|
|
|
July
2004 |
AIST:
Bigger, Stronger and Aiming to Be Even Better
Karen D. Hadley, managing
editor, and Stacy L. Varmecky, communications supervisor,
AIST (svarmecky@aist.org)
2004
Member and Steel Community Survey Results |
EAF Energy Optimization at Nucor-Yamato Steel
Andrè Pujadas
and John McCauley, Nucor-Yamato Steel, Blytheville, Ark.;
and Massimo Iacuzzi, MORE srl, Gemona del Friuli, Italy
Nucor-Yamato
Steel, Arkansas, has adopted various technologies in order to
increase the efficiency of chemical energy used in its EAFs.
A mass and energy balance is presented, along with an overview
of the results. |
Conversion
From a DC Furnace Conductive Bottom to an SMS Demag Pin-type
Bottom Electrode
J. Kevin Cotchen and Ernest G. Mueller,
SMS Demag Inc., Pittsburgh, Pa.; Robert Zeien and Eric Novicki,
Charter Steel, Saukville, Wis. (Kevin.Cotchen@sms-demag.net)
Charter Steel recently upgraded its 90-ton EAF from using
the conductive bottom concept to the pin-type bottom electrode.
This article summarizes the conversion project from its inception
through start-up and operation. |
From Blast
Furnace to EAF: The Technology for the Conversion From Integrated
Producer to High-quality Electric Minimill
Angelo A. Manenti, Core Furnace Systems
Corp., Coraopolis, Pa. (amanenti@corefurnace.com)
Using
the Consteel® process with hot metal charging, integrated
steel plants can achieve production rates of more than 300
tons/hour with a single-vessel shop. This article discusses
the technology and economic benefits of using the process. |
Start-up
and Operating Results of the CoJet® Sidewall Injectors
on a Consteel Furnace
Scott Andrews,
casting supervisor, Jeff Powers, melting and casting manager,
Mike Fox, melting and refractory supervisor, Nucor Steel–Hertford;
and Jim Zellman, account manager, Praxair Inc. (sandrews@nucorhertford.com)
A
three-injector CoJet system was designed and installed at
Nucor Steel–Hertford. This article details the start-up
and operating results of the first Consteel furnace to successfully
use multifunctional sidewall burner/lance technology. |
Benchmark
Study of EAF Plants Using the KT Injection System
Francesco Memoli, technology
service manager, and Per Lückhoff, senior process engineer,
Techint SpA, Italy (per.lueckhoff@techint.it)
New
injection technologies have increased the efficiency of thermal
and chemical input into the EAF. A benchmark study compares
the performance data of three plants using Techint’s
multipoint oxygen and carbon injection system with 40 other
EAFs. |
Thermomechanical Processing of HSLA Wide-flange Steel
Beams for Increased Core Toughness
Jörg
Peter and Kent D. Peaslee University of Missouri–Rolla
Dhiren Panda Nucor-Yamato Steel
|
|
|
 |
