CN110588105A - Thickened laminated glass and manufacturing method thereof - Google Patents
Thickened laminated glass and manufacturing method thereof Download PDFInfo
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- CN110588105A CN110588105A CN201910858327.5A CN201910858327A CN110588105A CN 110588105 A CN110588105 A CN 110588105A CN 201910858327 A CN201910858327 A CN 201910858327A CN 110588105 A CN110588105 A CN 110588105A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Abstract
The invention belongs to the technical field of glass manufacturing methods, and particularly relates to thickened laminated glass and a manufacturing method thereof. The thickened sandwich glass comprises a first glass substrate and a second glass substrate, wherein an adhesive layer is clamped between the first glass substrate and the second glass substrate, the adhesive layer comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28-3.8 mm. The manufacturing method comprises the steps of providing a first glass substrate, a second glass substrate and a plurality of films; cleaning and drying the first glass substrate and the second glass substrate; laminating; carrying out primary pressure treatment; and (5) performing high-temperature and high-pressure molding treatment to obtain the finished thickened laminated glass. The thickness of the bonding layer of the prepared thickened laminated glass is higher than the maximum interlayer thickness of the conventional laminated glass on the market, the interlayer thickness of the laminated glass is thickened, and the bonding firmness, the heat insulation, the noise insulation and the impact resistance of the laminated glass are improved, so that the application range of the laminated glass is effectively widened.
Description
Technical Field
The invention belongs to the technical field of glass manufacturing methods, and particularly relates to thickened laminated glass and a manufacturing method thereof.
Background
The laminated glass is a composite glass product which is formed by two or more pieces of glass, wherein one or more layers of organic polymer intermediate films are sandwiched between the two or more pieces of glass, and the glass and the intermediate films are permanently bonded into a whole after special process treatment. In general, laminated glass is formed by sandwiching a PVB (Polyvinyl Butyral) or EVA (Ethylene-vinyl acetate copolymer) film or the like between two layers of glass and performing hot pressing treatment in an autoclave, in which the PVA or EVA is melted by heat and flows to fill a gap between the two layers of glass, and the two layers of glass are firmly bonded together after cooling.
At present, the thickness specifications of films for manufacturing laminated glass in the market are 0.38mm, 0.76mm, 1.14mm and 1.52mm, and there is no process in the market for a while to laminate films with different thickness specifications to manufacture the laminated glass, that is, the maximum interlayer thickness of the laminated glass in the market can only reach 1.52mm, but cannot be made thicker, so that the manufactured laminated glass cannot further improve the bonding firmness, the impact resistance reliability and the temperature and noise insulation performance, and the use of the laminated glass in some special application environments is limited.
Disclosure of Invention
The invention aims to provide thickened laminated glass and a manufacturing method thereof, and aims to solve the technical problem that the performance of the laminated glass cannot be effectively improved due to the limited interlayer thickness of the laminated glass in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the thickened laminated glass comprises a first glass substrate and a second glass substrate which are oppositely arranged, wherein an adhesive layer is arranged between the first glass substrate and the second glass substrate in a clamping mode, the adhesive layer comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28 mm-3.8 mm.
Optionally, the film has a thickness of 0.38mm, 0.76mm, 1.14mm, or 1.52 mm.
Optionally, the film is a transparent film or a colored film.
Optionally, the film is a PVB film, an EVA film, or an SGB film.
Optionally, the first glass substrate has a thickness of 2.7mm to 8mm, and the first glass substrate has a cross-sectional size of (300mm to 2440mm) × (300mm to 2440 mm); the second glass substrate has a thickness of 2.7mm to 8mm, and a cross-sectional size of (300mm to 2440mm) × (300mm to 2440 mm).
Optionally, the adhesive layer includes a first film, a second film, a third film, a fourth film and a fifth film, and the thicknesses of the first film, the second film, the third film, the fourth film and the fifth film are all 0.76 mm.
