low-grade non-oriented silicon steel hot rolling production method capable of controlling edge quality

The invention particularly relates to a low-grade non-oriented silicon steel hot rolling production method capable of controlling the edge quality, and belongs to the technical field of non-oriented silicon steel hot rolling production. The method comprises the following steps that primary rough rolling is carried out on a low-grade non-oriented silicon steel slab, secondary rough rolling is carried out on the slab subjected to the primary rough rolling, wherein a vertical roll lubricating device is arranged on a vertical roll in front of a secondary roughing mill, and the oil quantity of lubricating oil supplied to the vertical roll by the vertical roll lubricating device is 100 mL/min-400 mL/min; and fine descaling, fine rolling and coiling are carried out on the slab subjected to secondary rough rolling to obtain a hot-rolled coil with qualified edge quality. By means of the method, the good vertical roll surface state is guaranteed, the rough edge can be effectively solved, the rough edge state of the low