GB512622A - Improvements in the manufacture of vitreous silica and other refractory vitreous siliceous materials - Google Patents
Improvements in the manufacture of vitreous silica and other refractory vitreous siliceous materialsInfo
- Publication number
- GB512622A GB512622A GB714838A GB714838A GB512622A GB 512622 A GB512622 A GB 512622A GB 714838 A GB714838 A GB 714838A GB 714838 A GB714838 A GB 714838A GB 512622 A GB512622 A GB 512622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crucible
- vitreous
- refractory
- silica
- manufacture
- 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
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
512,622. Fused silica; refractory materials. GENERAL ELECTRIC CO., Ltd., and PARTRIDGE, J. H. March 7, 1938, No. 7148. [Class 56] [Also dn Group V] Relates to the method of manufacturing highlyrefractory siliceous material, particularly vitreous silica, in which the material is melted in a carbon crucible. According to the invention. a smooth and regular ingot is produced by keeping the crucible with the fused material in an oxidising atmosphere at a temperature at which the material is solid, but can yield under stress, until the carbon burns away. If the fusion is carried out in an induction furnace, the crucible .may be packed in refractory material, such as zirconia, so that a crucible with thin walls can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB714838A GB512622A (en) | 1938-03-07 | 1938-03-07 | Improvements in the manufacture of vitreous silica and other refractory vitreous siliceous materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB714838A GB512622A (en) | 1938-03-07 | 1938-03-07 | Improvements in the manufacture of vitreous silica and other refractory vitreous siliceous materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512622A true GB512622A (en) | 1939-09-21 |
Family
ID=9827532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB714838A Expired GB512622A (en) | 1938-03-07 | 1938-03-07 | Improvements in the manufacture of vitreous silica and other refractory vitreous siliceous materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2974388A (en) * | 1958-01-30 | 1961-03-14 | Norton Co | Process of making ceramic shells |
-
1938
- 1938-03-07 GB GB714838A patent/GB512622A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2974388A (en) * | 1958-01-30 | 1961-03-14 | Norton Co | Process of making ceramic shells |
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