Titanium blank rough rolling method of ordinary hot rolling mill

The invention relates to a titanium blank rough rolling method of an ordinary hot rolling mill, which can effectively ensure the quality of rough rolled intermediate titanium blanks. In the method, titanium blanks with the thicknesses H of 100-200mm are rough rolled, and before rough rolling is performed, a rough rolling technology of the titanium blanks is firstly determined according to the thickness H of the titanium blank, the technology includes rough rolling passes N, and the rolling openness and rolling reduction of each pass, and in the rolling process, the rolling openness of the rolling mill of each pass keeps constant. The method can keep the quality of the intermediate titanium blanks stable, and makes the shape of the intermediate titanium blank similar to a rectangle, and the shapes of the head part and the tail part similar to a sled.