METHOD FOR MANUFACTURING A COILED STEEL SHEET

The method for manufacturing steel sheet comprises the steps of: rough-rolling to form a sheet bar; finish-rolling the sheet bar to form a steel strip; applying primary cooling and secondary cooling to the finish-rolled steel strip; and coiling the secondary-cooled steel strip. The primary cooling i...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIGURO, YASUHIDE, INAZUMI, TORU, IMADA, SADANORI, INOUE, TADASHI, MOTOYASHIKI, YOICHI, ODAKE, TAKAYUKI, NAKATA, HIROSHI, KIKUCHI, HIROYASU
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The method for manufacturing steel sheet comprises the steps of: rough-rolling to form a sheet bar; finish-rolling the sheet bar to form a steel strip; applying primary cooling and secondary cooling to the finish-rolled steel strip; and coiling the secondary-cooled steel strip. The primary cooling is conducted at cooling speeds of 120 DEG C/sec or more down to the temperatures of from 500 to 800 DEG C. The secondary cooling is conducted at cooling speeds of less than 60 DEG C/sec.