Practices for Reducing Non-Metallic Impurities in 3N Aluminum Ingots

3N aluminum is widely used in the power, electronics, and construction industries, with increasing demands for higher quality.During aluminum smelting and casting, the infiltration of non-metallic impurities such as hydrogen and oxygen significantly affects material properties.This study addresses the impact of the high-temperature, high-humidity environment in southern China on the impurities in 3N aluminum ingots.It suggests that through equipment upgrades, process optimization, and production management improvements, non-metallic impurities in the ingots can be reduced.Specifically, oxygen and hydrogen impurity levels were reduced by 0.0021% and 0.0004%, respectively.These measures significantly enhanced the purity of 3N aluminum, ensuring the supply meets the high-end aluminum market's requirements.