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A high-strength aluminum alloy conductor for automotive cables

A technology for aluminum alloy conductors and automotive cables, applied in metal/alloy conductors, cable/conductor manufacturing, conductors, etc., can solve the problems affecting the application of aluminum and aluminum alloys, low strength of aluminum and aluminum alloys, and poor impact resistance, etc. Achieve the effect of improving wire drawing performance and processing performance, improving tensile strength and electrical conductivity

Active Publication Date: 2021-10-01
深圳阿尔泰克轻合金技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most cars on the market currently use copper wires as conductors. From the perspective of development, it has become an inevitable direction to replace copper with new aluminum conductors. At present, the process of replacing copper wires with aluminum alloy wires has the following defects: The conductivity of aluminum is only 50%-60% of that of pure copper. Aluminum and aluminum alloys have low strength and poor impact resistance.
The conductivity of high-strength aluminum alloy is lower than 50% of that of pure copper, and the strength of high-conductivity aluminum is lower than 50% of that of pure copper, which seriously affects the application of aluminum and aluminum alloys. Therefore, a new solution is urgently needed The above technical issues

Method used

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  • A high-strength aluminum alloy conductor for automotive cables

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: a kind of high-strength aluminum alloy conductor for automobile cable, according to the mass percentage number, is made up of the following:

[0021] Si: .0.36%, Fe: 0.12%, Cu: <0.1%, Mg: 0.4%, B: 0.012%, Re: 0.022%, single impurity <0.03%, total impurity <0.1%, and the balance is aluminum;

[0022] The preparation method is as follows:

[0023] Step 1) using the composition to produce aluminum alloy wire rod;

[0024] Step 2) Use the obtained aluminum alloy wire rod for wire drawing to obtain an aluminum alloy monofilament with a diameter of 0.3 mm;

[0025] Step 3) heat-treating the obtained aluminum alloy monofilament to obtain the required properties of the above-mentioned aluminum alloy monofilament;

[0026] Step 4) Use monofilaments that meet the performance requirements to carry out multiple strands into a conductor, and the conductor cross section is 0.5mm 2_ 240mm 2 .

[0027] The main process in the step 1) is as follows: aluminum ingot - m...

Embodiment 2

[0030] Embodiment 2: A kind of high-strength aluminum alloy conductor for automobile cable, according to the mass percentage number, is made up of the following:

[0031] Si: 0.45%, Fe: 0.32%, Cu: <0.1%, Mg: 0.48%, B: 0.014%, Re: 0.024%, single impurity <0.03%, total impurity <0.1%, and the balance is aluminum.

[0032] The preparation method is as follows:

[0033] Step 1) using the composition to produce aluminum alloy wire rod;

[0034] Step 2) Use the obtained aluminum alloy wire rod for wire drawing to obtain an aluminum alloy monofilament with a diameter of 0.3 mm;

[0035] Step 3) heat-treating the obtained aluminum alloy monofilament to obtain the required properties of the above-mentioned aluminum alloy monofilament;

[0036] Step 4) Use monofilaments that meet the performance requirements to carry out multiple strands into a conductor, and the conductor cross section is 0.5mm 2_ 240mm2 .

[0037] The main process in the step 1) is as follows: aluminum ingot - mel...

Embodiment 3

[0040] Embodiment 3: A high-strength aluminum alloy conductor for automobile cables, which is composed of the following according to the mass percentage: Si: .00.60%, Fe: 0.5%, Cu: <0.1%, Mg: 0.6%, B: 0.02%, Re: 0.025%, single impurity < 0.03%, total impurity < 0.1%, and the balance is aluminum.

[0041] The preparation method is as follows:

[0042] Step 1) using the composition to produce aluminum alloy wire rod;

[0043] Step 2) Use the obtained aluminum alloy wire rod for wire drawing to obtain an aluminum alloy monofilament with a diameter of 0.3 mm;

[0044] Step 3) heat-treating the obtained aluminum alloy monofilament to obtain the required properties of the above-mentioned aluminum alloy monofilament;

[0045] Step 4) Use monofilaments that meet the performance requirements to carry out multiple strands into a conductor, and the conductor cross section is 0.5mm 2_ 240mm 2 .

[0046] The main process in the step 1) is as follows: aluminum ingot - melting - alloyin...

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Abstract

The invention relates to a high-strength aluminum alloy conductor for automobile cables, which is composed of the following according to mass percentage: Si: 0.35%-0.65%, Fe: 0.1%-0.5%, Cu: <0.1%, Mg: 0.4% ‑0.7%, B: 0.01%‑0.03%, Re: 0.02%‑0.03%, single impurity <0.03%, total impurity <0.1%, and the balance is aluminum. The technical proposal improves the tensile strength of the aluminum alloy cable conductor used in automobiles, and pure aluminum has good electrical conductivity but low strength. Aluminum alloy has high strength, but poor electrical conductivity. This invention takes both electrical conductivity and strength into consideration. This technical solution expands the application scope of aluminum alloy cables in automobiles, and can be applied to control lines, signal lines, high-voltage lines, etc.; this solution solves the possibility of substituting aluminum for copper and reduces the manufacturing cost of automotive cables.

Description

technical field [0001] The invention relates to an aluminum alloy conductor, in particular to a high-strength aluminum alloy conductor for automobile cables, and belongs to the technical field of conductors for automobile cables and manufacturing methods thereof. Background technique [0002] The rapid development of China's economy and the improvement of people's living standards have promoted the development of China's automobile industry. As the competition in the automobile industry becomes more and more fierce, lightweight, one of the development directions of automobiles, will be more and more valued by automobile manufacturers. Substituting aluminum for steel and aluminum for copper will become the inevitable development trend of automobile lightweight. Japan As early as the 1990s, aluminum was applied to automobile manufacturing, such as automobile structural parts, automobile cables, automobile hubs and other components. Most cars on the market currently use copper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08B21C37/04C22C21/02C22F1/05H01B1/02H01B13/02
CPCB21C37/04C22C21/02C22C21/08C22F1/05H01B1/023H01B13/02
Inventor 庆毅庄景巍张瑞敏颜奇辉蒋国志鲍军
Owner 深圳阿尔泰克轻合金技术有限公司