CN105538833A - Composite side window glass - Google Patents

Composite side window glass Download PDF

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Publication number
CN105538833A
CN105538833A CN201510921219.XA CN201510921219A CN105538833A CN 105538833 A CN105538833 A CN 105538833A CN 201510921219 A CN201510921219 A CN 201510921219A CN 105538833 A CN105538833 A CN 105538833A
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CN
China
Prior art keywords
layer
glass
glass layer
film
side window
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Granted
Application number
CN201510921219.XA
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Chinese (zh)
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CN105538833B (en
Inventor
穆元春
杜大艳
张保军
徐志伟
左岩
付静
刘超英
张凡
陈玮
张洋
安远
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BEIJING HANGBO NEW MATERIAL TECHNOLOGY Co Ltd
China Building Materials Academy CBMA
Original Assignee
BEIJING HANGBO NEW MATERIAL TECHNOLOGY Co Ltd
China Building Materials Academy CBMA
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Priority to CN201510921219.XA priority Critical patent/CN105538833B/en
Publication of CN105538833A publication Critical patent/CN105538833A/en
Application granted granted Critical
Publication of CN105538833B publication Critical patent/CN105538833B/en
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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
    • B32B17/064—
    • 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
    • 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
    • B32B17/10045—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 with at least one intermediate layer consisting of a glass sheet
    • B32B17/10055—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 with at least one intermediate layer consisting of a glass sheet with at least one intermediate air space
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • 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
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings

Landscapes

  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention provides a composite side window glass which comprises an electric heating assembly and a first glass layer, a second glass layer and a third glass layer which are sequentially overlapped. A first glue sheet layer is arranged between the first glass layer and the second glass layer, the first side face of the first glass layer is bonded to the first glue sheet layer, and a second side face, opposite to the first side face, of the first glass layer is coated with an antireflection film; a hollow layer is formed among the second glass layer, the third glass layer and spacing bars; the hollow layer is formed between a first side face of the third glass layer and the second glass layer; a second side face, opposite to the first side face, of the third glass layer is bonded with an anti-splashing film; a second glue sheet layer is arranged between the anti-splashing film and the third glass layer; the electric heating assembly is arranged in the first glue sheet layer and is used for being connected with an external power supply for heating the first glass layer. The composite side window glass has excellent mechanical properties, thermal properties, optical properties and the like, and can ensure driving safety and operation stability of high-speed trains.

Description

Combined type side window glass
The invention relates to a composite side window glass and a preparation method thereof, wherein the application date of the original application is 03 and 31 days 2014, the application number is 2014101259899.
Technical Field
The invention belongs to the field of glass processing, and particularly relates to a combined type side window glass for a 380 type high-speed train.
Background
In a sea, land and air transportation system consisting of airplanes, trains, automobiles and ships, railway transportation has the characteristics of large transportation volume, high speed, long distance, low cost, small pollution and the like, and gradually wins the competition with other transportation modes, thereby becoming the most important transportation system. High speed railways are able to transport large quantities of goods and personnel to distant locations in a shorter time, driving rapid economic growth along railways, in regions and even nationwide, and thus being outstanding in railway systems. By the beginning of 2005, 25 countries in the world have had passenger trains running at speeds in excess of 240 km/h. At present, the operation speed of foreign high-speed trains is usually about 300km/h, the highest operation speed is about 340km/h, and the technical level of high-speed train side window glass of the countries is also at the leading-edge level of the world. The side window glass is used as an important component of a high-speed train, and the running safety and the running stability of the high-speed train are directly threatened by the quality of various properties (such as mechanical property, thermal property, optical property and the like) of the side window glass.
When the running speed of the high-speed train in China is lower than that of a foreign high-speed train, the problem of running safety and stability of the train is not obvious because the method of side window glass entering from foreign countries is adopted for making up. However, as the running speed of high-speed rail in China is gradually increased and far beyond foreign countries, the existing high-speed rail train side window glass is not available for people to use, the problem cannot be solved by import, and the problem of the side window glass is increasingly highlighted. In addition, after the high-speed train in China is at the world leading level, the high-speed train is changed from an imported country to an exported country, and the problem that various performances of the side window glass need to be improved is solved.
