PRODUCTION OF COLD ROLLED STEEL PLATE FOR DEEP DRAWING

PURPOSE:To improve deep drawing moldability by subjecting the steel in which C, Si, Mn, P, SolTi, B and Nb are specified to hot rolling, cooling, cold rolling, etc., under the prescribed conditions. CONSTITUTION:The steel contg., by weight, 0.0025-0.01% C, <=1% Si, <=0.35% Mn, <=0.15% P and...

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Bibliographic Details
Main Author TSUKATANI ICHIRO
Format Patent
LanguageEnglish
Published 07.02.1989
Subjects
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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Summary:PURPOSE:To improve deep drawing moldability by subjecting the steel in which C, Si, Mn, P, SolTi, B and Nb are specified to hot rolling, cooling, cold rolling, etc., under the prescribed conditions. CONSTITUTION:The steel contg., by weight, 0.0025-0.01% C, <=1% Si, <=0.35% Mn, <=0.15% P and furthermore contg. one or more kinds among 0.02-0.15% SolTi, 0.001-0.005% B and 0.01-0.08% Nb is refined. Said steel is hot rolled at the temp. of >=Ar3. Said hot rolled steel plate is then cooled to <=200 deg.C at 20-150 deg.C/sec cooling ratio. The steel is successively applied to pickling, etc., is cold rolled at >=50% draft ratio and is subjected to continuous annealing.
Bibliography:Application Number: JP19870191316