CN110588105B - Thickened laminated glass and manufacturing method thereof - Google Patents
Thickened laminated glass and manufacturing method thereof Download PDFInfo
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- CN110588105B CN110588105B CN201910858327.5A CN201910858327A CN110588105B CN 110588105 B CN110588105 B CN 110588105B CN 201910858327 A CN201910858327 A CN 201910858327A CN 110588105 B CN110588105 B CN 110588105B
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- 239000005340 laminated glass Substances 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 149
- 239000000758 substrate Substances 0.000 claims abstract description 125
- 239000012790 adhesive layer Substances 0.000 claims abstract description 34
- 239000010410 layer Substances 0.000 claims abstract description 26
- 238000011282 treatment Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000007731 hot pressing Methods 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 5
- 239000005329 float glass Substances 0.000 description 4
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010017553 Furuncle Diseases 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
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 laminated glass comprises a first glass substrate and a second glass substrate, wherein an adhesive layer is arranged 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 the first and second glass substrates and drying; combining sheets; primary pressure treatment; and (5) carrying out high-temperature and high-pressure forming treatment to obtain the finished thickened laminated glass. The thickness of the bonding layer of the thickened laminated glass is higher than the maximum laminated thickness of the laminated glass in the market, the laminated thickness of the laminated glass is thickened, and the bonding firmness, heat insulation, noise insulation and 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 permanently bonding two or more pieces of glass with one or more layers of organic polymer intermediate films interposed therebetween and subjected to special process treatment. In general, laminated glass is produced by sandwiching a PVB (Polyvinyl Butyral ) or EVA (Ethylene-vinyl Acetate Copolymer, ethylene-vinyl acetate copolymer) film or the like between two glass layers and performing a hot press treatment in an autoclave, and in the course of the molding, PVA or EVA is melted by heat to flow to fill a gap between the two glass layers, and after cooling, the two glass layers are firmly bonded together.
Currently, the thickness specifications of films used for manufacturing laminated glass in the market are 0.38mm, 0.76mm, 1.14mm and 1.52mm, and the laminated glass can be manufactured by laminating films with different thickness specifications in the market without any process in the market, that is, the thickness of the laminated glass in the market can only reach 1.52mm at the maximum, but cannot be thicker, so that the manufactured laminated glass cannot further improve the bonding firmness, the impact-resistant reliability and the heat insulation 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 fact that the thickness of the laminated glass is limited in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a bodied laminated glass, includes relative first glass substrate and the second glass substrate that sets up, presss from both sides between first glass substrate and the second glass substrate and is equipped with the adhesive linkage, and the adhesive linkage includes a plurality of films of laminating in proper order, and the thickness of adhesive linkage is 2.28mm ~3.8mm.
Alternatively, the film thickness is 0.38mm, 0.76mm, 1.14mm, or 1.52mm.
Alternatively, the film is a transparent film or a colored film.
Alternatively, the film is a PVB film, an EVA film, or an SGB film.
Alternatively, 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).
Optionally, the adhesive layer includes a first film, a second film, a third film, a fourth film, and a fifth film, and the thickness of each of the first film, the second film, the third film, the fourth film, and the fifth film is 0.76mm.
The one or more technical schemes in the thickened laminated glass provided by the invention have at least one of the following technical effects: the bonding layer is arranged between the first glass substrate and the second glass substrate in a clamping way, the bonding layer is formed by a plurality of sequentially stacked films, the thickness of the bonding layer can reach 2.2.8-3.8 mm, and the thickness of the bonding layer is higher than the maximum interlayer thickness (1.52 mm) of the laminated glass in the market, so that the interlayer thickness of the laminated glass is further thickened, the bonding 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, and the thickened laminated glass can better resist various impacts under extreme environmental conditions, further widen 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 thickened laminated glass described above, 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, performing primary pressing treatment on the laminated glass to obtain primary pressed laminated glass;
s50, performing high-temperature high-pressure molding and pressing treatment on the primary laminated glass to obtain the finished thickened laminated glass.
Further, in step S40, the initial press treatment includes a first temperature raising stage, a second temperature raising stage, a third temperature raising stage, and a temperature lowering stage, wherein 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 primary pressing treatment by using a hot pressing roller, the pressing speed of the hot pressing roller is 1.0 m/min-4.0 m/min, and the pressing pressure of the hot pressing roller is 0.5 MPa-2.5 MPa.
