TY - GEN
T1 - Studies on the solid conveying process in micro injection molding machine
AU - Xu, Yan
AU - Yung, Kai Leung
AU - Ng, Hai Pang
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Understanding the solid conveying process is important for the optimal design of micro injection molding machines. To solve problems such as starve feeding and process instability during plastication of polymers, which deteriorate product qualities, studies have been carried out on the conveying process of discrete polymer pellets. The effect of screw axis inclination on the speed of solid conveying is investigated with both simulation and experimental approaches. A discrete element modeling method (DEM) specially designed for simulating polymer particle movements in screw channels, which takes into account the effect of gravity while maintaining the simplicity of calculations, has been developed. The agreements between results of simulations and experiments verify the integrity of the models developed herein. The proposed modeling method is capable of optimizing the design of plasticizers of micro injection molding machines.
AB - Understanding the solid conveying process is important for the optimal design of micro injection molding machines. To solve problems such as starve feeding and process instability during plastication of polymers, which deteriorate product qualities, studies have been carried out on the conveying process of discrete polymer pellets. The effect of screw axis inclination on the speed of solid conveying is investigated with both simulation and experimental approaches. A discrete element modeling method (DEM) specially designed for simulating polymer particle movements in screw channels, which takes into account the effect of gravity while maintaining the simplicity of calculations, has been developed. The agreements between results of simulations and experiments verify the integrity of the models developed herein. The proposed modeling method is capable of optimizing the design of plasticizers of micro injection molding machines.
KW - Discrete element modeling
KW - Micro injection molding
KW - Solid conveying
UR - http://www.scopus.com/inward/record.url?scp=38949137132&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
SN - 0878494219
SN - 9780878494217
T3 - Materials Science Forum
SP - 620
EP - 623
BT - Advances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
T2 - 12th International Manufacturing Conference in China, IMCC2006
Y2 - 21 September 2006 through 23 September 2006
ER -