REFINER FILLING PIECE HAVING VARIABLY COATED BARS
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United States of America Patent
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Issued Date -
Dec 21, 2023
app pub date -
Aug 16, 2021
filing date -
Oct 22, 2020
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Abstract
Disclosed is a refiner filling piece for a refiner having a rotor that rotates about an axis of rotation and cooperates with a stator to mechanically treat a pulp containing cellulosic fibers. The refiner filling piece is mountable to the rotor or the stator. The refiner filling piece comprises a base and a plurality of spaced-apart refiner bars, each refiner bar being defined by a bar length and a bar height. At least some of the refiner bars have a surface coated with a variable coating. The surface having the variable coating may be the leading surface of the bar.
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