Vacuum extrusion casting and infiltration integrated mold for rail transit brake pad and forming method of vacuum extrusion casting and infiltration integrated mold

The invention discloses a vacuum extrusion casting and infiltration integrated die for a rail transit brake pad and a forming method of the vacuum extrusion casting and infiltration integrated die, and belongs to the technical field of hot extrusion dies. Comprising a front mold core, a rear mold core and the like, a front mold frame bottom plate is connected above an upper mold frame, the upper mold frame is connected above a rear mold frame, the upper end of square iron is connected with the rear mold frame, the lower end of the square iron is connected with a rear mold frame bottom plate, the front mold core is connected to the bottom of the upper mold frame, and the rear mold core is connected to the top of the rear mold frame. A prefabricated body is placed in a prefabricated body cavity formed after the front mold core and the rear mold core are closed, an ejector pin is installed under the prefabricated body cavity, heating pipes are installed on the upper mold frame and the rear mold frame, and high-s