Technology Committees


Ladle & Secondary Refining Technology Committee Activities

 
 
Sunday Abraham (left), LSRTC chair, presented a plaque of appreciation to Eugene Pretorius (center) and Helmut Oltmann (right), Nucor Steel–Berkeley, for hosting the LSRTC and MSCTC’s tour.

The LSRTC and MSCTC met 15–16 February 2017, Charleston, S.C., USA. The LSRTC and MSCTC finalized their respective AISTech 2017 technical sessions.
The winner of the AIST 2017 Ladle and Secondary Refining Best Paper Award was announced. This award will be presented at AISTech 2017 during the LSRTC meeting.
Bill Jones presented the award, named after Kent Peaslee. The MSCTC award subcommittee will coordinate with the Refining and Casting Technology Division to evaluate the nominees.
Ron O’Malley moved the motion to award the Kent Peaslee Award to the best inclusion engineering paper from the previous year’s AISTech conference. The motion was seconded and carried unanimously.
Committee officers for 2017–2018 were discussed and elections will take place at each committee’s meeting during AISTech 2017.
Jimmy Barrett reviewed the activities and attendance of the last training seminar, Secondary Steelmaking Refractories — A Practical Training Seminar. The next seminar is scheduled on 23–26 October 2017 in Milwaukee, Wis., USA. Charter Steel – Saukville will serve as host plant.
The 2017 Caster Japan Study Tour will be held on 5–11 November 2017. The program for the tour, which is  awaiting approval from the ISIJ, was presented. The producers of the MSCTC and LSRTC were invited to register and attend this study tour.

The following technical presentations were given:

  • “High Definition — High Performance HD Mold,” by Joseph Laughlin, SMS USA LLC.

  • “Ladle Free Open – Ladle Well Sand,” by Scott Story, U. S. Steel Research and Technology Center.

  • “Designing Mold Powder,” by Darrell Sturgill, IMERYS.

  • “Investigation of Mold Flux Crystallization by Continuous Cooling and Isothermal Methods,” by Elizabeth Peterson, Missouri University of Science and Technology.

  • “Computer Modeling of Refining in the Ladle,”   Chenn Zhou and Sotiri Hovardas, Purdue University Northwest.

  • “SiC Production and Its Use in Steelmaking,” by Brad Meibers, Washington Mills.

  • “SiC as a Tap Ladle Deoxidizer,” by Scott Story.

The committees discussed their fall meetings. The LSRTC will meet after Secondary Steelmaking Refractories — A Practical Training Seminar in Milwaukee, Wis., USA, on 26 October 2017. The MSCTC will meet on 4–5 October 2017 at the Colorado School of Mines.
The LSRTC and MSCTC capped off their meeting with a tour of Nucor Steel–Berkeley’s steelmaking operations.

The LSRTC and MSCTC enjoyed a plant tour of Nucor Steel–Berkeley during its 15–16 February 2017 meeting.
 

The LSRTC and RSTC met 13 October 2016, Birmingham, Ala., USA co-located with Secondary Steelmaking Refractories — A Practical Training Seminar​. The LSRTC and RSTC held separate business meetings and convened as a group for technical presentations.
During their separate meetings, each committee reviewed the 2016 Steel Industry Fatalities report, followed by a safety roundtable discussion on the cause, age, area and annual breakdown of incidents.
Rakesh Dhaka, RSTC papers chair, led a discussion on the RSTC’s AISTech 2017 technical sessions. Twenty-nine papers have been selected and organized into six sessions, three of which will be held jointly with other committees. Matt Hallam discussed the LSRTC’s technical session development, which includes 21 abstracts. Session titles and chairs were identified and the roles of the session chairs and papers chair were reviewed.
The 2017 AIST RSTC Best Paper Award was discussed, along with the development of evaluation criteria. The winner of the 2017 AIST Ladle and Secondary Refining Best Paper Award was announced. These awards will be presented at each committee’s respective meeting at AISTech 2017 in May.
Jimmy Barrett, LSRTC education chair, reviewed Secondary Steelmaking Refractories — A Practical Training Seminar, noting a good producer turnout this year. The next conference will be held 23–26 October 2017 in Milwaukee, Wis., USA. Charter Steel – Saukville will serve as host plant.

The following presentations were given:

  • “Refractory Choice for Steel Ladles,” by Cassie Martin, D. Martin Enterprises.

  • “Effect of Steel Mill Refractory Practices on Ladle Shell Lives and Update on Technical Report No. 9,” by Matt Nousak, Middough LLC.

The LSRTC met 13 October 2016, Birmingham, Ala., USA. The LSRTC reviewed the 2016 Steel Industry Fatalities report, followed by a safety roundtable discussion.
Matt Hallam led a discussion on AISTech 2017 technical session development. Twenty-one abstracts have been scheduled by the LSRTC, with one panel discussion. Session chairs selected, and the roles of papers chair and session chair were reviewed.
The recipient of the 2017 Ladle and Secondary Refining Best Paper Award was selected. This award will be presented at the LSRTC meeting during AISTech 2017.
Jimmy Barrett, LSRTC education chair, discussed the 2017 Secondary Steelmaking Refractories — A Practical Training Seminar. The seminar will be held on 23–26 October 2017 in Milwaukee, Wis., USA, with Charter Steel – Saukville serving as host plant.
The following presentations were given:

  • “Refractory Choice for Steel Ladles,” by Cassie Martin, D. Martin Enterprises.

