High-thermal-conductivity Ge-containing magnesium alloy suitable for cold chamber die casting and processing technology thereof
A cold chamber die-casting, high thermal conductivity technology, applied in the field of alloys, can solve the problems of complex smelting and pouring equipment and processes, toxic gas pollution of the environment, damage to alloy properties, etc., to achieve excellent filling performance, excellent flame retardancy, shrinkage cavity Formation tends to have little effect
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Embodiment 1
[0017] A Ge-containing magnesium alloy with high thermal conductivity suitable for cold chamber die-casting smelted at 750 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.8wt.%, Ge: 2.6wt.%; Mn: 1.5wt.%, Ni: 2.9wt.%, Y: 0.8wt.%, Nb: 0.4wt .%, 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 w...
Embodiment 2
[0020]A Ge-containing magnesium alloy with high thermal conductivity suitable for cold chamber die-casting smelted at 770 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.9wt.%, Ge: 3.1wt.%; Mn: 1.8wt.%, Ni: 2.6wt.%, Y: 0.8wt.%, Nb: 0.4wt .%, 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 wi...
Embodiment 3
[0023] A Ge-containing magnesium alloy with high thermal conductivity suitable for cold chamber die-casting smelted at 790 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.0wt.%, Ge: 3.2wt.%; Mn: 1.8wt.%, Ni: 2.6wt.%, Y: 0.9wt.%, Nb: 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 cast...
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