A kind of preparation method of ultra-light magnesium alloy strip
A technology of alloy strip and light magnesium, which is applied in the field of magnesium alloy deformation processing and rolling forming, can solve the problems of unsatisfactory quality of magnesium alloy sheet, cumbersome and complicated process, etc., and achieve low capital investment cost, excellent stamping performance, and high damping Effect
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Embodiment 1
[0025] Example 1: First, an ultra-light magnesium alloy ingot with a diameter of Ф180 mm was prepared by vacuum melting and casting, and a magnesium alloy ingot with an ICP measured composition of Mg-10.2Li-3.1Al-2.9Zn (wt.%) was prepared. The ingot wagon, head and tail removed, and homogenized annealing at 450°C for subsequent extrusion deformation. Before extrusion, heat the mold and billet to 320°C and keep it warm for 3 to 5 hours. The temperature of the extrusion cylinder is 300° C., and the thickness of the extruded sheet is 2 mm. Heat the thin plate to 300°C, keep it warm for 1-2 hours, preheat the rolls of the 450 rolling mill to 300°C, carry out rolling with a reduction of 10% in each pass, return to the furnace for annealing after 3 passes, and the annealing temperature is 240°C. Heat the thin plate to 240°C, keep it warm for 0.5 hours, preheat the rolls to 300°C, perform multi-pass rolling with a reduction of 20%, and return to the furnace for annealing after each ...
Embodiment 2
[0026] Example 2: Firstly, an ultra-light magnesium alloy ingot with a diameter of Ф180 mm was prepared by vacuum melting and casting, and a magnesium alloy ingot with an ICP measured composition of Mg-10Li-3Al-3.1Zn (wt.%) was prepared. The ingot wagon, head and tail removed, and homogenized annealed at 460°C for subsequent extrusion deformation. Before extrusion, heat the mold and billet to 310°C and keep it warm for 3-5 hours. The temperature of the extrusion barrel is 310°C, and the thickness of the extruded sheet is 2mm. Heat the thin plate to 320°C, keep it warm for 1-2 hours, preheat the rolls of the 450 rolling mill to 300°C, carry out rolling with a reduction of 10% in each pass, return to the furnace for annealing after 3 passes, and the annealing temperature is 260°C. Heat the thin plate to 260°C, keep it warm for 0.5 hours, preheat the rolls to 280°C, perform multi-pass rolling with a reduction of 20%, return to the furnace for annealing after each pass, and annea...
Embodiment 3
[0027] Example 3: First, an ultra-light magnesium alloy ingot with a diameter of Ф180 mm was prepared by vacuum melting and casting, and a magnesium alloy ingot with an ICP measured composition of Mg-10Li-3Al-3.1Zn (wt.%) was prepared. The ingot wagon, head and tail removed, and homogenized annealing at 470°C for subsequent extrusion deformation. Before extrusion, heat the mold and billet to 320°C and keep it warm for 3 to 5 hours. The temperature of the extrusion cylinder is 320° C., and the thickness of the sheet after extrusion is 2 mm. Heat the thin plate to 320°C, keep it warm for 1-2 hours, preheat the rolls of the 450 rolling mill to 300°C, carry out rolling with a reduction of 10% in each pass, return to the furnace for annealing after 3 passes, and the annealing temperature is 280°C. Heat the thin plate to 260°C, keep it warm for 0.5 hours, preheat the rolls to 280°C, perform multi-pass rolling with a reduction of 20%, return to the furnace for annealing after each p...
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Abstract
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