粉体颗粒群粒度分布分形维与流动性及流动助剂影响关系研究_胡小芳.pdfVIP

第25 卷 第2期 总第106期 Vol 1 2 5 No 1 2 Journal of Materials Science Engineering Apr . 200 7 :1673-2812(2007) 02-0205-06 1, 2 1 , ( 1. , 510640 ; 2. , 510640) = , , , , , , = ; ; ; T B321 A Correlation of Particle Size Di tribution Fractal Dimen ion with Powder Fluidity and Flow Addition Reagent Action Effect HU Xiao-fang1, 2 , HU Da-wei1 ( 1. Powder Laboratory of Indu trial Equipment and Control Engineering School; 2. Key Laboratory of Polymer Proce ing Engineering, Mini try of Education, South China Univer ity of Technology, Guangzhou 510640, China) = Ab tract Particle size distribution fractal dim ension can denote pow ders. size distribution w ell, and also holds an important significance to denote pow ders. fluidity. Through established the m athematical model w hich is prop itious to the digital micrographic image analysis, w e used the im age analysis technique to gain the particle size distribution fractal dimension, and then discussed the relationship betw een the pow ders. flow ability parameters and the particle size distribution fractal dimensions . It aff irm ed that the fractal dimensions can denote the fluidity of the pow der well . It f ormed a new method which could measure powders. flu idity compact and reliable. The research work also made a prim ary research on the effect of the flow addition reagent to pow ders. fluidity, gained the fractal dim ensions also could guide the adulteration of the flow addition reagent . = Key word size