AT166216B - Process for the production of acid steel - Google Patents
Process for the production of acid steelInfo
- Publication number
- AT166216B AT166216B AT166216DA AT166216B AT 166216 B AT166216 B AT 166216B AT 166216D A AT166216D A AT 166216DA AT 166216 B AT166216 B AT 166216B
- Authority
- AT
- Austria
- Prior art keywords
- steel
- production
- acid
- acid steel
- calcium silicon
- Prior art date
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von saurem Stahl
EMI1.1
des erfindungsgemässen Verfahrens eine stark basische metalloxydularme reduzierende KalkSilikat-Schlacke, welche die Silizium-Oxyde und deren Verbindungen jeglichen Dispersitätsgrades weitestgehend aus dem Stahl entfernt. Diese reduzierende basische Kalk-Silikat-Schlacke nimmt aber auch, wie dies bereits bekannt ist, Schwefel und Schwefelverbindungen auf, so dass gleichzeitig eine weitgehende Entschwefelung eintritt. So wurde z. B. bei einem säurebeständigen Stahl mit 18% Cr und 8% Ni, der in einem sauer zugestellten kernlosen Induktionsofen erschmolzen war und noch 0-016% S hatte, nach Anwendung des erfindungsgemässen Verfahrens eine Verminderung des Schwefelgehaltes auf 0-006"n festgestellt.
Auf breiter Basis durchgeführte Betriebsversuche haben gezeigt, dass insbesondere höherlegierte schwer verformbare Stähle in ihrer Warm- und Kaltverformbarkeit bei Anwendung des Verfahrens gemäss vorliegende ! Erfindung ausserordentlich verbessert werden.
Die Anwendbarkeit des sauren Schmelzverfahrens, das in mancher Hinsicht gegenüber dem basischen Vorteile bietet, wird durch das erfindungsgemässe Verfahren ausserordentlich erweitert, weil es die schädlichen Kieselsäureemulsionen der sauren Stähle verlässlich beseitigt und darüber hinaus die bekannte stark entschwefelnde Wirkung des Kalzium-Siliziums auszunützen erlaubt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for the production of acid steel
EMI1.1
In the process according to the invention, a strongly basic, low-metal oxide reducing lime-silicate slag, which removes the silicon oxides and their compounds of any degree of dispersion from the steel as far as possible. As is already known, this reducing basic lime-silicate slag also absorbs sulfur and sulfur compounds, so that extensive desulphurisation occurs at the same time. So was z. B. in an acid-resistant steel with 18% Cr and 8% Ni, which was melted in an acid-lined coreless induction furnace and still had 0-016% S, a reduction in the sulfur content to 0-006 "n was found after using the inventive method.
Operating tests carried out on a broad basis have shown that, in particular, higher-alloy steels that are difficult to deform in their hot and cold deformability when using the method according to the present! Invention are greatly improved.
The applicability of the acidic melting process, which offers advantages over the basic one in some respects, is greatly expanded by the process according to the invention, because it reliably eliminates the harmful silica emulsions of acidic steels and, moreover, allows the well-known, highly desulphurising effect of calcium-silicon to be used.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT166216T | 1947-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT166216B true AT166216B (en) | 1950-06-26 |
Family
ID=34200207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT166216D AT166216B (en) | 1947-06-03 | 1947-06-03 | Process for the production of acid steel |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT166216B (en) |
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1947
- 1947-06-03 AT AT166216D patent/AT166216B/en active
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