Ultralight flame-retardant and high-damping Al-Mg-Li-Sn aluminum lithium alloy
An aluminum-lithium alloy, al-mg-li-sn technology, applied in the field of alloys, can solve problems such as the inability to meet the requirements of anti-combustion performance, achieve the improvement of service life and mechanical properties at high temperature, reduce the amount of alloying elements used, and achieve flame retardancy. The effect of element content reduction
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Embodiment 1
[0019] An ultra-light, flame-retardant and high-damping Al-Mg-Li-Sn aluminum-lithium alloy with 710-degree melting. In terms of weight percentage, the chemical composition of the alloy is: Li: 6.4wt.%, Mg: 11.3wt.%, Sn: 2.6wt.%, Sr: 2.8wt.%, Ca: 0.9wt.%, Ge: 0.6wt .%, Zr: 0.2wt.%, Pr: 0.1wt.%, S: 0.5wt.%, B: 1.3wt.%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 710 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 710 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 8m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 12%. Every 3 passes of rolling requires an i...
Embodiment 2
[0021]A 730-degree smelting ultra-light flame-retardant high-damping Al-Mg-Li-Sn aluminum-lithium alloy. In terms of weight percentage, the chemical composition of the alloy is: Li: 7.2wt.%, Mg: 8.5wt.%, Sn: 2.7wt.%, Sr: 2.3wt.%, Ca: 0.9wt.%, Ge: 0.6wt .%, Zr: 0.4wt.%, Pr: 0.1wt.%, S: 0.5wt.%, B: 1.2wt.%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 730 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 730 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 9m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 13%. Every 3 passes of rolling requires an intermediate ...
Embodiment 3
[0024] A 780-degree melting ultra-light flame-retardant high-damping Al-Mg-Li-Sn aluminum-lithium alloy. In terms of weight percentage, the chemical composition of the alloy is: Li: 7.2wt.%, Mg: 8.6wt.%, Sn: 2.7wt.%, Sr: 2.6wt.%, Ca: 0.8wt.%, Ge: 0.7wt .%, Zr: 0.2wt.%, Pr: 0.1wt.%, S: 0.5wt.%, B: 1.2wt.%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 780 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 780 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 9m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 12%. Every 3 passes of rolling requires an intermediate ...
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