Aluminum alloy material with good conductivity and production method thereof

Abstract

The invention discloses an aluminum alloy material with good conductivity and a production method thereof. Aluminum, an Al-B intermediate alloy, copper and silver are melted together, heat preservation treatment-rapid cooling is carried out, then heating-heat preservation treatment is carried out twice, a first treatment material is prepared, in the rapid cooling treatment and the heating-heat preservation treatment twice, more supersaturated solid solutions in an aluminum matrix are separated out, crystal lattices are distorted and recovered more thoroughly, the heat conduction performance and the electric conduction performance of the alloy are enhanced, a trace amount of titanium element is doped in the alloy, a small amount of TiAl2 is generated at an interface, a casting structure and a weld structure are refined, the mechanical property of the aluminum alloy material containing silver and a small amount of boron is improved, meanwhile, a trace amount of vanadium is added, the comprehensive mechanical property is improved, rhenium is added for secondarily refining crystal grains, precipitation of vanadium in crystals is reduced, boron, rhenium and vanadium achieve the composite effect, the conductivity of aluminum is promoted to be recovered in the annealing process of the alloy, a second phase of rhenium is enhanced, and therefore the influence on the conductivity of the alloy when the mechanical property is improved is reduced.

Description

technical field [0001] The invention relates to an aluminum alloy material with good electrical conductivity, and also relates to a production method of the aluminum alloy material. Background technique [0002] Aluminum is cheap, has good electrical conductivity and corrosion resistance. In recent years, due to the need to save energy, it has received great attention in various fields, but the disadvantages of aluminum are also very obvious. Due to the poor mechanical properties of aluminum and low hardness , leading to its inability to be widely used in high-tech fields such as aerospace and chips. Therefore, it is necessary to add other trace metals to increase the conductivity and mechanical properties of aluminum. As a result, oxides are mixed in the alloy when the alloy is prepared after ingot casting, resulting in the prepared aluminum alloy being brittle, easy to break, and the thermal conductivity is reduced at the same time. In order to adapt to the current develop...

AI Technical Summary

Problems solved by technology

[0002] Aluminum is cheap, has good electrical conductivity and corrosion resistance. In recent years, due to the need to save energy, it has received great attention in various fields, but the disadvantages of aluminum are also very obvious. Due to the poor mechanical properties of aluminum and low hardness , leading to its inability to be widely used in high-tech fields such as aerospace and chips. Therefore, it is necessary to add other trace metals to increase the conductivity and mechanical properties of aluminum. As a result, oxides are mixed in the alloy when the alloy is prepared after ingot casting, resulting in the prepared aluminum alloy being brittle, easy to break, and the thermal conductivity is reduced at the same time. In order to adapt to the current development, there is an urgent need for a high electrical conductivity, better mechanical properties, Aluminum alloy with better thermal conductivity, and its preparation method needs to be optimized to reduce its oxide inclusions

Images