PRODUCTION OF GRAIN ORIENTED SILICON STEEL SHEET

PURPOSE:To stably produce a grain oriented silicon steel sheet excellent in magnetic properties by specifying the plate thickness and temp. on the roughing outlet side at hot rolling, the temp. on the finish rolling inlet side, and the condition at the first pass, respectively. CONSTITUTION:At the t...

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Bibliographische Detailangaben
Hauptverfasser:	MINATO TAKEHIKO, NISHIIKE UJIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDUCTANCES MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSFORMERS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To stably produce a grain oriented silicon steel sheet excellent in magnetic properties by specifying the plate thickness and temp. on the roughing outlet side at hot rolling, the temp. on the finish rolling inlet side, and the condition at the first pass, respectively. CONSTITUTION:At the time of hot-rolling a grain oriented silicon steel, hot rolling is done under the conditions of =1200 deg.C temp. Further, temp. on the finish rolling inlet side is regulated to 1050-1200 deg.C, and further, roll-plate contact time at the first pass of finish rolling is controlled to >=5X10sec. Subsequently, cold rolling is done one or more times to final sheet thickness. Successively, decarburizing annealing is done, and, after a separation agent at annealing is applied, final annealing is preformed. It is preferable that the silicon steel as material contains 0.01-0.12% C, 2.0-4.5% Si, and 0.02-0.15% Mn.