Cast magnesium alloy of low linear shrinkage
A technology for casting magnesium alloys and linear shrinkage, which is applied in the field of magnesium alloys, can solve problems affecting the qualified rate of magnesium alloy parts, limit the use range, and affect the application of casting magnesium alloys, and achieve small changes in liquid volume and solid volume, and fluidity And the effect of good die-casting and filling ability
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Embodiment 1
[0028] The magnesium alloy is prepared according to the steps described in the above process one, and the casting adopts metal mold casting, and the weight percentage of the magnesium alloy is composed of Al 1.5%, Zn 0.1%, Mn 0.1%, Y 0.0002%, Nb 0.0002%, Li 0.0002%, Zr 0.0002%, the rest is Mg.
[0029] Castings are heat treated.
[0030] See Table 1 for the properties of the magnesium alloy castings provided in this example.
Embodiment 2
[0032] Prepare the magnesium alloy according to the steps described in the above process two, the casting adopts semi-solid casting, and the weight percentage of the magnesium alloy is composed of Al 25%, Zn 3.5%, Mn 2.2%, Sc 16%, Nb 4%, Li 9%, Ti 2%, the rest is Mg.
[0033] Castings are heat treated. See Table 1 for the properties of the magnesium alloy castings provided in this example.
Embodiment 3
[0035]The magnesium alloy is prepared according to the steps described in the above-mentioned process 1. The casting adopts high-pressure die-casting, and the weight percentage of the magnesium alloy is composed of Al1.5%, Zn 0.3%, Mn 0.1%, Sm 0.1%, Nb 0.05%, Li 0.001%, Sr 0.001 %, the rest is Mg.
[0036] See Table 1 for the properties of the magnesium alloy castings provided in this example.
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