Industrial trials were carried out at the ArcelorMittal Isbergues
slab continuous caster with the HJN (Hollow Jet Nozzle)
previously developed at CRM at the pilot stage. This nozzle
allows the addition of fine metallic powders in molten steel
right before its solidification. These tests showed the possibility to
implement the nozzle in an industrial stainless steel slab caster.
It was observed a full melting of the injected elements (Fe and Fe-Ti),
a homogeneous distribution of titanium element in slabs and a drastic
improvement of the addition yield of titanium.