Extruder and method for extruding cord reinforced tire components
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United States of America Patent
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Oct 27, 2020
Grant Date -
Feb 15, 2018
app pub date -
Jan 6, 2016
filing date -
Mar 13, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is an extruder and a method for extruding cord reinforced tire components, wherein the extruder has an extruder head with a die and a cord guide. The die is provided with a cross sectional profile that defines a first cross section of the extrusion material in the die, wherein the cross sectional profile has a profile height. The cord guide is arranged for guiding the cords into the die at a cord entry height. The extruder head is provided with first heating elements. The extruder has a control unit that is operationally connected to the first heating elements for generating an adjustable height temperature gradient in the extrusion material across the profile height to control swelling of the extrusion material relative to the cord entry height from the first cross section to a second cross section after the extrusion material leaves the die.
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