EP 3540082 A1 20190918 - SULFUR ADDITIVE FOR MOLTEN STEEL, AND METHOD FOR MANUFACTURING SULFUR-ADDED STEEL
Title (en)
SULFUR ADDITIVE FOR MOLTEN STEEL, AND METHOD FOR MANUFACTURING SULFUR-ADDED STEEL
Title (de)
SCHWEFELADDITIV FÜR STAHLSCHMELZE UND VERFAHREN ZUR HERSTELLUNG VON STAHL MIT ZUGESETZTEM SCHWEFEL
Title (fr)
ADDITIF À BASE DE SOUFRE POUR ACIER LIQUIDE, ET PROCÉDÉ DE FABRICATION D'ACIER ADDITIONNÉ DE SOUFRE
Publication
Application
Priority
- JP 2016219986 A 20161110
- JP 2017021869 W 20170613
Abstract (en)
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%.
IPC 8 full level
C21C 7/00 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR)
C21C 7/0037 (2013.01 - KR); C21C 7/10 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP KR); C22C 38/14 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C22C 38/42 (2013.01 - EP KR); C22C 38/44 (2013.01 - EP KR); C22C 38/50 (2013.01 - EP); C22C 38/54 (2013.01 - EP); C22C 38/60 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 17870071 A 20170613