At present, most of side window glass used for a large part of domestic trains is common safety glass used under a low-speed running condition, and the requirement of high-speed locomotives, especially high-speed locomotives with the speed of over 380 kilometers per hour, on safety cannot be met.
Disclosure of Invention
The invention mainly aims to provide a composite side window glass for a high-speed train, which has excellent mechanical property and thermal property, so that the driving safety and the running stability of the high-speed train (especially the high-speed train with the speed of more than 380 kilometers per hour) are improved.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
According to the invention, the composite side window glass is used for a high-speed locomotive, and comprises: an electric heating component, a first glass layer, a second glass layer and a third glass layer which are sequentially overlapped, wherein,
a first film layer is arranged between the first glass layer and the second glass layer, the first glass layer is provided with a first side surface and a second side surface opposite to the first side surface, the first side surface of the first glass layer is bonded with the first film layer, and the second side surface of the first glass layer is coated with an antireflection film;
a spacer is bonded between the edge of the second glass layer and the edge of the third glass layer; hollow layers are formed among the second glass layer, the third glass layer and the spacing bars;
the third glass layer is provided with a first side surface and a second side surface opposite to the first side surface, the hollow layer is formed between the first side surface of the third glass layer and the second glass layer, a splash-proof film for preventing glass from splashing is bonded to the second side surface of the third glass layer, and a second film layer is arranged between the splash-proof film and the third glass layer;
the electric heating assembly is arranged on the first film layer and used for being connected with an external power supply to heat the first glass layer.
Further, the electric heating assembly comprises a heating wire, a first bus bar, a second bus bar, an input lead and an output lead; wherein,
the number of the electric heating wires is at least one, and the electric heating wires are distributed in the first film layer;
the first bus bar and the second bus bar are arranged on the first film layer; the output end of the first bus bar is connected with the input end of the electric heating wire, and the input end of the second bus bar is connected with the output end of the electric heating wire;
the output end of the input lead is connected with the input end of the first bus bar, and the output end of the input lead extends out of the side window glass;
the input end of the output lead is connected with the output end of the second bus bar, and the input end of the output lead extends out of the side window glass.
Furthermore, the number of the electric heating assemblies is at least two, and the at least two groups of electric heating assemblies are connected in parallel.
Further, the electric heating wire is a tungsten electric heating wire, and the diameter of the tungsten electric heating wire is 0.1-0.2 mm.
Further, the first glass layer is a chemically tempered glass layer; the surface stress of the chemical toughened glass layer is 700-900MPa, and the thickness of the chemical toughened glass layer is 4-8 mm.
Further, the second glass layer and the third glass layer are physical toughened glass layers; the surface stress of the physical toughened glass layer is 70-100MPa, and the thickness of the physical toughened glass layer is 4-8 mm.
Further, the first film layer is one of a polyurethane film layer and a polyvinyl butyral (PVB) film layer; the thickness of the first film layer is 0.3-1.2 mm;
the second film layer is one of a polyurethane film layer and a polyvinyl butyral (PVB) film layer; the thickness of the second film layer is 0.3-1.2 mm.
Further, the antireflection film is SiO2Single layer film, TiO2Single layer film, SiO2/TiO2Bilayer film and SiO2/TiO2/SiO2One of a multilayer composite film;
the thickness of the antireflection film is 100-500 nm.
Further, a molecular sieve drying agent is filled in the hollow layer to ensure the dryness of the hollow layer.
By the technical scheme, the composite side window glass at least has the following advantages:
the composite side window glass provided by the invention has excellent mechanical property, thermal property, optical property and the like, and can ensure the driving safety and stable operation of a high-speed train.
(1) The side window glass provided by the invention improves the light transmission of the side window glass by coating the antireflection film on the outer surface of the first glass layer. The first glass layer adopts chemically toughened glass to improve the impact strength of the side window glass, so that the side window glass has excellent mechanical properties. The second glass layer and the third glass layer are made of physical toughened glass, and through the design, passengers of the high-speed locomotive can conveniently escape by breaking the side window glass under the dangerous condition.