Further, in step S50, the high-temperature and high-pressure forming and pressing process is performed in a sealed high-pressure apparatus, and the high-temperature and high-pressure forming and pressing process includes a first temperature-increasing and pressure-increasing stage, a second temperature-increasing and pressure-increasing stage, a third temperature-increasing and pressure-increasing stage, and a temperature-decreasing and pressure-decreasing stage;
the temperature of the first temperature rising and pressure rising 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-increasing and pressure-increasing 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-increasing and pressure-increasing stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, and the pressing time is 30-60 min;
the temperature of the cooling and depressurization 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, when the laminated glass is laminated, a plurality of film laminates are clamped between the first glass substrate and the second glass substrate to form the laminated glass, and then the laminated glass is subjected to primary pressing and high-temperature high-pressure forming pressing treatment to obtain the thickened laminated glass.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a thickened laminated glass according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of an adhesive layer of a thickened laminated glass according to a preferred embodiment of the present invention;
FIG. 3 is a flowchart of a method for producing a thickened laminated glass according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for manufacturing a thickened laminated glass according to another embodiment of the present invention.
Wherein, each reference sign in the figure:
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
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to fig. 1 to 4 are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should 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 orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 and 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 disposed opposite to each other, an adhesive layer 30 is sandwiched between the first glass substrate 10 and the second glass substrate 20, the adhesive layer 30 includes a plurality of films stacked in sequence, and the thickness of the adhesive layer 30 formed by stacking is 2.28 mm-3.8 mm.
According to the thickened laminated glass disclosed by the embodiment of the invention, the bonding layer 30 is arranged between the first glass substrate 10 and the second glass substrate 20 in a sandwiched manner, the bonding layer 30 is formed by a plurality of sequentially stacked films, the thickness of the bonding layer 30 can reach 2.2.8-3.8 mm, and the thickness of the bonding layer 30 is higher than the maximum interlayer thickness (1.52 mm) of the laminated glass in the market, so that the interlayer thickness of the laminated glass is further thickened, the bonding layer 30 with the 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 the thickness of the bonding layer 30 between the first glass substrate 10 and the second glass substrate 20 is thicker, so that fragments of the glass substrate can be bonded on the bonding layer 30 when the glass is broken by impact, and damage to the surroundings caused by fragment scattering can be avoided.
In this embodiment, the thickness of the film is 0.38mm, 0.76mm, 1.14mm or 1.52mm, that is, the adhesive layer 30 of this embodiment is formed by stacking films with thickness specifications commonly used in the market at present, and the film raw material is easy to obtain, so that the film with special thickness specifications does not need to be customized for processing the thickened laminated glass of the present invention, so that the market compatibility is stronger and the film can better fit the market.
It should be noted that, since the adhesive layer 30 of the present embodiment is made by stacking films with the existing specification, the thickness of the adhesive layer 30 is in the range of 2.28mm to 3.8mm, and the thickness value thereof is in a multiple relationship with 0.38, specifically, the thickness of the adhesive layer 30 is 6 to 10 times, specifically, 6 to 7 times, 8 times, 9 times or 10 times the thickness of the film with 0.38mm, that is, the thickness of the adhesive layer 30 can be specifically 2.28mm, 2.66mm, 3.04mm, 3.42mm or 3.8mm, and the adhesive layer 30 with a proper thickness can be reasonably selected according to different use requirements during production, and the specific thickness value thereof is not limited only.
In another embodiment of the present invention, the film is a transparent film or a colored film, that is, each film used for stacking the adhesive layer 30 may be either a transparent film or a colored film, and the transparent film and the colored film may be mixed, so that the thickened laminated glass may be colorless and transparent, or may have different color effects, and the variety is more abundant.
In another embodiment of the present invention, the film is a PVB film, an EVA film or an SGB film, that is, the film used for making the adhesive layer 30 may be a film commonly used in the market for making laminated glass, and no special film needs to be customized, so that raw materials are easy to obtain, and the production cost is reduced.
