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Environment-friendly aluminum alloy conductor and preparation method thereof as well as power cable

An aluminum alloy conductor, environmentally friendly technology, applied in the field of alloys, can solve the problems of limited distance, poor conductivity, corrosion, etc., and achieve the effects of good integrity, high elongation and fatigue resistance

Inactive Publication Date: 2016-01-20
陕西永光电力电缆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The toughness is not good, and the number of twists it can withstand is not enough. As long as it is twisted several times at a certain angle during installation, cracks will occur in the conductor, and the cracks will heat up, corrode, and cause a fire.
All of these determine that the existing aluminum alloy conductors have poor fatigue resistance, are prone to quality problems, affect the service life of aluminum alloy materials or bring safety hazards
[0010] 2. Poor conductivity. Due to the high resistivity, the allowable carrying capacity of aluminum alloy cables with the same cross-section is small, which increases the voltage of the cable. Under limited voltage conditions, the distance reached by the electric energy is limited, and the power supply coverage area is small, resulting in cable voltage loss. high
[0011] 3. The anti-oxidation performance is poor, and the surface is easily oxidized, which increases the contact resistance and generates heat, causing accidents
[0012] Therefore, the overall performance of aluminum alloy power cables is still poor. With the continuous development of power materials, the performance requirements for aluminum alloy materials are getting higher and higher. High temperature resistance, high conductivity, light weight, and tensile strength are urgently needed. High new aluminum alloy conductor material

Method used

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  • Environment-friendly aluminum alloy conductor and preparation method thereof as well as power cable
  • Environment-friendly aluminum alloy conductor and preparation method thereof as well as power cable
  • Environment-friendly aluminum alloy conductor and preparation method thereof as well as power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Table 1 Composition and content of aluminum alloy conductor material

[0044]

[0045] (1) Put 983.35g of aluminum ingots into the furnace according to the quality of the metal elements listed in the above table, heat and melt under the condition of nitrogen filling, and keep it at 700°C;

[0046] (2) According to the amount shown in the above table, add Fe, Co, Ni, Mg, Sr, Ge, Cu, Zr, Sn and other metals into the molten aluminum, stir for 0.5h to make it uniform, then stand still and place at 700 Keep warm at ℃ for 0.5h;

[0047] (3) Add 3g of refining agent to the alloy melt, stir evenly, and then let it stand for 30 minutes. The melt refining is operated in a sealed environment; , and after degassing and slag removal, enter the casting machine for casting to obtain aluminum alloy ingots;

[0048] (4) Heat the aluminum alloy ingot to 670°C for 5 hours for the first solid solution treatment, and the cooling medium used is water;

[0049] (5) Heat the aluminum all...

Embodiment 2

[0054] Table 2 Composition and content of aluminum alloy conductor materials

[0055]

[0056] (1) Put 975.4g of aluminum ingots into the furnace according to the quality of the metal elements listed in the above table, heat and melt under the condition of nitrogen filling, and keep it at 700°C;

[0057] (2) According to the amount shown in the above table, add Fe, Co, Ni, Mg, Sr, montmorillonite, Ge, Cu, Zr, Sn and other metals into the molten aluminum, stir for 0.5h to make it uniform, and then Stand still and keep warm at 700°C for 1h;

[0058] (3) Add 3g of refining agent to the alloy melt, stir evenly, and then let it stand for 30 minutes. The melt refining is operated in a sealed environment; , and after degassing and slag removal, enter the casting machine for casting to obtain aluminum alloy ingots;

[0059] (4) Heat the aluminum alloy ingot to 670°C for a holding time of 10 hours for the first solid solution treatment, and the cooling medium used is clear water; ...

Embodiment 3

[0065] Table 3 Composition and content of aluminum alloy conductor materials

[0066]

[0067] (1) Put 973.8g of aluminum ingots and 3g of Sn into the furnace according to the quality of the metal elements listed in the above table, heat and melt under the condition of nitrogen filling, and keep the temperature at 700°C;

[0068] (2) According to the amount shown in the above table, add Fe, Co, Ni, Mg, Sr, montmorillonite, Ge, Cu, Zr and other metals into the molten aluminum, stir for 0.5h to make it uniform, then stand still and Incubate at 700°C for 1 hour;

[0069] (3) Add 3g of refining agent to the alloy melt, stir evenly, and then let it stand for 30 minutes. The melt refining is operated in a sealed environment; , and after degassing and slag removal, enter the casting machine for casting to obtain aluminum alloy ingots;

[0070] (4) Heat the aluminum alloy ingot to 770°C for a holding time of 10 hours for the first solid solution treatment, and the cooling medium ...

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Abstract

The invention discloses an environment-friendly aluminum alloy conductor and a preparation method thereof as well as a power cable. The environment-friendly aluminum alloy conductor comprises the following raw materials in percentage by weight: 0.01-0.6% of Fe, 0.4-1.2% of Co, 0.2-1.0% of Ni, 0.01-0.3% of Mg, 0.01-0.3% of Sr, 0.01-0.05% of Ge, 0.005-0.28% of Cu, 0.01-0.5% of Zr, 0.01-0.3% of Sn, 0.03-0.15% of montmorillonite and the balance of aluminum. The preparation method of the environment-friendly aluminum alloy conductor comprises the following steps: casting an aluminum alloy ingot, carrying out solid solution treatment for a first time, carrying out homogenization treatment, conventionally cold rolling, carrying out solid solution treatment for a second time and carrying out aging treatment on an aluminum alloy rod to obtain the aluminum alloy conductor. The invention also discloses an environment-friendly aluminum alloy cable. The environment-friendly aluminum alloy cable comprises a cable core, an insulation layer, a shielding layer and a protection layer, wherein the cable core is the aluminum alloy conductor.

Description

technical field [0001] The invention relates to the field of alloy technology, in particular to an environment-friendly aluminum alloy conductor, a preparation method thereof and a power cable containing the aluminum alloy conductor. Background technique [0002] For a long time, people's choice of low-voltage cables for construction is usually based on copper. It is believed that copper conductors are superior to other conductors in electrical performance and reliability, and are the best choice for cable materials. Copper core cables have the characteristics of low resistivity, high strength, and large carrying capacity. With the development of urbanization in China, the urban distribution network is the infrastructure of urban construction, the demand for power cables is increasing, and the application of copper core cables is increasing rapidly. The use of copper materials in my country has accounted for 90% of the cable industry. More than %, the proportion of power cab...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22F1/04H01B1/02
Inventor 路建卫
Owner 陕西永光电力电缆制造有限公司