Jaka Burja (Author)

Abstract

The influence of sulfur on both slag and melt is very important in steelmaking. This is especially true for highsulfur machining steels. Machinability is achieved by alloying high sulfur contents, above 300 ppm. These are steels that form small chips and shavings during mechanical processing by cutting, which is more appropriate and favorable for both the workpiece and the processing tool and machine. However, the secondary steelmaking slag is typically designed for desulfurization. This means that the sulfur content rapidly falls after sulfur additions. This is especially true for high machinability stainless steel grades where S contents can exceed 1000 ppm. This causes the sulfur wire yield to vary greatly in each charge, making the process unreliable. Some aspects of understanding the interaction between the steel melt and slag and the effect on casting are presented in this work. Based on industrial charges, we analyzed the yield of sulfur additions and the influencing factors on the efficiency of the sulfur addition. The lower slag basicity was linked to lover sulfur distribution rations, and lover sulfur distribution rations were linked to higher sulfur yields. Melt and slag samples were analyzed. Slag entrapment during ingot casting was linked to the high sulfur contents.

Keywords

desulfurization;sulfur;stainless steel;steelmaking;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: IMT - Institute of Metals and Technology
Publisher: TANGER
UDC: 669.1
COBISS: 186843651 Link will open in a new window
ISSN: 2694-9296
Views: 131
Downloads: 45
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: razžvepljanje;žveplo;nerjavno jeklo;jeklarstvo;
Source comment: Nasl. z nasl. zaslona; Opis vira z dne 27. 2. 2024;
Pages: Str. 33-37
DOI: 10.37904/metal.2023.4627
ID: 23024786