(2) Through set up the heating wire on first film layer, be connected heating wire and external power supply through the wire, realize under the normal printing opacity's of side window glass that does not influence high-speed train condition, carry out the electrical heating for the first layer glass (first glass layer) of side window, thereby the effectual snow that gets rid of combined type side window first layer glass surface, frost, avoided because the luminousness that causes such as side window glass surface snow or icing frost is low, influence the driver, passenger's field of vision, still threaten the safe phenomenon of operation of locomotive when serious, combined type side window glass's life has been prolonged.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a cross-sectional view of a composite side window glass structure provided by the present invention;
FIG. 2 is a schematic view of the arrangement of the electrical heating element of the composite side window glass on the first film layer;
FIG. 3 is a schematic view of an electrical heating operation of the composite side window glass according to one embodiment of the present invention;
fig. 4 is a schematic view of the arrangement of the electrical heating element of the composite side window glass on the first film layer according to another embodiment of the present invention.
The automobile window glass comprises 10 automobile window glass layers, 11 first glass layers, 12 first film layers, 13 second glass layers, 14 third glass layers, 15 second film layers, 17 antireflection films, 18 spacing strips, 19 sealing rubber strips, 20 anti-splashing films, 161 heating wires, 162 first bus bars, 163 second bus bars, 164 input leads and 165 output leads.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the composite side window glass and the preparation method thereof according to the present invention, the specific implementation manner, structure, features and effects thereof are provided in the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1, one embodiment of the present invention provides a side window glass for high-speed locomotives, especially for high-speed locomotives with speed exceeding 380 km/h. The side window glass 10 includes: the electric heating module comprises a first glass layer 11, a first film layer 12, a second glass layer 13, a third glass layer 14, a second film layer 15 and an electric heating assembly. The first glass layer 11, the second glass layer 13 and the third glass layer 14 are sequentially laminated from outside to inside. The first film layer 12 is disposed between the first glass layer 11 and the second glass layer 13, and the first film layer 12 bonds the first glass layer 11 and the second glass layer 13 together. The first glass layer 11 has a first side and a second side opposite to the first side, wherein the first side of the first glass layer 11 is bonded to the first film layer 12, the second side of the first glass layer 11 is coated with an antireflection film 17, and the antireflection film 17 is used for increasing the light transmission amount of the side window glass 10 to improve the light transmission performance of the side window glass. A spacing bar 18 is arranged between the edge of the second glass layer 13 and the edge of the third glass layer 14; hollow layers are formed among the second glass layer 13, the third glass layer 14 and the arranged spacing bars 18 (the hollow layers are hollow cavities between the second glass layer 13 and the third glass layer 14); the spacer 18 is bonded to the edges of the second glass layer 13 and the third glass layer 14 by a sealant 19. The third glass layer 14 has a first side and a second side, wherein the hollow layer is formed between the first side of the third glass layer 14 and the second glass layer; the second side of the third glass layer 14 is coated with a splash-proof film 20 for preventing glass from splashing; a second film layer 15 is arranged between the splash-proof film 20 and the third glass layer 14; the second film layer 15 serves to bond the spatter prevention film 20 to the third glass layer 14. An electric heating assembly (not shown) is arranged in the first film layer 12 and is used for being connected with an external power supply to heat the first glass layer 11 and remove accumulated snow or frost on the surface of the outermost glass (the first glass layer 11) of the side window, so that the phenomena that the vision of a driver and a passenger is influenced and the operation safety of a locomotive is threatened due to low light transmittance caused by the accumulated snow or the frost on the surface of the side window glass 10 are avoided; and the service life of the composite side window glass is prolonged. The surface stress of the first glass layer 11 is far greater than that of the second glass layer 13 and the third glass layer 14; the first glass layer 11 is mainly used for improving the mechanical property of the side window glass 10, so that the side window glass 10 has strong impact resistance; the surface stress of the second glass layer 13 and the third glass layer 14 is larger than that of the common glass, so that the whole impact resistance of the side window glass 10 is enhanced on one hand, and passengers of a high-speed locomotive can conveniently escape by breaking the side window glass in a dangerous condition on the other hand.
