Dual Spiral Systems Home
Dual Spiral Systems Company Profile


Rafael J. Castillo,
John Vlachopoulos, Dept. of Chemical Engineering, McMaster University, Hamilton, Canada


     Experiments were performed using four different industrial sized extruder barrier screws extruding two different polyethylene resins, 0.3 MI LDPE and 1.0 MI LLDPE, at two speeds. The data collected from these experiments consist of readings of pressure along the axis of the screw, exiting pressure, melt temperature, and output. The extruder motor load, screw speed and barrel temperature settings were also recorded. A model published by Chung in 1997 was used to estimate the melting capacity of the extruder screws for each test performed. The Chung model was then applied to a methodology for designing barrier screws based on their melting capacity. The melting capacity of each screw was analyzed in a stage-wise fashion in order to determine how barrier geometry affected the amount of melt being produced.

Request complete copy of this paper
Dual Spiral Systems Products
Dual Spiral Systems Research
Dual Spiral Systems Downloads
Dual Spiral Systems News
Dual Spiral Systems Agents
Dual Spiral Systems Contact Information

Company Profile  |  Products  |  Research  |  Downloads  |  News  |  Agents   |  Contact Us |  Home