GB539263A - Improvements in and relating to the manufacture of fire-bricks - Google Patents
Improvements in and relating to the manufacture of fire-bricksInfo
- Publication number
- GB539263A GB539263A GB29971/39A GB2997139A GB539263A GB 539263 A GB539263 A GB 539263A GB 29971/39 A GB29971/39 A GB 29971/39A GB 2997139 A GB2997139 A GB 2997139A GB 539263 A GB539263 A GB 539263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grains
- size
- bricks
- time
- baking
- 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
- C04B35/01—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (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
539,263. Firebricks. SOC. ANON. DES HAUTSFOURNEAUX DE LA CHIERS. Nov. 13, 1939, No. 29971. Convention date, Nov. 22, 1938. [Class 22] Firebricks are made by reducing calcined lime or dead-fritted dolomite to the form of sharpedged grains of a size of about 1-5 mm., separating the grains according to size by screening, mixing the grains of different sizes in suitable proportions, moulding the mixture in the dry state to form bricks and baking the bricks preferably in an oxidizing atmosphere, the whole of these operations from the time when the material is calcined or fritted to the time when it enters the baking kiln being carried out with such rapidity that the material does not cool down to such an extent that it can be changed by the atmosphere. Iron oxide or chromium oxide may be added before the grinding. The proportion of grains of a size of 1-3 mm. may be from 50-75 per cent. while that of grains of a size 3-5 mm. may be from 50-25 per cent. The time taken should not exceed 8 hours, or the temperature of the brick should not be below 30‹ C. when it enters the baking kiln.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR539263X | 1938-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB539263A true GB539263A (en) | 1941-09-03 |
Family
ID=8928753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29971/39A Expired GB539263A (en) | 1938-11-22 | 1939-11-13 | Improvements in and relating to the manufacture of fire-bricks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB539263A (en) |
-
1939
- 1939-11-13 GB GB29971/39A patent/GB539263A/en not_active Expired
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