Method for controlling shape of checkered plate above 700MPa based on CSP line

The invention discloses a method for controlling the shape of a checkered plate of 700 MPa or above based on a CSP line. The method comprises the steps that firstly, the furnace entering temperature is controlled, specifically, a low superheat degree and high pulling speed process is stably controll...

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Bibliographische Detailangaben
Hauptverfasser: LIANG WEN, CHEN FOWANG, ZHANG ZUNGAN, XIE GUANGHUI, JIA LUYING, LIANG YUANDONG, XIONG WEILIANG, LEE SANG-KUK, LIANG LIANG, XIAO LEI, YU QIANG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for controlling the shape of a checkered plate of 700 MPa or above based on a CSP line. The method comprises the steps that firstly, the furnace entering temperature is controlled, specifically, a low superheat degree and high pulling speed process is stably controlled, and it is guaranteed that the furnace entering temperature is controlled within 850-1000 DEG C; 2, plate blank cleaning is conducted, specifically, plate blank cleaning equipment before furnace entering is started, and it is guaranteed that the plate blank is efficiently heated and evenly heated after furnace entering; 3, the tapping temperature is controlled to range from 1150 DEG C to 1200 DEG C; step 4, carrying out reduction distribution, namely properly adjusting according to different rolling thicknesses, and reducing the reduction of F5 and F6 under the condition that the rolling torque of a middle traveling rack is allowed so as to reduce the plate shape control difficulty and the bean height control di