The Influence of Lubricants on the Extrusion Ceramic Powder

• Main Authors: Sheng-Horng Shieh, 謝昇宏
• Other Authors: Ray-Quen Hsu
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/11965125086340141729

碩士 === 國立交通大學 === 機械工程系 === 87 === The aim of this research is to study the possibility of increasing the flowability of ceramic powder under extrusion . The flowability of powder during the extrusion process will not only affect the distribution of powder density after extrusion , but also the strength of product . In the experiment , we chose several different lubricants , mix these lubricant with the powder , then conduct a simple funnel experiment . The volume percent of the lubricant is taked as a parameter in the experiment . From funnel experiment results we select those combination of mixture conditions that have a faster dropping speed and then conduct the extrusion process . It is found that the lubricant can affect the flowability of the powder during extrusion , however , the quantity of the lubricant presented in the powder mixture is also critical to the extrusion process .