BE786807A - Automatically quenching glass - by optically observing the change in stresses as the glass is heated - Google Patents
Automatically quenching glass - by optically observing the change in stresses as the glass is heatedInfo
- Publication number
- BE786807A BE786807A BE786807A BE786807A BE786807A BE 786807 A BE786807 A BE 786807A BE 786807 A BE786807 A BE 786807A BE 786807 A BE786807 A BE 786807A BE 786807 A BE786807 A BE 786807A
- Authority
- BE
- Belgium
- Prior art keywords
- glass
- stresses
- heated
- change
- optical
- Prior art date
Links
- 239000011521 glass Substances 0.000 title abstract 8
- 238000010791 quenching Methods 0.000 title abstract 3
- 230000000171 quenching effect Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 4
- 230000003287 optical effect Effects 0.000 abstract 4
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/241—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet by photoelastic stress analysis
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Method comprises quantitatively measuring the change in stresses as the glass is heated using an optical method of observation. This method directly measures the point at which the glass is ready for quenching and is superior to other indirect methods e.g. glass temp measurement or heating time. No contact is necessary with the glass. The same appts. may be used to treat different glasses of different sizes. The appts. comprises a radiation source, a polariser, and optical bloc, the glass to be quenched a detection system consisting of an optical device, a second polariser, a quartz. wedge for measuring the optical delay an analyser and a calibrator which orders the start of the quench either manually or automatically.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE786807A BE786807A (en) | 1972-07-27 | 1972-07-27 | Automatically quenching glass - by optically observing the change in stresses as the glass is heated |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE786807A BE786807A (en) | 1972-07-27 | 1972-07-27 | Automatically quenching glass - by optically observing the change in stresses as the glass is heated |
Publications (1)
Publication Number | Publication Date |
---|---|
BE786807A true BE786807A (en) | 1972-11-16 |
Family
ID=3859989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE786807A BE786807A (en) | 1972-07-27 | 1972-07-27 | Automatically quenching glass - by optically observing the change in stresses as the glass is heated |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE786807A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2902881A1 (en) * | 2006-06-27 | 2007-12-28 | Stein Heurtey | FLAT GLASS PRODUCTION FACILITY WITH CONSTRAINTS MEASURING EQUIPMENT, AND METHOD OF CONDUCTING A FLAT GLASS RECOVERY PLANT. |
DE102008045416A1 (en) * | 2008-09-02 | 2010-03-04 | Arcon-Dur Sicherheitsglas Gmbh & Co. Kg | Apparatus and method for producing thermally toughened glass sheets and thermally toughened glass sheet |
-
1972
- 1972-07-27 BE BE786807A patent/BE786807A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2902881A1 (en) * | 2006-06-27 | 2007-12-28 | Stein Heurtey | FLAT GLASS PRODUCTION FACILITY WITH CONSTRAINTS MEASURING EQUIPMENT, AND METHOD OF CONDUCTING A FLAT GLASS RECOVERY PLANT. |
WO2008000936A1 (en) * | 2006-06-27 | 2008-01-03 | Fives Stein | Installation for producing flat glass, comprising a stress measuring device, and method for operating a flat glass annealing lehr |
CN101467029B (en) * | 2006-06-27 | 2013-01-23 | 法孚斯坦因公司 | Installation for producing flat glass, comprising a stress measuring device, and method for operating a flat glass annealing kiln |
DE102008045416A1 (en) * | 2008-09-02 | 2010-03-04 | Arcon-Dur Sicherheitsglas Gmbh & Co. Kg | Apparatus and method for producing thermally toughened glass sheets and thermally toughened glass sheet |
EP2159199A3 (en) * | 2008-09-02 | 2015-05-20 | Arcon-dur Sicherheitsglas GmbH & Co. KG | Method and device for producing thermally pre-tensioned glass panes and thermally pre-tensioned glass pane |
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