Heat mechanical treatment technology for improving comprehensive performance of aluminum alloy
A technology of thermomechanical treatment and comprehensive performance, which is applied in the field of thermomechanical treatment process to improve the comprehensive performance of aluminum alloy and heat treatment process of aluminum alloy. Problems such as production demand and large damage to production equipment can achieve the practical application value of large industries, improve the matching of strength and plastic toughness, and improve the effect of corrosion resistance
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Embodiment 1
[0034] The sample is an Al-1.0Mg-1.0Si-0.9Cu-0.2Zn (mass fraction%) aluminum alloy cold-rolled plate with a thickness of 10.0mm. Put the sample into a salt-bath furnace at 520-530°C for solution treatment, holding time for 1 hour; carry out warm rolling with a deformation of 50% at 300°C, and conduct continuous rolling with a deformation of 60% immediately after warm rolling The thin plate is obtained; the obtained thin plate is subjected to solution water quenching treatment at 520-530°C, and the holding time is 1 hour; then it is put into an aging box for pre-aging treatment, the aging temperature is 100°C, and the aging time is 16h; The conditions of asymmetric rolling are as follows: the speed ratio is 1.1, the deformation is 5%, and the deformation temperature is room temperature; finally, natural aging is carried out for 15 days, and tensile samples are made according to GB228-76. The parameters of yield strength, tensile strength and elongation of the Al-1.0Mg-1.0Si-0.9...
Embodiment 2
[0036] The sample is an Al-1.0Mg-1.0Si-0.9Cu-0.2Zn (mass fraction%) aluminum alloy cold-rolled plate with a thickness of 10.0mm. Put the sample into a salt-bath furnace at 520-530°C for solution treatment, holding time for 1 hour; carry out warm rolling with a deformation of 50% at 300°C, and conduct continuous rolling with a deformation of 60% immediately after warm rolling The thin plate is obtained; the obtained thin plate is subjected to solid solution water quenching treatment at 520-530°C, and the holding time is 1 hour; then it is put into an aging box for pre-aging treatment, the aging temperature is 60°C, and the aging time is 100h; Rolling, the conditions of asymmetric rolling are: deformation temperature 150°C, different velocity ratio 1.3, deformation amount ~10%; finally carry out artificial aging at 60°C-72h, and make tensile samples according to GB228-76. The parameters of yield strength, tensile strength and elongation of the Al-1.0Mg-1.0Si-0.9Cu-0.2Zn (mass fr...
Embodiment 3
[0038] The sample is an Al-1.0Mg-1.0Si-0.9Cu-0.2Zn (mass fraction%) aluminum alloy cold-rolled plate with a thickness of 10.0mm. Put the sample into a salt-bath furnace at 520-530°C for solution treatment, holding time for 1 hour; carry out warm rolling with a deformation of 50% at 300°C, and conduct continuous rolling with a deformation of 60% immediately after warm rolling The thin plate is obtained; the obtained thin plate is subjected to solid solution water quenching treatment at 520-530°C, and the holding time is 1 hour; then it is put into an aging box for pre-aging treatment, the aging temperature is 120°C, and the aging time is 10h; Rolling treatment, the conditions of asymmetric rolling are: deformation temperature 250°C, roll surface speed ratio 1.8, deformation amount ~ 20%; finally carry out artificial aging at 130°C-4h, and make tensile samples according to GB228-76 . The parameters of yield strength, tensile strength and elongation of the Al-1.0Mg-1.0Si-0.9Cu-0...
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