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STRÁNSKÝ, K. LEVÍČEK, P. ŠENBERGER, J. BAŽAN, J. KAVIČKA, F.
Original Title
Oxygen blowing to the re-melts of the high-alloy steels for castings - Hadfield steel and Cr13Ni1 steels
Type
journal article - other
Language
English
Original Abstract
High-alloy steel scrap is very often processed by melting in basic electric-arc furnaces via simple re-melt technologies. This technology gradually leads to continued increase in the content of hydrogen and nitrogen in melts and after a certain number of re-melts, hydrogen and nitrogen bubbles begin to form. Especially high-alloy chrome steels for water turbines and high-alloy manganese (Hadfield) steels have a tendency to form such bubbles. The increase in the content of both gases in the re-melting can be significantly reduced by engaging a short but intensive carbon boiling by oxygen blowing. This paper puts forward verified thermodynamic and kinetic conditions of the oxygen blowing into the baths of the re-melts of two different high-alloy steels: chromium steel 13wt% Cr and 1wt% Ni used for the castings of water-turbine parts and pumps and manganese (Hadfield) 13 wt% Mn and 1,3 wt%C steel for castings designed to resist wear connected with high pressures and impacts.
Keywords
Hadfield, chromium steel, oxygen
Authors
STRÁNSKÝ, K.; LEVÍČEK, P.; ŠENBERGER, J.; BAŽAN, J.; KAVIČKA, F.
Released
1. 10. 2005
Publisher
Stowarzyszenie Techniczne Odlewników Polskich
Location
ul. Zakopiańska 73 30-418 Krakow Polsko
ISBN
0033-2275
Periodical
Przeglad Odlewnictwa
Year of study
2005
Number
10
State
Republic of Poland
Pages from
636
Pages to
642
Pages count
7
BibTex
@article{BUT46421, author="Karel {Stránský} and Petr {Levíček} and Jaroslav {Šenberger} and Jiří {Bažan} and František {Kavička}", title="Oxygen blowing to the re-melts of the high-alloy steels for castings - Hadfield steel and Cr13Ni1 steels", journal="Przeglad Odlewnictwa", year="2005", volume="2005", number="10", pages="636--642", issn="0033-2275" }