Method for eliminating annealing wrinkles of aluminum alloy strip
A technology for aluminum alloy strips and aluminum alloys, applied in furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as wrinkling, achieve uniform internal stress distribution, and avoid extrusion deformation.
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Embodiment 1
[0025] Adopt the method of the present invention to process aluminum alloy strip material 1, alloy 1100 (this alloy belongs to 1XXX series aluminum alloy), blank thickness 3.0mm, finished product thickness 0.6mm, width 1200mm, roll diameter 2000mm, comprising the following steps:
[0026] A. Billet opening pass, the pass reduction is 35%, and the thickness is rolled from 3.0mm to 1.95mm;
[0027] B. In the middle pass, the reduction in the second pass is 40%, and the thickness is rolled from 1.95mm to 1.17mm; the reduction in the third pass is 35%, and the thickness is rolled from 1.17mm to 0.76mm;
[0028] C. The final pass, the pass reduction is 20%, and the thickness is rolled from 0.76mm to 0.6mm;
[0029] D. Complete annealing starts to heat up, the furnace gas temperature rises to 500°C, and the heating time is 8 hours;
[0030] E. The temperature of the aluminum alloy strip is raised to the target temperature of complete annealing, kept warm, and cooled to 200°C with t...
Embodiment 2
[0032] Adopt the method of the present invention to process aluminum alloy strip 2, alloy 3003 (this alloy belongs to 3XXX series aluminum alloy), blank thickness 3.0mm, finished product thickness 0.6mm, width 2200mm, roll diameter 1800mm, comprising the following steps:
[0033] A. Billet opening pass, the pass reduction is 35%, and the thickness is rolled from 3.0mm to 1.95mm;
[0034] B. In the middle pass, the reduction in the second pass is 40%, and the thickness is rolled from 1.95mm to 1.17mm; the reduction in the third pass is 35%, and the thickness is rolled from 1.17mm to 0.76mm;
[0035] C. The final pass, the pass reduction is 20%, and the thickness is rolled from 0.76mm to 0.6mm;
[0036] D. Complete annealing begins to heat up, the temperature of the furnace gas rises to 450°C, and the temperature rises for 10 hours;
[0037] E. The temperature of the aluminum alloy strip is raised to the target temperature of complete annealing, kept warm, and cooled to 200°C w...
Embodiment 3
[0039] Adopt the method of the present invention to process aluminum alloy strip 3, alloy 5052 (this alloy belongs to 5XXX series aluminum alloy), blank thickness 3.0mm, finished product thickness 0.74mm, width 2600mm, roll diameter 1800mm, comprising the following steps:
[0040] A. Billet opening pass, the pass reduction is 25%, and the thickness is rolled from 3.0mm to 2.25mm;
[0041] B. In the middle pass, the reduction in the second pass is 30%, the thickness is rolled from 2.25mm to 1.58mm, the reduction in the third pass is 27%, the thickness is rolled from 1.58mm to 1.15mm, and the thickness is rolled in the third pass The weight is 24%, and the thickness is rolled from 1.15mm to 0.87mm;
[0042] C. The final pass, the pass reduction is 15%, and the thickness is rolled from 0.87mm to 0.74mm;
[0043] D. Complete annealing begins to heat up, the temperature of the furnace gas rises to 400 ° C, and the temperature rises for 12 hours;
[0044] E. The temperature of the...
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