Technology Committees


Ladle & Secondary Refining Technology Committee Activities

►Past Activities
Helmut Oltmann (left) presented the LSRTC service
plaque to Sunday Abraham (right).

The LSRTC met 17 May 2016, Pittsburgh, PA, USA.

The following officers were elected:

  • Chair: Sunday Abraham, SSAB Iowa Inc.

  • Vice chair: Helmut Oltmann, Nucor Steel–Berkeley

  • Papers chair: Matt Hallam, Steel Dynamics Inc. – Structural & Rail Div.

The LSRTC and RSTC met 10–11 February 2016, Mobile, Ala., USA. The 2015–2016 Steel Industry Fatalities statistics were reviewed, followed by a safety roundtable discussion.
The committees reviewed their technical sessions for AISTech 2016. LSRTC has five sessions scheduled, and the RSTC has four. The role of the session chair was reviewed.
Nominations for committee officers for the 2016–2017 term were accepted and approved.
Jimmy Barrett discussed the evaluations from Secondary Steelmaking Refractories — A Practical Training Seminar attendees. Seminar presenters were given their individual appraisals from the attendees.
The LSRTC and RSTC will hold another joint meeting in October in Birmingham, Ala., USA, with a tour of CMC Steel Alabama. The meeting will focus on ladle campaigns/ladle deformation.
The following technical presentations were given:

  • “Technology Update on Laser Monitoring of Metallurgical Vessels,” by Michel Bonin of Process Metrix.

  • “Experiences With Laser Monitoring at SSAB Mobile,” by Greg Manfredi of SSAB.

  • “Latest Techniques in IR Thermal Imaging of Metallurgical Vessels,” by Tom Connors of Connors Industrials Inc.

  • “Experiences With Laser Monitoring at ArcelorMittal Burns Harbor,” by Sanjay Kumar of ArcelorMittal Burns Harbor.

  • “Auto Tracking of Steel Plant Ladles Using RFID-Wireless Systems,” by Federico Ahualli of AustralTek LLC.

The Ladle & Secondary Refining Technology Committee and the Refractory Systems Technology Committee toured SSAB Mobile during their joint meeting on 10–11 February 2016.

The LSRTC met 8 October 2015, Memphis, Tenn., USA. The LSRTC reviewed the 2015 Steel Industry Fatalities report, followed by a safety roundtable discussion.
Jimmy Barrett discussed the Secondary Steelmaking Refractories — A Practical Training Seminar program, which in-cluded casting refractories. Seminar attendee evaluations will be reviewed to see if this program change was beneficial. A recap of this seminar can be found on page 143–144 of this issue.
The recipient of the LSRTC Best Paper Award was selected. This award will be presented at the LSRTC meeting during AISTech 2016 in Pittsburgh, Pa., USA.
Helmut Oltmann, LSRTC papers chair, discussed the LSRTC’s technical session layout for AISTech 2016. Session topics were determined. Session chairs were selected.
The following technical presentations were given: 

  • Hydris Testing Improvements,” by Paul Turner, Heraeus Electro-Nite Co. LLC.

  • Ladle Flux Additions at Steel Dynamics – Butler,” by Chase Ault, Steel Dynamics Inc. – Flat Roll Group Butler.

 
 
The LSRTC service plaque was presented to Kamalesh Mandal (left to right): James Barrett, Sunday Abraham, Mandal and Dean Lovewell.

The LSRTC met 5 May 2015, Cleveland, Ohio, USA.
The following officers were elected:

  • Chair — Sunday Abraham, SSAB Iowa Inc.

  • Vice chair — Dean Lovewell, Ellwood Quality Steels

  • Papers chair — Helmut Oltmann, Nucor Steel– Berkeley

  • Members chair — Matt Hallam, Steel Dynamics Inc. – Structural & Rail Div.

  • Education chair — James Barrett, Allied Mineral Products Inc.

