Compact type fine-grain high-strength plate strip steel production line flexible manufacturing method

• Main Authors: LI JUN, GU TINGQUAN, HOU XIAOGUANG
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a compact type fine-grain high-strength plate strip steel production line flexible manufacturing method. The method comprises an uncoiling pretreatment zone, a cleaning zone, adirect fire heating zone, a longitudinal-transverse magnetic compound induction heating zone, a rapid soaking zone, a rapid cooling zone, a tension straightening leveling zone and an aftertreatment coiling zone. In the direct fire heating zone, an operation plate strip is heated in the section from the initial temperature to the largest 600-700 DEG C. In the longitudinal-transverse magnetic compound induction heating zone, a longitudinal and transverse magnetic compound induction heating furnace composed of longitudinal magnetic flux induction heating and transverse magnetic flux induction heating forms a high-temperature rapid heating zone, wherein longitudinal magnetic heating is responsible for heating in the temperature section of 600-700 DEG C, and transverse magnetic heating is responsible for heating in th