GB1418653A - Lining induction crucible furnaces - Google Patents
Lining induction crucible furnacesInfo
- Publication number
- GB1418653A GB1418653A GB5808172A GB5808172A GB1418653A GB 1418653 A GB1418653 A GB 1418653A GB 5808172 A GB5808172 A GB 5808172A GB 5808172 A GB5808172 A GB 5808172A GB 1418653 A GB1418653 A GB 1418653A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesia
- mass
- lime
- weight ratio
- less
- 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
- 230000006698 induction Effects 0.000 title abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 8
- 239000000395 magnesium oxide Substances 0.000 abstract 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 3
- 239000004571 lime Substances 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 235000019353 potassium silicate Nutrition 0.000 abstract 2
- 239000000741 silica gel Substances 0.000 abstract 2
- 229910002027 silica gel Inorganic materials 0.000 abstract 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 1
- 238000005245 sintering Methods 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
- C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
- C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
- F27B14/10—Crucibles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
- F27B14/10—Crucibles
- F27B2014/104—Crucible linings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
1418653 Furnace linings VEITSCHER MAGNESITWERKE-AG 15 Dec 1972 [15 Dec 1971] 58081/72 Heading C1J A lining in an induction crucible furnace consists of or is derived from a tamping mass comprising magnesia with a lime to silica weight ratio of less than 2 : 1, and 2-15 wt. per cent Cr 2 O 3 as a spinel-forming addition. The magnesia may have a Fe 2 O 3 content less than 1À2 wt. per cent. The mass may comprise a magnesia with a lime to silica weight ratio of more than 2 : 1 and a siliceous material in such amount that the lime to silica weight ratio of the mass is less than 2. The siliceous material may be silica gel or water glass. The mass may also contain a sintering promoter (e.g. containing alkali). The examples describe tamping masses comprising magnesia, chrome oxide green and in some cases water glass or silica gel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1074971A AT315718B (en) | 1971-12-15 | 1971-12-15 | Refractory dry ramming compound for lining induction crucible furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418653A true GB1418653A (en) | 1975-12-24 |
Family
ID=3624435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5808172A Expired GB1418653A (en) | 1971-12-15 | 1972-12-15 | Lining induction crucible furnaces |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT315718B (en) |
| BE (1) | BE792710A (en) |
| DE (1) | DE2259333C3 (en) |
| FR (1) | FR2163457B1 (en) |
| GB (1) | GB1418653A (en) |
| IT (1) | IT975715B (en) |
| SE (1) | SE392460B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003281476B2 (en) * | 2002-07-19 | 2009-06-18 | Vita Zahnfabrik H. Rauter Gmbh & Co. | Sealing of ceramic substances by means of electromagnetic centimetre waves, and receptacle for carrying out the inventive method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3133572C1 (en) * | 1981-08-25 | 1983-01-27 | Didier-Werke Ag, 6200 Wiesbaden | Method of delivering electric steel furnaces |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897069C (en) * | 1951-06-04 | 1953-11-16 | Oesterr Amerikan Magnesit | Process for the manufacture of refractory bricks |
| GB869494A (en) * | 1958-10-16 | 1961-05-31 | Canadian Refractories Ltd | Spalling resistant periclase brick |
| FR1399647A (en) * | 1963-04-08 | 1965-05-21 | United States Steel Corp | Directly bound periclase refractory bricks and method for producing them |
| DE1758050A1 (en) * | 1967-04-03 | 1972-02-10 | Dresser Ind | Refractory lining |
-
0
- BE BE792710D patent/BE792710A/en not_active IP Right Cessation
-
1971
- 1971-12-15 AT AT1074971A patent/AT315718B/en not_active IP Right Cessation
-
1972
- 1972-11-13 IT IT70558/72A patent/IT975715B/en active
- 1972-11-28 FR FR7242212A patent/FR2163457B1/fr not_active Expired
- 1972-12-04 DE DE2259333A patent/DE2259333C3/en not_active Expired
- 1972-12-14 SE SE7216362A patent/SE392460B/en unknown
- 1972-12-15 GB GB5808172A patent/GB1418653A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003281476B2 (en) * | 2002-07-19 | 2009-06-18 | Vita Zahnfabrik H. Rauter Gmbh & Co. | Sealing of ceramic substances by means of electromagnetic centimetre waves, and receptacle for carrying out the inventive method |
Also Published As
| Publication number | Publication date |
|---|---|
| SE392460B (en) | 1977-03-28 |
| DE2259333A1 (en) | 1973-06-28 |
| BE792710A (en) | 1973-03-30 |
| DE2259333B2 (en) | 1977-10-06 |
| IT975715B (en) | 1974-08-10 |
| DE2259333C3 (en) | 1984-11-08 |
| FR2163457B1 (en) | 1974-10-04 |
| AT315718B (en) | 1974-06-10 |
| FR2163457A1 (en) | 1973-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |