GB518261A - A process for the production of refined iron and alloy steels - Google Patents
A process for the production of refined iron and alloy steelsInfo
- Publication number
- GB518261A GB518261A GB14533/38A GB1453338A GB518261A GB 518261 A GB518261 A GB 518261A GB 14533/38 A GB14533/38 A GB 14533/38A GB 1453338 A GB1453338 A GB 1453338A GB 518261 A GB518261 A GB 518261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alloy steels
- lime
- aluminium
- iron
- melting
- 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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/04—Decarburising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
518,261. Refining iron and alloy steels. WESTBERG, S. May 16, 1938, Nos. 14533 and 14534. Convention dates, May 18, and July 27, 1937. [Classes 72 and 82(i)] Impure irons or alloy steels containing one or more of the elements silicon, nickel, chromium and aluminium, are refined by subjecting them in finely divided or granulated form to heat treatment in the solid state in the presence of a decarburizing gas mixture and then melting them under conditions which will maintain the already attained purity, e.g., in the presence of inert gases or under reduced pressure. When the decarburizing gas mixture contains hydrogen an element such as aluminium, silicon, calcium or magnesium, which will react with the gaseous products of the heat treatment and regenerate the hydrogen may be present. The iron &c. may be coated with an oxide such as lime or a ceramic material such as spinel or sillimanite by suspending such material in the quenching medium used to produce the granulated material. To remove any phosphorus present, the melting may be carried out in an electric induction furnace in the presence of a basic material such as lime or a basic oxidising slag.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO518261X | 1937-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518261A true GB518261A (en) | 1940-02-22 |
Family
ID=19905921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14533/38A Expired GB518261A (en) | 1937-05-18 | 1938-05-16 | A process for the production of refined iron and alloy steels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518261A (en) |
-
1938
- 1938-05-16 GB GB14533/38A patent/GB518261A/en not_active Expired
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