One or more technical schemes in the thickened laminated glass provided by the invention have at least one of the following technical effects: the adhesive layer is clamped between the first glass substrate and the second glass substrate, and is formed by a plurality of films which are sequentially stacked, the thickness of the adhesive layer can reach 2.2.8-3.8 mm, and the thickness of the adhesive layer is higher than the maximum interlayer thickness (1.52mm) of the existing laminated glass on the market, so that the interlayer thickness of the laminated glass is further thickened, the adhesive layer with larger thickness can better improve the heat insulation, noise insulation and impact resistance of the laminated glass while improving the bonding firmness between the first glass substrate and the second glass substrate, so that the thickened laminated glass can better resist various impacts under extreme environmental conditions, further broadens the application range of the laminated glass, and can meet larger market demands.
The other technical scheme of the invention is as follows: a method for making the above-described thickened laminated glass, comprising the steps of:
s10, providing a first glass substrate, a second glass substrate and a plurality of films;
s20, cleaning the first glass substrate and the second glass substrate, and drying the first glass substrate and the second glass substrate;
s30, sequentially laminating and clamping a plurality of films between the first glass substrate and the second glass substrate to obtain laminated glass;
s40, carrying out primary pressing treatment on the laminated glass to obtain primary pressed laminated glass;
and S50, carrying out high-temperature and high-pressure forming and pressing treatment on the initial-pressing laminated glass to obtain the finished product of the thickened laminated glass.
Further, in step S40, the preliminary pressure processing includes a first temperature raising stage, a second temperature raising stage, a third temperature raising stage, and a temperature lowering stage, where the temperature of the first temperature raising stage is 70 to 90 ℃, the temperature of the second temperature raising stage is 140 to 180 ℃, the temperature of the third temperature raising stage is 160 to 200 ℃, and the temperature of the temperature lowering stage is 140 to 80 ℃.
Further, in step S40, the laminated glass is subjected to preliminary press treatment by using a hot press roll, and the pressing speed of the hot press roll is 1.0m/min to 4.0m/min, and the pressing pressure of the hot press roll is 0.5MPa to 2.5 MPa.
Further, in step S50, the high-temperature and high-pressure forming and pressing process is performed in a sealed high-pressure device, and the high-temperature and high-pressure forming and pressing process includes a first temperature-raising and pressure-raising stage, a second temperature-raising and pressure-raising stage, a third temperature-raising and pressure-raising stage, and a temperature-lowering and pressure-lowering stage;
the temperature of the first temperature raising and pressure raising stage is 90-110 ℃, the pressure is 0.45-0.55 MPa, and the pressing time is 3-8 min;
the temperature of the second temperature raising and pressure raising stage is 115-125 ℃, the pressure is 0.9-1.1 MPa, and the pressing time is 3-8 min;
the temperature of the third temperature and pressure raising stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, and the pressing time is 30-60 min;
the temperature of the temperature reduction and pressure reduction stage is 35-45 ℃, and the pressing time is continued until the high-pressure equipment is completely decompressed.
According to the manufacturing method for processing the thickened laminated glass, during laminating, the plurality of film laminations are clamped between the first glass substrate and the second glass substrate to manufacture the laminated glass, and then the laminated glass is subjected to initial pressing and high-temperature and high-pressure forming pressing treatment to obtain the thickened laminated glass.
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 embodiments or the prior art descriptions will be briefly described 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 inventive exercise.
Fig. 1 is a schematic structural diagram of a thickened laminated glass according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an adhesive layer of a thickened laminated glass according to a preferred embodiment of the present invention;
FIG. 3 is a first flowchart of a method for making a thickened laminated glass according to another embodiment of the present invention;
fig. 4 is a second flowchart of a method for making a thickened laminated glass according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-first glass substrate 20-second glass substrate 30-adhesive layer
31-first film 32-second film 33-third film
34-fourth film 35-fifth film.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-4 are exemplary and intended to be used for explanation of the invention, and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a thickened laminated glass, which includes a first glass substrate 10 and a second glass substrate 20 that are disposed opposite to each other, an adhesive layer 30 is interposed between the first glass substrate 10 and the second glass substrate 20, the adhesive layer 30 includes a plurality of films that are sequentially stacked, and the thickness of the adhesive layer 30 formed by stacking is 2.28mm to 3.8 mm.
