GRANULATION OF MOLTEN FERROCHROMIUM

The invention relates to a method of producing ferrochromium by the granulation of a melt comprising the steps of providing a ferrochromium melt comprising (wt. %): C: 1 - 9; Cr: 25 - 70 and Si: ¤ 2.0. The method includes the steps of feeding the melt to a distribution unit, subj ecting the melt to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LUNDSTRÖM, Per-Åke
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to a method of producing ferrochromium by the granulation of a melt comprising the steps of providing a ferrochromium melt comprising (wt. %): C: 1 - 9; Cr: 25 - 70 and Si: ¤ 2.0. The method includes the steps of feeding the melt to a distribution unit, subj ecting the melt to granulation by disintegrating the melt above and/or within cooling water held in a cooling tank, solidifying the disintegrated melt within the cooling water, thereby obtaining a granulated ferrochromium material with a mean size in the range of 12-50 mm wherein the amount of fines having a size of less than 4 mm is limited to 7 %.