The function and application of casting powder

Since the beginning of the 60s 20th century, the first time using submerged nozzle and casting powder, casting powder technology has been highly developed. Different casting powder adapted to different slab section, steel and casting process was developed. The surface quality of the billet is greatly improved and the surface of the slab is gradually improved. The basic functions of mold powder are: to protect the mold meniscus molten steel from the secondary oxidation of air; has good spread performance and thermal insulation properties, to prevent the molten steel surface solidification or crust; can absorb the float to Meniscus non-metallic inclusions;   .........................

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