High-plasticity cast aluminum alloy and gravity casting preparation method thereof
A casting aluminum alloy and gravity casting technology, which is applied in the field of metal materials and metallurgy, can solve problems such as limiting the application range of alloys, increasing alloy hot cracking and corrosion tendency, and reducing casting performance, so as to improve plasticity, high production efficiency, low cost effect
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[0036] Example 1
[0037] This embodiment relates to a high-plasticity cast aluminum alloy and its gravity casting preparation method.
[0038] In the first aspect, this embodiment provides a high-plasticity cast aluminum alloy, the alloy composition (weight content): 7.5% Si, 0.5% Mg, 0.2% Mn, 0.1% Ti, 0.01% Y, 20 ppm P, 100 ppm Sr , Fe and other inevitable impurities are less than 0.4%, and the rest is Al.
[0039] In a second aspect, this embodiment provides a method for preparing the high-plasticity cast aluminum alloy by gravity casting, which includes the following steps:
[0040] The first step is to smelt the alloy; the specific steps of the smelting process are as follows: (1) Preheat the smelted raw materials to 100°C in an oven, keep the temperature for more than 2 hours, clean and remove rust on the surface of the slagging tools, bell jars, etc., and coat them with paint. The coating is made of 25% talc powder and 5% water glass mixed with an appropriate amount of water, ...
Example Embodiment
[0044] Example 2
[0045] This embodiment relates to a high-plasticity cast aluminum alloy and its gravity casting preparation method.
[0046] In the first aspect, this embodiment provides a high-plasticity cast aluminum alloy, the alloy composition (weight content): 8.5% Si, 0.6% Mg, 0.3% Mn, 0.2% Ti, 1.0% Gd, 40 ppm P, 200 ppm Sr , Fe and other inevitable impurities are less than 0.4%, and the rest is Al.
[0047] In a second aspect, this embodiment provides a method for preparing the high-plasticity cast aluminum alloy by gravity casting, which includes the following steps:
[0048] The first step is to smelt the alloy; the specific steps of the smelting process are as follows: (1) Preheat the smelted raw materials in an oven to 200°C, keep the temperature for more than 2 hours, clean the surface of the slagging tools, bell jars, etc., and coat them with paint. The coating is made of 25% talc powder and 5% water glass mixed with an appropriate amount of water, and then placed on...
Example Embodiment
[0052] Example 3
[0053] This embodiment relates to a high-plasticity cast aluminum alloy and its gravity casting preparation method.
[0054] In the first aspect, this embodiment provides a high-plasticity cast aluminum alloy, the alloy composition (weight content): 9.5% Si, 0.7% Mg, 0.4% Mn, 0.3% Ti, 0.1% Gd, 0.1% Y, 0.02 %Nd, 60ppm P, 300ppm Sr, Fe and other inevitable impurities are less than 0.4%, and the rest is Al.
[0055] In a second aspect, this embodiment provides a method for preparing the high-plasticity cast aluminum alloy by gravity casting, which includes the following steps:
[0056] The first step is to smelt the alloy; the specific steps of the smelting process are as follows: (1) Preheat the smelted raw materials in an oven to 200°C, keep the temperature for more than 2 hours, clean the surface of the slagging tools, bell jars, etc., and coat them with paint. The coating is made of 25% talc powder and 5% water glass mixed with an appropriate amount of water, and...
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