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Alloy material for wires and cables and preparation method thereof

An alloy material, wire and cable technology, applied in conductive materials, conductive materials, metal/alloy conductors, etc., can solve the problems of poor bending performance, high copper price, easy cracking or breaking, etc., to improve mechanical strength, improve Adverse effects, effects that increase strength

Inactive Publication Date: 2017-10-20
HEFEI DAZHUO ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most cable conductors use copper wires. Due to the shortage of copper resources and high copper prices, copper conductors account for about 70% of the cost of copper cables. The cost of manufacturing copper cables is too high, but using pure aluminum, long-term operation or after current overload Larger creep occurs, resulting in too large contact resistance, which is easy to cause accidents, and the bending performance is not good, easy to crack or break, which is also easy to cause accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An alloy material used for wire and cable, weighing the following raw materials for use: Al 80kg, Si 2.5kg, Cu1.2kg, Fe 0.8kg, Mg 0.6kg, P 0.001kg, Ca 0.2kg, B 0.1kg, Ni 0.4 kg, Co 0.5kg, Mn 0.3kg, Ti 0.4kg, Ce 0.2kg and Nb 0.08kg.

[0032] The preparation method of the above-mentioned alloy material for wire and cable is carried out according to the following steps:

[0033] (1) Carry out the following four-stage smelting treatment to the simple substance of the raw material;

[0034] Stage 1: The raw material elemental Al is transported to the melting furnace, and the melting furnace is filled with nitrogen as a melting protective gas, and then the furnace temperature is raised to 660°C at a heating rate of 10°C / min, and kept for 20 minutes to obtain molten aluminum;

[0035] Stage 2: Add the raw material Si, Cu, Fe, Mg, P, Ca and B into the molten aluminum, raise the furnace temperature to 1520°C at a heating rate of 10°C / min, and keep it for 40min to obtain alloy m...

Embodiment 2

[0045] An alloy material used for wire and cable, the following simple raw materials are weighed for use: Al 100kg, Si 3.0kg, Cu1.4kg, Fe 1.0kg, Mg 0.8kg, P 0.003kg, Ca 0.4kg, B 0.3kg, Ni 0.6 kg, Co 0.7kg, Mn 0.5kg, Ti 0.6kg, Ce 0.4kg and Nb 0.10kg.

[0046] The preparation method of the above-mentioned alloy material for wire and cable is carried out according to the following steps:

[0047] (1) Carry out the following four-stage smelting treatment to the simple substance of the raw material;

[0048] Stage 1: The raw material elemental Al is transported to the melting furnace, and the melting furnace is filled with argon as a melting protective gas, and then the furnace temperature is raised to 670°C at a heating rate of 15°C / min, and kept for 25min to obtain molten aluminum ;

[0049] Stage 2: Add the raw materials Si, Cu, Fe, Mg, P, Ca and B into the molten aluminum, raise the furnace temperature to 1550°C at a heating rate of 15°C / min, and keep it for 50min to obtain all...

Embodiment 3

[0059] An alloy material used for wire and cable, the following simple raw materials are weighed for use: Al 120kg, Si 3.5kg, Cu1.6kg, Fe 1.2kg, Mg 1.0kg, P 0.005kg, Ca 0.6kg, B 0.5kg, Ni 0.8 kg, Co 0.9kg, Mn 0.7kg, Ti 0.8kg, Ce 0.6kg and Nb 0.12kg.

[0060] The preparation method of the above-mentioned alloy material for wire and cable is carried out according to the following steps:

[0061] (1) Carry out the following four-stage smelting treatment to the simple substance of the raw material;

[0062] Stage 1: The raw material elemental Al is transported to the melting furnace, and the melting furnace is filled with nitrogen as the melting protective gas, and then the furnace temperature is raised to 680°C at a heating rate of 20°C / min, and kept for 30min to obtain molten aluminum;

[0063] Stage 2: Add the raw materials Si, Cu, Fe, Mg, P, Ca and B into the molten aluminum, raise the furnace temperature to 1580°C at a heating rate of 20°C / min, and keep it for 60 minutes to ...

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Abstract

The invention discloses an alloy material for wire and cable and a preparation method thereof, and relates to the technical field of wire and cable conductors. The alloy material includes the following raw materials: Al, Si, Cu, Fe, Mg, P, Ca, B, Ni , Co, Mn, Ti, Ce and Nb; the preparation method carries out the following four-stage smelting treatment on the raw material; then the alloy melt is poured to obtain a cylindrical ingot; then the cylindrical ingot is subjected to homogenization annealing treatment; then The annealed cylindrical ingot is made into an alloy wire; then the alloy wire is transported to a heat treatment furnace for heat treatment; finally, the heat treated alloy wire is cooled with the furnace. This kind of alloy material has excellent properties, good corrosion resistance, mechanical properties and electrical conductivity, wide application range, long service life and broad market prospect.

Description

technical field [0001] The invention relates to the technical field of wire and cable conductors, in particular to an alloy material for wire and cable and a preparation method thereof. Background technique [0002] At present, most cable conductors use copper wires. Due to the shortage of copper resources and high copper prices, copper conductors account for about 70% of the cost of copper cables. The cost of manufacturing copper cables is too high, but using pure aluminum, long-term operation or after current overload Larger creep occurs, resulting in too large contact resistance, which is easy to cause accidents, and the bending performance is not good, easy to crack or break, which is also easy to cause accidents. [0003] The conductivity of the widely used aluminum alloy wire and cable is 61% IACS. If the conductivity of the aluminum alloy wire and cable can be increased from 61% IACS to 62% IACS and above, the loss of the line can be reduced by more than 1.5%. For my ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22F1/043H01B1/02
CPCC22C21/02C22C1/026C22F1/043H01B1/023
Inventor 杨自芬
Owner HEFEI DAZHUO ELECTRIC POWER CO LTD