GB479631A - Improved method of stabilizing annealed glass articles particularly thermometers - Google Patents
Improved method of stabilizing annealed glass articles particularly thermometersInfo
- Publication number
- GB479631A GB479631A GB35418/36A GB3541836A GB479631A GB 479631 A GB479631 A GB 479631A GB 35418/36 A GB35418/36 A GB 35418/36A GB 3541836 A GB3541836 A GB 3541836A GB 479631 A GB479631 A GB 479631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- temperature
- glass
- oxide
- strain
- 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
- 239000005347 annealed glass Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 239000011521 glass Substances 0.000 abstract 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 2
- 229910001948 sodium oxide Inorganic materials 0.000 abstract 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 229910000464 lead oxide Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 abstract 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 abstract 1
- 229910001950 potassium oxide Inorganic materials 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/02—Annealing glass products in a discontinuous way
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
479,631. Glass manufacture. CORNING GLASS WORKS. Dec. 24, 1936, No. 35418. Convention date, Dec. 30, 1935. Drawings to Specification. [Class 56] A method of stabilizing the molecular arrangement of annealed glass articles, particularly thermometers, consists in maintaining an article for a relatively short time at a temperature substantially higher than the maximum temperature to which the article will be subjected in service but below the strain temperature of the glass. The treatment may be applied to a thermometer adapted for use up to 360‹ C. and having the glass of its stem composed of 61À9 per cent of silica. 0À2 per cent of boron trioxide, 1À9 per cent of alumina, 10À9 per cent of sodium oxide, 1À0 per cent of potassium oxide, and 24 per cent of lead oxide, while the bulb is composed of 68À8 per cent of silica, 2À3 per cent of boron trioxide, 1À5 per cent of alumina, 14À7 per cent of sodium oxide, 5À7 per cent of calcium oxide, and 7À0 per cent of zinc oxide. Compositions of other glasses with their strain temperatures and expansion coefficients are given in the Specification. The thermometer is subjected to a temperature of 505‹ C. near the strain temperature of the glass of the bulb, and is maintained at this temperature for a relatively short time. It is then maintained at successively lower temperatures for relatively longer times until the temperature is near the strain temperature of the glass of the stem where it is again held for a relatively short time. Again it is maintained at successively lower temperatures for relatively longer times until the temperature is near the highest temperature to which it will be subjected in use, and after treatment at this temperature it is brought to room temperature.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US479631XA | 1935-12-30 | 1935-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB479631A true GB479631A (en) | 1938-02-09 |
Family
ID=21952005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35418/36A Expired GB479631A (en) | 1935-12-30 | 1936-12-24 | Improved method of stabilizing annealed glass articles particularly thermometers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB479631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173780A (en) * | 1961-06-19 | 1965-03-16 | Corning Glass Works | Method of producing an ultrasonic solid delay line |
-
1936
- 1936-12-24 GB GB35418/36A patent/GB479631A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173780A (en) * | 1961-06-19 | 1965-03-16 | Corning Glass Works | Method of producing an ultrasonic solid delay line |
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