CN112901030B - Sandwich hollow glass and manufacturing method thereof - Google Patents
Sandwich hollow glass and manufacturing method thereof Download PDFInfo
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- CN112901030B CN112901030B CN202110123698.6A CN202110123698A CN112901030B CN 112901030 B CN112901030 B CN 112901030B CN 202110123698 A CN202110123698 A CN 202110123698A CN 112901030 B CN112901030 B CN 112901030B
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
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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
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
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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
-
- 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
- B32B37/1284—Application of adhesive
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
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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
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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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
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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
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/673—Assembling the units
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
- E06B3/6775—Evacuating or filling the gap during assembly
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
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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
- B32B2605/00—Vehicles
- B32B2605/10—Trains
Abstract
The invention discloses laminated hollow glass and a manufacturing method thereof, wherein the laminated hollow glass comprises outer side laminated glass, inner side laminated glass and a hollow layer positioned between the outer side laminated glass and the inner side laminated glass; the outer laminated glass comprises a first glass plate, a second glass plate and a first bonding layer laminated between the first glass plate and the second glass plate; the inner laminated glass comprises a third glass plate, a fourth glass plate and a second bonding layer laminated between the third glass plate and the fourth glass plate; the second glass plate and the third glass plate are respectively positioned at two sides of the hollow layer; the thickness of the outer laminated glass is larger than that of the inner laminated glass. The invention adopts the hollow glass structure with asymmetric thickness, realizes the improvement of the shock resistance of the glass, reduces the total thickness and the total weight of the glass, reduces the production cost and improves the safety.
Description
Technical Field
The invention relates to the field of vehicle glass, in particular to laminated hollow glass and a manufacturing method thereof.
Background
As the speed of trains is higher and higher, the requirement of the higher running speed on the safety of locomotive glass is continuously increased, and the pressure impact born by the locomotive glass and the noise generated by the running of the locomotive glass are also continuously increased as the locomotive glass is taken as a typical brittle material. In a high-speed running state, the impact resistance of the glass is important in order to ensure the safety and durability of the glass. However, the current technology is limited to obtaining greater impact resistance by increasing the thickness of the glass, which will make the thickness of the glass larger and larger, and increase the weight and the operation cost of the glass. With the further development of high-speed trains, how to improve the impact resistance of the bullet train glass and simultaneously reduce the thickness of the bullet train glass becomes the toggle for popularization and application of the bullet train glass.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided are a laminated hollow glass and a method for manufacturing the same, which can improve the impact resistance of the glass and reduce the total thickness and the total weight of the glass.
In order to solve the technical problems, the invention adopts the technical scheme that:
the laminated hollow glass comprises outer laminated glass, inner laminated glass and a hollow layer positioned between the outer laminated glass and the inner laminated glass;
the outer laminated glass comprises a first glass plate, a second glass plate and a first bonding layer laminated between the first glass plate and the second glass plate; the inner laminated glass comprises a third glass plate, a fourth glass plate and a second bonding layer laminated between the third glass plate and the fourth glass plate; the second glass plate and the third glass plate are respectively positioned at two sides of the hollow layer;
the thickness of the first glass plate is 5 mm-10 mm, the thickness of the second glass plate is 0.5 mm-1.4 mm, and the thickness of the first bonding layer is 0.38 mm-2.28 mm; the thickness of the third glass plate is 0.5-1.4 mm, the thickness of the fourth glass plate is 4-6 mm, and the thickness of the second bonding layer is 0.38-2.28 mm; the thickness of the hollow layer is 9-18 mm, and the thickness of the outer side laminated glass is larger than that of the inner side laminated glass.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a method for manufacturing a laminated hollow glass comprises the following steps:
s1: carrying out chemical toughening treatment on the second glass plate and the third glass plate, and carrying out physical toughening treatment on the first glass plate and the fourth glass plate;
s2: laminating the first glass plate, the first bonding layer and the second glass plate to form outer laminated glass; laminating the third glass plate, the second bonding layer and the fourth glass plate to form the inner laminated glass;
s3: bonding the outer side laminated glass and the inner side laminated glass to two sides of a fixing frame in parallel, and performing tabletting treatment, wherein a hollow layer is formed between the outer side laminated glass and the inner side laminated glass;
s4: and filling dry air or inert gas into the hollow layer to form hollow glass, and sealing the hollow glass.
