Production process for rolling flat plate by using wedge-shaped sheet billet on common hot rolling production line

The invention discloses a production process for rolling a flat plate by using a wedge-shaped sheet billet on a common hot rolling production line, which belongs to the field of steel manufacturing and comprises the steps of heating, rough rolling, finish rolling and coiling. A plate blank used in the heating process is a wedge-shaped thin plate blank, and the thick end of the plate blank faces the rolling line direction; controlling the furnace temperature and the in-furnace time; the rough rolling adopts three-pass mode rolling, the thickness of an intermediate billet is 32 mm, the furnace rear descaling temperature is controlled to be 1000-1050 DEG C, and the temperature drop of a rough rolling area is controlled to be smaller than or equal to 30 DEG C; compared with the prior art, the method has the characteristics of reducing cost and increasing efficiency. 本发明公开了一种普通热轧产线使用楔形薄板坯轧制平板的生产工艺，属于钢铁制造领域，工序包含加热→粗轧→精轧→卷取；所述的加热工序使用的板坯为楔形薄板坯，规格厚的一端朝向轧线方向；控制炉温和在炉时间；粗轧采用三道次模式轧制，中间坯厚度采用32mm，炉后除鳞温度控制在1000～1050℃，粗轧区域温降控