This silicon carbide also increases the cast iron nucleation, and consequently the final quality of the cast-iron product, in addition to reducing process costs. This silicon carbide is therefore an excellent alternative source of silicon and carbon in iron casting production processes.
SiC is also used in steel foundries and steel mills for de-oxidation and pre-treatment. It can be used in BOF / LD converters as an energy source due to the exothermic reactions during treatment.
Some of the advantages of TOPSIC®:
The sizes of the silicon carbide grains are typically 0 x 10 mm, 1 x 10 mm. This material has a black colouration, and is used in induction furnaces and ladles. Its purity can vary from 70% to 90%, depending on the specific need of each foundry application. This material is used at the beginning of the assembly of the metal charge, preferably close to the steel scrap or in the metal stream. Lumps or briquettes are used in cupola furnaces.