In another embodiment of the present invention, as shown 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 (300 mm to 2440 mm) × (300 mm 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 (300 mm to 2440 mm) × (300 mm 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, 8.0mm, or the like, and furthermore, it is understood that when the thicknesses of the first glass substrate 10 and the second glass substrate 20 bonded to each other are relatively thick, the thicknesses of the corresponding adhesive layers 30 thereof are relatively thick, whereas when the thicknesses of the first glass substrate 10 and the second glass substrate 20 bonded to each other are relatively thin, the thicknesses of the corresponding adhesive layers 30 thereof may also be set relatively thin.
More specifically, in the present embodiment, the layout sizes of the first glass substrate 10 and the second glass substrate 20 may be any size within the above range, which is not limited only according to the size requirement in the specific use case. Furthermore, it will be appreciated that the layout sizes of the first glass substrate 10 and the second glass substrate 20 should be consistent in most cases, and that 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 glass substrates or float ultra-white substrates, and since the float glass is made by floating glass on the surface of tin liquid, the glass has good flatness, no water ripple and is not easy to be deformed; secondly, because float glass mostly uses ore quartz sand as raw materials, the raw materials are good, the produced glass is relatively pure and has higher transparency, and meanwhile, other defects such as glass furuncle and bubbles can not exist; in addition, the float glass has the advantages of heavy weight, compact structure, smooth hand feeling, higher specific gravity per square meter than that of flat glass, good cutting and difficult breakage. In addition, the white glass and the ultra-white glass substrate have good light transmission performance, have crystal clear and high-grade elegant characteristics, and can effectively improve the light transmission performance and the attractive performance of the finished glass product. Therefore, the thickened laminated glass of the present embodiment preferably employs float white glass substrates and float super Bai Jiban 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, there is provided a preferred embodiment of the above-mentioned thickened laminated glass, in which 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 laminated in this order, 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, and at this time, the thickness of the adhesive layer 30 inside the thickened laminated glass is maximized, exhibiting excellent adhesive stability and impact resistance. As shown in the following table, it shows performance test data at the time of quality inspection of the thickened laminated glass of the present embodiment, in which the thicknesses of the first glass substrate 10 and the second glass substrate 20 are each 5.0mm:
TABLE 1 Performance test data for thickened laminated glass
Note that: in the table, "-v" indicates no breakage of the glass after impact, and "×" indicates breakage of the glass after impact; "State description" refers to the state of the thickened laminated glass after the test, wherein the glass is not broken and is marked as "object broken", and the broken glass but the broken glass is stuck to the adhesive layer 30 without scattering and is marked as "safety broken"; the test value of the thickness of the adhesive layer 30 less than 3.8mm is because the thickened laminated glass is subjected to a high-temperature pressurizing process in the manufacturing process, and thus the thickness thereof is reduced by a very small amount, which is within the allowable range of production errors.
In another embodiment of the present invention, as shown in fig. 3 and 4, there is also provided a method for manufacturing the above-mentioned thickened laminated glass, comprising the steps of:
s10, providing a first glass substrate 10, a second glass substrate 20 and a plurality of films.
S20, cleaning the first glass substrate 10 and the second glass substrate 20, and cleaning impurities and dirt on the surfaces of the first glass substrate 10 and the second glass substrate 20, wherein a special cleaning machine can be used for cleaning the first glass substrate 10 and the second glass substrate 20, and a high-pressure water gun and the like can be used for spraying and cleaning the first glass substrate and the second glass substrate; after the cleaning is completed, the moisture on the surfaces of the first glass substrate 10 and the second glass substrate 20 is wiped off, and dried, thereby obtaining the dry and clean first glass substrate 10 and second glass substrate 20.
S30, sequentially laminating and clamping a plurality of films between the first glass substrate 10 and the second glass substrate 20, namely, performing film combination treatment on the first glass substrate, the second glass substrate and the films to obtain the film combination laminated glass. When the films are combined, each film is 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 lamination step is completed in a special lamination chamber, so that the lamination process is ensured not to cause secondary pollution to the first glass substrate 10 and the second glass substrate 20, and external impurities are not brought into the bonding layer 30.
