MECHANISM OF DECARBURIZATION REACTION OF STAINLESS-STEEL IN REDUCED PRESSURE AND THE EFFECT OF STIRRING CONDITION

The most suitable stirring condition has been investigated on the basi s of the mechanism of the decarburization in VOD. Results are summeriz ed as follows: (1) A decarburization model considering each reaction s ites as hot spot, free surface, internal, bubble and slag was construc ted. As a results, it became possible to quantify the contribution rat io of each reaction site in decaburization rate at each [C] region in VOD. (2) Decarburization rate became larger with increasing stirring e nergy. And it was larger at a single tuyer than bouble tuyers accordin g to the defference of the plume eye area.