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Fire resistant aluminum alloy and its manufacturing method

A technology of aluminum alloy and high temperature resistance, applied in the field of aluminum alloy, can solve the problems of large line loss, low conductivity, construction difficulty and low cost, and achieve the effect of increasing transmission capacity, high conductivity and low cost

Inactive Publication Date: 2008-05-07
回静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of high-temperature-resistant aluminum alloys to increase capacity is achieved by increasing the heat-resistant temperature of aluminum conductors. The construction difficulty and cost are low. However, the current heat-resistant temperature of aluminum alloys is 150°C and 58% IACS (conductivity), and there is a low conductivity. , Insufficient problem of large line loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] First, put 1,000 kg of aluminum ingots with a purity of 99.7% or more in a furnace at a temperature of 650-720°C and melt them. After heating up to 730-750°C, add 0.1 kg of zirconium, 0.5 kg of iron, 0.9 kg of silicon, manganese, and chromium into the holding furnace. 0.1 kg each of vanadium, titanium, heat preservation for 1-2 hours, and instant rolling and forming. The obtained high-temperature-resistant aluminum alloy material has an electrical conductivity of 60% IACS, a tensile strength of 175Kgf / mm, an elongation of 2.5%, and a heat resistance of 91%.

Embodiment 2

[0014] According to the method described in Example 1, 0.5 kg of zirconium, 1 kg of iron, 0.8 kg of silicon, and 0.2 kg of manganese, chromium, vanadium, and titanium were added after 1000 kg of aluminum was melted to obtain a high-temperature resistant aluminum alloy material.

Embodiment 3

[0016] According to the method described in Example 1, 0.5 kg of zirconium, 1.5 kg of iron, 0.2 kg of silicon, 0.2 kg of manganese and chromium, and 0.1 kg of vanadium and titanium were added after 1000 kg of aluminum was melted to obtain a high temperature resistant aluminum alloy material.

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Abstract

The invention relates to alloy material, in particular to high temperature resistant aluminum alloy using aluminum as base material. The invention is characterized in that zirconium, iron, silicon, manganese, chromium, vanadium and titanium are added in the aluminum alloy; the content proportion of the chemical elements: zirconium 0.01to 0.1%, iron 0.05 to 0.2 %, silicon 0.01 to 0.1%, and the total content of manganese, chromium, vanadium and titanium is 0.01 to 0.1 %. The invention has the advantages of reasonable formula of alloy, strong resistance to high temperature up to 150 DEG C due to the addition of aluminum zirconium alloy, high conductivity up to 60% IACS through control of impurity content and content adjustment of aluminum zirconium alloy and aluminum iron alloy, high temperature and high conductivity without aging treatment, and wide application range.

Description

Technical field: [0001] The present invention relates to alloy materials, especially aluminum alloys. Background technique: [0002] Aluminum alloys are widely used in industry and civil use. Various aluminum wires and aluminum bars are widely used in the electrical industry. Especially with the increasing power consumption in urban and rural areas, the problem of increasing the capacity of new and old lines is severe. At present, our country mainly solves the capacity increase problem by increasing the conductor cross-section. Due to the increase of the conductor cross-section, the existing lines must be rebuilt, the construction is difficult, and the laying cost is doubled. The use of high-temperature-resistant aluminum alloys to increase capacity is achieved by increasing the heat-resistant temperature of aluminum conductors. The construction difficulty and cost are low. However, the current heat-resistant temperature of aluminum alloys is 150°C and 58% IACS (conductivity...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/02B21D1/02C22F1/04
Inventor 回静
Owner 回静
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