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High-strength aluminum alloy for electronic material and preparation method of high-strength aluminum alloy

An electronic material and high-strength technology, applied in the field of aluminum alloy metallurgy, can solve problems such as low strength, and achieve the effect of meeting strength requirements, excellent strength performance, and reasonable deployment

Pending Publication Date: 2022-07-22
SHANDONG YUHANG SPECIAL ALLOY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of low strength of aluminum alloy electronic materials in the prior art, the present invention provides a high-strength aluminum alloy for electronic materials and a preparation method thereof, and the obtained aluminum alloy product has excellent strength performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Chemical composition design: Si0.05%, Fe0.08%, Cu0.24%, Mn0.17%, Mg2.08%, Cr0.001%, Zn6.14%, Ti0.01%, Zr0.01 %; the above chemical components are heated and melted in a converter, the melting temperature is 740°C, and the slag removal time is controlled at 10min; the refining adopts W and Z-type double-tube refining, the bubble height is less than 80mm, the refining temperature is 740°C, the refining time is 15 minutes, and the refining is 2 The casting temperature is controlled at 708℃, and the hydrogen content is controlled as follows: the corresponding control hydrogen content is less than 0.15ml per 100g Al; after casting, the homogenization treatment is performed. The time is 16h, and natural cooling is adopted;

[0020] (2) After homogenization, the product is extruded. The extrusion process is as follows: the heating temperature is 540°C, the extrusion barrel temperature is 440°C, the die temperature is 430°C, the holding time is 4h, the low temperature furna...

Embodiment 2

[0022] (1) Chemical composition design: Si 0.03%, Fe 0.09%, Cu 0.19%, Mn 0.19%, Mg 2.05%, Cr 0.003%, Zn 6.10%, Ti 0.01%, Zr 0.01%; Heating and melting, the melting temperature is 745°C, and the slag removal time is controlled at 10min; the refining adopts W and Z type double-tube refining, the bubble height is less than 80mm, the refining temperature is 745°C, the time is 15 minutes, and the refining is performed twice; the casting temperature is controlled at 712°C , the hydrogen content is controlled as follows: the corresponding control hydrogen content per 100g Al is less than 0.15ml; after casting, the homogenization treatment, the homogenization treatment process is, the homogenization temperature is 470 ℃, the heating time is 5h, the holding time is 16h, and natural cooling is adopted;

[0023] (2) After homogenization, the product is extruded. The extrusion process is as follows: the heating temperature is 560°C, the extrusion barrel temperature is 440°C, the die temper...

Embodiment 3

[0025] (1) Chemical composition design: Si 0.05%, Fe 0.08%, Cu 0.23%, Mn 0.17%, Mg 2.12%, Cr 0.001%, Zn 6.13%, Ti 0.01%, Zr 0.01%; Heating and melting, the melting temperature is 750°C, and the slag removal time is controlled at 10min; the refining adopts W and Z-type double-tube refining, the bubble height is less than 80mm, the refining temperature is 750°C, the time is 15 minutes, and the refining is performed twice; the casting temperature is controlled at 717°C , the hydrogen content is controlled as follows: the corresponding control hydrogen content per 100g Al is less than 0.15ml; after casting, the homogenization treatment, the homogenization treatment process is, the homogenization temperature is 475 ℃, the heating time is 5h, the holding time is 16h, and natural cooling is adopted;

[0026] (2) After homogenization, the product is extruded. The extrusion process is as follows: the heating temperature is 565 °C, the extrusion barrel temperature is 440 °C, the mold tem...

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Abstract

The invention relates to the technical field of aluminum alloy metallurgy, in particular to a high-strength aluminum alloy for electronic materials and a preparation method thereof.The method comprises the following steps that the high-strength aluminum alloy is prepared from, by weight, smaller than or equal to 0.07% of Si, smaller than or equal to 0.12% of Fe, 0.12%-0.26% of Cu, 0.12%-0.24% of Mn, 2.0%-2.3% of Mg, smaller than or equal to 0.01% of Cr, 5.9%-6.25% of Zn, 0.008%-0.023% of Ti, 0.01%-0.03% of Zr and the balance aluminum and other inevitable impurities, and the single impurity is smaller than or equal to 0.5%; the total amount of impurities is smaller than or equal to 0.15%; the materials are heated, melted, refined, cast and homogenized; and the homogenized product is extruded, quenched, stretched and subjected to two-stage aging. The 7-series aluminum alloy material with excellent strength performance is prepared, and the strength requirement of an existing electronic material during application can be met.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy metallurgy, in particular to a high-strength aluminum alloy for electronic materials and a preparation method thereof. Background technique [0002] Aluminum alloy is an alloy composed of aluminum and other elements. It has the advantages of small specific gravity, high strength, corrosion resistance, good electrical and thermal conductivity, environmental protection and recyclability. It has become one of the most widely used materials in daily life. Aluminum alloy is a multi-performance material that is beneficial to the lightweight of equipment. By adjusting the composition of various elements, aluminum alloys can have different properties such as high thermal conductivity, high electrical conductivity, high yield strength, high tensile strength, corrosion resistance, high toughness, and high hardness. It is widely used in the fields of communication, automobile, transportation, power a...

Claims

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Application Information

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IPC IPC(8): C22C21/10C22C1/02C22C1/06C22F1/053
CPCC22C21/10C22C1/026C22C1/06C22F1/053C22F1/002
Inventor 王呈刚房涛蔡文宗苏本显卜建磊王迪
Owner SHANDONG YUHANG SPECIAL ALLOY EQUIP
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