Preparation and Analysis of Ceramic Paste Based on Extrusion Forming
Author of the article:SHANGGUAN Linjian;YANG Duo;SHI Weihua
Author's Workplace：College of Mechanical,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;Zhengzhou ROC Technology Co.,Ltd.,Zhengzhou 450045,China
Key Words：extrusion molding alumina ceramic paste viscosity
Abstract：
In order to realize the 3 D printing casting of ceramic paste to replace the traditional wax mold for shell making,orthogonal tests were conducted on three factors: solid phase content, pH value and dispersant. The rheological properties and optimal ratio of alumina paste were studied by viscosity measurement and analysis. The results show that dispersants have the greatest influence on paste viscosity, followed by pH value and the least influence on solid content. Aluminum oxide powder is used 51%, sodium citrate 0.5%, glycerin 4%, polyvinyl alcohol 2.25%, distilled water 42.25%, alkaline pH ratio scheme, paste rheology can be the best.
