A kind of production method of aluminum alloy material with good electrical conductivity

Abstract

The invention discloses an aluminum alloy material with good electrical conductivity and a production method thereof. Aluminum is first melted together with Al-B intermediate alloy, copper and silver, and subjected to heat preservation treatment-quick cooling, and then subjected to two heating-heat preservation treatments. Made into the first treatment material, during the rapid cooling and two heating-insulation treatments, the supersaturated solid solution in the aluminum matrix is ​​precipitated more, the lattice distortion and recovery are more thorough, and the thermal conductivity and electrical conductivity of the alloy are enhanced. And doped a small amount of titanium in the alloy to generate a small amount of TiAl 2 At the interface, the casting structure and weld structure are refined to increase the mechanical properties of the aluminum alloy material containing silver and a small amount of boron. At the same time, a small amount of vanadium is added to increase the comprehensive mechanical properties, and rhenium is added to refine the grains twice. The precipitation of vanadium in the crystal is reduced, and the composite effect of boron, rhenium and vanadium promotes the recovery of the conductivity of aluminum in the alloy during annealing, and strengthens the second phase of rhenium to reduce the impact on the conductivity of the alloy when the mechanical properties increase.

Description

technical field [0001] The invention relates to a production method of an aluminum alloy material with good electrical conductivity. 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 development, there is an urgent need for a high electric...

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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

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