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A new aluminum alloy material and its preparation

An aluminum alloy material and aluminum alloy technology, applied in the field of alloy manufacturing, can solve problems such as low conductivity, inability to meet high strength, high plasticity and high conductivity, and inability to replace metal copper

Active Publication Date: 2022-03-04
苏州铭恒金属材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing 6-series aluminum alloy products, except for the 6010 aluminum alloy which has relatively good electrical conductivity (55% IACS), the rest of the aluminum alloys are not known for their excellent electrical conductivity. In the field of products, 6-series alloys still cannot replace the expensive and rare metal copper
However, for 6010 aluminum alloy, the content of alloy strengthening phase elements such as silicon and magnesium is low, resulting in a decrease in the hardness and other mechanical properties of this type of aluminum alloy.
In other 6-series aluminum alloy products, due to the high content of silicon and magnesium alloy strengthening phase elements, their conductivity is lower, all lower than 50% IACS, which cannot meet the sputtering targets of special industries such as semiconductor chips. Requirements for high strength, high plasticity and high electrical conductivity of aluminum alloy

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0143] The invention also provides a preparation method for the aluminum alloy material. The preparation method of the present invention comprises steps:

[0144] Raw material supply step: provide liquid aluminum raw material;

[0145] Mixing and refining step: mixing and refining the liquid aluminum raw material with a certain amount of magnesium, silicon, copper, manganese and titanium elements to obtain an aluminum alloy material, wherein,

[0146] The final content of the magnesium, silicon, copper, manganese and titanium elements is based on the total weight of the aluminum alloy material, satisfying:

[0147] Magnesium content W 镁 0.8-1.2wt%;

[0148] Silicon content W 硅 0.4-0.7wt%;

[0149] Copper content W 铜 0.10-0.30wt%;

[0150] Manganese content W 锰 Satisfy 0锰 ≤0.10wt%; and

[0151] Titanium content W 钛 Satisfy 0钛 ≤0.15wt%.

[0152] Preferably, the content of each element in the method satisfies:

[0153] Magnesium content W 镁 is 0.09-0.10 wt%; and / or ...

Embodiment 1

[0192] Example 1 The component distribution ratio experiment of different aluminum alloy material content

[0193] In this experiment, the parameters of magnesium, silicon, iron, copper, manganese, zinc, chromium, and titanium were fine-tuned by item, that is, the content of 1-2 elements was fixed each time, and the content of different batches was 10±2%. The aluminum alloy material was fine-tuned, and Table 1 shows examples of control 1 and 10 batches of aluminum alloy materials of the present invention containing different elements and different wt% contents in the experiment.

[0194] Table 1

[0195] element Mg Si Cu mn Ti Fe Cr Zn Control 1 1.2 0.6 0.4 0.15 0.15 0.7 0.35 0.25 sample 1 1.08 0.564 0.288 0.0744 0.0293 0.285 0.174 0.0172 sample 2 1.06 0.614 0.271 0.0767 0.0271 0.277 0.175 0.0182 sample 3 1.01 0.635 0.285 0.0761 0.0335 0.286 0.171 0.0181 Sample 4 1.05 0.641 0.283 0.0774 0.031...

Embodiment 2

[0196] Embodiment 2 conductivity test

[0197] The digital portable metal conductivity tester is adopted, and the device itself mainly applies the principle of eddy current detection. First turn on the power and the machine warms up. Then use high and low conductivity standard test blocks to calibrate and zero the instrument. If the instrument level indication is zero, the calibration is complete. Place the probe on the flat part of the test piece stably, adjust the reading knob to make the level indication of the instrument be zero, and place the probe again stably. If the level indication is zero, the conductivity reading displayed by the instrument is the exact value of the conductivity of the test piece. .

[0198] Table 2

[0199]

[0200]

[0201] Conclusion: It can be seen from Table 2 that, except for a small amount of elements in the aluminum alloy, other elements enter the aluminum lattice or form various compounds. Although the addition of each alloy elem...

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Abstract

The invention provides a new aluminum alloy material and its preparation. Specifically, the inventors found that without reducing the content of magnesium and silicon in the 6-series aluminum alloy, after adjusting various other elements such as copper, iron, chromium, etc., a 6-series aluminum alloy with hardness, ductility and conductivity was obtained. Department of aluminum alloy material.

Description

technical field [0001] The invention belongs to the field of alloy manufacturing, and specifically, the invention provides a new high-conductivity aluminum alloy product and a preparation method thereof. Background technique [0002] The 6-series aluminum alloy is an aluminum alloy with magnesium and silicon as the main alloying elements and Mg and Si phases as the strengthening phase. It belongs to the aluminum alloy that can be strengthened by heat treatment. The 6-series aluminum alloy has the advantages of medium strength, high corrosion resistance, no tendency to stress corrosion cracking, good welding performance, constant corrosion performance in the welding zone, good formability and process performance, etc., and is widely used in various fields. [0003] Among the existing 6-series aluminum alloy products, except for the 6010 aluminum alloy which has relatively good electrical conductivity (55% IACS), the rest of the aluminum alloys are not known for their excellen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08
Inventor 于昊川汪明东
Owner 苏州铭恒金属材料科技有限公司