分析了夹杂物（Ａｌ２Ｏ３ 等） 的结构特性和气体（ 氢） 在铝凝固过程中的行为， 阐述了铝熔体中夹杂与氢的相互依存关系， 提出夹杂与氢相互作用的“寄生机制”观点。指出了夹杂的存在是气体难以除净的关键限制因素， 排杂是除气的基础， 并通过实验得到证实， 对铝液净化实践具有实际指导作用，是提高铝材冶金质量的关键 The structural characteristics of inclusions (Al2O3, etc.) and the behavior of gas (hydrogen) during the solidification of aluminum were analyzed. The interdependence between inclusions and hydrogen in aluminum melt was expounded, and the “parasitic mechanism” of the interaction between inclusions and hydrogen was proposed . It is pointed out that the existence of inclusions is the key limiting factor for the difficulty of gas removal, and the impurity removal is the basis of degassing. It is verified through experiments that it has the practical guidance to purify aluminum liquid, which is the key to improve the quality of aluminum metallurgy