As shown in fig. 2, the electric heating element includes a heating wire 161, a first bus bar 162, a second bus bar 163, an input wire 164, and an output wire 165. Wherein, the heating wires 161 are plural, and the plural heating wires 161 are uniformly arranged in the first film layer 12. The first bus bar 162 and the second bus bar 163 are disposed on the first film layer 12; the output end of the first bus bar 162 is connected with the input end of the heating wire 161, and the input end of the second bus bar 163 is connected with the output end of the second bus bar 163; the output end of the input wire 164 is connected to the input end of the first bus bar 162, and the output end of the input wire 164 extends out of the side window glass 10; the input end of the output wire 165 is connected to the output end of the second bus bar 163, and the input end of the output wire 165 protrudes out of the side window 10. The input lead 164 and the output lead 165 are used for connecting with an external power supply to supply power to the heating wire 161 to generate heat.
As shown in fig. 3, when ice, snow and rain weather occurs, the input lead of the composite side window glass is connected to the output end of an external power supply, the output lead thereof is connected to the input end of the external power supply, so that the electric heating assembly of the composite side window glass and the external power supply form a closed loop, current provided by the external power supply flows into the input lead 164 through the output end thereof, flows into the input end of the first bus bar 162 through the input lead 164, is shunted to the parallel heating wires 161 through the first bus bar 162, generates heat through the heating wires 161, and melts the ice and snow covered on the first glass layer 11 with the antireflection film 17; the current flowing through the heating wire 161 is collected by the second bus bar 163, and flows back to the input terminal of the external power supply through the output wire 165. In this embodiment, the heating wire 161 is arranged in the first film layer 12, the input lead 164 and the output lead 165 are used for connecting the heating wire 161 with an external power supply, so that the electric heating is performed on the first glass layer 11 of the side window without affecting the normal light transmission of the side window glass for the combined high-speed locomotive, the accumulated snow or frost on the surface of the first glass layer 11 of the combined side window glass 10 is effectively removed, and the phenomena that the light transmittance is low, the vision of a driver and a passenger is affected and the operation safety of the locomotive is threatened due to the accumulated snow or the frozen frost on the surface of the side window glass 10 are avoided. Preferably, the input lead 164 of the electric heating assembly is connected with the output end of the temperature controller, the output end of the output lead 165 of the electric heating assembly is connected with the input end of the temperature controller, and the heating function of the composite side window glass can be controlled to be turned on or turned off by the temperature controller. The electric heating assembly is connected with the temperature controller in the embodiment, temperature parameters can be preset through the temperature controller, the heating start of the electric heating assembly is controlled, automatic ice and snow removal at low temperature is realized, and the electric heating assembly is particularly suitable for northern areas with severe environments.
As shown in fig. 4, preferably, another embodiment of the present invention provides a side window glass, compared to the above embodiments, in this embodiment, two sets of electric heating elements are adopted, the two sets of electric heating elements are connected in parallel, in this embodiment, the two sets of electric heating elements of the composite side window glass 10 are located at different positions of the composite side window glass, taking a vertical center line of the composite side window glass 10 as a boundary, the first set of electric heating elements is located at a left half portion of the composite side window glass 10, and the second set of electric heating elements is located at a right half portion of the composite side window glass 10. The input lead 164 of the first group of electric heating components is connected with the output end of the first temperature controller, the output lead 165 of the first electric heating component is connected with the input end of the first temperature controller, and the first group of electric heating components are controlled by the first temperature controller; the input lead 164 of the second group of electric heating components is connected with the output end of the second temperature controller, the output lead 165 of the second group of electric heating components is connected with the input end of the second temperature controller, and the second group of electric heating components are controlled by the second temperature controller. In other embodiments, the number of the electric heating assemblies may also be more than two, the electric heating assemblies may be arranged according to the area size and specific use requirements of the composite side window glass 10, and the number, the type and the layout of each component in each electric heating assembly may be the same or different. Because the area of combined type side window glass is great, and high-speed train operation scope is wider, consequently probably appear the phenomenon that there is snow, frost in the partial region of train side window, through set up electric heating assemblies on the combined type side window subregion, control the electric heating assemblies in each region respectively, can more pertinent get rid of the ice and snow frost on the side window, it is more energy-concerving and environment-protective.
