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介绍了铝锂合金的氧化特点，并详细分析研究熔剂在铝锂合金熔炼、铸造过程中的保护、精炼行为。认为熔剂保护比氩气保护更容易得到合格氢含量的铸锭，尤其是结晶器中使用熔剂保护时所特有的除氢作用和熔剂自润滑作用，使铸锭氢含量显著降低，表面质量大幅度提高，从而减少或避免铸锭的裂纹倾向。
The oxidation characteristics of Al-Li alloy are introduced, and the protection and refining behavior of flux in Al-Li alloy melting and casting process are analyzed in detail. It is considered that the flux protection is easier to obtain the ingot with qualified hydrogen content than the argon protection, especially the hydrogen removal and flux self-lubrication during the flux protection in the mold. The hydrogen content of the ingot is significantly reduced, Increase, thereby reducing or avoiding ingot crack tendency.