LOW-COST SMELTING METHOD FOR POLAR-USE STEEL USING ULTRA-HIGH PHOSPHORUS MOLTEN IRON

The present invention discloses An ultra-high phosphorus molten iron low-cost smelting method for polar steel, comprising successively: a converter smelting step: smelting, deoxidizing and tapping alloying raw materials including molten iron; a refining step: performing slag adjusting and refining o...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WANG, Yuexiang, HUO, Xiaoxin, SUN, Zhengxu, WANG, Zhongxue, ZHANG, Pei, WANG, Tengfei, HE, Kang, ZHANG, Qingpu, LI, Yan, MA, Heng
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention discloses An ultra-high phosphorus molten iron low-cost smelting method for polar steel, comprising successively: a converter smelting step: smelting, deoxidizing and tapping alloying raw materials including molten iron; a refining step: performing slag adjusting and refining on the molten steel obtained in the converter smelting step to obtain a refined molten steel; a degassing step: vacuum degassing the refined molten steel; a continuous casting step: performing continuous casting on the molten steel obtained after the RH degassing step to obtain a cast billet. The present invention distinguishes the smelting in the single and double slag areas according to the Si content in the molten iron, so as to greatly save the consumption of smelting raw materials, shorten the smelting cycle and speed up the production process.