Stabilizing processing method of 5052 aluminium alloy

A stabilization treatment, aluminum alloy technology, applied in the direction of metal rolling, to achieve uniform and stable mechanical properties, reduce energy consumption, and improve product production efficiency

Active Publication Date: 2012-06-13
ZHEJIANG GKO ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the 5052 aluminum alloy will undergo aging softening when it is placed at room temperature, and it is impossible to obtain stable mechanical properties of the final product only by adjusting the chemical composition and content.

Method used

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  • Stabilizing processing method of 5052 aluminium alloy

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Experimental program
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Effect test

Embodiment 1

[0020] First put the aluminum ingot into the crucible resistance furnace, when the aluminum ingot is melted, add the intermediate alloy and stir; then add Mg and Zn, slag and refine; stir and stand still, pour into the cast iron mold; Aluminum alloy ingots are hot-rolled and cold-rolled into aluminum alloy coils, and the aluminum alloy coils are cold-rolled to a thickness of 3.0mm; intermediate annealing is performed at a temperature of 550°C, and the holding time is 12 hours; the above-mentioned intermediate After the annealed aluminum alloy coil is cold-rolled with a cold deformation processing rate of 50%, a 5052 aluminum alloy coil with a thickness of 1.5 mm and stable performance is obtained.

Embodiment 2

[0022] First put the aluminum ingot into the crucible resistance furnace, when the aluminum ingot is melted, add the intermediate alloy and stir; then add Mg and Zn, slag and refine; stir and stand still, pour into the cast iron mold; Aluminum alloy ingots are hot-rolled and cold-rolled into aluminum alloy plates, and the aluminum alloy plates are hot-rolled to a thickness of 2.0mm; intermediate annealing is performed at a temperature of 530°C, and the holding time is 15 hours; after the above-mentioned intermediate annealing A 5052 aluminum alloy plate with a thickness of 1.2 mm and stable properties was obtained through cold rolling with a cold deformation processing rate of 40%.

Embodiment 3

[0024] First put the aluminum ingot into the crucible resistance furnace, when the aluminum ingot is melted, add the intermediate alloy and stir; then add Mg and Zn, slag and refine; stir and stand still, pour into the cast iron mold; Aluminum alloy ingots are hot-rolled and cold-rolled into aluminum alloy coils, and the aluminum alloy coils are first hot-rolled and then cold-rolled to a thickness of 1.0mm; intermediate annealing is performed at a temperature of 560°C, and the holding time is 12 Hours; the above-mentioned aluminum alloy coil after the intermediate annealing is subjected to cold rolling with a cold deformation processing rate of 35% to obtain a 5052 aluminum alloy coil with a thickness of 0.65 mm and stable performance.

[0025] Through the above stabilization treatment, the alloy is in a completely recrystallized state, the grain size is uniform, and the final product obtains stable mechanical properties. The specific performance indicators are shown in Table ...

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Abstract

The invention provides a stabilizing processing method of a 5052 aluminium alloy, belonging to the technical field of alloy materials and solving the problem of unstable mechanical property of the 5052 aluminium alloy. The stabilizing processing method of the 5052 aluminium alloy comprises the following steps of: A. rolling: selecting an aluminium alloy coiled material or an aluminium alloy sheetmaterial to be processed to achieve the thickness of 1.0-3.0mm through hot rolling or / and cold rolling; B. intermediate annealing: carrying out the intermediate annealing on the rolled aluminium alloy coiled material or aluminium alloy sheet material under the condition of the temperature of 520-580 DEG C, and keeping the temperature for 10-15 hours; and C. cold rolling: carrying out the cold rolling with the cold deformation processing rate of 20-50 percent on the aluminium alloy coiled material or the aluminium alloy sheet material subjected to the intermediate annealing to manufacture a 5052 aluminium alloy material which has stable property. The stabilizing processing method of the 5052 aluminium alloy has the advantages of low energy consumption, high production efficiency, uniform and stable mechanical property of manufactured finished products and small individual difference.

Description

technical field [0001] The invention relates to a treatment method for aluminum alloys, in particular to a stabilization treatment method for 5052 aluminum alloys, and belongs to the technical field of alloy materials. Background technique [0002] At present, the application of 5052 aluminum alloy is becoming more and more extensive, and its use involves traffic, transportation, shipbuilding, electronics and other industries. It is a non-ferrous metal material with good development prospects. 5052 aluminum alloy is mainly produced by hot rolling or casting. However, no matter whether the 5052 aluminum alloy coil or plate is produced by hot rolling or cast rolling, it will face instability in the performance of the final product. This is mainly because for hot-rolled materials, due to the influence of rolling speed, equipment working conditions, operator skill level, product quality, etc., the final rolling temperature of each coil will be different. The final rolling temp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/06B21B3/00C22F1/047
Inventor 丁荣辉张超曲明洋黄文辉曾凡清
Owner ZHEJIANG GKO ALUMINUM
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