Preferably, another embodiment of the present invention provides a side window glass, compared with the above embodiments, the diameter of the heating wire 161 in this embodiment is 0.1-0.2 mm. If the diameter of the heating wire 161 is too small, the wire is easily broken at the wire laying stage of the film, so that the electric heating assembly cannot work normally; if the diameter of the heating wire 41 is too thick, it will occupy more film space, and the first film layer 3 cannot firmly bond the first glass layer 11 and the second glass layer 13 with the antireflection film coating 17; when the diameter of the heating wire 161 is 0.1-0.2mm, the long-term effective operation of the electric heating assembly can be ensured, and the first film layer 12 can have good bonding capability. Preferably, the heating wire 161 in this embodiment is preferably a tungsten heating wire. The heating wires dispersed in the first film layer 12 are inconvenient to overhaul, the service life of the composite side window glass is generally more than 10 years, and the service environment of the composite side window glass is mostly harsh natural environment, so that the heating wires 161 are required to have sufficient stability and corrosion resistance, the tungsten heating wires have good plasticity, the structure of the composite side window glass is not easy to change when the composite side window glass is used at high temperature, and the corrosion resistance is strong, so that the composite side window glass is particularly suitable for 380 type high-speed locomotive composite side window glass.
Preferably, another embodiment of the present invention provides a side window glass, compared with the above embodiments, the first glass layer 11 on the side window glass 10 of the present embodiment is a chemically tempered glass layer, and the surface stress of the chemical glass layer is 700-900MPa, and the thickness is 4-9mm, and the chemically tempered glass layer with the antireflection film 17 not only has better light transmittance, but also has excellent impact strength and sufficient supporting capability, so as to ensure that the side window of the high-speed locomotive meets the design surface type. In this embodiment, the second glass layer 13 and the third glass layer 14 are physically tempered glass layers, the surface stress of the physically tempered glass layers is 70-100MPa, and the thickness of the physically tempered glass layers is 4-8 mm. In the embodiment, the chemically tempered glass is used as the first glass layer 11 (the outermost glass) of the side window glass 10, and the impact strength, the bending strength and the thermal shock resistance of the chemically tempered glass are 3-5 times of those of common glass, so that the running safety of the high-speed locomotive is improved. In addition, the inner layers (i.e. the second glass layer 13 and the third glass layer 14) of the side window glass 10 are physically tempered glass, and the surface stress of the physically tempered glass is far smaller than that of the chemically tempered glass, so that passengers of the high-speed locomotive can conveniently escape by breaking the side window glass 10 in a dangerous situation.
Preferably, in another embodiment of the present invention, compared to the above embodiments, the first film layer 12 and the second film layer 15 of the present embodiment are one of a polyurethane film layer and a polyvinyl butyral (PVB) film layer. The thickness of the first film layer 12 and the second film layer 15 is 0.3-1.2 mm. The films used for the first film layer 12 and the second film layer 15 have good weather resistance. The first film layer 12 with the thickness of 0.3-1.2mm can not only embed the heating wire 161 but also meet the adhesion force required for bonding the chemical toughened glass layer (the first glass layer 11) coated with the antireflection film 17 with the physical toughened glass layer (the second glass layer 13).
Preferably, the antireflection film 17 is used for increasing the transmission of light and improving the visibility of the field of vision of locomotive drivers and passengers; the antireflection film 17 is silicon dioxide (SiO)2) Or di-oxygenTitanium (TiO)2) The single layer film of (2) may be SiO2/TiO2Or TiO2/SiO2A bilayer film, which may also be SiO2/TiO2/SiO2A multilayer composite film; the refractive index of the antireflection film can be continuously adjusted, so that the refractive index of the body material is effectively reduced, the side window glass has high light transmittance, and meanwhile, Si-OH (or Ti-OH) groups in the coating can be polymerized into a Si-O-Si (or Ti-O-Ti) cross-linked network structure through proper heat treatment, so that the composite side window glass has good stability in environment resistance (seawater, moisture, acid-base corrosion resistance and the like) and high hardness, and the environment resistance stability of the composite side window glass 10 can be further improved and the reflectivity of sunlight on the surface of the side window glass can be reduced by adopting the composite antireflection film.
Preferably, another embodiment of the present invention provides a side window glass, in which, compared with the above embodiments, a molecular sieve drying agent is filled in a hollow layer formed between the second glass layer 13 and the third glass layer 14 and the spacer 18, so as to ensure the dryness of the hollow layer.
