Magnesium alloy sheet rolling method
A magnesium alloy and plate technology, applied in metal rolling, temperature control, etc., can solve problems such as low production efficiency, thick plate structure, and narrow forming temperature range, so as to reduce waste and loss, shorten rolling time, and improve mechanics performance effect
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Embodiment 1
[0034] AZ10 (American ASTM standard grade, the same below) magnesium alloy plate processing
[0035] A rolling method of a magnesium alloy plate of the present invention, the steps are: first preheating an AZ10 magnesium alloy cast slab (thickness of the cast slab is about 10mm) at 400°C, reaching 400°C after preheating for 4 minutes, and then directly The first rolling is formed, the reduction is 80%, and a 2mm thick magnesium alloy plate is obtained after the rolling is completed. The macroscopic photo of the magnesium alloy plate is as follows figure 1 As shown in plate (a), by figure 1 It can be seen from the plate (a) in this embodiment that a magnesium alloy plate with a smooth surface is obtained through large-strain rolling in this embodiment. The microstructure photos of the plate are as follows figure 2 shown by figure 2 It can be seen that a wide range of dynamic recrystallization occurs in the plate, and the recrystallized grain size reaches below 2 μm, but t...
Embodiment 2
[0037] Plate Processing of AZ31 Magnesium Alloy
[0038] A method for rolling a magnesium alloy plate of the present invention, the steps of which are: first carry out solution heat treatment to an AZ31 magnesium alloy billet with a thickness of 12mm, the temperature during the solution heat treatment is 390°C, and the time for the solution heat treatment is 8h , After the solution heat treatment is completed, the obtained ingot is subjected to two passes of small-strain rolling. Next, it is directly rolled and formed in one pass, and the reduction is 76%. After the rolling is completed, a 2.5mm thick magnesium alloy plate is obtained. The macroscopic photo of the magnesium alloy plate is as follows figure 1 As shown in plate (b) in , given by figure 1 In the plate (b), it can be seen that a magnesium alloy plate with a smooth surface is obtained through large strain rolling in this embodiment. The microstructure photos of the plate are as follows image 3 shown by image...
Embodiment 3
[0040] Plate Processing of AZ31 Magnesium Alloy
[0041] A rolling method of a magnesium alloy plate of the present invention, the steps are: firstly carry out two passes of small-strain rolling at 400° C. for billet opening of an AZ31 magnesium alloy casting slab with a thickness of 12 mm; 17% and 10%, solution heat treatment is carried out after billet opening, the temperature of solution heat treatment is 390°C, the time of solution heat treatment is 4h, and the ingot after solution heat treatment is subjected to a large strain at 400°C Roll forming, the reduction is 80%, and a 1.8mm thick magnesium alloy plate is obtained after rolling. The microstructure photo of the magnesium alloy sheet is as follows Figure 4 and Figure 5 shown, where Figure 5 for Figure 4 Enlarged photographs of local tissues in the middle. Depend on Figure 4 and Figure 5 It can be seen that complete dynamic recrystallization occurs in the plate, forming a uniform equiaxed grain structure ...
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Abstract
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