Annealing method of rare earth-iron-aluminum alloy conductor material for cables

An iron-aluminum alloy and conductor material technology, applied in the field of wire and cable manufacturing, can solve the problems of no alloy annealing reports and patented technologies, and achieve the effects of improving crystal defects, improving crystal structure, and improving electrical properties

Inactive Publication Date: 2011-07-27
ANHUI JOY SENSE CABLE
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  • Abstract
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Problems solved by technology

However, since the rare earth iron-aluminum alloy conductor is a new type of mat

Method used

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  • Annealing method of rare earth-iron-aluminum alloy conductor material for cables

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Embodiment 1

[0015] The rare earth iron and aluminum alloys contain: 0.20~1.5wt% Fe, 0.005~5wt% rare earth elements, the total impurity content is ≤0.5wt%, and the rest is Al. Rare earth elements can be composed of any one or more of the 17 elements.

[0016] Aluminum alloy conductor core made by smelting, casting, hot rolling, cold drawing and stranding, the conductor core is annealed at 280~360℃×3~30h or at 361~420℃×2~20h , the annealing time is adjusted according to the amount of conductor cores loaded on the disk. When performing annealing treatment at 361~420℃×2~20h, the annealing furnace needs to be evacuated and filled with nitrogen for protection.

[0017] The annealing equipment used in the present invention is a well-type annealing furnace, a box-type annealing furnace, a trolley-type resistance furnace or a bell-type annealing furnace.

[0018] After annealing, the conductivity of the conductor core is ≥61%IACS, the elongation at break of the center line is ≥10%, and the tensi...

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Abstract

The invention discloses an annealing method of a rare earth-iron-aluminum alloy conductor material for cables, wherein the annealing is carried out under the conditions of 280-360DEG C and 3-30h or 361-420DEG C and 2-20h; and the rare earth iron-aluminum alloy material comprises the following components in percentage by weight: 0.20-1.5wt/% of Fe, 0.005-5wt/% of rare earth element, other elements less than 0.5wt/% and the balance of A1. After smelting, casting, hot rolling, cold drawing and twisting, an aluminum alloy conductor core is obtained; and after annealing treatment, the aluminum alloy conductor core has excellent electric property, extension property and flexibility and is suitable for wire and cable conductor cores.

Description

[0001] technical field [0002] The invention belongs to the field of wire and cable manufacturing, and in particular relates to an annealing method for a rare-earth iron-aluminum alloy conductor material used for cables. Background technique [0003] Copper conductor annealing needs to be carried out in a sealed device, otherwise copper is easy to oxidize under high temperature conditions, thus changing the electrical properties of copper, so the requirements for equipment are very high. With the sharp increase in the demand for wires and cables, the consumption of copper is increasing day by day. The existing reserves of copper resources are far from meeting the demand for copper, and most of them need to be imported. Therefore, it is urgent to find an alternative product. Rare-earth iron-aluminum alloys have good electrical conductivity and can replace copper conductors, but because their mechanical properties are not as good as copper, they need to be treated to improv...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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