The Influence of Initial Packing Density to the Flowability of Ceramic Powder under Extrusion

• Main Authors: Hsu, Chun-Nan, 許俊男
• Other Authors: Hsu, Ray-Quen
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/93219283234098645861

碩士 === 國立交通大學 === 機械工程研究所 === 86 === 　　One of the major differences between powder and solid is the compressibility. In the co-extrusion of ceramic powder/metal solid composite clad rod, the density of powder after extrusion is always one of the most important criterion of the quality of a product. The purpose of the research is to discuss the effect of the initial packing density on the powder density after vibration extrusion. 　　Before extrusion, powder core are divided to several initial packing densities. During extrusion process a vibration turbine vibrator is added on the die set in order to increase the powder density of the extruded product. 　　We found the densities of the product are closedly related to the initial packing density of the core and also affected by the frequence of the vibration.