The thickened laminated glass provided by the embodiment of the invention is characterized in that the adhesive layer 30 is arranged between the first glass substrate 10 and the second glass substrate 20 in a clamping manner, the adhesive layer 30 is formed by a plurality of films which are sequentially stacked, the thickness of the adhesive layer 30 can reach 2.2-3.8 mm, the thickness of the adhesive layer 30 is higher than the maximum interlayer thickness (1.52mm) of the laminated glass in the market, so that the interlayer thickness of the laminated glass is further thickened, the adhesive layer 30 with larger thickness can better improve the heat insulation, noise insulation and impact resistance of the laminated glass while improving the bonding firmness between the first glass substrate 10 and the second glass substrate 20, and because the thickness of the adhesive layer 30 between the first glass substrate 10 and the second glass substrate 20 is thicker, when the glass is broken by impact, fragments of the glass substrates can be bonded on the adhesive layer 30, thereby avoiding the damage to the surrounding things caused by the scattered fragments, therefore, the thickened laminated glass can better resist various impacts under extreme environmental conditions, further broadens the application range of the laminated glass, can meet larger market demands, can be suitable for the fields of show windows, showcases, art, buildings and the like, and has wide development potential and market space.
In the present embodiment, the thickness of the film is 0.38mm, 0.76mm, 1.14mm or 1.52mm, that is, the adhesive layer 30 of the present embodiment is formed by laminating films with common thickness specifications on the market at present, the raw materials of the films are easy to obtain, and films with special thickness specifications for processing the thickened laminated glass of the present invention do not need to be customized, so that the market compatibility is stronger, and the market can be better matched.
It should be noted that, because the adhesive layer 30 of the present embodiment is formed by laminating films of the existing specification, the thickness of the adhesive layer 30 is in a range of 2.28mm to 3.8mm, and the thickness value thereof is in a multiple relation with 0.38, specifically, the thickness of the adhesive layer 30 is 6 to 10 times, specifically 6 times, 7 times, 8 times, 9 times or 10 times, of the thickness of the film of 0.38mm, that is, the thickness of the adhesive layer 30 may be specifically 2.28mm, 2.66mm, 3.04mm, 3.42mm or 3.8mm, during production, the adhesive layer 30 with an appropriate thickness may be reasonably selected according to different use requirements, and the specific thickness value thereof is not limited uniquely.
In another embodiment of the present invention, the films are transparent films or colored films, that is, the films stacked to form the adhesive layer 30 may be transparent films or colored films, and the transparent films and the colored films may be mixed, so that the thickened laminated glass may be colorless and transparent, or have different color effects, and the variety is richer.
In another embodiment of the present invention, the film is a PVB film, an EVA film, or an SGB film, that is, the film for manufacturing the adhesive layer 30 may be a film commonly used in the market for manufacturing laminated glass, and a special film does not need to be customized, so that raw materials are easily available, which is beneficial to reducing the production cost.
In another embodiment of the present invention, as illustrated in fig. 1, the thickness of the first glass substrate 10 is preferably 2.7mm to 8mm, and the size of the cross section of the first glass substrate 10 is preferably (300mm to 2440mm) × (300mm to 2440 mm); the thickness of the second glass substrate 20 is preferably 2.7mm to 8mm, and the size of the cross section of the second glass substrate 20 is preferably (300mm to 2440mm) × (300mm to 2440 mm).