S40, performing primary pressing treatment on the laminated glass to obtain primary pressed laminated glass; specifically, in this embodiment, the laminated glass is initially pressed by a platen press, and specifically, the laminated glass may be initially pressed by a roll press and a platen press, and after the pressure-removing treatment, the first glass substrate 10, the adhesive layer 30 and the second glass substrate 20 are adhered together as a whole.
In this step, the hot press roller of the roller press or the hot press head of the platen press presses the laminated glass, and the pressing is performed while the hot press roller or the hot press head generates heat, which is conducted to the adhesive layer 30, to melt the adhesive sheet to bond the first glass substrate 10 and the second glass substrate 20 together. Specifically, the initial pressing step is carried out in an operating room with the temperature of 18-28 ℃ and the humidity of 18-30%, so as to ensure the smooth proceeding of the initial pressing bonding.
S50, performing high-temperature high-pressure forming and pressing treatment on the primary laminated glass to obtain a finished thickened laminated glass; specifically, in this embodiment, the high-temperature and high-pressure equipment is used to perform high-temperature and high-pressure molding and pressing treatment on the primary laminated glass, and after the treatment, each film in the adhesive layer 30 is completely melted, so that the first glass substrate 10 and the second glass substrate 20 are firmly adhered together, and the finished thickened laminated glass is ensured to have good transparency, and is ensured not to have local chromatic aberration.
In this embodiment, in the step S40, the initial press treatment includes a first temperature raising stage, a second temperature raising stage, a third temperature raising stage, and a temperature lowering stage, wherein 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 ℃. Thus, the purpose of the primary press treatment of the laminated glass is to discharge the gas between the first glass substrate 10 and the second glass substrate 20, thereby avoiding the occurrence of bubbles after the glass is formed; so, in the in-process of initial pressure bonding hot-pressing roller or hot-pressing head carry out the heating of pressfitting in-process with the mode of gradually rising temperature, the temperature rises gradually and melts bonding layer 30 slowly, compare and directly set the temperature to high temperature, slow heating mode like this can avoid appearing because of laminated glass's side banding in advance all around, and lead to the condition that bonding layer 30 central gas can not extrude to appear, thereby can prevent to produce the bubble, in addition, the temperature can slowly rise to higher stage, the film is whole to melt when can, thereby avoid melting not in place and appear the bubble because of the film.
Further, in step S40, the laminated glass is initially pressed by the hot pressing roller, and the pressing speed and the pressing pressure of the hot pressing roller 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 and the pressing pressure of the hot pressing roller are adjusted according to the thickness of the glass and the pressing effect of the initial pressing process, and may specifically be 1.0m/min, 1.5m/min, 2.0m/min, 2.5m/min, 3.0m/min, 3.5m/min or 4.0m/min, and the pressing pressure is preferably 0.5MPa to 2.5MPa, specifically may be 0.5MPa, 1.0MPa, 1.5MPa, 2.0MPa or 2.5MPa, and the specific pressing speed and pressing pressure may be adjusted according to the thickness of the glass and the pressing effect of the initial pressing process, which is not limited herein.
In the present embodiment, in step S50, the high-temperature high-pressure molding press process is performed in a sealed high-pressure apparatus such as an autoclave, and the high-temperature high-pressure molding press process includes a first temperature-increasing and pressure-increasing stage, a second temperature-increasing and pressure-increasing stage, a third temperature-increasing and pressure-increasing stage, and a temperature-decreasing and pressure-decreasing stage; wherein the temperature of the first temperature-raising and pressure-increasing 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-increasing 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-increasing stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, the pressing time is 30-60 min, the temperature of the cooling and pressure-reducing stage is 35-45 ℃, and the pressing time is continued until the high-pressure equipment such as an autoclave is completely decompressed.
