Nicolae PĂCURAR


22-49 ANALIZA CONȚINUTULUI DE FIER DIN SCOARȚA DE PE HALDA DE LA FIRMELE A ȘI B

In order to estimate proper metallic charge for electrical arc furnace it
was necessary to evaluate iron content in skull delivered from slag dump by
two processors (A and B)
First off all it was necessary to know if the skull from both areas has
the same content or different. Second we had to know histogram for minimum
and maxim values.
As it was taken the decision to include in metallic charge 14 % of skull
(increasing total charge with 2,8 %) with evident economical positive result –
price of scrap is 5 times higher than skull.
Cuvinte cheie: scoarța, compoziție chimică, analiza statistică,
tehnologie de elaborare a oțelului
Keywords: bark, chemical composition, statistical analysis, the steel
technology

49 ANALIZA CONȚINUTULUI DE FIER DIN SCOARȚA