprises one or more coated glass components, wherein each coated glass component comprises a second glass substrate and a first glass substrate which are arranged oppositely from top to bottom, an SGP (silicon germanium) film is arranged between the second glass substrate and the first glass substrate, one surface of the second glass substrate, which is far away from the first glass substrate, is plated with a composite film layer, and the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E; and a third glass substrate is arranged above one side of the second glass substrate, which is far away from the first glass substrate, and the second glass substrate and the third glass substrate are arranged at intervals to form a hollow layer.
The technical scheme provided by the invention has the following beneficial effects:
a. according to the preparation process of the ultra-thick interlayer Low-E glass, the production process of firstly toughening, then coating and then laminating is adopted, the composite film layer does not need to be heated at high temperature through toughening, the requirements of project appearance color and photo-thermal performance are met only by considering when the film layer structure is designed and the coating material is selected, and the manufactured Low-E film is various in color, good in uniformity, excellent in optical performance and good in glass flatness;
b. according to the preparation process of the ultra-thick interlayer Low-E glass, the thickness of the glass substrate is not limited by the height of a coating cavity of a vacuum magnetron sputtering device, so that the thickness of the produced interlayer coated glass is increased by more than 1 time compared with the thickness of the glass produced by the conventional method of coating after interlayer, and the rigidity, wind pressure resistance, shock resistance and the like of the glass are greatly improved;
c. the preparation process of the ultra-thick interlayer Low-E glass designed by the invention adopts a constant-temperature convection rolling process, so that the SGP film and the glass substrate are fully and uniformly heated, and the production quality is improved; the vacuum-pumping-free vacuum pump can meet the requirement of batch production, the vacuum pumping is not needed, the production cost is greatly reduced, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first flowchart of a process for preparing a super-thick interlayer Low-E glass according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a process for preparing a super-thick interlayer Low-E glass provided by an embodiment of the present invention;
FIG. 3 is a side view of a super thick interlayer Low-E glass made by a process for making a super thick interlayer Low-E glass according to an embodiment of the present invention;
FIG. 4 is a side view of another ultra-thick interlayer Low-E glass prepared by the process for preparing the ultra-thick interlayer Low-E glass provided by the embodiment of the invention.
Wherein the reference numerals include: 1-a first glass substrate, 2-a second glass substrate, 3-a third glass substrate, 4-SGP film, 5-a composite film layer, 6-sealant and 7-an aluminum frame.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
In an embodiment of the present invention, a process for preparing ultra-thick laminated Low-E glass is provided, mainly producing 10/10 or more coated laminated glass, and the specific structure is shown in fig. 1, which comprises the following steps:
s1: providing a glass original sheet, and carrying out cutting treatment and edging treatment on the glass original sheet: cutting the glass substrates into a first glass substrate, a second glass substrate and a third glass substrate according to the required type, thickness and size, then edging the glass substrates, and manually chamfering, mechanically coarsely grinding or finely grinding the edges of the two glass substrates according to requirements; the thickness ranges of the first glass substrate, the second glass substrate and the third glass substrate are set to be 10-22mm (mainly 10, 12, 15, 19 and 22 mm); the first glass substrate, the second glass substrate and the third glass substrate are common ultra-white or white glass products;
