Extrusion die device
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United States of America Patent
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Sep 2, 2014
Grant Date -
May 2, 2013
app pub date -
Jun 30, 2011
filing date -
Jun 30, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An extrusion die device includes a die holder including a supporting hole and a die assembly accommodated in the supporting hole, wherein the die assembly includes a male die including a core member having a projected portion, a core case holding the core member, a female die including a body which includes an engagement groove engaging the core case of the male die, and which engages the supporting hole, and a nesting member formed in an annular shape and accommodated in the body at a portion close to a raw material supply part, and a cap member formed in a plate shape, disposed at a position closer to the raw material supply part than from the male die, covering a portion of the core member, and connected to the core case, and wherein a space between the nesting member and the core member is defined as a molding hole allowing the extrusion raw material to pass therethrough.
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