  • “Effect of Steel Mill Refractory Practices on Ladle Shell Lives” and an update on AIST Technical Report No. 9 was presented by Matt Nousak, Middough LLC.

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.

The Ladle & Secondary Refining Technology Committee (LSRTC) met in Jacksonville, Fla., following AIST’s Ladle Refractory and Secondary Steelmaking — A Practical Training Seminar on Thursday, 4 October 2012. Greg Brasel, LSRTC chair, presented the AISTech 2013 Call for Papers session schedule that Sunday Abraham, papers chair, has developed. The Call for Papers includes joint sessions entitled, “Inclusion Engineering” and “Clean Steels.” This latter symposium will consist of five scheduled sessions at AISTech 2013 in Pittsburgh, Pa. The Ladle & Secondary Refining Award for Best Paper will be finalized by 1 November by the selection subcommittee. Also discussed was the Ladle & Secondary Refining Roundup, which needs to populated by producer members. The Continuous Casting Technology Committee (CCTC) will be approached to help complete this survey. Helmut Oltmann, LSRTC APB chair, presented a list of secondary refining parameters to start developing the LSRTC’s APB module. The 2013 Ladle Refractory and Secondary Steelmaking Seminar will expand on the processing aspects in ladle refining. The next LSRTC meeting will be on 13–14 February 2013 with a possible tour of U. S. Steel – Fairfield Works’ steelmaking operations.

The Ladle & Secondary Refining Technology Committee (LSRTC) met on Tuesday, 8 May in Atlanta, Ga. The LSRTC officers for 2012–2013 will be Greg Brasel, chair; Kamalesh Mandal, vice chair; Sunday Abraham, papers chair; Eugene Pretorius and Helmut Oltmann, APB co-chairs; and Jimmy Barrett, education chair. The Ladle & Secondary Refining Best Paper Award was presented to Pallava Kaushik and Colleen Lyons for their paper entitled, “Inclusion Characterization of Titanium Stabilized Ultralow-Carbon Steels — Impact of Oxygen Activity at Deoxidation.” Brasel requested that each committee member participate in populating the Ladle & Secondary Steelmaking Roundup, which will serve as a basis for the future APB Secondary Steelmaking Module.
Barrett reviewed the 2012 Ladle Refractory and Secondary Steelmaking — A Practical Seminar, which will be held on 1–3 October in Jacksonville, Fla. Gerdau Jacksonville will serve as the host plant. The next LSRTC meeting will be on Monday, 1 October from 2 to 5 p.m., where an APB update will be given. On Thursday, 4 October, an AISTech 2013 Call for Papers meeting will take place from 8 a.m. until noon.

The Ladle & Secondary Refining Technology Committee (LSRTC) and the Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met in Arlington, Texas, on 25–26 January 2012 with a tour of Gerdau Midlothian steelmaking facilities. Both committees reviewed the 2011 Steel Industry Fatalities Report, followed by a safety roundtable discussion. Committee papers chairs Kamalesh Mandal, LSRTC, and Lamine Fadiga, MSCTC, discussed their respective session schedules for AISTech 2012. The committees have two joint sessions scheduled for Tuesday, 8 May, during AISTech. Greg Brasel, LSRTC vice chair and roundup chair, presented a Ladle & Secondary Refining Roundup format that the LSRTC will complete and plans to publish along with the Continuous Caster Roundup in the July 2012 issue of Iron & Steel Technology. Jimmy Barrett, LSRTC education chair, presented the 2012 Joint Ladle Refractory and Secondary Steelmaking — A Practical Training Seminar program outline. This joint committee seminar will be held 1–3 October 2012, with Gerdau Jacksonville as the plant host.
This joint meeting’s topic was clean steel practices. There were six presentations: “SEM Inclusion Analysis as a Process” by Helmut Oltmann, Nucor Steel–Berkeley; “Steelmaking Practices to Improve Cleanliness of Ti-Stabilized Ultralow-Carbon Grades” by Scott Story, U. S. Steel Research; “Steel Cleanliness: Calcium Treatment Evaluation at No. 2 Steel Producing at ArcelorMittal Indiana Harbor USA” by Lamine Fadiga, ArcelorMittal USA; “Development and Application of Clean Steel Technologies” by Chad Clark and Taylor Robie, Gallatin Steel; “Calcium Modification of Alumina and Spinel Inclusions in Aluminum-Killed Steel” by Chris Pistorius, Carnegie Mellon University; and “Steel Cleanliness Evaluation of Air-Melt, ESR and VAR Steels” by Peter Glaws, The Timken Co. The next LSRTC meeting will be Tuesday, 8 May, and the next MSCTC meeting will be Monday, 7 May, both at AISTech 2012 in Atlanta.