Federstahldrähte und Verfahren für ihre Herstellung

A spring steel wire that has a tensile strength of at least 2,000 N/mm and a surface roughness of not more than 5 mu m in terms of Rz, and a spring steel wire that consists essentially of from 0.5 to 0.8% by weight of C, from 1.2 to 2.5% by weight of Si, from 0.4 to 0.8% by weight of Mn, from 0.7 to...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAO, NORIHITO, MURAI, TERUYUKI
Format:	Patent
Sprache:	ger
Schlagworte:	ALLOYS APPARATUS THEREFOR BLASTING CHEMISTRY CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS STEAM ENGINES TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	A spring steel wire that has a tensile strength of at least 2,000 N/mm and a surface roughness of not more than 5 mu m in terms of Rz, and a spring steel wire that consists essentially of from 0.5 to 0.8% by weight of C, from 1.2 to 2.5% by weight of Si, from 0.4 to 0.8% by weight of Mn, from 0.7 to 1.0% by weight of Cr, from 0.005 to 0.030% by weight of N and at least two elements selected from the group consisting of from 0.1 to 0.6% by weight of V, from 0.05 to 0.50% by weight of Mo and from 0.05 to 0.50% by weight of W, with the balance being Fe and incidental impurities containing not more than 0.005% by weight of Al and not more than 0.005% by weight of Ti, said wire having a surface roughness of not more than 5 mu m in terms of Rz, as well as production processes therefor.