s2: the first glass substrate, the second glass substrate and the third glass substrate in the step S1 are respectively heat-treated by a physical tempering method, and in the step S2, the heat treatment process is as follows: the furnace temperature is controlled at 685-710 ℃, preferably 710 ℃, the first glass substrate, the second glass substrate and the third glass substrate are uniformly heated and controlled at 610-630 ℃, preferably 625 ℃, and then the first glass substrate and the second glass substrate are rapidly and uniformly cooled by different wind pressures within a preset time threshold range, so that the first glass substrate and the second glass substrate have certain strength and can be semi-tempered or fully tempered;
s3: placing the second glass substrate subjected to heat treatment in the step S2 in a vacuum magnetron sputtering device, and plating a composite film layer on one surface of the second glass substrate, wherein the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E and can meet the design requirements of different parameters and colors, and the single-silver Low-E, double-silver Low-E or triple-silver Low-E comprises a plurality of film layers, specifically, sequentially plating each film layer in the single-silver Low-E, double-silver Low-E or triple-silver Low-E on one surface of the second glass substrate;
s4, cleaning the first glass substrate after the heat treatment in the S2 step and the second glass substrate after the film coating in the S3 step, drying, cleaning by deionized pure water, and using a special cleaning machine, wherein the cleaning time is short and the cleaning effect is good;
s5, coating an SGP film (SGP is fully called as ionic intermediate film (Sentry Glassplus) which is a high-performance interlayer material) between the first glass substrate and the second glass substrate dried in the step S4, and bonding the first glass substrate and the second glass substrate (one surface of the second glass substrate with a coated film is far away from the first glass substrate, and the surface of the second glass substrate bonded with the first glass substrate is a tin surface), wherein the thickness range of the SGP film is set to be 0.76-2.28mm, the SGP film is a common interlayer glass intermediate film, and the SGP film is colorless, transparent and bright and not easy to yellow, has a color in Low-E, is matched with Low-E for use, and does not influence the color effect of the Low-E film;
s6, pre-pressing the first glass substrate and the second glass substrate which are laminated in the step S5 by adopting a constant temperature convection process, specifically: and (3) placing the first glass substrate and the second glass substrate which are subjected to the sheet combination in the step S5 into a convection rolling furnace for convection heating, wherein the convection rolling furnace comprises a plurality of heating areas and rolling areas which are sequentially arranged, the number of the heating areas is preferably three, each heating area comprises a plurality of groups of convection air boxes, preferably 8 groups of convection air boxes, the left side and the right side of the upper part of the first glass substrate and the right side and the left side of the lower part of the first glass substrate and the second glass substrate are respectively provided with two groups of convection air boxes. Each convection air box corresponds to a 1.1KW fan, the rotating speed is controlled at 1000-1400r/min, a plurality of heating wires are distributed in front of the fan, the fan is used for transmitting heat generated by the heating wires to glass, and each heating wire is 3000W and is used for generating a heat source; the rotating speeds of the fans of the heating areas are all set to be the same; the hot air is blown to the surface of the glass by the convection fan, so that the upper space and the lower space of the glass substrate form gas convection, and the glass and the SGP film are rapidly and uniformly heated (due to the Low radiation characteristic of the Low-E film layer, the radiation heat is blocked by the Low-E film layer by adopting radiation heating, the SGP film is difficult to be fully heated and is completely bonded with the glass, and the bonding effect is poor). When the temperature of the three heating areas is set and the moving speed (the moving speed is the conveying speed) of the glass substrate is set to be 0.8-1.6m/min), the controller automatically adjusts the rotating speed and the heating temperature of the fan according to the temperature, the rotating speed is controlled to be 1000-1400r/min, and the heat generated by the heating wire is uniformly dissipated to the heated first glass substrate and the heated second glass substrate through the air opening of the convection air box.
