Ion VELA


20-63 STUDII PRIVIND OPTIMIZAREA ROLELOR DE TRAGERE LA TURNAREA CONTINUĂ VERTICALĂ A OŢELULUI

STUDIES REGARDING THE OPTIMIZATION OF
WITDRAWING ROLLERS AT VERTICAL CONTINUOUS
CASTING OF STEEL
This paper presents an optimization method for withdrawal rollers to the
withdrawal plant at vertical continuous casting of steel. Optimizing rollers was
achieved by: use of statistical calculations applied to quantities, experimental
measurements obtained directly from the withdrawal of blanks, using
techniques CAD (Computer Aided Design) and CAE (Computer Aided
Engineering) design, modeling and optimization of cylinders; using finite
element method, FEM for static and dynamic simulations, the behavior of
withdrawal-straightening rolls in continuous casting process for determining
stress, elongation and movements that occur in this process. The study is both
experimental and theoretical, and aims to improve the process of withdrawal of
the semi continuous casting with vertical curvilinear wire of steel, using modern
methods of analysis, design and optimization of mechanical drives.
Keywords: vertical continuous casting, semi-roller drawing optimization,
CAD, CAE
Cuvinte cheie: turnare continuă verticală, semifabricate, role de tragere,
optimizare, CAD, CAE

63 STUDII PRIVIND OPTIMIZAREA ROLELOR DE


20-64 METODE DE OPTIMIZARE A INSTALAŢIILOR DE TRAGERE LA TURNAREA CONTINUĂ ORIZONTALĂ A METALELOR

METHODS OF OPTIMIZATION OF FACILITIES
FOR WITHDRAWAL FROM HORIZONTAL
CONTINUOUS CASTING OF METALS
This paper presents variants of modernization process of withdrawing
the profiles in horizontal continuous casting (HCC) of metals. Horizontal
continuous casting is a modern method of directly obtaining different types of
metallic semi-products by casting without using the laminated lines. As a
method, continuous casting is made by introducing liquid metal with a welldefined
temperature in a tank with water cooled walls, at interior, called
crystallizer and evacuation „wire” of solidified metal. Method of continuous
casting of ferrous and nonferrous metals and steel was imposed because it has
advantages over conventional casting into ingots. These advantages are: the
removal of metal is improved, it is obtaining a semi-finished product with a
superior quality surface, a lower segregation removes, consumption of ingot
molds and cast steel bridges are removed.
Keywords: horizontal continuous casting, semi-optimization methods,
modernization
Cuvinte cheie: turnare continuă orizontală, semifabricate, metode de
optimizare, modernizare

64 METODE DE OPTIMIZARE A INSTALAŢIILOR