SHAPE STEEL FOR GUIDANCE RAIL HAVING EXCELLENT ELECTRICAL CONDUCTIVITY AND ITS MANUFACTURE

PURPOSE:To obtain the electrical conductive guidance rail excellent in strength and toughness and having low electric resistance by subjecting a steel contg. C, Si, Mn, P, S, Ti and Al as base components as well as specified V and Nb to rolling at a prescribed temp. CONSTITUTION:A steel constituted...

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Bibliographic Details
Main Authors OCHIAI YUKIO, SAITO TOSHIMITSU, YAJIMA KAZUO, OMORI HIDEAKI
Format Patent
LanguageEnglish
Published 08.04.1991
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CABLES
CHEMISTRY
CONDUCTORS
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
FIXED CONSTRUCTIONS
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INSULATORS
MACHINES FOR MAKING RAILWAYS OF ALL KINDS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
PERMANENT WAY
PERMANENT-WAY TOOLS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PURPOSE:To obtain the electrical conductive guidance rail excellent in strength and toughness and having low electric resistance by subjecting a steel contg. C, Si, Mn, P, S, Ti and Al as base components as well as specified V and Nb to rolling at a prescribed temp. CONSTITUTION:A steel constituted of, by weight, 0.15 to 0.25% C, <=0.1% Si, 0.3 to 0.5% Mn, <=0.025% P, <=0.01% S, 0.005 to 0.015% Ti, 0.008 to 0.05% Al, total <=0.1% of 0.01 to 0.1% V and/or 0.01 to 0.05% Nb and the balance Fe is refined. The steel is rolled at 1150 to 1250 deg.C heating temp. and 800 to 850 deg.C finishing temp. Thus, the guidance rail excellent in strength and toughness and having good electrical conductivity can be obtd.
Bibliography:Application Number: JP19890220945