The temperatures of the three heating zones of the convection rolling furnace are set to be constant and same, namely, the temperatures of the upper part and the lower part of the whole of the first glass substrate and the second glass substrate are set to be the same, and the temperature ranges are set to be 130-160 ℃, so that the signal interference caused by the temperature deviation of the three heating zones is avoided, and the condition that the product is heated unevenly due to the inconsistent heat generated among the convection air boxes is avoided. The first glass substrate and the second glass substrate are heated in a convection mode and then rolled in a rolling area through a press roll, the press roll is an air pressure rubber roll, the upper portion and the lower portion of each glass substrate are respectively provided with the press roll, the rolling pressure is set to be 6-7bar, the rolling temperature is set to be 130-160 ℃, the running speed of each glass substrate is set to be 0.8-1.6m/min, the distance between the two press rolls is adjusted according to the total thickness of the whole laminated glass (the total thickness refers to the sum of the thicknesses of the first glass substrate, the second glass substrate and the SGP film between the first glass substrate and the second glass substrate) after the convection heating, namely the distance between the two press rolls is 3-5mm smaller than the total thickness of the whole laminated glass, for example, when a coated SGP laminated product with the thickness of 10mm and 10mm is produced, the pressure is set to be 6.5bar, the distance between the two press rolls is adjusted to be 17-18mm, the running speed (conveying speed) of the glass substrates is set to be 0.8-1.6m/min, the glass substrate traveling speed (conveying speed) is the same between the heating zone and the rolling zone, and if the glass substrate traveling speed is 1m/min in the heating zone, the glass substrate traveling speed is 1m/min in the rolling zone. Then the furnace is removed within a preset time threshold range, and the tapping temperature is controlled to be 50-60 ℃.
The constant-temperature convection rolling process is adopted, so that unstable heating caused by temperature difference change of the convection rolling furnace is avoided, the SGP film and the glass substrate are fully and uniformly heated, and large-area bubbles are avoided; the problem that glass and SGP cannot be heated uniformly due to isolated radiation heat of a glass substrate plated with a composite film layer (Low-E film) is solved, and production quality is improved.
S7, performing heat preservation on the first glass substrate and the second glass substrate pre-pressed in the step S6, wherein the heat preservation is implemented in the following specific mode: placing the first glass substrate and the second glass substrate pre-pressed in the step S6 into an autoclave for heat preservation, wherein the heat preservation temperature range is set to be 130-140 ℃, and preferably 135-138 ℃; the dwell pressure is set in the range from 12 to 13bar, preferably from 12.5 to 13 bar; setting the heat preservation time to be 90-120min, cooling to be lower than 45 ℃ after finishing heat preservation (preserving heat within a preset time threshold range), and exhausting;
and S8, arranging the first glass substrate, the second glass substrate and the third glass substrate which are subjected to heat preservation in the step S7 at intervals to form a hollow layer, and obtaining the hollow glass.
Further, in order to protect the composite film layer on the second glass substrate, after the step S3 and before the step S4, a protective layer is attached to the surface of the second glass substrate plated with the composite film layer, as shown in fig. 1, the protective layer is preferably a PVC film, the thickness of the PVC film is in the range of 0.03-0.05mm, and then the first glass substrate and the second glass substrate are cleaned and dried. And a PVC film with the thickness of 0.03-0.05mm is adopted to carry out lamination protection on the composite film layer (Low-E surface) so as to prevent the Low-E film from being oxidized or scratched. Or after the step S6, attaching a protective layer to the surface of the second glass substrate after the pre-extrusion furnace, where the protective layer is preferably a PVC film, and the thickness of the PVC film is in the range of 0.03-0.05mm, as shown in fig. 2.
In the embodiment of the invention, in the step S8, specifically, the PVC film on the second glass substrate after the heat preservation in the step S7 is removed, and a third glass substrate is disposed above a side of the second glass substrate away from the first glass substrate, the second glass substrate and the third glass substrate are spaced apart to form a hollow layer, and an aluminum frame and a sealant are disposed in the hollow layer.
The traditional preparation process comprises the steps of coating a film and then tempering, the tempering temperature is high, the requirement on a film to be coated (the film has a heat insulation effect) is high, the film has high-temperature resistance and oxidation resistance, the number of the films is small, and the heat insulation performance of the film is influenced due to certain damage of the film after tempering. The preparation process provided by the application is characterized in that the film is firstly tempered and then coated, the requirement on the film to be coated is low, the film can not pass through high temperature, and the heat insulation performance of the film can not be influenced, so that the requirements on the appearance color and the photo-thermal performance of the project can be met only by considering the design of the film layer structure and the selection of the coating material.
