METHOD OF MELTING LOW-CARBON TITANIUM-CONTAINING STEEL

FIELD: ferrous metallurgy; making titanium-alloyed steels at low content of nitrogen. ^ SUBSTANCE: proposed method includes tapping of melt, introduction of deoxidizing agents, evacuation followed by introduction of titanium-containing ferroalloys in form of titanium-containing powder wire at the fo...

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Main Authors SENICHEV G.S, D'JACHENKO V.F, NIKOLAEV O.A, SARYCHEV A.F, STEPANOVA A.A, PAVLOV V.V, RASHNIKOV V.F, BODJAEV JU.A, IVIN JU.A
Format Patent
LanguageEnglish
Russian
Published 27.12.2004
Edition7
Subjects
CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Summary:FIELD: ferrous metallurgy; making titanium-alloyed steels at low content of nitrogen. ^ SUBSTANCE: proposed method includes tapping of melt, introduction of deoxidizing agents, evacuation followed by introduction of titanium-containing ferroalloys in form of titanium-containing powder wire at the following relationship: Qp.wTi=100Qst (0.022-1.652 (Mn)+61.559 (S)+1.091(N)+7.585 (Al)+3.063 [Ti]reqo/[Ti]p.w, where Qp.wTi is consumption of powder wire with ferro-titanium filler (by filler), kg; Qst is mass of molten steel, t; (Mn), (S), (N), (Al) is content of magnese, sulfur, nitrogen and aluminum in sample of metal before introduction of powder wire, [Ti]reqo is required content of titanium in steel, %; [Ti]p.w is content of titanium in power wire, %. ^ EFFECT: low cost of process; increased yield of finished product; enhanced resistance of steel-teeming ladles; reduced content of non-metallic inclusions. ^ 1 ex
Bibliography:Application Number: RU20030134064