One-time forming efficient reducing copper pipe extrusion die

The utility model discloses a one-time forming efficient reducing copper pipe extrusion die, and relates to the field of non-ferrous metal auxiliary processing equipment. The die comprises a bottom die and a top die, a vertically-penetrating material channel is arranged along the axis of the bottom die, the material channel sequentially comprises a blank channel, a reducing channel and a discharging channel which are communicated from top to bottom, a groove is formed in the bottom end of the blank channel, the cross section area of the bottom end of the blank channel is smaller than that of the top end of the blank channel, and the diameter of the reducing channel is larger than that of the discharging channel. An extrusion core coaxial with the blank channel is arranged on the face, facing the bottom die, of the top die, the outer diameter of the extrusion core is the same as the inner diameter of the blank channel, and an aperture positioning rod is coaxially arranged on the bottom face of the extrusion co