Metallurgy — Steelmaking & Casting Technology Committee Activities
The MSCTC met on 20–21 March 2013 in Boulder, Colo. Chris McCowan, NIST Laboratories, acted as tour guide, showing the committee the mechanical testing laboratory, materials degradation in alternative fuel environments program, materials degradation in supercritical carbon dioxide program, Charpy test program, hydrogen atomic clock and the precision imaging facility. The tour ended with a question-and-answer session. The MSCTC officers for the 2013–2014 term are: Chad Cathcart, chair; Roger Maddalena, vice chair; Scott Story, papers chair; and Bill Jones, Internal Quality Rating System Subcommittee chair. This subcommittee will investigate a possible collaboration with NIST Laboratories in establishing a standard for an Internal Quality Rating System. The fall 2013 MSCTC meeting will be held on 29–30 October in Memphis, Tenn.
The MSCTC met on 16 October 2012 in Pittsburgh, Pa., before the 2012 Continuous Casting — A Practical Training Seminar. The MSCTC and the Continuous Casting Technology Committee shared a joint afternoon meeting with three presentations: Dewey Humes presented, “Caster Innovations Being Developed by SMS Siemag”; Roger Maddalena presented, “Inclusion Observations in the Tundish”; and Bill Smith and Shaun Sutton presented, “Breakout Protection From IGS Corp.” Chad Cathcart, papers chair, presented the AISTech 2013 session schedule for discussion.
The MSCTC will take an active role in the following APB modules: EAF, BOF, ladle refining, slab caster and shape caster. The Internal Quality Rating System subcommittee reported some progress made with eight plants surveyed to establish a statistical database of quality ratings. The goal will be to have at least one dozen plants completing this ratings survey. The MSCTC is considering having its fall meetings coincide with the MS&T conference. This meeting venue decision will be discussed at the next meeting, which will be held 20–21 March 2013 in Boulder, Colo., with tours of the NIST Laboratories and the Colorado School of Mines.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met during AISTech 2012 on 9 May 2012 in Atlanta, Ga., for a brief business meeting. The 2012–2013 MSCTC officers were elected with the following results: William Slye of Vesuvius USA, chair; Lamine Fadiga of ArcelorMittal USA, vice chair; and Chad Cathcart of U. S. Steel Canada, papers chair.
The committee has organized an Internal Quality Reporting System Subcommittee, whose members will develop a method to identify and classify internal steel quality characteristics. The subcommittee will be meeting on a semi-frequent basis to develop the system. The members also discussed creating a training seminar to educate steel industry personnel on clean steel practices. Other items discussed were gaining additional participation in the MSCTC from academia, identifying liaisons with other AIST Technology Committees and the selection of technical presentation topics to be discussed at future meetings.
MSCTC met in Pittsburgh, Pa., on 26–27 October 2011. The meeting began with the attendees visiting theThe Metallurgy — Steelmaking & Casting Technology Committee V&M Star melting facility in Youngstown, Ohio. Mark Rambo, meltshop manager, greeted the attendees and provided a safety video and discussion of safety requirements at V&M Star. During the tour, the attendees visited the refractory preparation area, the EAF pulpit, LMF pulpit and the continuous caster. The employees at V&M Star were particularly mindful to describe their modifications to the stirring equipment on their steel ladles. To remove employees from a potentially harmful environment when connecting the ladle to the stirring gas source, V&M and its employees devised an alternative mechanism to common automatic hook-up systems. The resulting device has been effective in gas transportation and has required very little maintenance. The tour concluded with a plaque presentation to Mr. Rambo and a group photo of the V&M Star tour guides and MSCTC tour attendees. On 27 October, the MSCTC met at the AIST headquarters for their business meeting and technical discussion. After noting safety egress routes and a review of AIST business items, the committee began to develop tools that would help steel metallurgists determine how internal defects are developing in finished product and how to reduce the reoccurrence of the defects. The committee will focus on developing a “decision tree” for identifying inclusions in cast products, and will report on their progress in the future meetings. An additional subcommittee task will be to develop an internal slab quality rating system for macro etches and sulfur prints. AISTech 2012 MSCTC sessions were also discussed. Independent MSCTC sessions include refining technology, clean steel practices and steel solidification, and joint sessions with the AIST Continuous Casting Technology Committee were organized. The meeting concluded with technical presentations by U. S. Steel – Granite City Works for their near-edge laminations in-line pipe program, and by SMS Siemag on their “Optimization of Dynamic Soft-Reduction of Continuously Cast Slabs” presentation. The next meeting will be held jointly with the AIST Ladle & Secondary Refining Technology Committee in Midlothian, Texas on 25–26 January 2012. The technical focus of the meeting will be clean steel practices and the plant tour will be hosted by Gerdau Midlothian.