Method for controlling hot-rolled scale of high-surface steel for engineering machinery with tensile strength of 960MPa

The invention discloses a control method for hot-rolled scale of high-surface steel for engineering machinery with tensile strength of 960MPa, and belongs to the technical field of metallurgy. The method comprises the following steps: S1, proportioning the components; s2, smelting, casting into a steel billet, keeping the steel billet in a furnace for 180-240 minutes, heating to 1200-1300 DEG C, and discharging out of the furnace; s3, rough rolling is conducted, an intermediate billet is obtained, and the initial rolling temperature of rough rolling is 1150-1230 DEG C; s4, finish rolling is conducted, specifically, a finish-rolled plate strip is obtained, the initial rolling temperature of finish rolling is 1000-1060 DEG C, and the final rolling temperature is 850-930 DEG C; and S5, carrying out ultra-fast cooling, carrying out laminar cooling to 450-650 DEG C, then carrying out coiling, and carrying out ventilation cooling on a steel coil to room temperature to obtain the high-surface 960MPa-grade steel for