Production method of 5754-H24 aluminum alloy plate strip
A technology of aluminum alloy strip and production method, which is applied in the field of aluminum alloy manufacturing, can solve the problems of high production cost, many processes, narrow annealing temperature range, etc., reduce the requirements for temperature measurement accuracy and furnace temperature uniformity, and reduce process waste , the effect of reducing production costs
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Embodiment 1
[0024] The short-process production method of 5754-H24 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→annealing of finished products→finishing→packaging.
[0025] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:
[0026] Al
[0027] The melting temperature is 730-740°C, the refining temperature is 720-730°C, and the casting temperature is 670-680°C.
[0028] (2) Heating: Heat the ingot to 500°C and keep it warm for 3 hours.
[0029] (3) Hot rolling: the thickness of the hot-rolled billet is 3.8mm (24% is reserved), and the finishing temperature of the hot-finish rolling is 335°C.
[0030] (4) Cold rolling: After one pass of cold rolling to 2.9mm, the total processing rate is 24%.
[0031] (5) Finished product annealing: temperature range 245-265 ℃, holding time 1-5 hours.
[0032] ...
Embodiment 2
[0035] The production method of the 5754-H24 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→finished product annealing→finishing.
[0036] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:
[0037] Al
[0038] The melting temperature is 730-745°C, the refining temperature is 725-740°C, and the casting temperature is 685-700°C.
[0039] (2) Heating: Heat the ingot to 500°C and keep it warm for 4 hours.
[0040] (3) Hot rolling: the thickness of the hot-rolled billet is 2.9mm (32% is reserved), and the finishing temperature of the hot-finish rolling is 332°C.
[0041] (4) Cold rolling: After one pass of cold rolling to 1.98mm, the total processing rate is 32%.
[0042] (5) Finished product annealing: temperature range 245-265 ℃, holding time 1-5 hours.
[0043] Annealing proc...
Embodiment 3
[0047] The short-process production method of 5754-H24 aluminum alloy plate and strip in this embodiment includes the following production process: melting and casting→sawing→face milling→heating→hot rolling→cold rolling→finished product annealing→finishing.
[0048] (1) Melting and casting: the mass percentage of the chemical composition of the ingot after melting and casting is:
[0049] Al
[0050] The melting temperature is 730-750°C, the refining temperature is 720-730°C, and the casting temperature is 675-685°C.
[0051] (2) Heating: heat the ingot to 495°C and keep it warm for 4 hours.
[0052] (3) Hot rolling: the thickness of the hot-rolled billet is 3.3mm (reserved 40%), and the finishing temperature of the hot-finish rolling is 335°C.
[0053] (4) Cold rolling: After one pass of cold rolling to 1.98mm, the total processing rate is 40%.
[0054] (5) Finished product annealing: temperature range 245-265 ℃, holding time 1-5 hours.
[0055] Anneali...
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