HIGH-TENSILE STEEL STRIP HAVING DIFFERENT MECHANICAL PROPERTIES IN WIDTH DIRECTION AND ITS MANUFACTURING METHOD

• Main Authors: KONO OSAMU, DOBASHI KOICHI, HOSHINO TAKEHIRO
• Format: Patent
• Language: English
• Published: 11.11.2004
• Edition: 7
• 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; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide a high-tensile steel strip having different mechanical properties, especially hole expansion property and stretching property, in the width direction of the steel strip after finish rolling, which are imparted by controlling the temperature of the steel plate in a de...