粘土旧砂鲕化现象研究的概述
Review of the study on oolitization of used-clay-sand
周诚岩
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作者单位：昆明理工大学材料工程学院材料成型实验室
中文关键字：粘土旧砂；鲕化现象；热法再生
英文关键字：used-clay-sand; oolitization; thermally-reclamation
中文摘要：本文对国内外粘土旧砂鲕化研究的发展进行了回顾。介绍了鲕化的概念、鲕化现象的产生机理和鲕化对再生砂质量的影响。探讨了粘土混合旧砂热法再生砂用于制芯的问题。提出在热法再生砂用于制芯时应注意控制鲕化率。
英文摘要：Reviewed the development of the study of the oolitization of molding sand, This article introduced the mechanism and definition of the oolitization phenomenon and its impact on the property of the reclaimed sand .it also discussed some problems of thermally reclamation sands for core-molding ,given the notice of controlling the rate of the oolitization when useing the thermally-reclamation-sands for core-molding.