Underwater pelletizing die plate
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United States of America Patent
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-
Oct 21, 1997
Grant Date -
N/A
app pub date -
Mar 28, 1996
filing date -
Apr 27, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an underwater pelletizing die plate or an extruder for the pelletizing of thermoplastics, the front face of the die plate, which is provided with a wearing protection layer and over which pass the pelletizing knives, being disposed under water, and heat isulation means being provided on the pelletizing die plate, good axial insulation is to be achieved, accompanied by uniform temperature distribution in the radial direction, it being provided to this end that an insulating layer is disposed between the external upper side of the actual pelletizing die plate and the wearing protection layer, the wearing protection layer being positioned, relative to the insulating layer, with radial play and without axial pressure or with little axial pressure, respectively.
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