Since the film of the adhesive layer 30 inside the laminated glass is not completely melted after the initial pressing treatment, the initially pressed laminated glass is not completely transparent, and the peripheral sides of the glass are not completely sealed, that is, the adhesive layer 30 of the initially pressed laminated glass, the first glass substrate 10 and the second glass substrate 20 cannot achieve the effect of complete adhesion, so that the initially pressed laminated glass needs to be sent into high-pressure equipment to continue to be heated and pressurized, and all the films of the adhesive layer 30 can be melted and the first glass substrate 10 and the second glass substrate 20 are adhered under the extrusion of air pressure. In this way, in the high-temperature high-pressure molding pressing treatment process, the temperature and the air pressure in the high-pressure equipment are pressed in a gradual rising manner, compared with the mode of directly filling the air pressure (namely, the pressure in the high-pressure equipment is directly raised to a third temperature rising and pressure rising stage), the slow rising manner of the pressure can avoid the condition that bubbles are generated in the center of the bonding layer 30 due to the fact that the side parts around 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 much, the bonding layer 30 is prevented from overflowing from the middle of the first glass substrate 10 and the second glass substrate 20 after being melted, and likewise, the pressing temperature and the pressing pressure cannot be set too low, so that films of the bonding layer 30 cannot be thoroughly melted possibly, and the bonding effect and the transparency of a glass finished product are affected.
In this example, the thickened laminated glass produced by the above steps can achieve substantially 100% transparency without localized color differences when a colored film is used.
In another embodiment of the present invention, as shown in fig. 4, after step S50, step S60 is further included, and in step S60, offline quality detection is performed on the finished product thickened laminated glass, so as to detect multiple properties of impact resistance, heat insulation, noise insulation, light transmittance, heat resistance, moisture resistance, radiation resistance, etc. of the glass, so as to ensure that the finished product glass meets various use requirements of users.
According to the manufacturing method for processing the thickened laminated glass, when the laminated glass is laminated, a plurality of film laminates are clamped between the first glass substrate 10 and the second glass substrate 20 to form the laminated glass, and then the laminated glass is subjected to primary pressing and high-temperature high-pressure forming pressing treatment to obtain the thickened laminated glass, and the thickened laminated glass produced by the method has thicker interlayer thickness between the first glass substrate 10 and the second glass substrate 20, higher bonding firmness, stronger heat insulation, noise insulation and impact resistance and can meet larger market demands.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. A method for making a 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, performing primary pressing treatment on the laminated glass to obtain primary pressed laminated glass;
s50, performing high-temperature high-pressure forming and pressing treatment on the primary laminated glass to obtain a finished thickened laminated glass;
in the step S40, the initial pressure treatment 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 ℃.
2. The method for manufacturing a thickened laminated glass according to claim 1, wherein in the step S40, the laminated glass is subjected to primary press treatment by a hot press roller, the pressing speed of the hot press roller is 1.0m/min to 4.0m/min, and the pressing pressure of the hot press roller is 0.5mpa to 2.5mpa.
3. The method for manufacturing a thickened laminated glass according to claim 1, wherein in the step S50, the high-temperature high-pressure forming pressing process is performed in a sealed high-pressure apparatus, and the high-temperature high-pressure forming pressing process includes a first temperature-increasing and pressure-increasing stage, a second temperature-increasing and pressure-increasing stage, a third temperature-increasing and pressure-increasing stage, and a temperature-decreasing and pressure-decreasing stage;
the temperature of the first temperature-rising and pressure-rising 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-increasing and pressure-increasing 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-increasing and pressure-increasing stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, and the pressing time is 30-60 min;
the temperature of the cooling and depressurization stage is 35-45 ℃, and the pressing time is continued until the high-pressure equipment is completely depressurized.
4. A thickened laminated glass characterized in that: the method for manufacturing the thickened laminated glass according to any one of claims 1-3, wherein an adhesive layer is arranged 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.
5. The thickened laminated glass of claim 4, wherein: the film had a thickness of 0.38mm, 0.76mm, 1.14mm or 1.52mm.
6. The thickened laminated glass of claim 4, wherein: the film is transparent film or colored film.
7. The thickened laminated glass of claim 4, wherein: the film is PVB film, EVA film or SGB film.
8. The thickened laminated glass of claim 4, wherein: the thickness of the first glass substrate is 2.7-8 mm, and the size of the cross section of the first glass substrate is 300-2440 mm (300-2440 mm); the thickness of the second glass substrate is 2.7-8 mm, and the size of the cross section of the second glass substrate is 300-2440 mm (300-2440 mm).
9. The thickened laminated glass according to any one of claims 4 to 8, characterized in that: the bonding layer comprises 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 0.76mm.
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| 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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