  • Roundup chair — Kevin Cotchen, SMS USA LLC

Meeting Highlights:
James Barrett gave an update on Secondary Steelmaking Refractories — A Practical Training Seminar, which  will be held on 5–8 October 2015 in Memphis,  Tenn., USA. Nucor Steel Memphis Inc. will serve as host plant, and Tony Faulds will give the keynote presentation.
The LSRTC discussed  its  fall 2015 meeting, which  will include presentations from Heraeus Electro-Nite Co. LLC, Steel Dynamics Inc. – Flat Roll Group Butler and INTECO PTI.

The LSRTC met 11 February 2015, Phoenix, AZ., USA. The 2014 Steel Industry Fatalities report was reviewed, followed by a safety roundtable discussion. 
The LSRTC finalized its technical sessions for AISTech 2015.
Nominations for committee officers for the 2015–2016 term were confirmed and will be announced at AISTech 2015 in Cleveland, Ohio, USA.
Jimmy Barrett gave an update on the 2015 Secondary Steelmaking Refractories — A Practical Training Seminar, which will be held on 5–8 October 2015 in Memphis, Tenn., USA. This annual training seminar will be extended one-half day to include casting refractories and process. Nucor Steel Memphis Inc. will serve as the host plant, and Tony Faulds will be the keynote speaker.
Kevin Cotchen gave an update on the Ladle and Secondary Refining Roundup. The format has been finalized, but assistance is still needed for gathering plant data.
The 2015 Germany Caster Study Tour agenda was presented for consideration by LSRTC producer members.
Presentations for the LSRTC’s fall 2015 LSRTC meeting were scheduled.
The following presentations were given: 

  •  “Casting Mold Fluxes,” by Darrell Sturgill, Stollberg.

  • “Argon Purged Sampling Benefits,” by Paul Turner and Garrett Kaste, Heraeus Electro-Nite Co.

  • “Benefits of Ladle Insulation,” by Lionel Rebouillat, Pyrotek Canada.

The LSRTC met 9 October 2014, Indianapolis, IN., USA. The 2014 Steel Industry Fatalities report was reviewed, followed by a safety roundtable discussion.

  • Dean Lovewell, LSRTC papers chair, led the discussion on AISTech 2015 technical session development:

  • Five LSRTC sessions were scheduled for AISTech 2015.

  • Session chairs nominated were Kamalesh Mandal, Sunday Abraham, Dean Lovewell, Helmut Oltmann, Matt Hallam, Chase Ault, Mike Callahan, Anna Voss, Kevin Cotchen, Heather Bryant, Alberto Vazquez, Barry Schrader and Lionel Rebouillat.

  • Papers chair and session chair instructions were reviewed.

  • Lovewell also discussed the 2014 Ladle and Secondary Refining Best Paper Award. This award will be presented at AISTech 2015 in Cleveland, Ohio, USA, in May 2015.

Kevin Cotchen, LSRTC roundup chair, gave an update on the Ladle and Secondary Refining Roundup.
Jimmy Barrett, LSRTC education chair, reviewed the 2014 AIST Ladle Refractory and Secondary Steelmaking — A Practical Training Seminar. There were 82 attendees this year. The 2015 ladle seminar will expand to two-and-a-half days and will include a presentation on casting refractories. 
The AIST Process Benchmarker® was discussed, as well as presentations for the next LSRTC meeting.

The LSRTC met 19–20 February 2014, Columbus, Miss., USA. Dean Lovewell, LSRTC papers chair, reviewed the LSRTC sessions for AISTech 2014. Additional session chairs were nominated, and session chair responsibilities were reviewed.
Kevin Cotchen and Heather Bryant will serve as roundup co-chairs to continue developing the Ladle & Secondary Refining Roundup format. Other LSRTC members on this roundup subcommittee include Greg Brasel, Kamalesh Mandal, Matt Hallam, April Pitts and Mike Callahan.
Jimmy Barrett, LSRTC education chair, gave an update on the 2014 Ladle Refractory and Secondary Steelmaking Training Seminar, to be held 6–9 October 2014 in Indianapolis, Ind., USA. Nucor Steel–Indiana will serve as the host plant, and Gerry Gillen will be the keynote speaker.
Pallava Kaushik solicited support from the LSRTC members to participate in the 2015 Clean Steel Symposium in Budapest, Hungary, which will be held in September 2015.
A roundtable discussion was held, in which the following topics were reviewed:

  • Producing steel in an EAF with less than 50 ppm nitrogen.

