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Ausforming method capable of improving mechanical property of aluminum alloy rolled plate

A deformation heat treatment and aluminum alloy technology, applied in the field of deformation heat treatment of metal materials, can solve the problems of insignificant improvement of mechanical properties, long process cycle, low efficiency, etc., and achieve the effect of shortening process cycle, simple operation and improving plasticity

Active Publication Date: 2018-05-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a thermomechanical treatment method for improving the mechanical properties of aluminum alloy rolled plates, which solves the problem of long process cycle, low efficiency, large energy consumption and poor mechanical properties of existing treatment methods. raise insignificant issues

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  • Ausforming method capable of improving mechanical property of aluminum alloy rolled plate
  • Ausforming method capable of improving mechanical property of aluminum alloy rolled plate

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Experimental program
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Effect test

Embodiment 1

[0019] according to figure 1 In the deformation heat treatment process shown, the material used is 6016 aluminum alloy with a thickness of 10mm. Firstly, the 6016 aluminum alloy is subjected to solution treatment at 560°C / 1h, and water quenched to room temperature; the solid solution aluminum alloy material is immediately subjected to 180°C / 10min pre-aging treatment; and then the pre-aging aluminum alloy material is subjected to cryogenic rolling, rolling An ordinary two-roll mill is used for the production, the cryogenic rolling temperature is controlled at -160°C by liquid nitrogen, the deformation amount of each pass is 5%, and the total deformation amount is 50%; finally, the cryogenically rolled aluminum alloy material is subjected to warm rolling deformation , The warm rolling temperature is controlled at 140°C by an oil bath, the deformation of each pass is 10%, the total deformation is 80%, and the total deformation of cryogenic rolling and warm rolling is 90%.

[002...

Embodiment 2

[0022] according to figure 1 In the deformation heat treatment process shown, the material used is 6016 aluminum alloy with a thickness of 10mm. First, the 6016 aluminum alloy is subjected to solution treatment at 560°C / 1h, and quenched to room temperature; the solid solution aluminum alloy material is immediately subjected to 170°C / 15min pre-aging treatment; then the pre-aging aluminum alloy material is subjected to cryogenic rolling, rolling An ordinary two-roll rolling mill is used for the production, the cryogenic rolling temperature is controlled at -160°C by liquid nitrogen, the deformation amount of each pass is 5%, and the total deformation amount is 60%; finally, the cryogenically rolled aluminum alloy material is subjected to warm rolling deformation , The warm rolling temperature is controlled at 130°C by an oil bath, the deformation of each pass is 10%, the total deformation is 80%, and the total deformation of deep cold rolling and warm rolling is 92%.

[0023] T...

Embodiment 3

[0025] according to figure 1 In the deformation heat treatment process shown, the material used is 6016 aluminum alloy with a thickness of 10mm. Firstly, the aluminum alloy is subjected to solution treatment at 560°C / 1h, and water quenched to room temperature; the solid solution aluminum alloy material is immediately subjected to 180°C / 10min pre-aging treatment; then the pre-aging aluminum alloy material is subjected to cryogenic rolling, rolling Using an ordinary two-roll mill, the cryogenic rolling temperature is controlled at -160°C by liquid nitrogen, the deformation of each pass is 5%, and the total deformation is 45%; finally, the cryogenically rolled aluminum alloy material is subjected to warm rolling deformation, The warm rolling temperature is controlled at 150°C by an oil bath, the deformation in each pass is 10%, the total deformation is 85%, and the total deformation in deep cold rolling and warm rolling is 92%.

[0026] The room temperature mechanical properties...

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Abstract

The invention discloses an ausforming method capable of improving the mechanical property of an aluminum alloy rolled plate. The ausforming method particularly comprises the following steps of (1) solution treatment, (2) preaging, (3) deep cooling rolling and (4) warm rolling. Compared with a traditional 6000 series aluminum alloy deep cooling rolled state plate, the intensity and plasticity of the aluminum alloy rolled plate machined by the ausforming method are improved significantly. Compared with a traditional peak-aging state plate, the intensity of the aluminum alloy rolled plate machined by the ausforming method is improved substantially and the aluminum alloy rolled plate and the traditional peak-aging state plate have similar plasticity. With the adoption of the ausforming method,the processes are simple, the cycle is short, the energy consumption is low, and the ausforming method has very high potential applications and value in industrial production.

Description

technical field [0001] The invention belongs to the technical field of deformation heat treatment technology of metal materials, and in particular relates to a deformation heat treatment method for improving the mechanical properties of aluminum alloy rolled plates. Background technique [0002] The 6000 series aluminum alloy is an Al-Mg-Si series heat-treatable and strengthened aluminum alloy with high specific strength, excellent processing performance, welding performance and corrosion resistance. However, the rolled plate has poor plasticity and is difficult to process and shape. Although the plasticity of the annealed plate is improved, its strength is seriously lost. By controlling the distribution of the second phase and refining the grains in the rolled sheet, its plasticity can be improved and the comprehensive mechanical properties of the sheet can be improved. [0003] The commonly used production process for 6000 series aluminum alloy sheets is homogenization-ho...

Claims

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Application Information

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IPC IPC(8): C22F1/043C22F1/047C22F1/05
CPCC22F1/043C22F1/047C22F1/05
Inventor 陈兴品梅霖任平李思黄光杰刘庆
Owner CHONGQING UNIV
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