INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Diseño, construcción y puesta a punto de una batea para temple en aceite
Autor/es:
LAINO, S.; TURKALJ, T.; FORMICA, E.; DOMMARCO, R. C.
Lugar:
Valparaiso
Reunión:
Congreso; CONAMET / SAM 2012. 12 Congreso binacional de metalurgia y materiales; 2012
Institución organizadora:
SOCHIM / SAM
Resumen:
The present study was carried out as the graduation work corresponding to a Mechanical Engineering degree,consisting in the design, construction and tune up of a quenching tank. The system has an oil volume in accord to the typical part size heat treated in the laboratory, and is provided by heating coils with temperature control, agitation propeller with variable speed, and a platform to drain and preserve the oil in excess. The tune up of the system was carried out under different operative conditions, determining the quenching severity, H, for different oil temperatures and agitation speeds. The methods of Rushman-Lamont and Grossmann were used to calculate H. The hardness profiles on cylindrical samples were measured after different cooling conditions, and were then compared to those obtained for sample quenched in oil with defferent leves of agitation. The study was completed with a carefull microstructural characterization. The hardness profiles and the H values calculated from those values, agree with the observed micro-structures, from the martensitic ones for the higher colling rates to the perlitic ones. The quenching severity for this tank was in the range of 0.2-0.9, depending on the agitation intensity.H, for different oil temperatures and agitation speeds. The methods of Rushman-Lamont and Grossmann were used to calculate H. The hardness profiles on cylindrical samples were measured after different cooling conditions, and were then compared to those obtained for sample quenched in oil with defferent leves of agitation. The study was completed with a carefull microstructural characterization. The hardness profiles and the H values calculated from those values, agree with the observed micro-structures, from the martensitic ones for the higher colling rates to the perlitic ones. The quenching severity for this tank was in the range of 0.2-0.9, depending on the agitation intensity.H. The hardness profiles on cylindrical samples were measured after different cooling conditions, and were then compared to those obtained for sample quenched in oil with defferent leves of agitation. The study was completed with a carefull microstructural characterization. The hardness profiles and the H values calculated from those values, agree with the observed micro-structures, from the martensitic ones for the higher colling rates to the perlitic ones. The quenching severity for this tank was in the range of 0.2-0.9, depending on the agitation intensity.