September
2005
|
steeluniversity.org: The Solution to the Sustainability
of Ferrous Metallurgy
David J. Naylor, project
director — steeluniversity.org, International Iron and
Steel Institute, Brussels, Belgium (naylor@iisi.be)
steeluniversity.org is a Web-based, e-learning resource that
covers many aspects of steel production, applications and
metallurgical principles. Various modules simulate steel processing
from raw materials to final products. This resource is intended
to draw more students into the steel industry. |
Improvement
in Surface Quality and Internal Cleanliness of Thin-slab Casting
at HYLSA
Marco A. Herrera G.
(left), meltshop process manager, and Ricardo Santos P. (right),
process engineer, Flat Rolling Div., HYLSA SA de CV, San Nicolás,
Mexico (mherrera@hylsamex.com.mx, rsantos@hylsamex.com.mx)
Increased quality requirements for automotive-grade steel
led HYLSA to review its ladle furnace metallurgy and continuous
casting process. This article discusses modifications that
were implemented, along with the results that led to better-quality
steel. |
Recent Developments in the Integrated Technology of
Compact Strip Production
Carl-Peter Reip (left),
senior specialist — R&D Div., Wolfgang Hennig (center),
general manager — R&D Div., and Rolf Hagmann (right),
executive vice president — Hot Rolling Mills Div., SMS
Demag AG, Düsseldorf, Germany (carl-peter.reip@sms-demag.com)
This article highlights recent developments in the manufacture
of hot strip for welded line pipes. Additionally, special
features of CSP technology in the areas of casting, direct
hot charging, rolling and
cooling with respect to final hot strip properties are discussed. |
Application
of Rapid Inclusion Identification and Analysis
Scott R. Story (left),
senior project research engineer, and Samuel M. Smith, research
manager, U. S. Steel Corp. Research and Technology Center,
Monroeville, Pa. (srstory@uss.com); Richard J. Fruehan (center),
U. S. Steel professor, Materials Science and Engineering Dept.,
Carnegie Mellon University, Pittsburgh, Pa.; Gary S. Casuccio,
vice president, Michael S. Potter (right), materials scientist,
and Traci L. Lersch, materials scientist, RJ Lee Group Inc.,
Monroeville, Pa.
ASCAT, an automated steel cleanliness analysis tool, can determine
the size and composition of hundreds of inclusions in less
than 30 minutes. ASCAT’s application to a number of
metallurgical concerns is presented. |
EDT: Roll Texturing Technology as a Base of Modern
Surfaces in Automotive Cold Mill Flat Products
Michael Utsch (left),
project manager — roll machining, and Peter Vinke (right),
manager, technical consulting — roll machining, Waldrich
Siegen Werkzeugmaschinen GmbH, Burbach, Germany (michael.utsch@waldrich.de,
peter.vinke@waldrich.de)
Electrical discharge texturing (EDT) can create textures on
steel sheet that fulfill the demands of appearance and corrosion
resistance in the automotive industry. In this article, the
cold rolling process is discussed, as well as modern coating
and texturing techniques. |
Effect of Mold Oscillation on Powder Consumption and
Hook Formation in Ultralow-carbon Steel Slabs
Ho-Jung Shin (top left),
Go-Gi Lee (top right), Sin-Myoung Kang and Seon-Hyo Kim (bottom
left), Department of Materials Science and Engineering, Pohang
University of Science and Technology, Pohang, South Korea
(ceraby@postech.ac.kr); Wung-Yuel Choi and Jang-Hum Park,
Steelmaking Department — Technology Development Group,
POSCO Gwangyang Works, Jeonnam, South Korea (missko@posco.co.kr);
and Brian G. Thomas (bottom right), Department of Mechanical
and Industrial Engineering, University of Illinois at Urbana-Champaign,
Urbana, Ill. (bgthomas@uiuc.edu)
This article investigates the effect of mold oscillation conditions
on slab surface quality, including an examination of subsurface
hook characteristics. The effects of casting conditions on
mold flux consumption and hook formation are quantified. |
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