A kind of aluminum-lithium alloy material with added tin, zinc and manganese and production method thereof
A technology of an aluminum-lithium alloy and a production method, which is applied to the aluminum-lithium alloy material with tin-zinc-manganese addition and its production field, can solve the problems of improving the aluminum-lithium alloy and the like, and achieve the effects of preventing hydrogen absorption, low cost, and material quality reduction.
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Embodiment 1
[0028] Embodiment 1 Preparation of aluminum-lithium alloy material of the present invention
[0029] Batching smelting: The metals are tin-zinc-manganese alloy particles according to the weight ratio: 1.5wt%, lithium: 2.5wt%, copper: 1.5wt%, magnesium: 0.05wt%, and the balance: aluminum is smelted in a closed and inert gas Mix well in the furnace, increase the temperature of the melting furnace, and melt at 300° C. for 3 hours.
[0030] Detection: Spectroscopic analysis is used to detect the smelted alloy liquid to ensure that its composition is within the range.
[0031] Vacuum smelting: heat the alloy liquid to 700°C and place it in a vacuum melting furnace for remelting. Under the conditions of 700°C and 500Pa vacuum, vacuum smelt for 20 minutes.
[0032] Hydrogen absorption detection: through volumetric method, gravimetric method and other chemical methods to detect the hydrogen absorption of the alloy to be less than or equal to the mass fraction of 1×10 -7 .
[0033] ...
Embodiment 2
[0041] Embodiment 2 Preparation of aluminum-lithium alloy material of the present invention
[0042] Batching smelting: The metals are smelted by weight ratio as tin-zinc-manganese alloy particles: 2.5wt%, lithium: 1.5wt%, copper: 1.0wt%, magnesium: 0.75wt%, balance: aluminum in a closed smelting with inert gas Mix well in the furnace, increase the temperature of the melting furnace, and melt at 310° C. for 2 hours.
[0043] Detection: Spectroscopic analysis is used to detect the smelted alloy liquid to ensure that its composition is within the range.
[0044] Vacuum melting: heat the alloy liquid to 700°C and put it in a vacuum melting furnace for melting again. Under the conditions of 700°C temperature and 1000Pa vacuum degree, vacuum melting is carried out for 20 minutes.
[0045] Hydrogen absorption detection: through volumetric method, gravimetric method and other chemical methods to detect the hydrogen absorption of the alloy to be less than or equal to the mass fractio...
Embodiment 3
[0053] Embodiment 3 Preparation of aluminum-lithium alloy material of the present invention
[0054]Batching smelting: The metals are smelted by weight ratio as tin-zinc-manganese alloy particles: 2.0wt%, lithium: 2.0wt%, copper: 2.0wt%, magnesium: 0.2wt%, balance: aluminum in closed smelting with inert gas Mix well in the furnace, increase the temperature of the melting furnace, and melt at 310° C. for 3 hours.
[0055] Detection: Spectroscopic analysis is used to detect the smelted alloy liquid to ensure that its composition is within the range.
[0056] Vacuum smelting: heat the alloy liquid to 700°C and place it in a vacuum melting furnace for remelting. Under the conditions of 700°C and 2000Pa vacuum, vacuum smelt for 20 minutes.
[0057] Hydrogen absorption detection: through volumetric method, gravimetric method and other chemical methods to detect the hydrogen absorption of the alloy to be less than or equal to the mass fraction of 1×10 -7 .
[0058] Casting cold bi...
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