The invention has the beneficial effects that: in the invention, the thicknesses of the inner laminated glass and the outer laminated glass are different, so that a hollow glass structure with asymmetric thickness is formed, the overall thickness of the hollow glass is reduced, and the rigidity of the hollow glass is increased; the glass surface is easy to expand due to tensile stress to generate cracks, the load borne by the laminated glass on the inner side is transferred to the laminated glass on the outer side by utilizing an asymmetric glass structure, and meanwhile, the integral deformation of the laminated glass is reduced, so that the tensile stress borne by the laminated glass on the inner side is reduced; in addition, the thin glass of inboard that the chemistry was tempered itself can bear bigger tensile stress and not break, therefore this structural design makes glass receive external impact, wind pressure etc. non-deformable, break, has improved the security, has reduced hollow glass's gross thickness and whole weight simultaneously.
Drawings
FIG. 1 is a schematic structural view of a laminated hollow glass according to the present invention.
Description of reference numerals:
1. a first glass plate; 2. a second glass plate; 3. a third glass plate; 4. a fourth glass plate; 5. a first adhesive layer; 6. a second adhesive layer; 7. a hollow layer; 8. a fixing frame is provided.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the laminated hollow glass of the present invention includes an outer laminated glass, an inner laminated glass, and a hollow layer 7 located between the outer laminated glass and the inner laminated glass;
the outer laminated glass comprises a first glass plate 1, a second glass plate 2 and a first bonding layer 5 laminated between the first glass plate 1 and the second glass plate 2; the inner laminated glass comprises a third glass plate 3, a fourth glass plate 4 and a second bonding layer 6 laminated between the third glass plate 3 and the fourth glass plate 4; the second glass plate 2 and the third glass plate 3 are respectively positioned at two sides of the hollow layer 7;
the thickness of the first glass plate 1 is 5 mm-10 mm, the thickness of the second glass plate 2 is 0.5 mm-1.4 mm, and the thickness of the first bonding layer 5 is 0.38 mm-2.28 mm; the thickness of the third glass plate 3 is 0.5 mm-1.4 mm, the thickness of the fourth glass plate 4 is 4 mm-6 mm, and the thickness of the second bonding layer 6 is 0.38 mm-2.28 mm; the thickness of the hollow layer 7 is 9 mm-18 mm, and the thickness of the outer laminated glass is larger than that of the inner laminated glass.
The working principle of the invention is as follows:
1. the thicknesses of two glass plates of the outer laminated glass and the inner laminated glass are unequal, namely the thickness of the second glass plate 2 is obviously lower than that of the first glass plate 1, and the thickness of the third glass plate 3 is obviously lower than that of the fourth glass plate 4, so that a laminated glass structure with asymmetric thickness is formed, and the laminated glass has lighter weight, higher rigidity and impact resistance;
2. the thickness of the sandwich glass on the inner side is smaller than that of the sandwich glass on the outer side, a hollow glass structure with asymmetric thickness is formed, the load borne by the sandwich glass on the inner side is transferred to the sandwich glass on the outer side, the mechanical property of the outermost side of the hollow glass is improved, the safety of the glass is improved, and the resistance to the external environment in high-speed operation, such as flying sand, ballast gravel and the like, is met.
From the above description, the beneficial effects of the present invention are: the overall thickness of the hollow glass is reduced and the rigidity of the hollow glass is increased by utilizing the sandwich glass structure with asymmetric thickness and the hollow glass structure with asymmetric thickness; because tensile stress easily makes glass surface microcrack expand and produce and break, utilize asymmetric glass structure to shift the load that inboard laminated glass received to outside laminated glass on, laminated glass's whole deflection reduces simultaneously to make tensile stress that inboard laminated glass received reduce, compressive stress improves, make the crackle shrink, and then make glass be difficult for the breakage, improved glass's security, reduced manufacturing cost simultaneously.
