Mixing rotor and internal mixer
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United States of America Patent
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-
May 19, 2015
Grant Date -
Dec 18, 2014
app pub date -
Jan 22, 2013
filing date -
Jan 31, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mixing rotor includes: a rotor shaft portion that includes a cooling passageway formed therein, and a mixing blade portion that is formed in an outer circumferential portion of the rotor shaft portion, wherein each of the long blades of the mixing blade portion includes a land portion as an end surface of the long blade facing a radially outside of the mixing rotor, a length of each of the long blades in the axis direction is set to be 0.6 times or more as large as a length of the mixing blade portion in the axis direction, a biting angle of each of the long blades is set to an angle equal to or smaller than 31°, and a center angle with respect to a land width as a width of the land portion in the cross-section of each of the long blades orthogonal to the axis direction is set to an angle equal to or larger than 7°.
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