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.

Active Publication Date: 2016-11-30
SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weldalite alloys including Weldalite TM 049 and 210 two alloy series, of which Weldalite TM The 049 alloy has high weldability, and its chemical composition and related properties are in line with the application of aerospace structural materials, and its chemical composition and related properties are in line with the application of aerospace structural materials. Improves the weldability of the material and therefore the corresponding cost of Al-Li alloys

Method used

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  • A kind of aluminum-lithium alloy material with added tin, zinc and manganese and production method thereof
  • A kind of aluminum-lithium alloy material with added tin, zinc and manganese and production method thereof
  • A kind of aluminum-lithium alloy material with added tin, zinc and manganese and production method thereof

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Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to an aluminum-lithium alloy material added with tin, zinc and manganese and a production method thereof. The aluminum-lithium alloy material of the present invention is composed of the following components by weight percentage: tin-zinc-manganese alloy particles: 1.5-2.5wt%, lithium: 1.5-2.5wt%, copper: 1-2wt%, magnesium: 0.05-0.2wt%, Balance: Aluminum. The aluminum-lithium alloy material of the present invention reduces the cost of the alloy material by replacing the expensive silver element with cheap tin, zinc and manganese elements. The particle powder made of intereutectic tin, zinc and manganese three-element material is dispersed in the alloy of lithium and aluminum, which improves the strength and welding performance of the alloy material. The production process is preferably improved, and the vacuum smelting process is used to effectively remove impurities such as hydrogen, sodium, and potassium while reducing a large amount of volatile alloying elements such as lithium and magnesium in the melt. Loss, avoiding material composition deviations. The aluminum-lithium alloy material of the invention can be widely used in machinery manufacturing, transportation machinery, power machinery, aviation industry and the like.

Description

technical field [0001] The invention relates to an aluminum-lithium alloy material and a production method thereof, in particular to an aluminum-lithium alloy material added with tin, zinc and manganese and a production method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy in recent years, the demand for high-strength aluminum alloy welded structural parts is increasing. [0003] Due to the low density of aluminum alloy, but relatively high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, it is widely used in industry, and its usage is second only to alumi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04
Inventor 孙飞赵勇
Owner SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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