High-performance uniformity aluminium alloy ingot and production method thereof

Abstract

The invention discloses a high-performance uniformity aluminium alloy ingot and a production method thereof. The high-performance uniformity aluminium alloy ingot comprises the following components in percentage by weight: 2.1-3.8 percent of Cu, 7.6-9.3 percent of Si, 0-0.28 percent of Mg, 0-0.9 percent of Zn, 0-0.8 percent of Fe, 0-0.48 percent of Mn, 0-0.48 percent of Ni, 0-0.1 percent of Ti, 0-0.1 percent of Pb, 0-0.1 percent of Sn, 0-0.25 percent of other trace element sum and the balance of Al. The invention also provides the production method of the high-performance uniformity aluminium alloy ingot. The high-performance uniformity aluminium alloy ingot has even alloying components, effectively controls the problem of component segregation and has good mechanical property and good processing property. The production method of the high-performance uniformity aluminium alloy ingot can effectively remove nonmetal materials in waste aluminium materials and reduces slag generated in a smelting process.

Description

technical field [0001] The invention relates to an aluminum alloy ingot and a production method thereof, in particular to a high-performance uniform aluminum alloy ingot and a production method thereof. Background technique [0002] At present, the aluminum-silicon alloys on the market have high impurity content, serious component segregation, poor mechanical properties, poor raw material sorting ability, high preparation cost and low efficiency. [0003] At the same time, there are currently two main methods for preparing high-performance uniform aluminum alloy ingots in the market: one is to use pure aluminum ingots as the base, add the required alloying elements according to the requirements of the composition ratio, and smelt the required grades of aluminum alloy Ingots, but the cost of this preparation method is very high; another preparation method is to use waste aluminum to prepare, using recycled waste aluminum parts or scraps and waste aluminum wires in the process...

AI Technical Summary

Problems solved by technology

[0009] At present, the high-temperature smelting method is generally adopted in the industry, and the temperature is controlled at about 800°C during the smelting process. This kind of smelting causes a lot of burning damage to raw materials and consumes a lot of energy; iron rakes are generally used for stirring during the smelting process, and iron rakes will be used for stirring. Increasing the iron content of the aluminum melt will increase the gas and slag content of the melt; the refining process is immature, and the refining agent is generally sprinkled directly into the furnace, and the degassing and impurity removal effects are not good

[0010] In summary, the main technical problems faced by the method of using aluminum scrap to prepare high-performance uniform aluminum alloys are: the quality and efficiency of sorting aluminum scrap, the control and efficiency of burning loss in smelting production, and the uniformity of product components. Due to the above technical problems, problems such as poor quality of raw material sorting, low efficiency, serious component segregation, high impurity content, and unstable performance will be encountered in production.