In conclusion, the side window glass provided by the invention has excellent optical performance, mechanical performance, thermal performance and the like, is suitable for being applied to high-speed trains, and improves the running safety and running stability of the high-speed trains.
The invention also provides a preparation method of the composite side window glass, wherein the side window glass is the side window glass in the embodiment, and the preparation method specifically comprises the following steps:
preparing a first glass layer, a second glass layer and a third glass layer;
in this step, the first glass layer is preferably a chemically tempered glass layer, and the second glass layer and the third glass layer are preferably physically tempered glass layers. The method specifically comprises the following steps:
according to the design surface type of the composite side window glass, the glass is cut and ground into shape, and then a chemical toughening technology is utilized to prepare a chemical toughening glass layer. The surface stress of the prepared chemically tempered glass is 700-900MPa, and the thickness is preferably 4-8 mm.
According to the design surface type of the composite side window glass, the glass used for the second glass layer and the third glass layer is respectively cut and ground to be shaped, then the physical toughened glass is respectively prepared by utilizing the conventional physical toughening technology, so that the second glass layer and the third glass layer are respectively the physical toughened glass layers, the surface stress of the physical toughened glass layers is 70MPa-100MPa, the granularity is 30-40, and the thickness is preferably 4-6 mm.
Preparing a first glass layer coated with the antireflection film;
in the step, the antireflection film is prepared by adopting a sol-gel method, wherein the main reaction raw material for preparing the antireflection film is Si (OC)2H5)4Or Ti (OC)2H5)4Adding solvent and catalyst in proper proportion, reacting at 30-40 deg.C for 4hr, aging at room temperature for 5-20 days to obtain SiO2And/or TiO2And (3) sol.
Adopting a high-speed spin coating method or a pulling method to prepare the prepared nano porous SiO2And/or TiO2Coating the sol on the second side surface of the chemically tempered glass, and firstly standing the coating obtained by spin coating or pulling in a clean and dry room temperature environment for 1hr, then pretreating at 50-70 ℃ for 30min, and finally performing heat treatment at 100-150 ℃ for 4hr to obtain the chemically tempered glass layer with an antireflection film coating (with the refractive index of 1.13-1.40 (at 300-2500 nm)), wherein the thickness of the antireflection film coating is 100-500nm, and the thickness of the chemically tempered glass is preferably 4-8 mm.
Step three, preparing an anti-splashing film for the composite side window;
the anti-splashing film is manufactured according to the design surface type of the composite side window glass, is thicker, preferably 0.5-1.5mm, and is used for improving the overall safety of the side window glass, so that the overall integrity of the side window of the high-speed locomotive is kept when the side window of the high-speed locomotive is impacted by the outside, and simultaneously, the safety of first-class passengers of a driver is prevented from being threatened by broken slag generated when the glass is broken; the specific preparation method of the anti-splash film adopts a preparation method of a common composite side window anti-splash film.
Step four, preparing a first film layer and a second film layer
And selecting a film, and cutting the selected film according to the design size of the composite side window glass to obtain a first film layer and a second film layer. The film used for the first film layer is hot melt adhesive with good weather resistance, and can also be polyurethane or polyvinyl butyral (PVB) film. The second film layer is made of hot melt adhesive with good weather resistance, and can also be made of polyurethane or polyvinyl butyral (PVB) film; the film is cut according to the design size of the composite side window glass, and the film is preferably a polyurethane film in the embodiment, and the thickness of the film is preferably 0.3-1.2 mm.
