2019 Pittsburgh AISTech

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Sessions (14)

Slag Engineering for Phosphorus Removal in the EAF and Sulfur Removal in the Ladle (Room 410)

06 May 19
2:00 PM - 2:30 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Gary Brown ; Miles Haberkom ; Randy Petty ; Rick Bodnar ; Sunday Abraham ; Tim Sprague ; Tony Franks ; Wesley Nicholson ; Wesley Woods ; Yufeng Wang
Slag-metal reaction kinetics and thermodynamics are dependent on physical and chemical properties of the slag. During steel refining, the two prima... More...

Development of Alternative Flux for Liquid Steel Desulfurization (Room 410)

06 May 19
2:30 PM - 3:00 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Saikat Chatterjee
Lime is the most common desulfurizing agent due to its low cost, good sulfide capacity, and convenience in storage and transportation. The desulfur... More...

Slag Capacity on Inclusion Removal: An Experimental and Thermodynamic Investigation (Room 410)

06 May 19
3:00 PM - 3:30 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Antônio Cezar Faria Vilela ; Julio Aníbal Morales Pereira ; Pedro Cunha Alves ; Vinicius Cardoso da Rocha ; Wagner Viana Bielefeldt
The capacity of steelmaking slags on inclusion removal from liquid steel was investigated. Laboratory experiments with slag and steel samples (with... More...

Reoxidation of Al-Killed ULC Steel by FetO in CaO-Al2O3-MgO-FetO Slag During Secondary Refining Process (Room 410)

06 May 19
3:30 PM - 4:00 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Joo-Hyeok Lee ; Woo-Yeol Cha ; Yong-Min Cho ; Youn-Bae Kang
FetO in a secondary refining slag can reoxidize Al-killed ultralow-carbon (ULC) steel, thereby deteriorating the final product quality and process ... More...

Kinetic Study of the Nitrogen Reaction With Liquid Third-Generation Advanced High-Strength Steel: Experimental Design and Industrial Significance (Room 410)

07 May 19
10:00 AM - 10:30 AM

Tracks: Ladle & Secondary Refining

Speaker(s): Dai Tang ; P. Chris Pistorius
The kinetics of nitrogen reaction with third-generation advanced high-strength steel (AHSS) is of interest, as the affinities of alloy elements (Al... More...

Non-Metallic Inclusion Change in the Third-Generation AHSS With High Manganese, Aluminum and Silicon Contents (Room 410)

07 May 19
10:30 AM - 11:00 AM

Tracks: Ladle & Secondary Refining

Speaker(s): Dai Tang ; P. Chris Pistorius
Third-generation advanced high-strength steels (AHSS) generally have high alloy contents, such as manganese, aluminum and silicon. The higher alloy... More...

Recent Development to Control Nitrogen Content of High-Alloy Steel by Optimization Treatment Conditions at the Secondary Refining Process (Room 410)

07 May 19
11:00 AM - 11:30 AM

Tracks: Ladle & Secondary Refining

Speaker(s): Kohei Hosokawa ; Satohiko Sugihara ; Takashi Yamauchi
A progressive and efficient refining process was performed to control the nitrogen content of special-grade high-alloy steel at West Japan Works Ku... More...

Refractory Condition Monitoring and Lifetime Prognosis for RH Degassers (Room 410)

07 May 19
2:00 PM - 2:30 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Alexander Ratz ; Andreas Gantner ; Andreas Viertauer ; Franz Pernkopf ; Georg Grimm ; Gregor Lammer ; Nikolaus Mutsam ; Waltraud Winkler
This paper will describe an approach for AI in secondary steelmaking for an RH degasser. The main goal is to get a refractory lifetime prognosis by... More...

Pyrophoric Dust Formation During Vacuum Degassing: Uncovering the Determining Factors (Room 410)

07 May 19
2:30 PM - 3:00 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Franco Gandin ; Harald Koblenzer ; Marco Vidonis
Vacuum degassing plants driven by mechanical vacuum pumps are characterized by the production, during the process, of dry dust, which can occasiona... More...

Improvement of Vacuum Degasser Cover (Room 410)

07 May 19
3:00 PM - 3:30 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Akito Setoguchi ; Keita Sumida ; Kenji Yoshizawa ; Masato Yoshitsune
Godo Steel Himeji Works is an electric furnace plant that produces round bars for structural use. In the secondary refining of the steelmaking proc... More...

Effect of Snorkel Shape on Refining Efficiency of RH Treatment (Room 410)

07 May 19
3:30 PM - 4:00 PM

Tracks: Ladle & Secondary Refining

Speaker(s): Chang Liu ; Kaiyu Peng ; Lifeng Zhang ; Yanyu Zhao
Three types of RH reactors with different shapes of snorkels (round up-leg and round down-leg, oval up-leg and oval down-leg, and round up-leg and ... More...

Use of Sound Signals in Analyzing Flow Behavior in Steel Vessels (Room 410)

08 May 19
8:00 AM - 8:30 AM

Tracks: Ladle & Secondary Refining

Speaker(s): David Sly ; Geoffrey Brooks ; Michelle Dunn ; Rohini Kadam
Measuring stirring conditions in steel vessels is difficult because of the extreme environment. Continuous monitoring systems can improve control, ... More...

Tenaris Tamsa's Ladle Furnace Electrode Consumption Reduction (Room 410)

08 May 19
8:30 AM - 9:00 AM

Tracks: Ladle & Secondary Refining

Speaker(s): Francisco Raul Aguirre Ortiz ; Pablo Enoc Hernandez Paredes
In order to reduce electrode consumption in LF#1 in Tenaris Tamsa, a set of tests changing voltage-current relationship were planned. Historically,... More...

Fluid Flow Turbulence in the Proximities of the Metal-Slag Interface in Ladle Stirring Operations (Room 410)

08 May 19
9:00 AM - 9:30 AM

Tracks: Ladle & Secondary Refining

Speaker(s): Fabian Calderón-Hurtado ; Kinnor Chattopadhyay ; Rodolfo Morales ; Saul Garcia-Hernández
Three-phase interactions (metal-slag-argon) in ladle stirring operations have strong effects on the metal-slag mass transfer processes. Specificall... More...