23 is advantageously given a limited amplitude oscillating movement in the direction of the longitudinal axis of the dummy bar 8 by receptacle 19 the drive for this longitudinal movement is not shown apart from this oscillating movement receptacle 19 is stationary in relation to housing 22 dummy bar 8 performs rotary and longitudinal movement it can have any cross section form e g circle or square and transmits its rotation movement to sleeve 23 which receives ingot 10 in case of an ingot with a circular cross section a rotatable mounting of sleeve 23 is not required because such an ingot can also rotate within a stationary cylindrical sleeve 23 fig3 shows an advantageous embodiment for the production of ingots with a circular cross section in this case it suffices to use a sleeve 18 closed only in the impact area of spray jet 6 as a boundary surface for catching spray jet 6 and shaping ingot 10 the sleeve 18 has the shape of a partially hollow cylinder and is fixed relative to the rotary and longitudinal movement of dummy bar 8 once again it can be advantageous to permit sleeve 18 to describe a limited oscillating movement around its stationary midposition for example a longitudinal axial and or rotary movement relative to the axis of rotation of dummy bar 8 fig4 shows the essential components of a device according to the invention for the production of hollow ingots but without the removal device being shown spray device 1 through 5 corresponds to that in fig1 spray jet 6.