Specifically, in the present embodiment, the thickness of the first glass substrate 10 may be 2.7mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm, or the like, and correspondingly, the thickness of the second glass substrate 20 may be 2.7mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, or 8.0mm, or the like, and further, it is understood that when the thickness of the first glass substrate 10 and the second glass substrate 20 bonded to each other is relatively thick, the thickness of the corresponding adhesive layer 30 may be set relatively thin, whereas when the thickness of the first glass substrate 10 and the second glass substrate 20 bonded to each other is relatively thin.
More specifically, in the present embodiment, the size of the first glass substrate 10 and the second glass substrate 20 may be any size within the above range, and is not limited herein based on the size requirement under the specific use condition. In addition, it is understood that the size of the first glass substrate 10 and the second glass substrate 20 should be consistent in most cases, and few special cases may be different.
In another embodiment of the present invention, the first glass substrate 10 and the second glass substrate 20 are preferably float white glass substrates or float ultra white substrates, and because the float glass is made by floating glass on the surface of molten tin, the glass has good flatness, no water wave and is not easy to lose shape; secondly, because the float glass mostly uses the ore quartz sand as the raw material, and the raw material is good, the produced glass is relatively pure and has higher transparency, and other defects such as glass furuncle and bubbles can not exist at the same time; in addition, the float glass has the advantages of heavy weight, compact structure, smooth hand feeling, larger specific gravity per square meter than flat glass, good cutting performance and difficult breakage. In addition, the white glass and the ultra-white glass substrate have good light transmission performance, have the characteristics of being crystal clear, high-grade and elegant, and can effectively improve the light transmission performance and the aesthetic property of the processed glass finished product. Therefore, the thickened laminated glass of the present embodiment preferably employs a float white glass substrate and a float super white substrate as the first glass substrate 10 and the second glass substrate 20 to improve the overall performance of the glass product.
In another embodiment of the present invention, as shown in fig. 1 and 2, a preferred embodiment of the above-mentioned thickened laminated glass is provided, in this embodiment, the adhesive layer 30 specifically includes a first film 31, a second film 32, a third film 33, a fourth film 34 and a fifth film 35 which are sequentially stacked, and the thicknesses of the first film 31, the second film 32, the third film 33, the fourth film 34 and the fifth film 35 are all 0.76mm, and the thickness of the adhesive layer 30 is 3.8mm, at this time, the thickness of the adhesive layer 30 inside the manufactured thickened laminated glass is the largest, and excellent adhesion stability and impact resistance are exhibited. As shown in the following table, the performance test data of the thickened laminated glass of the present embodiment in the quality inspection is shown, wherein the thickness of each of the first glass substrate 10 and the second glass substrate 20 is 5.0 mm:
table 1 performance test data for thickened laminated glass
Note: in the table, "√" indicates that the glass did not break after impact and "×" indicates that the glass broken after impact; "state description" means the state of the thickened laminated glass after the test, in which the glass breakage is not described as "object breakage", and the glass breakage but the broken pieces are bonded to the adhesive layer 30 without scattering is described as "safety breakage"; the test value of the thickness of the adhesive layer 30 being less than 3.8mm is because the thick laminated glass needs to be subjected to a high-temperature pressing process during the manufacturing process, and therefore, the thickness value is reduced by a very small amount, and the reduction value is within the production tolerance range.
In another embodiment of the present invention, as shown in fig. 3 and 4, there is also provided a method for manufacturing the above-described thickened laminated glass, comprising the steps of:
and S10, providing the first glass substrate 10, the second glass substrate 20 and a plurality of films.
S20, cleaning the first glass substrate 10 and the second glass substrate 20, and cleaning the impurities and dirt on the surfaces of the first glass substrate 10 and the second glass substrate 20, specifically, cleaning the surfaces by using a special cleaning machine, or performing spray cleaning by using a high-pressure water gun or the like; after the cleaning is completed, the moisture on the surfaces of the first glass substrate 10 and the second glass substrate 20 is wiped and dried, so that the first glass substrate 10 and the second glass substrate 20 which are dry and clean are obtained.
