Mª Jose R.M (MaJo)
La metalurgia es la ciencia que se ocupa del estudio de las propiedades, las aplicaciones y los procesos de extracción y elaboración de los metales. La siderurgia es la metalurgia del hierro, el acero y las fundiciones.
En líneas muy generales, el proceso siderúrgico transcurre de la siguiente manera:
Extracción del mineral de hierro, que suele ser oligisto o limonita, aunque también se extrae a partir de la magnetita, la siderita o la pirita.
Separación de la mena (el mineral que contiene el hierro) de la ganga (arena, cal y otros minerales)
Calcinación del mineral o reducción con carbón de coque, en un alto horno para obtener el arrabio, que es un producto formado por hierro que contiene entre el 2,5 y el 4,5% de carbono, además de silicio, manganeso, fósforo, azufre y otras impurezas.
Transformación del arrabio en hierro dulce, fundiciones o acero. Para obtener las fundiciones se deja solidificar el arrabio y después se vuelve a fundir en un horno de cubilote. Para obtener el acero, el arrabio líquido se mezcla con chatarra y mineral de hierro en un mezclador y se envía a diferentes hornos de afino, según el tipo de acero que se quiera conseguir
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perdon, pero no entendi bien la diferencia, tendras mas articulos relacionados con esto?
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Fecha: 04/11/2010 23:06.
esto no me gusta y no me sirbe para nada por que no dice la metalurgia
Fecha: 19/02/2011 13:42.
Fecha: 15/06/2011 20:31.
Fecha: 15/06/2011 20:33.
Autor: milagros cuevas
Fecha: 17/10/2011 22:43.