摘要
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。
Based on the analyses of the structures of inclusions(Al 2O 3, etc) and the behavior of hydrogen during solidification of molten aluminum, the interdependent relation between inclusions and hydrogen in molten aluminum was expounded, and the interactive mechanism between inclusions and hydrogen (“the parasitic mechanism”)was put forward. It was pointed out that the presence of inclusions is the main restrictive factor of elimilating hydrogen effectively, and removing inclusions from molten aluminum is fundamental of eliminating hydrogen when purifying molten aluminum. At the same time, views above were testified tentatively by means of experiments, they will play guiding role in the practices of purification of molten aluminum. This result will be the key to improving metallurgical quality of aluminum sheet.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1999年第A01期51-56,共6页
The Chinese Journal of Nonferrous Metals
基金
福建省自然科学基金
关键词
铝液净化
夹杂物
熔剂过滤
铝熔体
氢
purification of molten aluminum inclusions flux filtration
