Process for the production of grain-oriented magnetic sheet starting from thin slab

A process for producing grain oriented magnetic sheets by subjecting a steel slab 100 mm, containing 2.5-3.5% si, to the following operations: optional first heating, to a temperature T1 1250° C.; first rough hot-rolling at T2 between 900 and 1200° C., the reduction ratio (% Rid) being at least 80%...

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Bibliographische Detailangaben
Hauptverfasser:	ABBRUZZESE GIUSEPPE, CICALE′ STEFANO, FORTUNATI STEFANO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A process for producing grain oriented magnetic sheets by subjecting a steel slab 100 mm, containing 2.5-3.5% si, to the following operations: optional first heating, to a temperature T1 1250° C.; first rough hot-rolling at T2 between 900 and 1200° C., the reduction ratio (% Rid) being at least 80% in the absence of a subsequent heating or, in the presence of a subsequent heating to T3 1300° C., at least 60% determined by % Rid=80−(T3−T2)/5; second finishing hot-rolling at T4