WO2019008495A4 - Method for bending and laminating thin glass with pressing plate - Google Patents
Method for bending and laminating thin glass with pressing plate Download PDFInfo
- Publication number
- WO2019008495A4 WO2019008495A4 PCT/IB2018/054885 IB2018054885W WO2019008495A4 WO 2019008495 A4 WO2019008495 A4 WO 2019008495A4 IB 2018054885 W IB2018054885 W IB 2018054885W WO 2019008495 A4 WO2019008495 A4 WO 2019008495A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- thin glass
- pressing plate
- bending
- thin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
-
- 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
- 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
- B32B17/10082—Properties of the bulk of a glass sheet
- B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
-
- 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
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
- B32B17/1088—Making laminated safety glass or glazing; Apparatus therefor by superposing a plurality of layered products
-
- 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
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
- B32B17/10889—Making laminated safety glass or glazing; Apparatus therefor shaping the sheets, e.g. by using a mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Thin glass is finding increasing application in laminates. However, conventional processing methods have short coming when applied to very thin glass. The present invention provides for an improved method of bending and laminating thin glass layers. The present invention allows to multiple sheets or layers of thin glass to get stacked onto a single mold. A male full surface pressing plate, comprising a bent sheet of thicker glass, is placed over the sheets of thin glass. As the glass is heated the added mass of the pressing plate aids in bending. The pressing plate can also be used in the lamination process to prevent wrinkles during laminate. The pressing plate is comprised of a glass composition having a higher glass transition point than the thin glass such that the pressing plate will not soften or deform as the thin glass is bent. The pressing plate is formed by conventional glass bending methods.
Claims
1. A method for bending thin glass, comprising the steps of:
a) providing a bending mold and a pressing plate;
b) providing at least one thin glass layer;
c) placing the at least one thin glass layer onto the bending mold;
d) applying the pressing plate over top of the at least one thin glass layer ;
e) heating the pressing plate to at least the softening point of the thin glass; and f) allowing the glass to sag to the desired shape.
2. The method of Claim 1 further comprising the step of placing one or more sheet of glass onto the mold prior to the thin glass.
3. The method of Claim 1 further comprising the step of chemically tempering the thin glass before bending the glass layers.
4. The method of Claim 1 wherein a full surface female mold is used.
5. The method of Claim 1 wherein male pressing plate is used.
6. The method of Claim 1 wherein the thin glass has a thickness of less than about 1.6 mm.
7. The method of Claim 1 wherein the size of the pressing plate is slightly larger than the thin glass.
8. The method of Claim 1 wherein the pressing plate is comprised of a glass composition having a higher glass transition temperature than that of the thin glass.
9. The method of Claim 1 wherein the pressing plate is comprised of an infrared absorbing glass composition.
10. The method of Claim 1 wherein the thin glass is an aluminosilicate glass composition.
11. The method of Claim 1 wherein the thin glass is a borosilicate glass composition.
12. A method for laminating glazings having thin glass layers comprising the steps of:
a) providing at least one thin glass layer and placing at least one additional thin glass layer;
b) assembling the at least two thin glass layers and a plastic bonding interlay er between the at least two thin glass layers;
c) placing a pressing plate produced by the method of Claim 1 such that one of the pressing plate's major faces is in contact with the corresponding major face of the top thin glass layer;
d) enclosing the assembled laminate and evacuating the air from the enclosure; and e) applying heat and pressure to the assembly in a standard lamination process.
13. The method of Claim 12 wherein the thin glass is flat.
14. The method of Claim 12 wherein the thin glass is partially bent.
15. The method of Claim 12 wherein the thin glass is cold bent to the desired shape.
16. The laminate produced by the method of Claim 1.
17. The laminate produced by the method of Claim 12.
18. A vehicle comprising the glazing of Claim 16.
19. A vehicle comprising the glazing of Claim 17.
20. A fabrication process of a full surface pressing plate, comprising:
a) providing at least one glass sheet;
b) providing a pressing plate having a sufficiently higher glass transition temperature range than the at least one glass sheet, such that the pressing plate will maintain its shape at the temperature that the final glass sheet is formed;
c) providing a full surface bending mold of the glass surface; and
d) bending the high temperature glass to the shape on the mold.
21. The pressing plate produced by the process of Claim 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112018003400.3T DE112018003400T5 (en) | 2017-07-02 | 2018-07-02 | METHOD FOR BENDING AND LAMINATING THIN GLASS WITH A PRESSING PLATE |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762528129P | 2017-07-02 | 2017-07-02 | |
| US62/528,129 | 2017-07-02 | ||
| CONC2017/0009263A CO2017009263A1 (en) | 2017-09-13 | 2017-09-13 | Method for bending, curving and rolling thin glass with a plate press |
| CONC2017/0009263 | 2017-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2019008495A1 WO2019008495A1 (en) | 2019-01-10 |
| WO2019008495A4 true WO2019008495A4 (en) | 2019-04-04 |
Family
ID=62596733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2018/054885 WO2019008495A1 (en) | 2017-07-02 | 2018-07-02 | Method for bending and laminating thin glass with pressing plate |
Country Status (3)
| Country | Link |
|---|---|
| CO (1) | CO2017009263A1 (en) |
| DE (1) | DE112018003400T5 (en) |
| WO (1) | WO2019008495A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68919931T2 (en) * | 1988-07-18 | 1995-06-01 | Asahi Glass Co Ltd | Method and device for bending glass sheets for laminated glass. |
-
2017
- 2017-09-13 CO CONC2017/0009263A patent/CO2017009263A1/en unknown
-
2018
- 2018-07-02 DE DE112018003400.3T patent/DE112018003400T5/en not_active Withdrawn
- 2018-07-02 WO PCT/IB2018/054885 patent/WO2019008495A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CO2017009263A1 (en) | 2018-01-31 |
| WO2019008495A1 (en) | 2019-01-10 |
| DE112018003400T5 (en) | 2020-03-12 |
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