Debinding and sintering of warm compacted and binder-treated complex iron-base part  

作　　者：倪东惠 周水波 肖志瑜 李元元 

机构地区：[1]Guangdong Key Laboratory for Advanced Metallic Materials Fabrication and Forming,School of Mechanical Engineering,South China University of Technology

出　　处：《中国有色金属学会会刊：英文版》2007年第A02期589-593,共5页Transactions of Nonferrous Metals Society of China

基　　金：Projects(50574041, 50325516) supported by the National Natural Science Foundation of China;projects(2006Z1-D6081, 06105411) supported by Guangdong Science and Technology;project (NCET-05-0739) supported by NCET

摘　　要：Regular elemental powders were used in warm flow compaction instead of the expensive micron-sized powders to fabricate cross-shaped parts. Debinding behaviors,sintering properties and shape consistency of the sintered parts were studied. Binder removal was accomplished by heating green compacts at intermediate temperatures with optimal heating rates until the debinding temperature was reached. Results show that by controlling debinding process,complex parts with good shape consistence can be obtained by warm compaction of binder-treated powder. Fine and shiny surface was obtained and no surface defect can be observed for sintered parts debinded at 2 ℃/min,while defect can be observed in sintered parts debinded at 4 ℃/min.Regular elemental powders were used in warm flow compaction instead of the expensive micron-sized powders to fabricate cross-shaped parts. Debinding behaviors, sintering properties and shape consistency of the sintered parts were studied. Binder removal was accomplished by heating green compacts at intermediate temperatures with optimal heating rates until the debinding temperature was reached. Results show that by controlling debinding process, complex parts with good shape consistence can be obtained by warm compaction of binder-treated powder. Fine and shiny surface was obtained and no surface defect can be observed for sintered parts debinded at 2 ℃/min, while defect can be observed in sintered parts debinded at 4 ℃/min.

关 键 词：热压成型 分离 粘合剂 粉末冶金 

分 类 号：TG174[金属学及工艺—金属表面处理]