Production method for improving rolling efficiency of ferrite area

The invention provides a production method for improving the rolling efficiency of a ferrite area, and relates to the technical field of hot rolling processes, the production method comprises the following steps: rolling by adopting low-temperature heating, controlling the tapping temperature to be...

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Bibliographische Detailangaben
Hauptverfasser: LI RUI, GAO WENGANG, CHENG YANG, ZHOU ZHENG, LIU JINGQUN, YANG XIAOHE, LI JIANWEI, AI JIAOJIAN, LI XIAOLIN, ZHOU XUN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a production method for improving the rolling efficiency of a ferrite area, and relates to the technical field of hot rolling processes, the production method comprises the following steps: rolling by adopting low-temperature heating, controlling the tapping temperature to be 950-1050 DEG C, and controlling the in-furnace time to be more than 120 minutes; a 3 + 3 rolling mode is adopted for rough rolling, three passes of an R1 rough rolling mill are adopted, and three passes of an R2 rough rolling mill are adopted; all-pass descaling is adopted by the roughing mills R1 and R2; a first intermediate billet cooling device is arranged at an inlet of the R1 rolling mill; a second intermediate billet cooling device is arranged at an outlet of the R1 rolling mill; a third intermediate billet cooling device is arranged at an inlet of the R2 rolling mill; and a fourth intermediate billet cooling device is arranged at an outlet of the R2 rolling mill. According to the production method for improv