A device for producing a wire made of amorphous metal alloy having an iron base, this device comprising a crucible containing an amorphizable alloy in the liquid state having an iron base, a die arranged at one end of the crucible, means enabling a pressure to be applied to make the liquid alloy flow through the die orifice, in the form of a jet, toward a cooling liquid, a drum, and means enabling the drum to be rotated about an axis so as to urge the cooling liquid in the form of a layer against the inner wall of the drum, thereby forming the amorphous wire by rapid solidification of the jet, the device comprising:
- a) a crucible and a die produced using different materials and joined by a joint the material of which differs from those of the crucible and of the die;
- b) means which are the same for heating the alloy both in the crucible and in the die;
- and
- c) means for delivering an inert or reducing gas directly in contact with the jet as it leaves the die.