|
|
|
February
2004 |
Communicating
Product Recipes to a Rolling Mill Control System
Scott Stebbing, Rolling
Mill Supervisor, Nucor Steel–Nebraska, Norfolk, Neb.;
Hooman Fazlollahi and Khalil Fazlollahi, Quad Infotech, Toronto,
Ont., Canada (sstebbing@nucorne.com)
A
model capable of two-way communication between the level 1
and level 2 systems for a rolling mill using OPC is described.
This system was recently installed at Nucor Steel–Nebraska. |
High-Speed
Steel Rolls for Long Products
Renato R. Xavier, Development
and Applications Supervisor — Rolling Mill Rolls Unit,
Miguel A. de Carvalho, Industrial Manager — Rolling
Mill Rolls Unit, Aços Villares S.A., Brazil; Eduardo
Cannizza, Sales Manager — Villares Corp. of America,
Pittsburgh, Pa.; Tom H. White, Power Components Inc., N.C.;
Amir Rivaroli Jr., Conciliator Tecnologia S/C Ltda.; and Amilton
Sinatora, Professor, Dept. of Mechanical Engineering, EPUSP,
São Paulo University (rxavier@villares.com.br)
High-speed steel rolls for long products rolling have been
shown to outperform standard cast-iron rolls in wear resistance
and surface quality. The development of high-speed steel rolls
is discussed, along with their application at Villares/Sidenor.
|
Modeling
System for Improved Roll Pass Design
Horacio Gutierrez and
Bruce V. Kiefer, Manager — Mill Process Modeling and
Analysis, Morgan Construction Co., Worcester, Mass. (kieferb@morganco.com)
An object-oriented computer model for simulation of the thermomechanical-metallurgical
processing in bar and rod rolling mills is described. The
model can be applied to a wide range of products and rolling
mill arrangements. |
Cold
Drawing of Tubes on a Movable Mandrel
Gennady I. Gulyayev,
Dr. Sc. (Tech.), Prof., Alexander I. Lobanov, Cand. Sc. (Tech.),
Victor V. Sergeyev, Dr. Sc. (Econ.), Osada State Tube Institute
(DTI-VNITI), Dniepropetrovsk, Ukraine; and Craig V. Darragh
(contributor), The Timken Co., Canton, Ohio (darragh@timken.com)
A new process of cold drawing tubes on a movable mandrel simultaneously
through a series of dies was developed. This process can be
used effectively in lieu of the cold rolling process for certain
tube diameters. |
Endless
Welding Rolling® and Spooler Lines
Andrea Zanoni, Sales
Manager, and G. Salvador, Manager — Information and Marketing,
Danieli Morgårdshammar (a.zanoni@dca.it)
Two processes for reducing production costs in wire rod and
bar mills are detailed, along with feedback from operating plants
in which they are utilized. |
The
MultiLine High-Speed Wire Rod Mill
Matthias Burkhardt (left),
Vice President — Wire Rod and Bar Mills, and Hubert Müller
(center), General Manager, Proposals and Sales — Wire
Rod and Bar Mills, SMS Meer GmbH, Mönchengladbach, Germany;
and Glyn Ellis (right), Manager — Sales and Proposals,
SMS Meer GmbH, Pittsburgh, Pa. (glyn.ellis@sms-demag.net)
A concept developed by SMS Meer for the production of wire rod
saves time and increases production. The advantages of implementing
this concept, including schedule-free rolling, are discussed.
|
SMI’s
Rebar Detailing Education Program
Erin B. Hart, Associate
Editor, Iron & Steelmaker
The number of experienced rebar detailers has dwindled in the
last 10 to 20 years. To counteract this problem, SMI Rebar Virginia
initiated an educational program to prepare more people for
the occupation. |
|
|
 |