In addition, the traditional preparation process also adopts a method of coating the film after the interlayer, two pieces of glass which pass through the interlayer are put into a coating cavity, and the coating cavity is limited by height and cannot be put into more layers of glass. The preparation process provided by the application comprises the steps of firstly tempering and then coating, only putting a piece of glass to be coated into a coating cavity for coating (for example, the thickness of the current thicker glass is 22mm and 19mm, the thicker glass can be respectively placed into the vacuum magnetron sputtering device in the step S3 for coating the composite film layer), and then laminating the coated glass with other glass, so that the thickness of the laminated coated glass produced by the preparation process provided by the application is improved by more than 1 time compared with the thickness of the glass produced by the conventional method of firstly laminating and then coating.
Example 1
Selecting 19mm substrate glass to prepare 19mm and 19mm coated SGP sandwich product glass, wherein the specific production method comprises the following steps:
s1: firstly, carrying out cutting treatment and edging treatment on selected 19mm glass sheets to obtain a first glass substrate, a second glass substrate and a third glass substrate;
s2: respectively carrying out heat treatment on the first glass substrate, the second glass substrate and the third glass substrate in the step S1 by a physical tempering method, setting the upper furnace temperature to be 685 ℃ and the lower furnace temperature to be 710 ℃, uniformly heating the glass to 625 ℃, cooling the glass to 460 ℃ at a cooling speed of 8 ℃/S by air pressure of 80Pa, and continuously cooling the glass to room temperature by air pressure of 600 Pa;
s3: placing the second glass substrate subjected to heat treatment in the step S2 in a vacuum magnetron sputtering device, and plating a composite film layer on one surface of the second glass substrate, wherein the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E;
s4, cleaning and drying the first glass substrate after the heat treatment in the S2 step and the second glass substrate after the film coating in the S3 step;
s5, covering an SGP film with the thickness of 2.28mm between the first glass substrate and the second glass substrate dried in the step S4, and bonding the first glass substrate and the second glass substrate;
s6, placing the first glass substrate and the second glass substrate which are subjected to the sheet combination in the step S5 into a convection rolling furnace for convection heating, wherein three heating areas are arranged in the convection rolling furnace, the temperature ranges of the three heating areas are all set to be 130 ℃, the running speeds of the glass substrates are all set to be 0.9m/min, the first glass substrate and the second glass substrate are subjected to convection heating and then are rolled by pressing rollers, the rolling pressure is set to be 6.5bar, the distance between the two pressing rollers is 35mm, the glass rolling temperature is 130 ℃, the glass substrates are moved out within a preset time threshold range, the discharging temperature is controlled to be 50-55 ℃, and a protective layer of 0.03mm is attached to the surface, plated with the composite film layer, of the second glass substrate which is subjected to the pre-discharging furnace;
s7, placing the first glass substrate and the second glass substrate pre-pressed in the step S6 into a high-pressure kettle for heat preservation, setting the heat preservation temperature range to be 140 ℃, the pressure maintaining range to be 13bar, setting the heat preservation time to be 120min, cooling to be lower than 45 ℃ after heat preservation is finished, and exhausting;
s8, removing the PVC film on the second glass substrate after the heat preservation in the step S7, arranging a third glass substrate above one side, far away from the first glass substrate, of the second glass substrate, arranging the second glass substrate and the third glass substrate at intervals to form a hollow layer, and arranging an aluminum frame and sealant in the hollow layer to obtain the hollow glass.