Step five, laying an electric heating component in the first film layer, specifically as follows,
designing the consumption and the layout of the electric heating wire, the input bus bar, the output bus bar, the input lead and the output lead according to the heating power requirement:
in this step, a group of electric heating assemblies is designed, the electric heating wires in the electric heating assemblies are uniformly dispersed in the first film layer, and two bus bars and two wires are adopted, namely a first bus bar, a second bus bar, an input wire and an output wire, wherein the first bus bar is arranged along the position of the input end of the electric heating wire, the second bus bar is arranged along the position of the output end of each electric heating wire, so that each electric heating wire is connected in parallel, the output end of the input wire is connected with the input end of the first bus bar, and the input end of the output wire is connected with the output end of the second bus bar;
lay heating wire, first busbar, second busbar, input wire and output wire on first film layer, specifically include:
laying silks on the films of the first film layer by using a silk laying machine:
adjusting the wire distribution distance and other wire distribution parameters of the wire distribution machine according to the designed quantity and layout of the electric heating wires; placing the cut film on a roller of a wire laying machine, adjusting the curvature of an electric heating wire, starting laying wires, and leading out joints at two ends of the electric heating wire after the laying wires are finished;
lay first busbar and second busbar on the film of first film layer, be connected the one end and the first busbar of heating wire, the other end is connected with the second busbar, specifically is: flatly placing the film of the first film layer with the wires on an operation table, and sticking the first bus bar and the second bus bar at the preset position of the first film layer by using conductive silver paste, so that one end of the electric heating wire is bonded with the first bus bar, and the other end of the electric heating wire is bonded with the second bus bar; connecting the input end of the first bus bar with an input lead, and connecting the output end of the second bus bar with an output lead; the arrangement and connection sequence of the electric heating wire, the first bus bar, the second bus bar, the input lead and the output lead can be adjusted according to requirements;
and extending the input lead and the output lead out of the first film layer to obtain the first film layer provided with the electric heating assembly.
Laying the first film layer with the electric heating assembly on the first side surface of the chemically tempered glass layer with the antireflection film coating on the outer side surface, and enabling the input lead and the output lead to extend out of the chemically tempered glass layer; laying a second glass layer on the first film layer to obtain a first component; and then putting the first component into a vacuum bag, and vacuumizing.
Step seven, laying the anti-splashing film on the third glass layer through the second film layer to obtain a second component; then putting the second component into a vacuum bag, and vacuumizing;
step eight, after vacuumizing, putting the vacuum bag provided with the component I and the vacuum bag provided with the component II in the step six and the step seven into an autoclave together, reacting for 1.5-2.5h at the temperature of 125-130 ℃ and under the pressure of 1-1.5Mpa, and removing the vacuum bags; pouring a high-performance molecular sieve into the aluminum alloy spacing bar, and then bonding the aluminum alloy spacing bar with the outer edges of the second glass layer of the first component and the third glass layer of the second component through the high-performance weather-proof sealing rubber strip; then, further compressing the hollow fiber by virtue of hollow fiber equipment to obtain a hollow layer; and finally, uniformly coating and sealing the periphery of the side window glass with silicone weather-resistant sealant by using gluing equipment to obtain the side window glass for the composite high-speed locomotive.
In the step, as the heating wires are distributed in the first film layer, if the reaction temperature is too high and the reaction time is too long, the heating wires are easy to wander away and deviate from the designed position, so that the phenomena of uneven heating, even local burning of the heating wires, circuit breaking and the like occur; if the heating temperature is too low and the reaction time is too short, the film can not reach the optimal viscosity, so that the superstrong chemical toughened glass layer is not firmly bonded, and the service life of the composite side window glass is shortened; the reaction is carried out for 0.5-1.5h at the temperature of 125-.
The preparation method of combined type side window glass that this embodiment provided prepares out and is provided with the combined type side window glass of heating wire on first film layer, this combined type side window glass's heating wire passes through the wire and is connected with external power, realize not influencing under the normal printing opacity's of combined type side window glass condition, carry out the electrical heating for superstrong chemical toughened glass, thereby the effectual snow or the frost of getting rid of combined type side window glass surface, avoided because the luminousness that causes such as snow or frost of freezing on side window glass surface is low, influence the driver, the field of vision of passenger, can threaten the safe phenomenon of operation of locomotive when serious, combined type side window glass's life has been prolonged. The method provided by the embodiment of the invention is simple to operate, suitable for batch production, capable of automatic operation, high in efficiency and stable in quality.
