OUTER MATERIAL FOR HOT ROLLING ROLL AND COMPOSITE ROLL FOR HOT ROLLING MADE BY CENTRIFUGAL CASTING AND HAVING EXCELLENT RESISTANCE TO ACCIDENT AND SHEET PASSABILITY

OUTER MATERIAL FOR HOT ROLLING ROLL AND COMPOSITE ROLL FOR HOT ROLLING MADE BY CENTRIFUGAL CASTING AND HAVING EXCELLENT RESISTANCE TO ACCIDENT AND SHEET PASSABILITY

PROBLEM TO BE SOLVED: To provide a composite roll for hot rolling which is manufactured by centrifugal casting, has excellent resistance to accident and sheet passability and is suitable for the final stand of hot finish rolling. SOLUTION: The external layer has a composition containing 1.2 to 2.2%...

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Bibliographische Detailangaben
Hauptverfasser: ICHINO KENJI, TOYOOKA TAKAAKI, HIRAOKA HISASHI, KOSEKI TOMOHITO, ITAYA MOTOAKI
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a composite roll for hot rolling which is manufactured by centrifugal casting, has excellent resistance to accident and sheet passability and is suitable for the final stand of hot finish rolling. SOLUTION: The external layer has a composition containing 1.2 to 2.2% C, 6 to 12% Cr, 3 to 6% Mo, 3 to 8% V, 0.5 to 3% Nb, 1.0 to 8.0% Co and 0.3 to 1.5% Ni and simultaneously satisfying 0.27