Example 2
Selecting 15mm substrate glass to prepare 15mm and 15mm coated SGP sandwich product glass, wherein the specific production method comprises the following steps:
s1: firstly, cutting and edging selected 15mm glass sheets to obtain a first glass substrate, a second glass substrate and a third glass substrate;
s2: respectively carrying out heat treatment on the first glass substrate, the second glass substrate and the third glass substrate in the step S1 by a physical tempering method, specifically: the upper furnace temperature is set to 685 ℃, the lower furnace temperature is set to 710 ℃, the glass is uniformly heated to 620 ℃, then is cooled to 450 ℃ at a cooling speed of 10 ℃/s through the wind pressure of 150Pa, and then is continuously cooled to the room temperature through the wind pressure of 600 Pa;
s3: placing the second glass substrate subjected to heat treatment in the step S2 in a vacuum magnetron sputtering device, and plating a composite film layer on one surface of the second glass substrate, wherein the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E;
s4, adhering a protective layer to the surface of the second glass substrate plated with the composite film layer, and then cleaning and drying the first glass substrate and the second glass substrate;
s5, covering an SGP film with the thickness of 2.28mm between the first glass substrate and the second glass substrate dried in the step S4, and bonding the first glass substrate and the second glass substrate;
s6, placing the first glass substrate and the second glass substrate which are subjected to the sheet combination in the step S5 into a convection rolling furnace for convection heating, wherein three heating areas are arranged in the convection rolling furnace, the temperature ranges of the three heating areas are set to be 138 ℃, the running speeds of the glass substrates are set to be 1.0m/min, the first glass substrate and the second glass substrate are subjected to convection heating and then rolled by pressing rollers, the rolling pressure is set to be 6.5bar, the distance between the two pressing rollers is 27mm, the glass rolling temperature is 138 ℃, the glass substrates are moved out within a preset time threshold range, and the discharging temperature is controlled to be 50-58 ℃;
s7, placing the first glass substrate and the second glass substrate pre-pressed in the step S6 into a high-pressure kettle for heat preservation, setting the heat preservation temperature range to be 138 ℃, the pressure maintaining range to be 12.5bar, setting the heat preservation time to be 120min, cooling to be lower than 45 ℃ after heat preservation is finished, and exhausting;
s8, removing the PVC film on the second glass substrate after the heat preservation in the step S7, arranging a third glass substrate above one side, far away from the first glass substrate, of the second glass substrate, arranging the second glass substrate and the third glass substrate at intervals to form a hollow layer, and arranging an aluminum frame and sealant in the hollow layer to obtain the hollow glass.
In another embodiment of the present invention, an ultra-thick interlayer Low-E glass is further provided, which is obtained according to the above preparation process, as shown in fig. 4, the ultra-thick interlayer Low-E glass includes one or more coated glass assemblies, each coated glass assembly includes a second glass substrate 2 and a first glass substrate 1, which are oppositely disposed from top to bottom, an SGP film 4 is disposed between the second glass substrate 2 and the first glass substrate 1, a surface of the second glass substrate 2, which is away from the first glass substrate 1, is plated with a composite film layer 5, and the composite film layer 5 is a single-silver Low-E, a double-silver Low-E, or a triple-silver Low-E; every two adjacent coated glass components are arranged at intervals to form a hollow layer; and an aluminum frame 7 and sealant 6 are arranged between every two adjacent coated glass components to form a hollow structure. In fig. 4, the Low-E surfaces of both the second glass substrates 2 face the hollow layer.
In another embodiment of the present invention, an ultra-thick interlayer Low-E glass is provided, as shown in fig. 3, which is obtained according to the above manufacturing process, wherein the ultra-thick interlayer Low-E glass includes one or more coated glass assemblies, the coated glass assembly includes a second glass substrate 2 and a first glass substrate 1 that are oppositely disposed up and down, an SGP film 4 is disposed between the second glass substrate 2 and the first glass substrate 1, a surface of the second glass substrate 2 away from the first glass substrate 1 is plated with a composite film layer 5, and the composite film layer 5 is a single-silver Low-E, a double-silver Low-E, or a triple-silver Low-E; the third glass substrate 3 is arranged above one side, far away from the first glass substrate 1, of the second glass substrate 2, the composite film layer 5 is close to the third glass substrate 3, and an aluminum frame 7 and sealant 6 are arranged between the second glass substrate 2 and the third glass substrate 3 to form a hollow structure.
