Research,application and development of inorganic binder for casting process  

作　　者：Xiao-long Gong Sheng-li Hu Zi-tian Fan 

机构地区：[1]State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China [2]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《China Foundry》2024年第5期461-475,共15页中国铸造（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.52275334,52205361,51075163,and 50575085).

摘　　要：Inorganic binder used in casting process has the advantages of low odor,labor-friendly conditions,and relatively low cost,which is one of the main development directions for casting molding materials in the future.However,compared to organic binders(such as resin binders),inorganic binders exhibit lower bonding strength and are more sensitive to environmental humidity.This sensitivity poses challenges,particularly in the reclamation of used sand,thus limiting their broader application.In this paper,the research and application status of inorganic binders(mainly silicate inorganic binders)and their curing methods are summarized.In addition,the research and application of phosphate inorganic binders and 3D printing inorganic binders that are being developed are introduced.Meanwhile,a detailed comparative analysis is conducted on the challenging issue of“reclamation for used sand”in the application of inorganic binders.Finally,the development direction of inorganic binders is clarified.

关 键 词：inorganic binder silicate system phosphate system 3D printing used sand reclamation development trend 

分 类 号：TG221[金属学及工艺—铸造]