GB528025A - Improvements in and relating to the manufacture of ferromagnetic material - Google Patents
Improvements in and relating to the manufacture of ferromagnetic materialInfo
- Publication number
- GB528025A GB528025A GB12533/39A GB1253339A GB528025A GB 528025 A GB528025 A GB 528025A GB 12533/39 A GB12533/39 A GB 12533/39A GB 1253339 A GB1253339 A GB 1253339A GB 528025 A GB528025 A GB 528025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- april
- manufacture
- per cent
- ferromagnetic material
- 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
- C04B35/26—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 ferrites
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
528,025. Iron oxides. STEATIT-MAGNESIA AKT.-GES. April 26, 1939, No. 12533. Convention date, April 27, 1938. [Class 1 (iii)] [Also in Group XXXV] A process for the manufacture of ferromagnetic material for dust cores consists in combining oxygen, which may be free or in chemical combination with other gases, completely with iron at a temperature of between 900‹C. and 1300‹C. The iron which is given a large surface area by cutting into strips, sheets, or wires, is heated to the required temperature in a gas containing oxygen at low partial pressure, preferably H 2 O and CO 2 leading to the formation of oxides, having between 70 per cent. and 75 per cent. iron content. In order to make the product crystalline, it is allowed to remain from 3-12 hours at a high temperature in a protective gas, preferably the reaction gas. The finished product is very brittle and can be ground down to particles having a diameter of between 40Á and 150Á.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE528025X | 1938-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB528025A true GB528025A (en) | 1940-10-21 |
Family
ID=6553527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12533/39A Expired GB528025A (en) | 1938-04-27 | 1939-04-26 | Improvements in and relating to the manufacture of ferromagnetic material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB528025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1084188B (en) * | 1957-04-09 | 1960-06-23 | Atomic Energy Commission | Process for the production of a dense uranium oxide body |
-
1939
- 1939-04-26 GB GB12533/39A patent/GB528025A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1084188B (en) * | 1957-04-09 | 1960-06-23 | Atomic Energy Commission | Process for the production of a dense uranium oxide body |
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