INNER CASE FOR FINISH ANNEALING OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND FINISH ANNEALING METHOD

• Main Authors: FUKUDA HIROYUKI, SHIDARA EITARO, OKADA NORIHISA, NAKADA NAOKI, NARA MASAKATSU
• Format: Patent
• Language: English
• Published: 12.11.2012
• Subjects: CHEMISTRY; 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

PROBLEM TO BE SOLVED: To provide an inner case for finish annealing that improves inhomogeneous distribution of temperature at each position in a coil generated when performing finish annealing of a grain-oriented electrical steel sheet and effectively suppresses shape defects and iron loss deterior...