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met for a brief lunch meeting during AISTech 2011 on Wednesday, 4 May 2011. Champion Chigwedu, MSCTC chair, opened the meeting and thanked all for attending both the meeting and AISTech 2011. The AIST Antitrust Guidelines and staff announcements were read and noted. Officer elections for 2011–2012 were held. Bill Jones, U. S. Steel – Granite City Works was elected chair; Bill Slye, Praxair Inc., assumed the role of vice chair; and Lamine Fadiga, ArcelorMittal Indiana Harbor, was elected to lead the organization of the MSCTC sessions for AISTech 2012 as papers chair. The MSCTC mission statement was reviewed and approved as it currently stands. A review of the MSCTC 2011 technical sessions was given. The committee organized six successful sessions for AISTech 2011. Leading the strength of the program was the organization of five sessions by Lifeng Zhang on “Clean Steel and Inclusion Control.” With the strength of the clean steel sessions, the committee agreed to continue to schedule multiple sessions on the subject in the future. With the strong support for the latest technology of clean steel and inclusion control, the committee will investigate the viability of creating a standalone clean-steel training seminar. The committee will also develop a “defect decision tree” in future meetings as a tool to identify and standardize inclusions. The meeting concluded with a service appreciation plaque presented to the outgoing chair and the identification of potential meeting locations for fall 2011. The next MSCTC meeting will occur on 5–6 October 2011 in Pittsburgh, Pa., and the technical topic of the meeting will be as-cast internal quality.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) held their 2011 winter meeting at ArcelorMittal Burns Harbor on 23–24 March 2011. On 23 March, the members were given the opportunity to tour the steelmaking facilities at ArcelorMittal Burns Harbor. Darrell Swickard, AM Burns Harbor BOF manager, hosted the group in the BOF and secondary refining facilities. Milan Avanaja, caster manager, and David Sowa, caster engineer, hosted the members in the continuous casting facilities. Included in the tour were the BOFs, the ladle refining stations, the RH degasser and both continuous casters. The tour hosts were very informative and were available for questions during the tour. On 24 March, the members met for their technical and business meeting at the ArcelorMittal Burns Harbor steelmaking offices. The meeting began with a thorough question and answer session with Jim Bradley, Gabe Rocha, Mark Emaus, Jim Strobel and other representatives from the steelmaking department. The members then provided technical presentations from their facilities. Chad Cathcart, U. S. Steel Canada, presented their steel temperature control program. Chris McVay, Ellwood Quality Steel, presented information on macroinclusions in calcium treated steels with elevated sulfur. Bill Jones, U. S. Steel – Granite City Works, presented the company’s steel temperature control program. Champion Chigwedu, ArcelorMittal Burns Harbor, presented their program on automation improvements at the continuous casters. During the business meeting, the committee made considerations for officer nominations and a review of the AISTech 2011 MSCTC technical sessions, which include the five sessions on clean steel and inclusion control. The committee then developed a list of topics to be voted on during their 2 May 2011 meeting at AISTech. Technical presentations will be developed on the topics and presented during the fall 2011 meeting. The final location for the fall meeting will also be finalized on 2 May.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) held a teleconference/Internet meeting on 28 Oct 2010. Following the approval of the prior meeting’s minutes, a review of the AIST Anti-Trust Guidelines and the AIST staff announcements, the committee discussed the structure of future meetings. It was decided that future meetings will follow the format of a tour in the morning and a business/technical discussion in the afternoon. The next meeting will include technical presentations on the ladle exchange procedure at ArcelorMittal Burns Harbor, temperature control in the steelmaking process at U. S. Steel Canada, experience with macroinclusions on calcium-treated steels with elevated sulfur, and the temperature control program at U. S. Steel Granite City Works. A tour of ArcelorMittal Burns Harbor will also be included in the meeting on 24 Mar 2011. To promote attendance, the technical program and agenda for the meeting will be e-mailed to interested individuals in the North American steel