The laminated glass prepared by the preparation process provided by the invention is compared with the laminated glass prepared by the traditional preparation process in performance tests, and the test data of the performance of the laminated glass prepared by the two preparation processes are compared in table 1.
Table 1 comparative table of performance test data of laminated glasses of different thicknesses prepared by two preparation processes
As can be seen from table 1 above, the thickness of the laminated glass prepared by the preparation process provided by the invention is increased by more than 1 time, the rigidity is obviously improved, and the wind pressure resistance, the earthquake resistance and other properties of the glass are also improved; in addition, the capacity of processing the ultra-thick laminated glass is improved, and the performance of the laminated glass prepared by the preparation process provided by the invention reaches the standard in all aspects.
Table 2 comparative table of performance test data of laminated glass with same thickness prepared by two preparation processes
As can be seen from table 2, when the coated laminated glass with the same thickness is prepared, compared with the non-coated laminated glass prepared by the conventional preparation process, the coated laminated glass prepared by the preparation process provided by the invention has the advantages that the running speed of the coated laminated glass in a rolling furnace can be increased, the running speed is increased, the production efficiency can be improved, 10/10 coated laminated glass cannot be produced during the preparation process, and only 10/8 coated laminated glass can be produced. Meanwhile, vacuumizing is not needed, the problems that the cost for producing the coated SGP laminated glass by the traditional preparation process (vacuumizing) is high and batch production cannot be realized are solved, and the cost is further saved.
The preparation process of the ultra-thick interlayer Low-E glass provided by the invention adopts a production process of firstly toughening and then coating, and then laminating, the composite film layer (Low-E film) does not need to be heated at high temperature through toughening, the film layer structure is designed, and the coating material is selected, only the requirements of the appearance color and the photo-thermal performance of the project need to be met, the manufactured Low-E film has various colors, good uniformity, excellent optical performance and good glass flatness, and the product can be used for high-end glass curtain wall projects; the thickness of the glass substrate is not limited by the height of a coating cavity of the vacuum magnetron sputtering device, so that the thickness of the produced laminated coated glass is improved by more than 1 time compared with the thickness of the glass produced by the conventional method of firstly laminating and then coating, and the rigidity, wind pressure resistance, shock resistance and other properties of the glass are greatly improved; meanwhile, a constant-temperature convection rolling process is adopted, the condition that the SGP film cannot be uniformly heated due to the fact that heating heat of a conventional radiation furnace is isolated by a Low-E film layer is avoided, the SGP film and the glass substrate are sufficiently and uniformly heated due to convection heating, and the production quality and the production efficiency are improved; the vacuum-pumping-free vacuum pump can meet the requirement of batch production, the vacuum pumping is not needed, the production cost is greatly reduced, and the production efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. The preparation process of the ultra-thick interlayer Low-E glass is characterized by comprising the following steps of:
s1: firstly, cutting and edging selected glass sheets to obtain a first glass substrate, a second glass substrate and a third glass substrate;
s2: performing heat treatment on the first glass substrate, the second glass substrate and the third glass substrate in the step S1 by a physical tempering method, respectively;
s3: placing the second glass substrate subjected to heat treatment in the step S2 in a vacuum magnetron sputtering device, and plating a composite film layer on one surface of the second glass substrate, wherein the composite film layer is single-silver Low-E, double-silver Low-E or triple-silver Low-E;
s4, cleaning and drying the first glass substrate after the heat treatment in the S2 step and the second glass substrate after the film coating in the S3 step;
s5, coating an SGP film between the first glass substrate and the second glass substrate dried in the step S4 to bond the first glass substrate and the second glass substrate;
s6, prepressing the first glass substrate and the second glass substrate which are laminated in the step S5 by adopting a constant-temperature convection process;
s7, insulating the first glass substrate and the second glass substrate pre-pressed in the step S6;
s8, arranging the first glass substrate, the second glass substrate and the third glass substrate which are subjected to heat preservation in the step S7 at intervals to form hollow layers, and obtaining the hollow glass
In step S6, the constant temperature convection process is as follows: and (2) placing the first glass substrate and the second glass substrate which are laminated in the step S5 into a convection rolling furnace for convection heating, wherein the convection rolling furnace comprises a plurality of heating areas and a rolling area which are sequentially arranged, the temperature range of each heating area is set to 130-160 ℃, the running speed of each glass substrate is set to 0.8-1.6m/min, the first glass substrate and the second glass substrate are subjected to convection heating and then are rolled by pressing rollers, the rolling pressure is set to 6-7bar, the distance between the two pressing rollers is 3-5mm smaller than the total thickness of the first glass substrate and the second glass substrate, the rolling temperature of the glass is set to 130-160 ℃, the glass substrates are moved out within a preset time threshold range, and the discharging temperature is controlled to 50-60 ℃.
