GB1124468A - Production of glass sheet - Google Patents
Production of glass sheetInfo
- Publication number
- GB1124468A GB1124468A GB54252/65A GB5425265A GB1124468A GB 1124468 A GB1124468 A GB 1124468A GB 54252/65 A GB54252/65 A GB 54252/65A GB 5425265 A GB5425265 A GB 5425265A GB 1124468 A GB1124468 A GB 1124468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vacuum pump
- molten metal
- parts
- tank bottom
- production
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/16—Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall
Abstract
To prevent defects, such as gas bubbles, on the underside of glass ribbon made by the float process, the molten metal 112 is contained in a tank 111 with refractory parts 126, 128 and a positive fluid differential pressure is established <PICT:1124468/C1/1> between at least some parts of the interior and exterior of the refractories. A subatmospheric pressure is preferably established below the refractory bricks 126 only over the hottest zones of the molten metal. As shown, the clay bricks 126 are secured by a clay cement 130 and conduits 131 pass through the tank bottom and are connected to a vacuum pump 134. In an alternative construction, holes in the tank bottom are covered by an outer shell which is connected to a vacuum pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42061664A | 1964-12-23 | 1964-12-23 | |
| US43067965A | 1965-02-05 | 1965-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1124468A true GB1124468A (en) | 1968-08-21 |
Family
ID=27024936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB54252/65A Expired GB1124468A (en) | 1964-12-23 | 1965-12-22 | Production of glass sheet |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE674197A (en) |
| DE (1) | DE1496018A1 (en) |
| FR (1) | FR1454699A (en) |
| GB (1) | GB1124468A (en) |
| NL (1) | NL6515659A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008041661A1 (en) * | 2008-08-28 | 2010-03-04 | Schott Ag | Method for the production of flat glass in a float bath apparatus, comprises melting glass in a melting end, pouring the glass melt on a fluid metal bath and then forming to a glass strip, where the apparatus comprises a float bath base |
| CN102390919A (en) * | 2011-08-15 | 2012-03-28 | 信义节能玻璃（芜湖）有限公司 | Method for eliminating air bubbles at bottom of tin bath and tin bath bottom vacuum pumping system |
| CN105668996A (en) * | 2016-01-08 | 2016-06-15 | 安徽华光光电材料科技集团有限公司 | Tank bottom vacuum pumping device of total oxygen float glass molding production line |
-
1965
- 1965-11-05 FR FR37443A patent/FR1454699A/en not_active Expired
- 1965-12-02 NL NL6515659A patent/NL6515659A/xx unknown
- 1965-12-17 DE DE19651496018 patent/DE1496018A1/en active Pending
- 1965-12-22 BE BE674197D patent/BE674197A/xx unknown
- 1965-12-22 GB GB54252/65A patent/GB1124468A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008041661A1 (en) * | 2008-08-28 | 2010-03-04 | Schott Ag | Method for the production of flat glass in a float bath apparatus, comprises melting glass in a melting end, pouring the glass melt on a fluid metal bath and then forming to a glass strip, where the apparatus comprises a float bath base |
| DE102008041661B4 (en) * | 2008-08-28 | 2011-12-08 | Schott Ag | Process for the production of flat glass and float bath apparatus |
| CN102390919A (en) * | 2011-08-15 | 2012-03-28 | 信义节能玻璃（芜湖）有限公司 | Method for eliminating air bubbles at bottom of tin bath and tin bath bottom vacuum pumping system |
| CN105668996A (en) * | 2016-01-08 | 2016-06-15 | 安徽华光光电材料科技集团有限公司 | Tank bottom vacuum pumping device of total oxygen float glass molding production line |
Also Published As
| Publication number | Publication date |
|---|---|
| BE674197A (en) | 1966-06-22 |
| NL6515659A (en) | 1966-06-24 |
| DE1496018A1 (en) | 1969-02-27 |
| FR1454699A (en) | 1966-02-11 |
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