GB2011377A - Process and Apparatus for Bending Glass - Google Patents
Process and Apparatus for Bending GlassInfo
- Publication number
- GB2011377A GB2011377A GB7848723A GB7848723A GB2011377A GB 2011377 A GB2011377 A GB 2011377A GB 7848723 A GB7848723 A GB 7848723A GB 7848723 A GB7848723 A GB 7848723A GB 2011377 A GB2011377 A GB 2011377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- dies
- glass
- prior
- preheated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- C03B23/0307—Press-bending involving applying local or additional heating, cooling or insulating means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/004—Tempering or quenching glass products by bringing the hot glass product in contact with a solid cooling surface, e.g. sand grains
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
An untempered sheet of glass is given a predetermined curvature by means of preheated forming dies (3, 4 in Fig. 1). The glass sheet (1) is not preheated or is heated only to a relatively low temperature prior to being inserted between the dies. Heat transfer from the dies to the glass prior to closure of the dies produces or assists in producing in the thickness of the glass sheet a transitory thermal stress gradient which gives resistance to breakage under bending forces. The absence of high temperature preheating of the sheet is conducive to a more predictable stress distribution pattern over the area of the sheet prior to bending. The process enables predetermined sheet curvatures to be achieved with higher degrees of accuracy. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7848723A GB2011377B (en) | 1977-12-30 | 1978-12-15 | Process and apparatus for bending glass |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5434377 | 1977-12-30 | ||
GB7848723A GB2011377B (en) | 1977-12-30 | 1978-12-15 | Process and apparatus for bending glass |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2011377A true GB2011377A (en) | 1979-07-11 |
GB2011377B GB2011377B (en) | 1982-06-09 |
Family
ID=26267445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7848723A Expired GB2011377B (en) | 1977-12-30 | 1978-12-15 | Process and apparatus for bending glass |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2011377B (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2165232A (en) * | 1984-09-19 | 1986-04-09 | Autoroofs Ltd | Curved vehicle window panels |
EP0277074A1 (en) * | 1987-01-29 | 1988-08-03 | Saint-Gobain Vitrage International | Volumes of glass tempered by contact with reinforced rims |
EP0328442A2 (en) * | 1988-02-06 | 1989-08-16 | Saint-Gobain Vitrage International | Method and apparatus for making a bent sheet of glass |
EP0415827A1 (en) * | 1989-09-01 | 1991-03-06 | Saint Gobain Vitrage International | Apparatus for bending glass-sheets |
EP0429347A1 (en) * | 1989-11-17 | 1991-05-29 | Nippon Sheet Glass Co. Ltd. | Method of and system for bending sheet glass |
US5122177A (en) * | 1990-01-11 | 1992-06-16 | Nippon Sheet Glass Co., Ltd. | Method of and system for pressing sheet glass |
US5139552A (en) * | 1989-12-05 | 1992-08-18 | Nippon Sheet Glass Co., Ltd. | Apparatus for bending and tempering sheet glass |
EP0677489A2 (en) * | 1994-04-15 | 1995-10-18 | Pilkington Glass Limited | Bending and tempering glass sheets |
US5634957A (en) * | 1995-06-07 | 1997-06-03 | Pilkington Glass Limited | Apparatus for and method for bending glass sheets |
US5645621A (en) * | 1995-06-07 | 1997-07-08 | Pilkington Glass Limited | Apparatus for and method of bending glass sheets |
US5695537A (en) * | 1995-06-07 | 1997-12-09 | Pilkington Glass Limited | Apparatus for and method of bending glass sheets |
US5882370A (en) * | 1995-06-07 | 1999-03-16 | Pilkington Glass Limited | Method of bending glass sheets |
CN1128767C (en) * | 1995-06-07 | 2003-11-26 | 英国皮尔金顿有限公司 | Apparatus and method for bending glass sheets |
-
1978
- 1978-12-15 GB GB7848723A patent/GB2011377B/en not_active Expired
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2165232A (en) * | 1984-09-19 | 1986-04-09 | Autoroofs Ltd | Curved vehicle window panels |
EP0277074A1 (en) * | 1987-01-29 | 1988-08-03 | Saint-Gobain Vitrage International | Volumes of glass tempered by contact with reinforced rims |
FR2610316A1 (en) * | 1987-01-29 | 1988-08-05 | Saint Gobain Vitrage | TEMPERED GLASS VOLUMES BY CONTACT WITH REINFORCED EDGE CONSTRAINTS |
EP0328442A2 (en) * | 1988-02-06 | 1989-08-16 | Saint-Gobain Vitrage International | Method and apparatus for making a bent sheet of glass |
EP0328442A3 (en) * | 1988-02-06 | 1990-10-03 | Saint-Gobain Vitrage | Method and apparatus for making a bent sheet of glass |
EP0415827A1 (en) * | 1989-09-01 | 1991-03-06 | Saint Gobain Vitrage International | Apparatus for bending glass-sheets |
EP0429347A1 (en) * | 1989-11-17 | 1991-05-29 | Nippon Sheet Glass Co. Ltd. | Method of and system for bending sheet glass |
US5149352A (en) * | 1989-11-17 | 1992-09-22 | Nippon Sheet Glass Co., Ltd. | Method of and system for bending sheet glass |
US5139552A (en) * | 1989-12-05 | 1992-08-18 | Nippon Sheet Glass Co., Ltd. | Apparatus for bending and tempering sheet glass |
US5122177A (en) * | 1990-01-11 | 1992-06-16 | Nippon Sheet Glass Co., Ltd. | Method of and system for pressing sheet glass |
EP0677489A2 (en) * | 1994-04-15 | 1995-10-18 | Pilkington Glass Limited | Bending and tempering glass sheets |
EP0677489A3 (en) * | 1994-04-15 | 1996-01-24 | Pilkington Glass Ltd | Bending and tempering glass sheets. |
US5755845A (en) * | 1994-04-15 | 1998-05-26 | Pilkington Glass Limited | Method and apparatus for bending and tempering glass sheets |
US5634957A (en) * | 1995-06-07 | 1997-06-03 | Pilkington Glass Limited | Apparatus for and method for bending glass sheets |
US5645621A (en) * | 1995-06-07 | 1997-07-08 | Pilkington Glass Limited | Apparatus for and method of bending glass sheets |
US5695537A (en) * | 1995-06-07 | 1997-12-09 | Pilkington Glass Limited | Apparatus for and method of bending glass sheets |
US5882370A (en) * | 1995-06-07 | 1999-03-16 | Pilkington Glass Limited | Method of bending glass sheets |
CN1128767C (en) * | 1995-06-07 | 2003-11-26 | 英国皮尔金顿有限公司 | Apparatus and method for bending glass sheets |
Also Published As
Publication number | Publication date |
---|---|
GB2011377B (en) | 1982-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |