ALLOY STEEL TIRE CORD AND ITS HEAT TREATMENT PROCESS

This invention reveals steel alloys which are particularly suitable for use in manufacturing reinforcing wires for rubber products, such as tires. The steel filaments made by this process have an outstanding combination of strength and ductility. Additionally, the steel alloys of this invention can...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, DONG K, SHEMENSKI, ROBERT M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS CABLES OTHER THAN ELECTRIC CHEMISTRY CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL FINISHING OF YARNS OR ROPES METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE ROPES ROPES OR CABLES IN GENERAL TEXTILES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WARPING OR BEAMING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	This invention reveals steel alloys which are particularly suitable for use in manufacturing reinforcing wires for rubber products, such as tires. The steel filaments made by this process have an outstanding combination of strength and ductility. Additionally, the steel alloys of this invention can be patented in a low cost process due to their having a very fast rate of isothermal transformation. This allows the steel in the steel wire being patented to transform from a face centered cubic microstructure to an essentially body centered cubic microstructure within a very short period. This invention more specifically discloses a steel alloy composition which is particularly suitable for use in manufacturing reinforcing wire for rubber products which consists essentially of (a) about 96.5 to about 99.05 weight percent iron, (b) about 0.6 to about 1 weight percent carbon, (c) about 0.1 to about 1 weight percent silicon, (d) about 0.1 to about 1.2 weight percent manganese, (e) about 0.1 to about 0.8 weight percent chromium, and (f) about 0.05 to about 0.5 weight percent cobalt.