PRODUCTION OF HIGH CARBON STEEL

PROBLEM TO BE SOLVED: To provide a producing method of high carbon steel excellent in fatigue resistance and breaking resistance of wire. SOLUTION: In the producing method of the high carbon steel, with which a ladle refining is executed by blowing inert gas into molten steel containing 0.70-0.95 wt...

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Bibliographische Detailangaben
Hauptverfasser:	KANZAKI YUICHI, YAMANA HISASHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a producing method of high carbon steel excellent in fatigue resistance and breaking resistance of wire. SOLUTION: In the producing method of the high carbon steel, with which a ladle refining is executed by blowing inert gas into molten steel containing 0.70-0.95 wt.% C and stirring, under condition of covering the molten steel surface with slag in =0.366 R 48g(ρm-ρs)σ/ρs2}0.581, wherein, : flow rate of the inert gas (watt/ton), R: radius of the ladle (cm), ρ: density of the molten steel (kg/m3), ρs: density of the slag (kg/m3) and σ: stress of interface (N/sec). Further, slag having the composition satisfying the following range is desirable CaO/SiO2: 0.6-1.2, Al2O3: 2-10 wt.%, CaF2: