粘土旧砂鲕化现象研究的概述  

Review of Study on Oolitization of Used-clay-sand

作　　者：周诚岩[1] 张希俊[1] 张方[1] 明超[1] 

机构地区：[1]昆明理工大学材料成型实验室,云南昆明650093

出　　处：《热加工工艺》2012年第3期34-37,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50665004)

摘　　要：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。The mechanism and definition of the oolitization phenomenon and its impact on the property of the reclaimed sand were introduced,with reviewing the previous works of the oolitization of molding sand.Thermally reclamation sands for core-molding were discussed as well.During core-molding process using thermally-reclamation-sands,the notion of controlling the oolitization rate was proposed.

关 键 词：粘土旧砂 鲕化现象 热法再生 

分 类 号：TG221[金属学及工艺—铸造]