Análisis estructural de cucharas de colada de acero de TAMSA

SARMIENTO, G. S.; LUIS JOSE OTEGUI; CISILINO, A; MIZDRAHI, M.; PIZZI, M.; ESPINOSA, R.; DÍAZ, R.

San Nicolás

Congreso; Conferencia Usos del Acero - Instituto Argentino de Siderurgia; 2004

Instituto Argentino de Siderurgia (IAS)

The design and the finite element analysis of two different alternatives for the capacity increment of molten steel ladles of TAMSA, México, are described in this paper. Initially these ladles was designed for hosting 170 tons of liquid steel. With the present study we get an increment of the ladles height in 200 mm, which corresponds to an increment of the theoretical capacity in 10 to 11 tons, carrying it to a value of 163 tons.               Two alternative ways has been study for this capacity increment: a) mantaining the conicity of the shell in  the zone of the extension; and b) the shell extension with cilindrical geometry.                 The design has been verified by means of the application of Standard AISE N° 9, and also by finite element analysis for the original geometry as well as both alternatives proposed, using the system ABAQUS/Standard. The three finite element models has been developed by means of ABAQUS/CAE, the Pre- and Post-processor of  ABAQUS.                 The heat transfer models for calculating the thermal loads over the structure has been adjusted by thermographies performed in plant, obtaining good agreements between the models and the measurements. By the application of the Standard AISE N° 9 as well as the finite element analysis, one can conclude that both geometric aternatives are adequate under a structural point of view. A detailed description of the results of strain and stresses at the complete ladle shell are presented in the report of ref. 1. They can be used for later analysis for the evaluation of new distributions of refractories, and for modifications of the mechanical design of some structural details. The results give basic indications about the most important aspects that must be taken into account for these modifications. A brief review of the results are presented in this paper.