High-heat-conduction and flame-retarding Al-Li-Co-Se aluminum lithium alloy
An aluminum-lithium alloy, high thermal conductivity technology, applied in the field of alloys, can solve the problem that the anti-combustion performance cannot meet the requirements, and achieve the effect of preventing oxygen from intruding into the alloy liquid, reducing the amount of use, and good flame retardant effect
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Embodiment 1
[0018] A high thermal conductivity Al-Li-Co-Se aluminum-lithium alloy with combustion resistance when smelting at 720 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 10.6wt.%, Co: 2.3wt.%, Se: 1.9wt.%, Sr: 4.6wt.%, Pd: 1.2wt.%, Ge: 0.3wt .%, B: 1.8wt.%, S: 0.9wt.%, 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 720 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is poured into a water glass mold at 720 degrees for 10 minutes for casting. The ingots were deformed at room temperature with a rolling reduction of 8% in each pass. Every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 200 degrees, 1.8 hours. The final heat treatment process af...
Embodiment 2
[0020]A high thermal conductivity Al-Li-Co-Se aluminum-lithium alloy with combustion resistance when smelted at 750 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 12.6wt.%, Co: 2.3wt.%, Se: 1.8wt.%, Sr: 4.5wt.%, Pd: 1.6wt.%, Ge: 0.4wt .%, B: 1.8wt.%, S: 0.9wt.%, 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 750 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is poured into a water glass mold at 750°C for 10 minutes for casting. The ingot was deformed at room temperature with a rolling reduction of 9% per pass. Every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 200 degrees, 1.8 hours. The final heat treatment process after rolling is...
Embodiment 3
[0022] A high thermal conductivity Al-Li-Co-Se aluminum-lithium alloy with combustion resistance when smelting at 780 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 13.6wt.%, Co: 2.8wt.%, Se: 1.3wt.%, Sr: 5.1wt.%, Pd: 1.6wt.%, Ge: 0.3wt .%, B: 2.4wt.%, S: 0.9wt.%, 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 poured into a water glass mold at 780 degrees for 10 minutes for casting. The ingot was deformed at room temperature with a rolling reduction of 6% in each pass. Every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 200 degrees, 1.8 hours. The final heat treatment process afte...
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