IE43523L - Thermal treatment of glass - Google Patents
Thermal treatment of glassInfo
- Publication number
- IE43523L IE43523L IE761802A IE180276A IE43523L IE 43523 L IE43523 L IE 43523L IE 761802 A IE761802 A IE 761802A IE 180276 A IE180276 A IE 180276A IE 43523 L IE43523 L IE 43523L
- Authority
- IE
- Ireland
- Prior art keywords
- glass
- fluidised
- particles
- degrees
- thermal treatment
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0413—Stresses, e.g. patterns, values or formulae for flat or bent glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/052—Tempering or quenching glass products using gas for flat or bent glass sheets being in a vertical position
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/02—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
- C03B29/025—Glass sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mathematical Physics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Glass is tempered by contact with solid particles fluidised with a gas to ensure that transfer from the glass the glass to the particles. The fluidised material is kept in a steady state of uniform fluidisation. Pref. the fluidised bed is maintained at 30-150 degrees C, and has a mass/unit volume of 0.3-3.97 (0.3-2.35) g/cc, and the particles have a mean particle size of 5-120 mu. The state of steady flow is at 0.045-5.61 cm/sec. The glass is doda-time glass 2.3-12 mm thick and is heated to 610-680 degrees C prior to quenching in the fluidised bed. Tempering streses are set up in the glass which are adequate and which reduces the loss by fracture, the surface damage being negligible.
[DE2638038A1]
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB35769/75A GB1556051A (en) | 1975-08-29 | 1975-08-29 | Thermal treatment of glass |
| GB3577075 | 1975-08-29 | ||
| GB2412376 | 1976-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE43523L true IE43523L (en) | 1977-02-28 |
| IE43523B1 IE43523B1 (en) | 1981-03-25 |
Family
ID=27258307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1802/76A IE43523B1 (en) | 1975-08-29 | 1976-08-13 | Improvements in or relating to the thermal treatment of glass |
Country Status (29)
| Country | Link |
|---|---|
| JP (1) | JPS5843334B2 (en) |
| AR (1) | AR212453A1 (en) |
| AT (1) | AT365549B (en) |
| BG (1) | BG29719A3 (en) |
| CA (1) | CA1069700A (en) |
| CH (1) | CH615654A5 (en) |
| CS (1) | CS212240B2 (en) |
| DD (1) | DD125942A5 (en) |
| DE (1) | DE2638038C3 (en) |
| DK (1) | DK388976A (en) |
| EG (1) | EG12095A (en) |
| ES (1) | ES451057A1 (en) |
| FI (1) | FI60695C (en) |
| GR (1) | GR61298B (en) |
| IE (1) | IE43523B1 (en) |
| IL (1) | IL50268A (en) |
| IN (1) | IN144840B (en) |
| IT (1) | IT1069700B (en) |
| KE (1) | KE3229A (en) |
| LU (1) | LU75680A1 (en) |
| NL (1) | NL175054C (en) |
| NO (1) | NO762937L (en) |
| NZ (1) | NZ181775A (en) |
| PT (1) | PT65527B (en) |
| RO (1) | RO75206A (en) |
| SE (1) | SE420829B (en) |
| TR (1) | TR19806A (en) |
| YU (1) | YU39246B (en) |
| ZM (1) | ZM11076A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1556052A (en) * | 1976-06-10 | 1979-11-21 | Pilkington Brothers Ltd | Fluidised bed methods and apparatus for thermally treating glass |
| IE47509B1 (en) * | 1977-12-09 | 1984-04-04 | Pilkington Brothers Ltd | Method and apparatus for thermally thoughening a glass sheet |
| LU80019A1 (en) * | 1978-07-21 | 1980-02-14 | Bfg Glassgroup | PROCESS AND DEVICE FOR HEAT TREATING GLASS AND PRODUCT OBTAINED |
| JPS61259620A (en) * | 1985-05-14 | 1986-11-17 | 松下電器産業株式会社 | Mixer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE752981C (en) * | 1935-07-31 | 1953-02-02 | Corning Glass Works | Process for hardening glass |
| US2670573A (en) * | 1950-02-13 | 1954-03-02 | Jr Frederick W Sullivan | Thermal treatment of ceramic objects |
| BE539784A (en) * | 1954-07-16 |
-
1976
- 1976-08-13 IE IE1802/76A patent/IE43523B1/en unknown
- 1976-08-16 IN IN1487/CAL/76A patent/IN144840B/en unknown
- 1976-08-16 IL IL50268A patent/IL50268A/en unknown
- 1976-08-16 NZ NZ181775A patent/NZ181775A/en unknown
- 1976-08-24 ZM ZM110/76A patent/ZM11076A1/en unknown
- 1976-08-24 CA CA259,724A patent/CA1069700A/en not_active Expired
- 1976-08-24 DE DE2638038A patent/DE2638038C3/en not_active Expired
- 1976-08-25 YU YU2074/76A patent/YU39246B/en unknown
- 1976-08-26 NO NO762937A patent/NO762937L/no unknown
- 1976-08-26 NL NLAANVRAGE7609488,A patent/NL175054C/en not_active IP Right Cessation
- 1976-08-26 BG BG034076A patent/BG29719A3/en unknown
- 1976-08-26 GR GR51551A patent/GR61298B/en unknown
- 1976-08-26 TR TR19806A patent/TR19806A/en unknown
- 1976-08-27 DK DK388976A patent/DK388976A/en not_active Application Discontinuation
- 1976-08-27 DD DD194501A patent/DD125942A5/xx unknown
- 1976-08-27 IT IT69105/76A patent/IT1069700B/en active
- 1976-08-27 PT PT65527A patent/PT65527B/en unknown
- 1976-08-27 CS CS765593A patent/CS212240B2/en unknown
- 1976-08-27 FI FI762468A patent/FI60695C/en not_active IP Right Cessation
- 1976-08-27 AR AR264480A patent/AR212453A1/en active
- 1976-08-27 CH CH1091876A patent/CH615654A5/en not_active IP Right Cessation
- 1976-08-27 LU LU75680A patent/LU75680A1/xx unknown
- 1976-08-27 ES ES451057A patent/ES451057A1/en not_active Expired
- 1976-08-27 AT AT0637076A patent/AT365549B/en not_active IP Right Cessation
- 1976-08-27 SE SE7609544A patent/SE420829B/en not_active IP Right Cessation
- 1976-08-28 RO RO7687398A patent/RO75206A/en unknown
- 1976-08-29 EG EG534/76A patent/EG12095A/en active
- 1976-08-30 JP JP51102724A patent/JPS5843334B2/en not_active Expired
-
1982
- 1982-08-14 KE KE3229A patent/KE3229A/en unknown
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