2. The process for preparing ultra-thick interlayer Low-E glass according to claim 1, wherein after the step S3, a protective layer is attached to the surface of the second glass substrate plated with the composite film layer, the thickness of the protective layer is in the range of 0.03-0.05mm, and then the first glass substrate and the second glass substrate are cleaned and dried, or
And after the step of S6, attaching a protective layer to the surface of the second glass substrate plated with the composite film layer after the pre-extrusion furnace, wherein the thickness of the protective layer is 0.03-0.05 mm.
3. The process of claim 2, wherein the protective layer is a PVC film.
4. The process for preparing ultra-thick interlayer Low-E glass according to claim 2, wherein in the step S8, the PVC film on the second glass substrate after the heat preservation in the step S7 is removed, a third glass substrate is arranged above one side of the second glass substrate far away from the first glass substrate, the second glass substrate and the third glass substrate are arranged at intervals to form a hollow layer, and an aluminum frame and a sealant are arranged in the hollow layer.
5. The process for preparing ultra-thick interlayer Low-E glass according to claim 1, wherein in the step S2, the heat treatment process is as follows: the furnace temperature is controlled at 685-710 ℃, the first glass substrate, the second glass substrate and the third glass substrate are uniformly heated and controlled at 610-630 ℃, and then the glass substrates are rapidly and uniformly cooled within a preset time threshold range.
6. The process for preparing ultra-thick interlayer Low-E glass according to claim 1, wherein in the step S3, each film layer in the composite film layers is plated on one surface of the second glass substrate in sequence; in step S4, the first glass substrate and the second glass substrate coated with the composite film layer in step 3 are cleaned with deionized pure water; in the step S5, the thickness of the SGP film is set to 0.76 to 2.28 mm.
7. The preparation process of the ultra-thick interlayer Low-E glass as claimed in claim 1, wherein in the step S7, the first glass substrate and the second glass substrate pre-pressed in the step S6 are placed in an autoclave for heat preservation, the heat preservation temperature range is set to 130-.
8. The ultra-thick interlayer Low-E glass is characterized by being prepared according to the preparation process of any one of claims 1 to 7, and comprising one or more coated glass components, wherein the coated glass components comprise a second glass substrate (2) and a first glass substrate (1) which are arranged in an up-down opposite manner, an SGP (glass Standard) film) is arranged between the second glass substrate (2) and the first glass substrate (1), a surface, far away from the first glass substrate (1), of the second glass substrate (2) is plated with a composite film layer (5), and the composite film layer (5) is single-silver Low-E, double-silver Low-E or triple-silver Low-E; every two adjacent coated glass assemblies are arranged at intervals to form a hollow layer.
