Steel core heat-resistant aluminum alloy stranded wire for overhead conductor and manufacturing method of steel core heat-resistant aluminum alloy stranded wire

• Main Authors: WANG CAIREN, ZHONG FANGHUA, LI ZHIDI, ZHAI YUANHUI, LI MINTING, LI XIAOLING, PAN YAOMING
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; CONDUCTORS; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INSULATORS; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a steel core heat-resistant aluminum alloy stranded wire for an overhead conductor and a manufacturing method of the steel core heat-resistant aluminum alloy stranded wire, and the steel core heat-resistant aluminum alloy stranded wire is sequentially provided with a central galvanized steel wire, a galvanized steel wire middle layer, a galvanized steel wire outer layer, a heat-resistant aluminum alloy wire inner layer, a heat-resistant aluminum alloy wire middle layer and a heat-resistant aluminum alloy wire outer layer from the center to the outside, each layer is composed of a plurality of wires and is spirally wound around the inner layer in the direction opposite to the winding direction of the inner layer. According to the steel core heat-resistant aluminum alloy stranded wire for the overhead conductor, the high-strength galvanized steel wire with the tensile strength larger than or equal to 1450 MPa is adopted as the core wire, the heat-resistant aluminum alloy wire with the al