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7. Static mixer
In this case, the mixing device is not integral with the screw and is inserted into the cylindrical channel of the connecting piece or adapter between the gear pump and the coextrusion box or die (see
Its essentially distributive operating mode is based on the repeated principle of flow splitting-recombining.
It is an excellent temperature homogenizer, reducing temperature variations in the melt.
Remember that temperature heterogeneities in the adapter are of several kinds:
those...
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Static mixer
Preform die
Bibliography
Software tools
Contour TM Die (EDI)
BEMflow, Boundary Element Fluid and Heat Transfer Simulation Program
Inverted preland Die (Cloeren)
Websites
Octal
Rauwendall
The Madison Group
Verbruggen...
Standards and norms
- Management environnemental. Exigences et lignes directrices pour son utilisation. - ISO 14000 - Nov. 2004
- Food safety management systems – Requirements for all organisms in the food chain. - NF EN ISO 22000 - Oct. 2005
Directory
Manufacturers – suppliers (non-exhaustive list)
Robert Barr, Inc.
HPM
Extrusion Dies Industry, LLC
Statistical and economic data
Figure 1 compares the performance of two equivalent systems in terms of instantaneous available flow:
1 production unit, 1,300 kg/h, investment value €1.5 M ;
2 production units...
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