COLD ROLLED STEEL SHEETS MANUFACTURED BY AN ELECTRIC ARC FURNACE AND THE METHOD THEREOF

A manufacture cold rolled steel sheet manufactured by an electric arc furnace and a manufacturing method thereof are provided as the electricity which improves the phosphate treatment property of the cold rolled steel sheet by improving the surface thickening property of the impurity element. A manu...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, JI HWAN, IM, YONG BIN, KIM, SUNG JU
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A manufacture cold rolled steel sheet manufactured by an electric arc furnace and a manufacturing method thereof are provided as the electricity which improves the phosphate treatment property of the cold rolled steel sheet by improving the surface thickening property of the impurity element. A manufacture cold rolled steel sheet manufactured by an electric arc furnace for make uniformly and densified the phosphate coating particle, difficult impurity element is like that put to remove to the electricity on the manufacturing process, and alloying element is added without the process of being additional among the steelmaking process. The phosphate treatment property of the cold rolled steel sheet is improved by improving the surface thickening property of the impurity element in the electricity the manufacture cold rolled steel sheet is 100% hydrogen atmosphere, it is heat-treated in the batch annealing.