HIGH-STRENGTH, HIGH-CONDUCTIVITY COPPER ALLOY AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To obtain an inexpensive high-strength, high-conductivity copper alloy in which mechanical strengths represented by tensile strength and hardness are improved to values higher than those in JIS Z 3234 type III standard without deteriorating physical properties and the additive...

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Hauptverfasser:	KURAMOTO SHIGERU, EGUCHI ITSUO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CABLES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CONDUCTORS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INSULATORS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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creator	KURAMOTO SHIGERU EGUCHI ITSUO
description	PROBLEM TO BE SOLVED: To obtain an inexpensive high-strength, high-conductivity copper alloy in which mechanical strengths represented by tensile strength and hardness are improved to values higher than those in JIS Z 3234 type III standard without deteriorating physical properties and the additive quantity of expensive Ni is reduced and which is free of Be and has ≥820 N/mm2tensile strength, ≥244 hardness by HB (10/3000) and ≥35% IACS electrical conductivity. SOLUTION: This copper alloy has a composition which consists of, by weight, 3.30 to 6.0% Ni, 0.8 to 1.7% Si, 0.5 to 1.5% Cr, 0.1 to 0.3% Sn and the balance Cu excluding inevitable impurities and in which the value of Ni/Si by weight ratio ranges from 3 to 4. The copper alloy has ≥820 N/mm2tensile strength, ≥244 hardness by HB (10/3000) and ≥35% IACS electrical conductivity. COPYRIGHT: (C)2008,JPO&INPIT
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SOLUTION: This copper alloy has a composition which consists of, by weight, 3.30 to 6.0% Ni, 0.8 to 1.7% Si, 0.5 to 1.5% Cr, 0.1 to 0.3% Sn and the balance Cu excluding inevitable impurities and in which the value of Ni/Si by weight ratio ranges from 3 to 4. The copper alloy has ≥820 N/mm2tensile strength, ≥244 hardness by HB (10/3000) and ≥35% IACS electrical conductivity. 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SOLUTION: This copper alloy has a composition which consists of, by weight, 3.30 to 6.0% Ni, 0.8 to 1.7% Si, 0.5 to 1.5% Cr, 0.1 to 0.3% Sn and the balance Cu excluding inevitable impurities and in which the value of Ni/Si by weight ratio ranges from 3 to 4. The copper alloy has ≥820 N/mm2tensile strength, ≥244 hardness by HB (10/3000) and ≥35% IACS electrical conductivity. 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subjects	ALLOYS BASIC ELECTRIC ELEMENTS CABLES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CONDUCTORS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INSULATORS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
title	HIGH-STRENGTH, HIGH-CONDUCTIVITY COPPER ALLOY AND ITS MANUFACTURING METHOD
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