Schwefeladditiv für Stahlschmelze und Verfahren zur Herstellung von Stahl mit Zugesetztem Schwefel

Details

Veröffentlichungs-Nr.

EP3540082

Aktenzeichen

EP17870071

Anmeldetag

13. Juni 2017

Veröffentlichung

18. September 2019

Rechtsraum

EP

IPC

C21C7/00C22C38/00C22C38/60C21C7/10C22C38/02C22C38/04C22C38/14C22C38/22C22C38/24C22C38/26C22C38/32C22C38/50C22C38/54C22C38/42C22C38/44

Abstract

A sulfur additive is added to molten steel. At that time, the yield of sulfur in the molten steel is stabilized and nozzle blockage at the time of continuous casting due to impurities is prevented. A sulfur additive used for molten steel which contains iron sulfide ore particles with a particle size of 5.0 to 37.5 mm in 85 mass% or more with respect to the total mass% of the sulfur additive is used to produce Al deoxidized resulfurized steel containing S: 0.012 to 0.100 mass%.

Anmelder

Firmen

NIPPON STEEL CORPORATION
Nippon Steel & Sumitomo Metal Corporation

Land

🇯🇵 Japan

Fachgebiete