Preferably, the present embodiment provides a method for manufacturing a composite side window glass, which is different from the method of the previous embodiment only in the amount and layout of the electrical heating elements and the bus bars disposed on the first film layer. In the present embodiment, two groups of electric heating elements are designed according to the heating power requirement, such as the layout of two groups of electric heating wires shown in fig. 4, which is defined by the vertical center line of the composite side window glass, the first group of electric heating elements is located on the left half portion of the composite side window glass, and the second group of electric heating elements is located on the right half portion of the composite side window glass. The design method of the two electric heating assemblies is the same as that of the electric heating assembly in the previous embodiment, in other embodiments, the number of the electric heating assemblies can be more than two, the electric heating assemblies can be arranged according to the area size of the composite side window glass and the specific use requirement, and the number, the type and the layout of each part in each electric heating assembly can be the same or different; because the area of combined type side window glass is great, and high-speed train operation scope is wider, consequently probably appear the phenomenon that there is snow, frost in the partial region of train side window, through set up electric heating assemblies on the combined type side window subregion, control the electric heating assemblies in each region respectively, can more pertinent get rid of the ice and snow frost on the side window, it is more energy-concerving and environment-protective.
In conclusion, the composite side window glass prepared by the invention has excellent mechanical property, thermal property, optical property and the like, and can ensure the driving safety and stable operation of a high-speed train.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims (9)

1. A composite side window glass for a high speed locomotive, the side window glass comprising: an electric heating component, a first glass layer, a second glass layer and a third glass layer which are sequentially overlapped, wherein,
a first film layer is arranged between the first glass layer and the second glass layer, the first glass layer is provided with a first side surface and a second side surface opposite to the first side surface, the first side surface of the first glass layer is bonded with the first film layer, and the second side surface of the first glass layer is coated with an antireflection film;
a spacer is bonded between the edge of the second glass layer and the edge of the third glass layer; hollow layers are formed among the second glass layer, the third glass layer and the spacing bars;
the third glass layer is provided with a first side surface and a second side surface opposite to the first side surface, the hollow layer is formed between the first side surface of the third glass layer and the second glass layer, a splash-proof film for preventing glass from splashing is bonded to the second side surface of the third glass layer, and a second film layer is arranged between the splash-proof film and the third glass layer;
the electric heating assembly is arranged on the first film layer and used for being connected with an external power supply to heat the first glass layer.
2. The composite side window glass of claim 1, wherein the electrical heating assembly comprises a heating wire, a first bus bar, a second bus bar, an input lead, and an output lead; wherein,
the number of the electric heating wires is at least one, and the electric heating wires are arranged in the first film layer;
the first bus bar and the second bus bar are arranged on the first film layer; the output end of the first bus bar is connected with the input end of the electric heating wire, and the input end of the second bus bar is connected with the output end of the electric heating wire;
the output end of the input lead is connected with the input end of the first bus bar, and the output end of the input lead extends out of the side window glass;
the input end of the output lead is connected with the output end of the second bus bar, and the input end of the output lead extends out of the side window glass.
3. The composite side window of claim 2, wherein there are at least two groups of electrical heating elements, and the at least two groups of electrical heating elements are connected in parallel.
4. The composite side window glass of claim 3, wherein the heating wire is a tungsten heating wire, and the diameter of the tungsten heating wire is 0.1-0.2 mm.
5. The composite side window glass of claim 4, wherein the first glass layer is a chemically tempered glass layer; the surface stress of the chemical toughened glass layer is 700-900MPa, and the thickness of the chemical toughened glass layer is 4-8 mm.
6. The composite side window glass of claim 5, wherein the second glass layer and the third glass layer are physically tempered glass layers; the surface stress of the physical toughened glass layer is 70-100MPa, and the thickness of the physical toughened glass layer is 4-8 mm.
7. The composite side window glass of claim 6, wherein the first film layer is one of a polyurethane film layer, a polyvinyl butyral (PVB) film layer; the thickness of the first film layer is 0.3-1.2 mm;
the second film layer is one of a polyurethane film layer and a polyvinyl butyral (PVB) film layer; the thickness of the second film layer is 0.3-1.2 mm.
8. The composite side window glass of claim 7, wherein the anti-reflective film is SiO2Single layer film, TiO2Single layer film, SiO2/TiO2Bilayer film and SiO2/TiO2/SiO2One of a multilayer composite film;
the thickness of the antireflection film is 100-500 nm.
9. The composite sidelite glass of claim 8, wherein said hollow layer is filled with a molecular sieve desiccant to ensure dryness of said hollow layer.
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