9. The ultra-thick interlayer Low-E glass is characterized by being obtained by the preparation process according to any one of claims 1 to 7, and comprises one or more coated glass assemblies, wherein each coated glass assembly comprises a second glass substrate (2) and a first glass substrate (1) which are arranged in an up-down opposite mode, an SGP (glass Standard protocol) film (4) is arranged between the second glass substrate (2) and the first glass substrate (1), a composite film layer (5) is plated on one surface, far away from the first glass substrate (1), of the second glass substrate (2), and the composite film layer (5) is single-silver Low-E, double-silver Low-E or triple-silver Low-E; and a third glass substrate (3) is arranged above one side of the second glass substrate (2) far away from the first glass substrate (1), and the second glass substrate (2) and the third glass substrate (3) are arranged at intervals to form a hollow layer.
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| CN113233792A (en) * | 2021-03-26 | 2021-08-10 | 吴江南玻华东工程玻璃有限公司 | Method for producing interlayer curved glass |
| CN113352730A (en) * | 2021-04-25 | 2021-09-07 | 陈练旭 | Processing method of super-thick SGP laminated glass |
| CN113735465A (en) * | 2021-06-23 | 2021-12-03 | 天津耀皮工程玻璃有限公司 | Double-interlayer film-coated hollow vehicle glass and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202626040U (en) * | 2012-06-21 | 2012-12-26 | 宁波江花玻璃科技有限公司 | Three-glass two-cavity interlayer hollow glass |
| CN103613292A (en) * | 2013-12-15 | 2014-03-05 | 宁波江花玻璃科技有限公司 | LOW-E (LOW Emission) energy-saving laminated safety glass |
| CN203547419U (en) * | 2013-07-15 | 2014-04-16 | 天津南玻节能玻璃有限公司 | Novel security energy-saving hollow glass |
| CN203602502U (en) * | 2013-12-15 | 2014-05-21 | 宁波江花玻璃科技有限公司 | LOW-E (low-emission) energy-saving sandwich safety glass |
| CN204894680U (en) * | 2015-08-12 | 2015-12-23 | 浙江中哲玻璃有限公司 | Ultra -thin shellproof cavity glass |
| CN108481883A (en) * | 2018-02-08 | 2018-09-04 | 信义玻璃工程（东莞）有限公司 | Multistoried building hollow glass and its manufacturing method |
| CN109591399A (en) * | 2018-12-28 | 2019-04-09 | 江阴沐祥节能装饰工程有限公司 | A kind of laminated glass and preparation method thereof |
| CN109912241A (en) * | 2017-12-12 | 2019-06-21 | 任洋 | A kind of preparation method of Low emissivity Low-E laminated glass |
-
2019
- 2019-09-26 CN CN201910915330.6A patent/CN110668711B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202626040U (en) * | 2012-06-21 | 2012-12-26 | 宁波江花玻璃科技有限公司 | Three-glass two-cavity interlayer hollow glass |
| CN203547419U (en) * | 2013-07-15 | 2014-04-16 | 天津南玻节能玻璃有限公司 | Novel security energy-saving hollow glass |
| CN103613292A (en) * | 2013-12-15 | 2014-03-05 | 宁波江花玻璃科技有限公司 | LOW-E (LOW Emission) energy-saving laminated safety glass |
| CN203602502U (en) * | 2013-12-15 | 2014-05-21 | 宁波江花玻璃科技有限公司 | LOW-E (low-emission) energy-saving sandwich safety glass |
| CN204894680U (en) * | 2015-08-12 | 2015-12-23 | 浙江中哲玻璃有限公司 | Ultra -thin shellproof cavity glass |
| CN109912241A (en) * | 2017-12-12 | 2019-06-21 | 任洋 | A kind of preparation method of Low emissivity Low-E laminated glass |
| CN108481883A (en) * | 2018-02-08 | 2018-09-04 | 信义玻璃工程（东莞）有限公司 | Multistoried building hollow glass and its manufacturing method |
| CN109591399A (en) * | 2018-12-28 | 2019-04-09 | 江阴沐祥节能装饰工程有限公司 | A kind of laminated glass and preparation method thereof |
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