Heating method for large-piece-weight titanium alloy disc round and square billet

The invention relates to the technical field of titanium alloy hot working forming, and discloses a heating method for a large-piece-weight titanium alloy disc round square billet, and the square billet is heated through a double-furnace heating system comprising a stepping type electric heating furnace and a stepping type gas heating furnace; the heating method comprises the following steps of slurry spraying, a preheating stage, a heating stage, a soaking stage and heating and discharging. And then the subsequent rolling process is carried out. According to the heating method for the large-piece-weight titanium alloy disc round and square billet, a double-furnace heating system of a stepping type electric heating furnace and a stepping type gas heating furnace is adopted, and continuous steel feeding heating and continuous steel discharging rolling can be achieved; and a stepping type electric heating furnace is used for carrying out partition heating homogenization treatment on the rolled square billet. Ac