Further, the thickness of the outer laminated glass is 1.1 to 2.5 times of the thickness of the inner laminated glass, specifically, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4 or 2.5 can be used as an example, so as to form a hollow glass structure with an asymmetric thickness, and the load applied to the inner laminated glass is transferred to the outer laminated glass, so that the mechanical property of the outermost side of the hollow glass is improved, the safety of the glass is improved, and the resistance to the external environment in high-speed operation, such as flying sand, ballast gravel and the like, is satisfied.
Further, the ratio of the thickness of the second glass plate 2 to the thickness of the first glass plate 1 is 1:16 to 1:4, for example, 1:16, 1:15, 1:14, 1:13, 1:12, 1:11, 1:10, 1:9, 1:8, 1:7, 1:6, 1:5, or 1:4, to form an outer laminated glass with an asymmetric thickness; the ratio of the thickness of the third glass plate 3 to the thickness of the fourth glass plate 4 is 1: 9-1: 3, such as 1:9, 1:8, 1:7, 1:6, 1:5, 1:4 or 1:3, etc., so as to form the inner laminated glass with asymmetric thickness; the outer laminated glass and the inner laminated glass with asymmetric thickness have lighter weight, higher rigidity and impact resistance.
Further, the first glass plate 1 and the fourth glass plate 4 are soda lime glass, aluminosilicate glass, or borosilicate glass; the first glass plate 1 and the fourth glass plate 4 are preferably physically tempered glass, and the surface compressive stress is more than or equal to 90 MPa.
Further, the second glass plate 2 and the third glass plate 3 are soda lime glass, aluminosilicate glass, lithium aluminosilicate glass; the second glass plate 2 and the third glass plate 3 are preferably made of chemically toughened glass, the surface compressive stress is more than or equal to 500MPa, and the depth of the stress layer is more than or equal to 15 mu m; the chemical toughened glass can bear larger tensile stress without breaking, so that the structural design ensures that the glass is not easy to deform and break under the action of external impact, wind pressure and the like, improves the safety, and simultaneously reduces the total thickness and the whole weight of the hollow glass.
Further, the hollow layer 7 is filled with dry air or an inert gas such as argon gas having a concentration of more than 80%.
Further, the first adhesive layer 5 and the second adhesive layer 6 may be at least one selected from Polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl butyral (PVB), Ethylene Vinyl Acetate (EVA), Polyacrylate (PA), polymethyl methacrylate (PMMA), an ionic interlayer (SGP), Polyurethane (PU), or the like. Alternatively, the first adhesive layer 5 and the second adhesive layer 6 may have a single-layer structure or a multi-layer structure, and the multi-layer structure may have a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, or the like.
The invention also provides a method for manufacturing the laminated hollow glass, which comprises the following steps:
s1: carrying out chemical toughening treatment on the second glass plate 2 and the third glass plate 3, and carrying out physical toughening treatment on the first glass plate 1 and the fourth glass plate 4;
s2: laminating the first glass plate 1, the first bonding layer 5 and the second glass plate 2 to form outer laminated glass; laminating the third glass plate 3, the second adhesive layer 6 and the fourth glass plate 4 to form inner laminated glass;
the chemical toughening treatment in the S1 comprises the following specific steps: carrying out chemical toughening treatment on the second glass plate 2 and the third glass plate 3 at the temperature of 350-420 ℃, wherein the treatment time is 2-5 h; s2 further comprises the steps of pre-vacuumizing the outer side laminated glass and the inner side laminated glass for 0.5-4 h respectively, and placing the pre-vacuumized laminated glass in a high-pressure kettle to finish high-pressure treatment, wherein the pressure of the high-pressure treatment is 10-13 bar, and the temperature is 130-180 ℃, so that the rigidity of the outer side laminated glass and the inner side laminated glass can be further improved.
