GB465313A - Refractory product and process for its manufacture - Google Patents
Refractory product and process for its manufactureInfo
- Publication number
- GB465313A GB465313A GB11106/36A GB1110636A GB465313A GB 465313 A GB465313 A GB 465313A GB 11106/36 A GB11106/36 A GB 11106/36A GB 1110636 A GB1110636 A GB 1110636A GB 465313 A GB465313 A GB 465313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- kgs
- silicon carbide
- graphite
- added
- silicon
- 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
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
-
- 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
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
-
- 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 peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
Refractory articles are made by baking a mixture of silicon carbide, graphite, and a metal or alloy, or a metal oxide capable of combining with the silicon of the carbide to form a metallic silicide, in quantity insufficient to combine with the whole of the silicon of the silicon carbide. Examples of metals employed are iron, nickel chromium and manganese, either as such or in the form of alloys or oxide. The raw mixture may also contain an organic binder. When the mixture is heated to 1100-1300 DEG C. it matures to a refractory substance comprising particles of silicon carbide and graphite bonded by a metallic silicide. The baking however may be at a lower temperature 800-900 DEG C. to form products which can be handled, the maturing of the bond then taking place during a second heating to a higher temperature 1100-1300 DEG C. When the metals are added as oxides, a fluoride, e.g. fluorspar or cryolite is added. In an example, a raw mix comprises 36 kgs. of graphite in flakes, 60 kgs. of silicon carbide, 12 kgs. of white sand 16 kgs. of ferromanganese alloy and 50 kgs. of organic binder, e.g. tar. This is shaped, e.g. as a crucible, and baked at 800-900 DEG C. for about 8 hours. A protective glaze is developed when the article is heated to a higher temperature, about 1200 DEG C. either in use or by a special baking. In another example the metal is in the form of iron oxide and chromium oxide, and a double fluoride, physalite, is added.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR683676X | 1935-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB465313A true GB465313A (en) | 1937-03-05 |
Family
ID=9024015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11106/36A Expired GB465313A (en) | 1935-04-18 | 1936-04-17 | Refractory product and process for its manufacture |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE415048A (en) |
DE (1) | DE683676C (en) |
FR (1) | FR800855A (en) |
GB (1) | GB465313A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445296A (en) * | 1942-10-20 | 1948-07-13 | Wejnarth Axel Richard | Process of manufacturing resistance elements durable at high temperature and proof against chemical action |
US2817509A (en) * | 1954-08-19 | 1957-12-24 | Electro Refractories & Abrasiv | Lined crucibles |
EP2363012A1 (en) * | 2008-10-31 | 2011-09-07 | Elkem Carbon As | Induction furnace for melting of metals, lining for an induction furnace and method for production of such lining |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE972986C (en) * | 1951-10-28 | 1959-11-12 | Didier Werke Ag | Process for the production of silicon carbide bricks |
DE1209478B (en) * | 1952-10-15 | 1966-01-20 | Lonza Werke Elektrochemische F | Carbon electrode for electrothermal processes |
DE1440943A1 (en) * | 1953-06-04 | 1969-10-30 | Kanthal Ab | Electrical end element |
DE1147208B (en) * | 1958-02-13 | 1963-04-18 | United States Borax Chem | Process for the production of metal borides |
-
0
- BE BE415048D patent/BE415048A/xx unknown
-
1935
- 1935-04-18 FR FR800855D patent/FR800855A/en not_active Expired
-
1936
- 1936-04-17 GB GB11106/36A patent/GB465313A/en not_active Expired
- 1936-04-19 DE DEB173813D patent/DE683676C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445296A (en) * | 1942-10-20 | 1948-07-13 | Wejnarth Axel Richard | Process of manufacturing resistance elements durable at high temperature and proof against chemical action |
US2817509A (en) * | 1954-08-19 | 1957-12-24 | Electro Refractories & Abrasiv | Lined crucibles |
EP2363012A1 (en) * | 2008-10-31 | 2011-09-07 | Elkem Carbon As | Induction furnace for melting of metals, lining for an induction furnace and method for production of such lining |
EP2363012A4 (en) * | 2008-10-31 | 2014-08-27 | Elkem Carbon As | Induction furnace for melting of metals, lining for an induction furnace and method for production of such lining |
Also Published As
Publication number | Publication date |
---|---|
BE415048A (en) | |
DE683676C (en) | 1939-11-11 |
FR800855A (en) | 1936-07-21 |
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