And S30, sequentially laminating and clamping a plurality of films between the first glass substrate 10 and the second glass substrate 20, namely, carrying out laminating treatment on the first glass substrate, the second glass substrate and the films to obtain laminated glass. During laminating, the films are naturally paved between the first glass substrate 10 and the second glass substrate 20 layer by layer, and the peripheral edges of the first glass substrate 10 and the second glass substrate 20 are aligned, so that the substrates are prevented from being staggered; specifically, the sheet combining step is completed in a special sheet combining chamber, so that the first glass substrate 10 and the second glass substrate 20 are prevented from being secondarily polluted in the sheet combining process, and external impurities are prevented from being brought into the adhesive layer 30.
S40, carrying out primary pressing treatment on the laminated glass to obtain primary pressed laminated glass; specifically, in this embodiment, the laminated glass is subjected to preliminary pressing by using a flat pressing method, specifically, a roll press and a flat press may be used to perform preliminary pressing, and after the preliminary pressing is removed, the first glass substrate 10, the adhesive layer 30, and the second glass substrate 20 are bonded into a whole.
In this step, the thermal pressing roller of the roll press or the thermal pressing head of the flat press presses the laminated glass, and the thermal pressing roller or the thermal pressing head can generate heat while pressing, and the heat is conducted to the adhesive layer 30 to melt the film, thereby bonding the first glass substrate 10 and the second glass substrate 20 together. Specifically, the preliminary pressing step is performed in an operating room with a temperature of 18 ℃ to 28 ℃ and a humidity of 18% to 30% to ensure smooth preliminary pressing adhesion.
S50, carrying out high-temperature and high-pressure forming and pressing treatment on the initial laminated glass to obtain a finished product of thickened laminated glass; specifically, in the present embodiment, a high-temperature and high-pressure apparatus is used to perform a high-temperature and high-pressure molding pressing process on the preliminary-pressed laminated glass, and after the processing, each film in the adhesive layer 30 is completely melted, so as to firmly adhere the first glass substrate 10 and the second glass substrate 20 together, and ensure that the finished thickened laminated glass has good transparency and does not have local color difference.
In this embodiment, in the step S40, the preliminary pressure processing includes a first temperature raising stage, a second temperature raising stage, a third temperature raising stage and a temperature lowering stage, specifically, the temperature of the first temperature raising stage is 70-90 ℃, the temperature of the second temperature raising stage is 140-180 ℃, the temperature of the third temperature raising stage is 160-200 ℃, and the temperature of the temperature lowering stage is 140-80 ℃. In this way, the purpose of performing the preliminary pressing treatment on the laminated glass is to discharge the gas between the first glass substrate 10 and the second glass substrate 20, thereby avoiding bubbles after the glass is molded; so, the in-process hot-pressing roller that bonds at the initial pressure or the heating of hot pressing head in the pressfitting in-process with the mode of progressively rising temperature, the temperature risees gradually and slowly melts adhesive linkage 30, compare directly set the temperature to high temperature, the slow intensification mode can avoid appearing because of laminated glass's side seals in advance all around, and the condition that leads to the unable extrusion of adhesive linkage 30 central gas to appear, thereby can prevent to produce the bubble, in addition, the temperature can slowly rise to higher stage, the film is whole to be melted during can, thereby avoid appearing the bubble because of the film melts not in place.
Further, in step S40, the laminated glass is subjected to preliminary pressing by using a hot press roll, and the pressing speed and the pressing pressure of the hot press roll are adjusted according to the thicknesses of the first glass substrate 10, the adhesive layer 30 and the second glass substrate 20, preferably, the pressing speed of the hot press roll is 1.0m/min to 4.0m/min, specifically, 1.0m/min, 1.5m/min, 2.0m/min, 2.5m/min, 3.0m/min, 3.5m/min or 4.0m/min, the pressing pressure is preferably 0.5MPa to 2.5MPa, specifically, 0.5MPa, 1.0MPa, 1.5MPa, 2.0MPa or 2.5MPa, and the specific pressing speed and the pressing pressure are adjusted according to the thickness of the glass and the pressing effect of the preliminary pressing process, which is not limited herein.
