中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 5 October 2000 |
Rheological properties of feedstocks for powder extrusion molding①
（State Key Laboratory for Powder Metallurgy, Powder Metallurgy Research Institute,
Central South University, Changsha 410083, P.R.China）
Abstract:The rheological behaviors of feedstocks for powder extrusion molding, in the temperature range of 40~ 80℃and the Newton shear rate.γof 3~800 s-1, were studied. The effects of feedstock constitution, shear rate and temperature on apparent viscosity, shear stress and active energy were investigated. The viscose-flow active energy of PEM feedstocks is 15.89~90.77 kJ/mol. Based on this research, the PEM technical parameters have optimized.
Key words: powder extrusion molding; feedstock; rheological property; apparent viscosity
