Effect of thermo-mechanical properties of PIM feedstock on compacts shape retention during debinding process

作     者：K.A.Khalil 黄伯云 李益民 

作者机构：State Key Laboratory for Powder Metallurgy Central South University 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2001年第11卷第4期

页      面：521-524页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project ( 5 0 0 44 0 12 )supportedbytheNationalNaturalScienceFoundationofChina 

主　　题：thermo mechanical properties shape retention debinding thermal stresses 

摘      要：The removal of the binder from the powder compacts (debinding) can be a slow step and a source of problems. To improve the debinding process of powder injection molding operation, it’s necessary to understand the thermal and mechanical properties of powder injection molding feedstocks and to find the major causes responsible for molding difficulties and compacts shape retention during debinding process. The effects of thermo mechanical properties of the PIM feedstock on the compacts shape retention during debinding process were discussed and explained from practical point of view. The results indicate that the heat of fusion affects the cooling time. The binder component with high heat of fusion and high decomposed temperature is more effective as the second binder component for the compact to retain its shape during debinding.