In this embodiment, in step S50, the high-temperature and high-pressure molding and pressing process is performed in a sealed high-pressure apparatus, such as an autoclave, and the high-temperature and high-pressure molding and pressing process includes a first temperature-raising and pressure-raising stage, a second temperature-raising and pressure-raising stage, a third temperature-raising and pressure-raising stage, and a temperature-lowering and pressure-lowering stage; wherein the temperature of the first temperature raising and pressure boosting stage is 90-110 ℃, the pressure is 0.45-0.55 MPa, the pressing time is 3-8 min, the temperature of the second temperature raising and pressure boosting stage is 115-125 ℃, the pressure is 0.9-1.1 MPa, the pressing time is 3-8 min, the temperature of the third temperature raising and pressure boosting stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, the pressing time is 30-60 min, the temperature of the temperature lowering and pressure lowering stage is 35-45 ℃, and the pressing time is continued until high-pressure equipment such as an autoclave and the like are completely decompressed.
Because the film of the internal adhesive layer 30 of the laminated glass is not completely melted after the initial pressing treatment, the initially pressed laminated glass after the initial pressing is not completely transparent, and the peripheral sides of the glass are not completely sealed, i.e. the adhesive layer 30, the first glass substrate 10 and the second glass substrate 20 of the initially pressed laminated glass cannot achieve the effect of complete adhesion, therefore, the initially pressed laminated glass after the initial pressing needs to be sent into a high-pressure device for continuous heating and pressurizing high-pressure pressing treatment, all the films of the adhesive layer 30 can be completely melted, and the first glass substrate 10 and the second glass substrate 20 are bonded under the extrusion of air pressure. Therefore, in the high-temperature and high-pressure forming and pressing process, the temperature and the air pressure in the high-pressure equipment are pressed in a gradually rising manner, compared with the manner that the air pressure is directly filled (namely, the pressure in the high-pressure equipment is directly raised to the third temperature rise and pressure rise stage), the manner that the pressure slowly rises can avoid the condition that bubbles are generated in the center of the adhesive layer 30 due to the fact that the peripheral side portions of the laminated glass are sealed in advance, in addition, in the pressing process, the highest temperature and the maximum pressing pressure in the equipment cannot be set too high, overflow from the middle of the first glass substrate 10 and the second glass substrate 20 after the adhesive layer 30 is melted is avoided, similarly, the pressing temperature and the pressing pressure cannot be set too low, and the films of the adhesive layer 30 cannot be completely melted possibly, so that the adhesive effect and the transparency of a glass finished product.
In the embodiment, the thickened laminated glass produced by the steps can basically reach 100% of transparency, and the color film is selected without local color difference.
In another embodiment of the present invention, as shown in fig. 4, after step S50, step S60 is further included, and in step S60, the off-line quality inspection is performed on the finished product of the thickened laminated glass, so as to inspect various properties of the glass, such as impact resistance, thermal insulation, noise insulation, light transmittance, heat resistance, moisture resistance, radiation resistance, etc., to ensure that the finished glass meets various use requirements of users.
According to the manufacturing method for processing the thickened laminated glass, during lamination, a plurality of film laminations are clamped between the first glass substrate 10 and the second glass substrate 20 to manufacture the laminated glass, and then the laminated glass is subjected to initial pressing and high-temperature and high-pressure forming pressing treatment to obtain the thickened laminated glass.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a bodiness laminated glass, includes relative first glass substrate and the second glass substrate that sets up which characterized in that: an adhesive layer is clamped between the first glass substrate and the second glass substrate and comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28-3.8 mm.
2. A thickened laminated glass according to claim 1, characterised in that: the film has a thickness of 0.38mm, 0.76mm, 1.14mm, or 1.52 mm.
