尚德礼, 张洪哲, 吕春风. Non-Metallic Inclusion in Grade A Hull Plate Steel Produced by 30 t Converter-Ladle Argon Stirring -Concasting Flowsheet[J]. Special Steel, 2007, 28(6): 51-53.
尚德礼, 张洪哲, 吕春风. Non-Metallic Inclusion in Grade A Hull Plate Steel Produced by 30 t Converter-Ladle Argon Stirring -Concasting Flowsheet[J]. Special Steel, 2007, 28(6): 51-53.DOI:
amount and distrbution of non-metallic inclusion in grade A hull plate steel (0. 16C
0.21Si
0.50Mn
0.011P
0.027S)produced by 30 t LD converter -ladle argon stiring- 150 mm×1050 mm slab concasting flowsheet have been analyzed and studied by electrolytic extraction analysis and scanning electron micro scope(SEM).Results showed that the inclusion in grade A hull plate stcel included silicate
alumina-silicate
sulphide and alumina-silicate-sulphide compound inclusion. The secondary oxidation of liquid steel and inclusion in steel from refractory materials counteract the metallurgical effect of argon blowing to remove inclusion in steel therefore to strengthen the ability of tundish removing inclusions could decrease large size inclusions in steel.