example shown the collecting volume 6 serves simultaneously as the melting volume and the melting crucible 1 is encompassed by an induction coil not shown with the aid of this induction coil raw material placed into the collecting volume 6 is heated and melted and brought to the necessary casting temperature during the melting process the bottom outlet opening 2 is closed by means of the stopper 3 below the bottom outlet opening 2 is disposed in known manner a casting mold not shown with a pouring funnel the known casting machines in which such melting crucibles 1 are applied are for example vacuum casting machines for small parts the material volume of the casting object can therein be in the range of approximately 5 cm 3 to 2000 cm 3 since in particular the casting of precious metals involves expensive materials for each casting process precisely that quantity of raw material is placed into the collecting volume 6 of the melting crucible 1 which is necessary for a subsequent casting process as soon as the raw material in the collecting volume 6 is melted and brought to the correct casting temperature the stopper 3 is opened and the liquid material flows through the bottom outlet opening 2 into the casting mold it is herein essential that as high an outflow rate is attained as possible and that the liquid material fills completely the cross section of the cylindrical region 4 of the bottom outlet opening 2 therewith maximum volume throughputs.