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Patent Searching and Data


Title:
DIE, MANUFACTURING METHOD FOR DIE, EXTRUDER, AND MANUFACTURING METHOD FOR PELLET
Document Type and Number:
WIPO Patent Application WO/2021/079413
Kind Code:
A1
Abstract:
the present invention improves the performance of a die. An injection hole IH, a nozzle NZa, and a nozzle NZb are formed In a center member DIa of a die DI, from an extrusion surface ES to an injection surface IS. Additionally, a heat source HT and a plurality of heat insulation layers HI1 are provided inside the center member DIa. A portion of the plurality of heat insulation layers HI1 is adjacent to the nozzle NZb and is also positioned more to the extrusion surface ES side than the heat source HT. Another portion of the plurality of heat insulation layers HI1 extends in a direction from the extrusion surface ES toward the injection surface IS, at a position separated more from the nozzle NZb than from the heat source HT.

Inventors:
MATSUDA, Soichiro (11-1, Osaki 1-chome, Shinagawa-k, Tokyo 32, JP)
KAWANO, Hiroyuki (11-1, Osaki 1-chome, Shinagawa-k, Tokyo 32, JP)
HASHIMOTO, Tomonori (11-1, Osaki 1-chome, Shinagawa-k, Tokyo 32, JP)
YAMABE, Fumiya (11-1, Osaki 1-chome, Shinagawa-k, Tokyo 32, JP)
UEDA, Naoki (11-1, Osaki 1-chome, Shinagawa-k, Tokyo 32, JP)
Application Number:
JP2019/041373
Publication Date:
April 29, 2021
Filing Date:
October 21, 2019
Export Citation:
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Assignee:
THE JAPAN STEEL WORKS, LTD. (Osaki 1-chome Shinagawa-k, Tokyo 32, JP)
International Classes:
B22F3/105; B22F3/16; B29B9/06; B29C48/05; B29C48/86; B29C48/88
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (3-10 Shinjuku 2-chome, Shinjuku-k, Tokyo 22, JP)
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