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
Application number
Other languages
German (de)
Inventor
Basel Elektrizitaetswerk L Und
Original Assignee
Lonza Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lonza Ag filed Critical Lonza Ag
Publication of CH98117A publication Critical patent/CH98117A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/04Making 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)

PATENTANSPRUCH: Verfahren zur Herstellung von Eisen legierungen, dadurch gekennzeichnet, dass man dem geschmolzenen Eisen eine Mischung von Verbindungen der mit demselben zu le gierenden Stoffe mit Reduktionsmitteln zu setzt, welche bei der herrschenden Tempera tur auf die beigemengten Verbindungen reduzierend wirken. PATENT CLAIM: Process for the production of iron alloys, characterized in that a mixture of compounds of the substances to be alloyed with the same is added to the molten iron with reducing agents which, at the prevailing temperature, have a reducing effect on the added compounds.
CH98117D 1921-09-10 1921-09-10 Process for the production of iron alloys. CH98117A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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