GB1421830A - Method of manufacturing vitreous silica articles - Google Patents
Method of manufacturing vitreous silica articlesInfo
- Publication number
- GB1421830A GB1421830A GB1842373A GB1842373A GB1421830A GB 1421830 A GB1421830 A GB 1421830A GB 1842373 A GB1842373 A GB 1842373A GB 1842373 A GB1842373 A GB 1842373A GB 1421830 A GB1421830 A GB 1421830A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- silica
- atmosphere
- vitreous silica
- articles
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 8
- 238000004519 manufacturing process Methods 0.000 title 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 239000001307 helium Substances 0.000 abstract 2
- 229910052734 helium Inorganic materials 0.000 abstract 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 229910002026 crystalline silica Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
- C03B19/066—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction for the production of quartz or fused silica articles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
Abstract
1421830 Vitreous silica articles CORNING GLASS WORKS 17 April 1973 18423/73 Heading C1M Vitreous silica articles are produced from a moulded body 12 composed of particles of crystalline silica or a glass having an SiO 2 content in excess of 90% by weight, by supporting the mould body on a graphite mandrel 24 having thin, perforated walls and an outer surface complementary to the interior surface of the body 12; and then sintering the moulded body in an inert gas atmosphere and at a temperature between 1725‹ and 2200‹ C. To produce opaque silica sintering is carried out in a helium atmosphere. For transparent silica, the mould body is first heated in a helium atmosphere to a temperature between 1600‹ and 1725‹ C., the atmosphere changed to one of argon and the body sintered at between 1730‹ and 2200‹ C. As shown the process is carried out using a mandrel provided with apertures 33 to enable the escape of gases trapped between the body and the mandrel. The mandrel is mounted on a vertically movable water cooled rod 44 within an induction or resistance heated furnace 50. (For Figure see next column.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1842373A GB1421830A (en) | 1973-04-17 | 1973-04-17 | Method of manufacturing vitreous silica articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1842373A GB1421830A (en) | 1973-04-17 | 1973-04-17 | Method of manufacturing vitreous silica articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421830A true GB1421830A (en) | 1976-01-21 |
Family
ID=10112198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1842373A Expired GB1421830A (en) | 1973-04-17 | 1973-04-17 | Method of manufacturing vitreous silica articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1421830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150135772A1 (en) * | 2013-11-18 | 2015-05-21 | Heraeus Quartz Uk Limited | Furnace for Sintering Silica Soot Bodies |
-
1973
- 1973-04-17 GB GB1842373A patent/GB1421830A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150135772A1 (en) * | 2013-11-18 | 2015-05-21 | Heraeus Quartz Uk Limited | Furnace for Sintering Silica Soot Bodies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |