Obtención simultánea de ferroaleación multicomponente y escoria a partir de arenas negras, para el desarrollo de consumibles de soldadura por arco eléctrico
- García-Sánchez, L. L.
- Perdomo, L.
- Quintana-Puchol, R.
- Cruz-Crespo, A.
- Cores-Sánchez, A.
- Gómez Rodríguez, L.
- Cerpa Naranjo, Arisbel
ISSN: 0034-8570
Ano de publicación: 2004
Volume: 40
Número: 4
Páxinas: 294-303
Tipo: Artigo
Outras publicacións en: Revista de metalurgia
Obxectivos de Desenvolvemento Sustentable
Resumo
In this paper, chemical and mineralogical characterizations of the black sands of the Mejias placer of Sagua de Tánamo (the most important beach littoral placer of the northwest of oriental Cuba) are exposed. Starting from these characterizations a calculation strategy is developed for the making of the metallurgical load that allows to obtain simultaneously, when processed by carbothermic reduction in an electrical arc furnace, a multicomponent ferroalloy and a useful slag for the making of electric arch welding consumables. The powder of the obtained slag is agglomerated with liquid glass. The resulting pellets, due to their behavior on the submerged arc welding (SAW) present technological and metallurgical properties that correspond with the requirements of an agglomerated flux matrix. The chemical composition of the multicomponent ferroalloy is constituted by metallic elements of high metallurgical and alloyed values (V, Cr, Mo, Ti, Nb). It is appropriate for the formulation of consumables for manual welding (SMAW) and SAW, as well.