Mixing effects of constituting elements of mixing screws in single and twin screw extruders

Numerical study of the extrusion process in cereals production: Part I. Fluid-dynamic analysis of the extrusion system

“…According to several studies (Altomare & Ghossi, 1986;De Ruyck, 1997;Jager, 1992;van Zuilichem et al, 1999;Yeh, Hwang, & Guo, 1992), residence time depends on screw rotation velocity and mass flow rate, but this study demonstrates the interdependence between residence time and other parameters that influence the rheological properties, as Figs. 7-9 shows.…”

“…As a preliminary step, the experimental data reported by van Zuilichem, Kuiper, Stolp, and Jager (1999) were reproduced using the previously described model. The effects of the mixing elements geometry on mixing and RTD behavior were investigated, for a cereal flow of 27.77 g/s and a screw velocity of 80 rpm.…”

Influence of technological parameters extruder on the quality of polymer compositions

“…The dwell time of the polymer melt in the working gap is directly proportional to the disc radius, and is inversely proportional to the radial velocity Vr [4,5]:…”

Mixing of carbon nanotubes (CNTs) and aluminum powder for powder metallurgy use

“…The twin-screw mixer produced high shear forces to the mixture which facilitates the dispersive and distributive mixing. The work principles of the twin mixer have been discussed elsewhere [21][22][23].…”