Method and device for producing high-thickness-precision medium-thickness plate through CVC steckel mill

• Main Authors: LI YONGLIANG, WANG JIE, LIU PENG, QIAO SONG, QI TIANSHENG, ZHAO XIANPENG
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention discloses a method and device for producing a high-thickness-precision medium-thickness plate through a CVC steekle mill, and relates to the technical field of steel rolling. The device comprises a heating furnace, a descaling machine, a front coiling furnace, a rolling mill, a rear coiling furnace, a laminar cooling system and a hot straightening machine which are sequentially arranged. The method comprises the following steps of: 1, heating a blank in a heating furnace, and roughly descaling by a descaling machine; 2, the blank enters a rolling mill, after multiple passes of flat rolling, multiple passes of rolling are conducted, in the rolling process, linkage rolling of the rolling mill and a coiling furnace is needed, and the rolling tension reaches a set value; controlling the temperature of the coiling furnace to a set value in the coiling process; in the rolling process, starting 30-70% of the original flow of cooling water of a working roll of the rolling mill; and thirdly, after rollin