Patent ID: 11878344
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 2:
3. The method of claim 1, wherein in step (S1), the smelting and the refining are performed through steps of:
feeding the scrap steel, the pig iron and the industral industrially pure iron to a furnace, and then feeding the ferromolybdenum, the ferrochromium, the ferrotungsten, the ferrovanadium, the ferromanganese and the ferrosilicon to the furnace; heating the furnace to 1550-1600° C. to obtain a first melt; transferring the first melt with a ladle;
feeding the ferroboron and the ferrotitanium to the furnace and then transferring the first melt in the ladle back to the furnace to obtain a second melt; transferring the second melt to the ladle; introducing 0.148-0.152 g of an aluminum filament to a bottom of the furnace for deoxidization; transferring the second melt back to the furnace; and performing argon blowing at the bottom of the furnace for 8-15 min for refining.