Corrosion-resistant Ta-containing magnesium alloy suitable for cold chamber die casting and processing technology thereof
A cold-chamber die-casting and corrosion-resistant technology, applied in the field of alloys, can solve the problems of toxic gas pollution, increase costs, flux inclusions, etc., and achieve excellent mechanical properties, increase production costs, and improve the effect of die casting yield.
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Embodiment 1
[0017] A corrosion-resistant Ta-containing magnesium alloy suitable for cold chamber die-casting smelted at 750 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.6wt.%, Ta: 1.8wt.%; Mn: 2.3wt.%, Si: 6.2wt.%, Sc: 0.6wt.%, B: 0.5wt.% .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 750 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 750°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with compl...
Embodiment 2
[0020]A corrosion-resistant Ta-containing magnesium alloy suitable for cold chamber die-casting smelted at 770 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.5wt.%, Ta: 1.6wt.%; Mn: 2.4wt.%, Si: 6.5wt.%, Sc: 0.6wt.%, B: 0.5wt .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 770 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 770°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with complex ...
Embodiment 3
[0023] A corrosion-resistant Ta-containing magnesium alloy suitable for cold chamber die-casting smelted at 790 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.7wt.%, Ta: 1.8wt.%; Mn: 2.3wt.%, Si: 6.8wt.%, Sc: 0.7wt.%, B: 0.5wt.% .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 790 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 790°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots, with the ingot moving down at a speed of 14m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with...
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