CH98117A - Process for the production of iron alloys. - Google Patents
Process for the production of iron alloys.Info
- Publication number
- CH98117A CH98117A CH98117DA CH98117A CH 98117 A CH98117 A CH 98117A CH 98117D A CH98117D A CH 98117DA CH 98117 A CH98117 A CH 98117A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- iron alloys
- added
- alloys
- compounds
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
Description
Verfahren zur Herstellung von Eisenlegierungen. Bei der Herstellung von Eisenlegierun gen, z. B. Stahllegierungen, ist es üblich, die für die Erzielung besonderer Eigenschaften des Produktes dem geschmolzenen Eisen zu- zugebenden Stoffe in elementarer Form, z. B. auch in Form von Legierungen, zuzugeben. So wird beispielsweise zur Erzielung einer silicium-, Chrom- oder wolframhaltigen Ei senlegierung dem geschmolzenen Eisen in der Regel Ferrosilicium, Ferrochrom bezw. Ferro- u,olfram zugegeben.
Wir haben nun gefunden, dass man solche Eisenlegierungen auch dadurch herstellen kann, dass dem geschmolzenen Eisen eine Mischung von Verbindungen der mit dem selben zu legierenden Stoffe mit Reduktions mitteln zugegeben wird, welche bei der herr schenden Temperatur auf die beigemischten Verbindungen reduzierend einwirken. Als Verbindungen der zuzugebenden Stoffe kom men zum Beispiel Erze, Metalloxyde und auch Metalloidverbindungen in Betracht. Als Reduktionsmittel können Metalle oder Le gierungen verwendet werden.
Ganz besonders geeignet als Reduktions mittel im Metallbade haben sich Calcium und Aluminium erwiesen. Das Calcium wird am besten in Form der bekannten Silicium-Cal- ciumlegierung, welche im elektrischen Ofen durch Einschmelzen von Calciumkarbid mit Quarz unter Zugabe von Kohle erhalten wird, für die Mischung verwendet. Alumi nium kann als solches und auch in Form von Legierungen, wie Silicoaluminium und der gleichen, beigemischt werden. Zweckmässig verwendet man die Mischung in Gestalt von Briketten.
Process for the production of iron alloys. In the production of Eisenlegierun conditions such. B. steel alloys, it is customary to add the substances to be added to the molten iron to achieve special properties of the product in elemental form, e.g. B. also in the form of alloys to admit. For example, to achieve a silicon, chromium or tungsten-containing iron alloy, the molten iron is usually ferrosilicon, ferrochrome or. Ferro- and olfram added.
We have now found that such iron alloys can also be produced by adding a mixture of compounds of the substances to be alloyed with the same with reducing agents to the molten iron, which have a reducing effect on the added compounds at the prevailing temperature. As compounds of the substances to be added, for example ores, metal oxides and also metalloid compounds come into consideration. Metals or alloys can be used as reducing agents.
Calcium and aluminum have proven to be particularly suitable as reducing agents in metal baths. The calcium is best used for the mixture in the form of the known silicon-calcium alloy, which is obtained in an electric furnace by melting calcium carbide with quartz with the addition of carbon. Alumi nium can be added as such and also in the form of alloys, such as silicoaluminium and the like. The mixture is expediently used in the form of briquettes.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH98117T | 1921-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH98117A true CH98117A (en) | 1923-03-01 |
Family
ID=4355908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH98117D CH98117A (en) | 1921-09-10 | 1921-09-10 | Process for the production of iron alloys. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH98117A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061815A1 (en) * | 1981-03-31 | 1982-10-06 | Union Carbide Corporation | Addition agents for iron-base alloys |
-
1921
- 1921-09-10 CH CH98117D patent/CH98117A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061815A1 (en) * | 1981-03-31 | 1982-10-06 | Union Carbide Corporation | Addition agents for iron-base alloys |
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