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Al-Fe-Mg-Ni aluminum alloy for automobile wire and wire harness thereof

A technology for automobile wiring harness and aluminum alloy, applied in the field of aluminum alloy, can solve problems such as shedding, and achieve the effect of overcoming the problem of processing performance and realizing light weight.

Pending Publication Date: 2014-04-30
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the wires of the electric wiring body of the mobile body are riveted to the terminals, and if creep occurs, there is a risk of falling off

Method used

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  • Al-Fe-Mg-Ni aluminum alloy for automobile wire and wire harness thereof
  • Al-Fe-Mg-Ni aluminum alloy for automobile wire and wire harness thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] An aluminum alloy for automotive wires, the components and weight percentages of each component are as follows (total weight: 1T):

[0040] components

Fe

Mg

Ni

Si

RE

Al

Weight (Kg)

2

0.1

0.01

/

/

997.89

Weight percentage (%)

0.2

0.01

0.001

/

/

99.789

[0041] In the above-mentioned aluminum alloy materials, it is preferable to add a certain amount of Ni, and the addition of Ni can form AlNi in the alloy. 3 and other metal compounds, which are distributed in the grain boundary of the matrix in the form of a dispersed phase, have multiple functions of refining grains, filling the grain boundaries of the matrix, and forming metal compounds near aluminum potential, which obviously weakens the surface tension of the melt and reduces the viscosity of the melt. Significantly improves the melt fluidity and the mechanical properties of the alloy.

[0042] The method for prepari...

Embodiment 2

[0048] An aluminum alloy for automotive wires, the components and weight percentages of each component are as follows (total weight: 1T):

[0049]

[0050] Among the above-mentioned aluminum alloy materials, the content of Si was compared. An appropriate amount of Si can increase the recrystallization temperature and refine the grains, while exceeding a certain content will reduce its electrical conductivity. In the process of implementation, it was found that the Si content Excessive samples are prone to breakage during the wire drawing process.

[0051] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:

[0052] a. Melting and casting: add aluminum alloy components according to the above ratio, melt at 730°C, cast ingots at 670°C, and then roll into alloy rods after solution treatment and aging treatment. The aging treatment here is preferably at 140°C or at higher temperatures;

...

Embodiment 3

[0057] An aluminum alloy for automotive wires, the components and weight percentages of each component are as follows (total weight: 1T):

[0058]

[0059] In the above-mentioned aluminum alloy materials, it is preferable to add a certain amount of RE elements, wherein Ce and La account for more than 52% of the total RE content, and rare earths can significantly improve the electrical properties of the alloy. In the present invention, rare earths are added to the aluminum alloy to make the aluminum alloy melt and cast When increasing the supercooling of the composition, the crystal grains are refined, the secondary grain distance is reduced, the gas and inclusions in the alloy are reduced, and the inclusion phase tends to be spheroidized. It can also reduce the surface tension of the melt, increase the fluidity, and is conducive to casting into ingots. It has a significant impact on the process performance, and can also improve the fatigue resistance of the alloy and prolong...

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Abstract

The invention discloses an Al-Fe-Mg-Ni aluminum alloy for an automobile wire, a preparation method thereof and an automobile wire harness prepared by using the Al-Fe-Mg-Ni aluminum alloy. The Al-Fe-Mg-Ni aluminum alloy for the automobile wire comprises the following components: 0.2-1.4wt% of Fe, 0.01-0.5wt% of Mg, 0.001-0.2wt% of Ni and the balance of Al and inevitable impurities. According to the Al-Fe-Mg-Ni aluminum alloy disclosed by the invention, by adding Fe, the mechanical strength and tensile properties of the alloy can be improved, and Fe can also obviously improve the high-temperature creep resistance and improve the anti-fatigue performance of the alloy; by adding Mg, the strength and high-temperature creep property of the alloy can be improved, and the anti-fatigue performance can be improved; Ni has multiple effects of refining grains, filling a grain boundary of a matrix and forming a near-aluminum electric potential metal compound, and can obviously weaken the surface tension of a melt, reduce the viscosity of the melt and significantly improve the flowability of the melt and the mechanical properties of the alloy.

Description

technical field [0001] The invention relates to a wire harness that can be used as a storage battery cable in a mobile carrier, a wire harness or a cable for an engine, and belongs to the field of aluminum alloys. Background technique [0002] At present, the automobile industry is developing rapidly in the world. The automobile industry has not only become the pillar industry of developed countries such as the United States and Japan, but also some developing countries including China. As one of the important supporting products of automobiles, the automobile line, no matter It has a good market prospect in terms of scale output and variety demand. [0003] At the same time, automobiles are developing in the direction of miniaturization and light weight, the control circuits of various electronic devices are increasing, and the wiring positions in motor vehicles are increasing. Therefore, in order to reduce weight, attempts have been made to use aluminum electric wires who...

Claims

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Application Information

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IPC IPC(8): C22C21/00H01B1/02
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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