文献类型：期刊文献

英文题名：Evaluation of powder tensile strength by compression, shear and fluidization modules of the powder rheometer

作者：Lu, Haifeng[1]; Cao, Jiakun[1]; Guo, Xiaolei[1]; Gong, Xin[1]; Luo, Cong[1]

机构：[1] Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, Shanghai, 200237, China

年份：2020

卷号：160

起止页码：1

外文期刊名：Chemical Engineering Research and Design

收录：EI(收录号：20202308801680)

语种：英文

外文关键词：Glass - Rheometers - Compression testing - Granular materials - Tensile strength

摘要：The properties of powder bed have always been an important research field of powder engineering. In this paper, with the help of FT4 powder rheometer, eight kinds of powder samples from different fields were used as experimental materials, and the bed tensile strengths of the powder were obtained by compression test, shear test and fluidization test. Although the physical properties of the eight materials are different, the three units show the same result trend. Taking the glass bead which meets the hypothesis of the Rumpf equation best as the object, its theoretical tensile strength was calculated. Later, tensile strengths of the glass bead obtained from three experimental methods were compared to its theoretical value to evaluate the accuracy of each test methods. Finally, based on a combination of advantages of the compression test and the fluidization test, a fitting equation was established, providing a simple and time-saving method to obtain the tensile strength of the bed accurately. ? 2020 Institution of Chemical Engineers