  • Percentage of nitrogen in DRI.

  • Co-jet burner gas.

  • Dewpoint levels.

  • Efficient slag killing/steel deoxidation.

  • Clean steel slag practices.

  • Usage of carbide in a can.

  • Alloying practices: at tap vs. open tap.

The LSRTC met 3 October 2013, Charleston, S.C., USA. Dean Lovewell, LSRTC papers chair, reviewed the abstracts submitted for AISTech 2014. Thirty-three papers were selected, as well as session topics. The LSRTC has scheduled six sessions, including joint sessions with the Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) and the Refractory Systems Technology Committee (RSTC). Nine LSRTC members were selected as session chairs. Additional LSRTC members will be asked to participate.
The format for the Ladle and Secondary Refining Roundup update is complete, and Kevin Cotchen, Kamalesh Mandal and Larry Wolfe will help secure plant statistics. Nucor Corp. and Steel Dynamics Inc. have submitted their data.
Jimmy Barrett reviewed the Ladle Refractory and Secondary Steelmaking Training Seminar, which had 76 attendees. The 2014 training seminar will be held in Indianapolis, Ind., USA, on 6–9 October 2014, with a tour at Nucor Steel–Crawfordsville (tentative). The LSRTC met with the RSTC to review this year’s seminar. Suggestions for expanding the seminar from two days to two-and-a-half days were discussed. Possible additional presentations would involve casting refractories, Technical Report No. 9, and an overview of United States Steel Corporation’s refractory programs. Barrett, education chair for both committees, will develop a new program outline for next year’s seminar.

The LSRTC met 10–11 September 2013, Ann Arbor, Mich., USA - The AISTech 2014 PRTC session development was reviewed by Blane Vines of Nucor Steel Tuscaloosa Inc. Six abstracts and two alternates were chosen for a Wednesday afternoon session. The AISTech 2014 PRTC Call for Papers topic was reviewed and revised for AISTech 2015. The AIST 2013 Plate/Steckel Mill Roundup was reviewed and finalized for the November issue of Iron & Steel Technology. Eric Thokar of Siemens provided an overview and update of Hot Flat Rolling Fundamentals — A Practical Training Seminar in conjunction with Plate Rolling Fundamentals Training, which will take place 3–6 March 2014 in Charleston, S.C., USA, at the Francis Marion Hotel. The course will finish with a tour of the Nucor Steel–Berkeley facility. Bob Spangler of ArcelorMittal provided an updated on the Plate Mill Module of the AIST Process Benchmarker® (APB). The parameters have been identified for this module, and the system can be released for programming. 

The LSRTC met on 12–14 February 2013 in Birmingham, Ala. A tour of CMC Steel Alabama provided the group with a look at the DC EAF, ladle metallurgy furnace and caster. Jon Ridgeway, manager, meltshop, led the extensive tour of the meltshop. The 2013 Ladle and Secondary Refining Best Paper Award will be presented to Debdutta Roy, P.C. Pistorius and R.J. Fruehan for their paper entitled, “The Effect of Silicon on Desulfurization of Al-Killed Steels.” This award will be presented during the LSRTC meeting at AISTech 2013 in Pittsburgh, Pa., on Monday, 6 May. An update on the 2013 Ladle Refractory and Secondary Steelmaking Training Seminar was provided by Jimmy Barrett, LSRTC education chair. This training seminar will be held on 30 September–3 October 2013 in Charleston, S.C. Nucor Steel–Berkeley will serve as the host plant, with Jeff Powers, steelmaking manager, as the keynote speaker.