industry. A brainstorming session was then conducted to determine how to increase member participation in the MSCTC. A list of 12 topics was established from which the committee will generate surveys of industry practice, which would then be reviewed at future meetings. The question and answer database was also discussed as a useful tool for the members of the MSCTC. Questions submitted to the database would be sent to members for their response as to their experiences with a particular topic. The results would be summarized in a roundtable discussion at the next meeting. The former system is no longer operational, and the committee would like to investigate possible alternatives to the system. For the fall meeting, the MSCTC may meet with the newly created AIST Pipe & Tube Technology Committee to discuss clean steel practices for pipe production. The last item of business was the development of the MSCTC sessions at AISTech 2011. With the support of Lifeng Zhang of the Missouri University of Science & Technology, the Ladle & Secondary Refining Technology Committee and the Continuous Casting Technology Committee, the MSCTC has organized five sessions on inclusions and clean steel practices. Additionally, the committee has organized an independent session focused on Metallurgy — Steelmaking and Casting. The MSCTC will hold a meeting on 4 May 2011, during AISTech 2011.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met on 4 May during AISTech 2010. The committee held introductions and reviewed the current committee status. Recently, due to the economic climate, the MSCTS has held joint meetings with other AIST Technology Committees, such as the Continuous Casting Technology Committee and the Ladle & Secondary Refining Technology Committee. They will begin to hold independent meetings once again in September 2010. An election of officers was held. Champion Chigwedu of ArcelorMittal USA accepted the position of chair, Bill Jones of U. S. Steel Granite City Works accepted the position of vice chair, and Bill Slye of Praxair Inc. accepted the position of papers chair.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met on 6 May, during AISTech 2009. After introductions, AIST staff announcements and a note regarding the AIST Anti-Trust Guidelines, Bill Jones, immediate past chair, opened the meeting. Officer elections were held. The current chair, Chad Cathcart of U. S. Steel Canada, was re-elected as chair; Champion Chigwedu of ArcelorMittal USA was elected vice chair; and Bill King will be papers chair. A review of the MSCTC mission statement followed, and the current wording was approved. The MSCTC then discussed their future meeting plans. The committee will discuss options for the fall during an upcoming teleconference. The winter meeting is tentatively planned for the end of February 2010 in Pittsburgh, Pa. Possible technical topics for the upcoming meetings would be steel mill start-ups, carbon footprint reduction, chemistry or temperature control, and operating continuously in a non-continuous mode.
The Metallurgy — Steelmaking and Casting Technology Committee (MSCTC) held a teleconference meeting on March 25 to update its members on committee activities. A review of the committee’s membership and the requirements for membership took place, with a note that members who had not paid their 2009 dues would be suspended from the committee. The chair received a list of the members who were to be suspended. The MSCTC then reviewed the five sessions they organized for AISTech 2009. Substitute chairs were identified as needed. A discussion was then held regarding future committee plans. The fall meeting may be a Web-based meeting if travel restrictions continue. The technical topic of the meeting would be soft reduction and gap alignment for continuous casters. The meeting may be co-located with the Continuous Casting Technology Committee. The committee would also begin development of their 2010 plans, which will be organized by the committee chair. The meeting concluded with a word of appreciation from the committee chair for everyone’s participation.
The Metallurgy — Steelmaking & Casting Technology Committee (MSCTC) met in Maumee, Ohio, on 15 Oct. The committee chair, Chad Cathcart of U. S. Steel Canada (formerly Lake Erie Steel), welcomed the committee members to the meeting and thanked them for participating. The meeting was attended by only producers, each of whom then made presentations about chemistry control in their meltshops. An open exchange of information took place. The use of the Q&A database, which is now being administrated by AIST for solving various problems and answering questions of the members, was discussed. The system is expected to be available for the next MSCTC meeting. A subcommittee reviewed the available abstracts for AISTech 2009 and chose a number of them dealing with flow, inclusions, quality and solidification. This subcommittee also started to assign chairs for each session. The next meeting was tentatively scheduled for February 2009 at Severstal Mississippi in Jackson, Miss.