S3: adhering the outer side laminated glass and the inner side laminated glass to two sides of the fixing frame 8 in parallel, and performing pressing treatment to form a hollow layer 7 between the outer side laminated glass and the inner side laminated glass;
wherein the time of the tabletting treatment is 10 s-17 s, and the air pressure is 0.6 MPa-0.7 MPa.
The fixing frame 8 is a metal frame, such as an aluminum frame.
S4: and filling dry air or inert gas into the hollow layer 7 to form hollow glass, and sealing the hollow glass.
Specifically, in S4, a sealant gluing machine is used for carrying out secondary sealing treatment on the edge of the hollow glass, redundant sealant at the corner of the hollow glass is removed after the sealant is sealed, and the hollow glass is dried for 4-9 hours in the air, so that the sealant of the hollow glass is solidified. The second glass plate 2 and the third glass plate 3 adopt a chemical strengthening process to obviously improve the mechanical strength of the glass; the first glass plate 1 and the fourth glass plate 4 are physically strengthened in order to meet the requirement of glass rigidity during escape.
Examples
The present invention will be described by referring to examples 1 to 8 and comparative examples 1 to 6.
Hollow glasses of examples 1 to 8 and comparative examples 1 to 6 were prepared according to the data of Table 1.
Table 1: hollow glass structures of examples 1 to 8 and comparative examples 1 to 6
The gravel impact resistance of the combination of examples 1 to 8 and comparative examples 1 to 6 was measured according to TB/T1451 to 2017; under the load of 10KPa wind pressure, the maximum deformation of the outer sandwich glass of the hollow glass, namely the central deflection is measured, and the smaller the central deflection is, the stronger the wind pressure deformation resistance is; and the average areal densities of the combinations of examples 1-8 and comparative examples 1-6 were calculated, each result being shown in Table 2;
table 2: test results of examples 1 to 8 and comparative examples 1 to 6
From table 2 the following conclusions can be drawn:
the hollow glass of examples 1 to 8 has a small average area density, i.e., the weight of the hollow glass can be reduced, and simultaneously, the hollow glass has high gravel impact resistance and wind pressure deformation resistance; along with the gradual increase of the thickness ratio of the first glass plate to the second glass plate, the gravel impact resistance and the wind pressure deformation resistance are correspondingly and gradually improved; from the comparison of the results of examples 4, 7 and 8, it is understood that, when the weight of the hollow glass is the same or similar, the gravel impact resistance is improved, the wind pressure deformation resistance is remarkably improved, and the mechanical properties are remarkably improved as the thickness ratio of the outer laminated glass to the inner laminated glass is gradually increased.
The results of example 4, example 7, example 8 and comparative example 1, example 6 and comparative example 3 were compared: under the condition that the average surface densities are the same or similar, the hollow glass combination can improve the gravel impact resistance by 42-104%, improve the wind pressure deformation resistance (rigidity) by 75-150% and obviously enhance the mechanical property.
The results of example 1 and comparative example 2, example 2 and comparative example 3, comparative example 4, and example 4 and comparative example 6 were compared: under the condition that the same or similar gravel impact resistance speed can be met, the weight of the hollow glass composition can be reduced by 26-42%.
The results of example 3 and comparative example 3, comparative example 4, example 4 and comparative example 5, and example 5 and comparative example 6 were compared: under the condition of wind pressure deformation resistance of the same or similar level, the hollow glass composition can reduce 20-33% and improve 12-17% of gravel impact resistance.