3. A thickened laminated glass according to claim 1, characterised in that: the film is transparent film or colored film.
4. A thickened laminated glass according to claim 1, characterised in that: the film is a PVB film, an EVA film or an SGB film.
5. A thickened laminated glass according to claim 1, characterised in that: the thickness of the first glass substrate is 2.7 mm-8 mm, and the size of the cross section of the first glass substrate is (300 mm-2440 mm) × (300 mm-2440 mm); the thickness of the second glass substrate is 2.7 mm-8 mm, and the size of the cross section of the second glass substrate is (300 mm-2440 mm) × (300 mm-2440 mm).
6. A thickened laminated glass according to any one of claims 1 to 5, characterised in that: the adhesive linkage includes first film, second film, third film, fourth film and fifth film, just first film the second film the third film the fourth film with the thickness of fifth film is 0.76 mm.
7. A method for making a thickened laminated glass as claimed in any one of claims 1 to 6, characterised by the steps of:
s10, providing a first glass substrate, a second glass substrate and a plurality of films;
s20, cleaning the first glass substrate and the second glass substrate, and drying the first glass substrate and the second glass substrate;
s30, sequentially laminating and clamping a plurality of films between the first glass substrate and the second glass substrate to obtain laminated glass;
s40, carrying out primary pressing treatment on the laminated glass to obtain primary pressed laminated glass;
and S50, carrying out high-temperature and high-pressure forming and pressing treatment on the initial-pressing laminated glass to obtain the finished product of the thickened laminated glass.
8. The method of manufacturing a thickened laminated glass according to claim 7, wherein the preliminary pressing process includes a first temperature rise stage, a second temperature rise stage, a third temperature rise stage and a temperature drop stage in step S40, the temperature of the first temperature rise stage is 70 ℃ to 90 ℃, the temperature of the second temperature rise stage is 140 ℃ to 180 ℃, the temperature of the third temperature rise stage is 160 ℃ to 200 ℃, and the temperature of the temperature drop stage is 140 ℃ to 80 ℃.
9. The method of manufacturing a thickened laminated glass according to claim 7, wherein in step S40, the laminated glass is subjected to preliminary press treatment by a hot press roll, the pressing speed of the hot press roll is 1.0m/min to 4.0m/min, and the pressing pressure of the hot press roll is 0.5MPa to 2.5 MPa.
10. The method for manufacturing a thickened laminated glass according to claim 7, wherein in the step S50, the high-temperature high-pressure forming and pressing process is performed in a sealed high-pressure device, and the high-temperature high-pressure forming and pressing process includes a first temperature and pressure raising stage, a second temperature and pressure raising stage, a third temperature and pressure raising stage and a temperature and pressure reducing stage;
the temperature of the first temperature raising and pressure raising stage is 90-110 ℃, the pressure is 0.45-0.55 MPa, and the pressing time is 3-8 min;
the temperature of the second temperature raising and pressure raising stage is 115-125 ℃, the pressure is 0.9-1.1 MPa, and the pressing time is 3-8 min;
the temperature of the third temperature and pressure raising stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, and the pressing time is 30-60 min;
the temperature of the temperature reduction and pressure reduction stage is 35-45 ℃, and the pressing time is continued until the high-pressure equipment is completely decompressed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847906A (en) * | 2020-07-20 | 2020-10-30 | 信义玻璃(天津)有限公司 | Laminated glass and preparation method thereof |
| CN112192927A (en) * | 2020-10-15 | 2021-01-08 | 洪雅竹元科技有限公司 | Bamboo-sandwiched paper glass processing technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847906A (en) * | 2020-07-20 | 2020-10-30 | 信义玻璃(天津)有限公司 | Laminated glass and preparation method thereof |
| CN112192927A (en) * | 2020-10-15 | 2021-01-08 | 洪雅竹元科技有限公司 | Bamboo-sandwiched paper glass processing technology |
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