Benefits from Improved Bath Agitation with the Radex DPP Gas Purging System During EAF High-Alloyed and Stainless Steel Production

Title data

Kirschen, Marcus ; Ehrengruber, Reinhard ; Zettl, Karl-Michael:
Benefits from Improved Bath Agitation with the Radex DPP Gas Purging System During EAF High-Alloyed and Stainless Steel Production.
In: RHI Bulletin. (2016) Issue 1 . - pp. 8-13.

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Abstract in another language

Modern production processes of high alloyed and stainless steel grades are subject to the cost-optimized production of raw steel or molten metal combined with high flexibility. Excellent mixing of the steel melt helps to improve mass and heat transfer in the EAF, in order to accelerate the melting of heavy scrap and alloys, decarburization, homogeneous superheating, alloy distribution, and to avoid skull formation and solid remainders that may obstruct tapping. The RADEX DPP system generates customer benefits by improving EAF processes during high-alloyed stainless steel making. The most important effect of the enhanced steel bath mixing besides improved heat transfer and decarburization is a decreased chromium oxidation. Firstly, chromium oxidation is decreased by improving the homogeneous distribution of carbon and chromium in the melt. Secondly, build-up of chromium-containing solids in the EAF hearth and skull formation is decreased by stronger melt movement. The cost savings of both effects economically justify the application of gas purging in EAF stainless steelmaking. Case studies are presented demonstrating the advantages.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Engineering Science Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL) Faculties Research Institutions Research Institutions > Affiliated Institutes
Result of work at the UBT:	No
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	09 Jul 2019 07:19
Last Modified:	09 Jul 2019 07:19
URI:	https://eref.uni-bayreuth.de/id/eprint/49892