In summary, according to the laminated hollow glass and the manufacturing method thereof provided by the invention, the hollow glass structure with asymmetric thickness is adopted, so that the thickness and the weight of the hollow glass are reduced, and the rigidity and the safety of the hollow glass are improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. The laminated hollow glass is characterized by comprising outer laminated glass, inner laminated glass and a hollow layer positioned between the outer laminated glass and the inner laminated glass;
the outer laminated glass comprises a first glass plate, a second glass plate and a first bonding layer laminated between the first glass plate and the second glass plate; the inner laminated glass comprises a third glass plate, a fourth glass plate and a second bonding layer laminated between the third glass plate and the fourth glass plate; the second glass plate and the third glass plate are respectively positioned at two sides of the hollow layer;
the thickness of the first glass plate is 7-10 mm, the thickness of the second glass plate is 0.5-1.4 mm, and the thickness of the first bonding layer is 0.38-2.28 mm; the thickness of the third glass plate is 0.5-1.4 mm, the thickness of the fourth glass plate is 5-6 mm, and the thickness of the second bonding layer is 0.38-2.28 mm; the thickness of the hollow layer is 9-18 mm, and the thickness of the outer laminated glass is greater than that of the inner laminated glass;
the thickness of the outer side laminated glass is 1.5-2.5 times of that of the inner side laminated glass;
the first glass plate and the fourth glass plate are made of physical toughened glass, and the second glass plate and the third glass plate are made of chemical toughened glass.
2. The laminated insulating glass according to claim 1, wherein the ratio of the thickness of the second glass plate to the thickness of the first glass plate is 1:16 to 1: 4.
3. The laminated hollow glass according to claim 1, wherein the ratio of the thickness of the third glass plate to the thickness of the fourth glass plate is 1:9 to 1: 3.
4. A laminated insulating glass according to claim 1, wherein said first and fourth glass sheets are soda lime, aluminosilicate or borosilicate glass and said second and third glass sheets are soda lime, aluminosilicate or lithium aluminosilicate glass.
5. The laminated hollow glass according to claim 1, wherein the surface compressive stress of the first glass plate and the fourth glass plate is not less than 90 MPa; the surface compressive stress of the second glass plate and the third glass plate is more than or equal to 500MPa, and the depth of the stress layer is more than or equal to 15 mu m.
6. The laminated hollow glass according to claim 1, wherein the hollow layer is filled with dry air or inert gas.
7. A method for manufacturing a laminated hollow glass, which is applied to the laminated hollow glass as claimed in any one of claims 1 to 6, is characterized by comprising the following steps:
s1: carrying out chemical toughening treatment on the second glass plate and the third glass plate, and carrying out physical toughening treatment on the first glass plate and the fourth glass plate;
s2: laminating the first glass plate, the first bonding layer and the second glass plate to form outer laminated glass; laminating the third glass plate, the second bonding layer and the fourth glass plate to form the inner laminated glass;
s3: bonding the outer side laminated glass and the inner side laminated glass to two sides of a fixing frame in parallel, and performing tabletting treatment, wherein a hollow layer is formed between the outer side laminated glass and the inner side laminated glass;
s4: and filling dry air or inert gas into the hollow layer to form hollow glass, and sealing the hollow glass.
8. The method of claim 7, wherein the step S2 further comprises pre-evacuating the outer laminated glass and the inner laminated glass for 0.5-4 h, respectively, and subjecting the pre-evacuated laminated glass to high pressure treatment in an autoclave at a pressure of 10-13 bar and a temperature of 130-180 ℃.
9. The method of claim 7, wherein the pressing treatment is carried out for a time period of 10s to 17s and a pressure of 0.6MPa to 0.7 MPa.
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| CN202110123698.6A CN112901030B (en) | 2021-01-29 | 2021-01-29 | Sandwich hollow glass and manufacturing method thereof |
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| DE202012002722U1 (en) * | 2012-03-19 | 2012-07-11 | Flachglas Wernberg Gmbh | Insulating glass pane and window module |
| CN206053744U (en) * | 2016-07-04 | 2017-03-29 | 中车青岛四方机车车辆股份有限公司 | A kind of rolling stock and its window structure |
| DE102017009168A1 (en) * | 2017-10-02 | 2019-04-04 | Bernd Augenstein | Insulating glazing with emergency exit |
| CN112208562B (en) * | 2019-07-11 | 2022-03-15 | 中国航发北京航空材料研究院 | High-performance light-weight passenger room side window for high-speed train |
| CN210416558U (en) * | 2019-07-11 | 2020-04-28 | 中国航发北京航空材料研究院 | Lightweight door window for high-speed train |
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