Ladle & Tundish Refractories


Schedule

22–25 October 2018 • Hyatt Place Charleston – Historic District • Charleston, S.C., USA

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Monday, 22 October 2018

4 p.m.

Registration 

Tuesday, 23 October 2018

7 a.m.

Registration and Breakfast   

8 a.m. 

Welcome Keynote Speaker

8:30 a.m. 

Introductions    

8:45 a.m. 

Raw Materials, Bricks and Shapes and Monolithics
Ruth Engel, Refractory Consulting Services
The seminar will begin by presenting the raw materials used in the manufacture of refractories, why they are used, their availability and characteristics. Using this knowledge, the role the different refractory components play and their effect on the properties of a brick/shape will be discussed. This knowledge will be extended to monolithics, where additional parameters like installation and dry-out, if applicable, will be covered

9:45 a.m. 

Break   

10 a.m.

Brick Manufacturing
Korey Skala, RHI Magnesita
Refractory brick production from raw materials to finished product.

10:45 a.m. 

Break

11 a.m.

Ladle Construction Design and Insulation
Rob Doty, IMACRO Inc.
A wide-ranging discussion about the many options in ladle refractory design. Then the basics of heat transfer will be covered, from molten steel through refractories to ladle shells, followed by insulation choices, how they affect ladle shell temperatures, and refractory expansion dynamics.

Noon

Lunch

1 p.m.

Slide Gates, Tundish Gates and Ladle Stirring
Carl Corbin,Vesuvius USA
This overview includes reasons for stirring, gas delivery, systems, basic plug design, achieving results and troubleshooting. The slidegate discussion will include general refractory selection, mechanism types and troubleshooting.

2 p.m. 

Break

2:15 p.m.

Ladle Pre-Heating and Handling
Jimmy Barrett, Allied Mineral Products Inc.
Steel ladles: pre-heating, refractory wear mechanisms and measuring options.

3 p.m.

Break

3:15 p.m. 

Tap-to-Cast Operations
Harriet Dutka
This presentation is a brief overview that focuses on answering the “why’s” of certain practices and procedures in steelmaking. If you are a new to steelmaking or are in a non-technical role, this presentation will answer many of the questions you would like to ask.

4 p.m. 

Panel Discussion and Reception
Moderator: Jimmy Barrett, Allied Mineral Products Inc.  Panelists: Harriet Dutka, Helmut Oltmann, Nucor Steel–Berkeley; Carl Corbin, Vesuvius USA

Wednesday, 24 October 2018

7 a.m.

Breakfast    

8 a.m. 

Safety: Past/Present/Future
John Panconi, BISCO Refractories Inc. ​

8:30 a.m. 

Refractory Materials Testing and Product Selection
Rakesh Dhaka, United States Steel Corporation
Discusses commonly used test methods and their use in selection of refractories.

9:30 a.m. 

Break

9:45 a.m. 

Secondary Steelmaking Process — LMF
Helmut Oltmann, Nucor Steel–Berkeley
This presentation provides a review of the LMF processes to modify chemistry and temperature of the steel in the ladle and the impact on refractories.

10:45 a.m.

Break

11 a.m.

Infrared for Steel Processes Affecting Refractories
Tom Connors, Connors Industrials Inc.
The non-visible spectrum of infrared wavelengths provides the primary steelmaker with: 1. Safety 2. Ability to measure furnace, ladle and tundish shell temperatures with accuracies of ±2% to evaluate heat transfer characteristics of various refractories substrates. 3. Ability to "see" ladle meniscus during tapping. 4. Ability to measure ladle refractory temperatures just prior to tap. 5. Ability to "see" factors that create ladle arc flare. 6. Ability to "see" ladle meniscus variations in vacuum tank degassers with data of torr levels. Using the data above supports the refractory manager in making an informed decision. Scheduled maintenance is inherently less expensive than reactionary maintenance.

11:30 a.m.  

Ladle Laser Program
Michel Bonin, Vesuvius USA​

Noon

Lunch

1 p.m.

Ladle Free Opens: Theory and Application
James Conrad, Fedmet
Ladle free-opening theory will be discussed. Methodology for tracking, identifying and correcting process variables will also be examined.

1:45 p.m. 

Break

2 p.m. 

Total Tundish Technology
Daniel Schaner, Vesuvius USA​

3:15 p.m. 

Break

3:30 p.m.

Principles of Mold Flux Technology
Darrell Sturgill, Imergys Steelcasting USA Inc.
Participants will receive an overview of continuous casting fluxes from production through their end use. Included in the discussion are continuous casting flux selection criteria.

4:15 p.m.

Flow Control Products
Josh Kaser, RHI/VRA
Ladle shrouds, stopper rods and tundish shrouds will be discussed.

Thursday, 25 October 2018

7 a.m.  

Breakfast

8 a.m. 

Plant Tour of Nucor Steel–Berkeley

Noon

Return From Plant Tour and Adjourn