A nano-carbon alloy material and electric fittings prepared based on the material

A technology of alloy materials and electric power fittings, which is applied in the field of nanomaterials, can solve the problems of bulky and bulky appearance of fittings, inconvenient installation and transportation, etc., and achieve the effects of reducing transportation and installation costs, promoting technology upgrades, and improving tensile strength

Active Publication Date: 2019-07-30
STATE GRID CORP OF CHINA +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of fittings has a bulky appearance and is inconvenient to install and transport. It can no longer meet the needs of the modernization of the power grid. Therefore, it is necessary to develop a material for power fittings that is light, high in tensile strength, and good in elongation.

Method used

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  • A nano-carbon alloy material and electric fittings prepared based on the material
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  • A nano-carbon alloy material and electric fittings prepared based on the material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] To prepare a bowl head hanging board power fitting made of nano-carbon alloy material, the specific steps are as follows:

[0023] 1) Al-Si master alloy (Si accounts for 10.4%), Al-Cu master alloy (Cu accounts for 50%), Al-Fe master alloy (Fe accounts for 20%), Al-Cr master alloy (Cr accounts for Ratio 3%), pure Mg blocks, carbon nanotubes, aluminum ingots as raw materials, the raw materials are weighed according to the following element mass ratios: Si 0.5%, Mg 0.8%, carbon nanotubes 0.5%, Cu 0.15%, Fe 0.25%, Cr 0.15%, the balance is Al, control the trace elements Mn<0.1%, Zn<0.1%, Ti<0.1%, put the aluminum ingot in the medium frequency induction furnace, heat it to melt, add the master alloy and stir evenly, and then use a bell The hood presses the pure Mg block into the bottom of the molten aluminum to fully melt, then add carbon nanotubes, then mechanically stir for 30 minutes, and then cast with a crystallizer (the crystallizer table temperature is set at about 700...

Embodiment 2

[0028] To prepare a bowl head hanging plate electric fitting made of nano-carbon alloy material, the preparation method is similar to that of Example 1, except that the addition amount of carbon nanotubes is 1.0%.

[0029] Such as figure 2 Shown is the SEM photo of the fracture of the bowl head hanging plate prepared in this example. It can be seen from the figure that the fracture is almost covered with a large number of tiny dimples, and there are holes between the dimples, showing the characteristics of micropore aggregation type shear fracture , belonging to ductile fracture. Some carbon nanotubes are distributed on the edge of the dimples and in the middle of the dimples, and the carbon tubes have not been completely pulled out, indicating that the carbon nanotubes and the matrix are well bonded.

[0030] A performance test was carried out on the NWS type bowl-head hanging board prepared in this embodiment, and the test results are shown in Table 1.

Embodiment 3

[0032] A kind of electric fittings with bowl head hanging plate made of nano-carbon alloy material is prepared, the preparation method is similar to that of Example 1, except that the addition amount of carbon nanotubes is 1.5%.

[0033] A performance test was carried out on the NWS type bowl-head hanging board prepared in this embodiment, and the test results are shown in Table 1.

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Abstract

The invention relates to a nano-carbon alloy material and electric power fittings prepared based on the material. The composition and mass percentage of the nano-carbon alloy material are: 0.5-1.0% of Si, 0.2-0.8% of Mg, 0.5-2.5% of carbon nanotubes, Cu 0.15-0.4%, Fe 0.2-0.7%, Cr 0.1-0.3%, the balance is Al, control trace element content Mn<0.1%, Zn<0.1%, Ti<0.1%. The nano-carbon alloy material provided by the invention has great advantages in production technology, product performance, energy saving and environmental protection, etc., and can be widely used instead of traditional iron fittings, and has higher strength than conventional aluminum alloys, and can better meet the safety and stability of lines Demand, the use of nano-carbon alloys to prepare electric fittings can reduce the size and weight of fittings, reduce the manufacturing cost of electric fittings, and promote the technical upgrading of electric fittings products.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a nanocarbon alloy material and electric fittings prepared based on the material. Background technique [0002] Power fittings play an important role in connecting and combining various devices, transmission machinery, and electrical loads in the power system in power transmission and transformation projects. Traditional power fittings are generally made of aluminum or iron materials. Aluminum power fittings have low strength, and the size needs to be increased to meet the use requirements, resulting in higher manufacturing costs; although iron power fittings have the advantages of high strength and low cost, but Due to the high quality and low energy saving of iron power fittings, the application in power transmission and distribution lines has great limitations. At present, in power transmission and distribution lines, there are still a large number of power fittin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C26/00C22C1/03C22C1/10C22F1/04B23P15/00
CPCC22C1/026C22C1/03C22C1/1036C22C21/00C22C26/00C22F1/002C22F1/04B23P15/00C22C2026/002C22C1/1047
Inventor 蔡炜王利民何卫卢才璇夏兆辉韩怡秋姚建生詹耿汤超姚辉朱小强
Owner STATE GRID CORP OF CHINA
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