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Aluminum alloy, and preparation method for plate of aluminum alloy

An aluminum alloy plate and aluminum alloy technology, applied in the field of aluminum alloy processing, can solve the problems that the high temperature resistance and corrosion resistance of aluminum alloys need to be improved, and affect the fatigue resistance and service life of materials, so as to improve plasticity, hardness, and overall The effect of excellent performance

Inactive Publication Date: 2020-12-22
湖南恒佳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous development of technology, the performance requirements of materials are getting higher and higher. Insufficient toughness has become a short board for the application of aluminum alloys, which directly affects the fatigue resistance and service life of materials, and aluminum alloys have high temperature resistance and corrosion resistance. also needs to be improved

Method used

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  • Aluminum alloy, and preparation method for plate of aluminum alloy
  • Aluminum alloy, and preparation method for plate of aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The present invention also provides a method for preparing an aluminum alloy plate, comprising the following specific steps:

[0030] S1: Put the aluminum ingot into the smelting furnace to melt, then add the remaining raw materials into the smelting furnace to melt, check the content of each component, pour, and extrude to obtain the ingot.

[0031] S2: Put the cast ingot into the heat treatment furnace, keep it warm at 200-300°C for 1-3 hours, so that the alloy elements can be evenly dissolved into the aluminum matrix, and then hot-roll at 370-390°C, after hot-rolling Cold rolling was performed to obtain a slab.

[0032] S3: put the rolled and deformed slab into a heat treatment furnace for curing treatment, the curing temperature is 650-750°C, and the curing time is 1-2 hours to eliminate rolling work hardening, and obtain an aluminum alloy intermediate plate; an aluminum alloy intermediate plate The thickness ≥ 15mm.

[0033] S4: Water-cooling and quenching the al...

Embodiment 1-7

[0041] The process parameter conditions of the aluminum alloy sheet material preparation of embodiment 1-7 are shown in table 1:

[0042] The process parameter condition of aluminum alloy sheet material preparation in the embodiment 1-7 of table 1

[0043]

[0044]

[0045] Example performance test

[0046] The properties of the aluminum alloy plates prepared in Examples 1-7 were tested, and the results are shown in Table 2.

[0047] The performance test result of the aluminum alloy sheet material that table 2 embodiment 1-7 makes

[0048] Example Vickers hardness (Hv) Fracture toughness (MPa.m 1 / 2 )

[0049]It can be seen from Table 2 that the performance indicators of the aluminum alloy plates prepared in Examples 1-7 are: Vickers hardness 165-175Hv, fracture toughness 5.6-6.5MPa.m 1 / 2 , the tensile strength is 544-634MPa, the elongation is 6-15%, and the overall performance is excellent, especially suitable for aluminum alloy plates in the aerospace f...

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Abstract

The invention relates to the technical field of aluminum alloy processing, in particular to an aluminum alloy which comprises, by weight, 5%-15% of zinc, 3%-10% of magnesium, 0.5%-2.0% of copper, 0.1%-0.5% of manganese, 0.02%-0.08% of lithium, 0.01%-0.1% of zirconium, 0.02%-0.1% of rare earth elements and the balance aluminum. The aluminum alloy is prepared from aluminum ingots, pure zinc, aluminum-magnesium intermediate alloy, aluminum-copper intermediate alloy, pure manganese, pure lithium, pure zirconium and rare earth according to the alloy content through smelting and ingot casting. In the aluminum alloy, an aluminum ingot is used as a base body, wherein the hardness of the aluminum alloy can be improved through the zinc, magnesium and copper greatly; the melting temperature and the porosity of the aluminum alloy can be reduced through the rare earth elements, and the density is improved; the hardness of the aluminum alloy can be improved through the lithium, and the weight of thealuminum alloy can be further reduced; the strength, hardness and elastic limit of the aluminum alloy can be improved through the manganese, and the corrosion resistance of the aluminum alloy can befurther improved; and the hardness, strength and corrosion resistance of the aluminum alloy can be improved through the zirconium, a casting structure can be refined through the zirconium, and the high-temperature plasticity of the alloy is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to a method for preparing an aluminum alloy and a plate thereof. Background technique [0002] Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added, and is one of the light metal materials. In addition to the general characteristics of aluminum, aluminum alloys also have specific characteristics of some alloys due to the different types and quantities of alloying elements added. The density of aluminum alloy is 2.63~2.85g / cm, it has high strength, its specific strength is close to that of high alloy steel, its specific stiffness exceeds that of steel, it has good casting performance and plastic processing performance, good electrical and thermal conductivity, good resistance Corrosion and weldability, can be used as structural materials. Aluminum alloy is the main material used in the manufacture of aircraft. Compar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/02C22F1/02C22F1/053
CPCC22C1/026C22C21/10C22F1/02C22F1/053
Inventor 陈智斌蒋会阳林建华付平谢芳
Owner 湖南恒佳新材料科技有限公司
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