Title:
EXTRUSION DIE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/002474
Kind Code:
A1
Abstract:
An extrusion die device provided with a die holder (5) having a support hole (9) and also with a die assembly (10) contained in the support hole (9). The die assembly (10) comprises: a male die (OD) which is provided with a core member (15) having a protrusion section (15b) and also with a core case (13) for holding the core member (15); a female die (MD) which is provided with a body (11) engaged with the support hole (9) and having an engagement groove section (24) engaging with the core case (13) of the male die (OD), and which is also provided with an annular nested member (12) contained in a portion near a material supply section of the body (11); and a plate-like cap member (16) which is disposed at a position closer to the material supply section than the male die (OD), the plate-like cap member (16) covering a part of the core member (15) and being connected to the core case (13). The space between the nested member (12) and the core member (15) serves as a die hole (10A) through which an extrusion material is caused to pass.
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Inventors:
HASEGAWA Nobuyuki (85, Hiramatsu, Susono-sh, Shizuoka 27, 〒4101127, JP)
長谷川 伸幸 (〒27 静岡県裾野市平松８５番地 三菱アルミニウム株式会社内 Shizuoka, 〒4101127, JP)
長谷川 伸幸 (〒27 静岡県裾野市平松８５番地 三菱アルミニウム株式会社内 Shizuoka, 〒4101127, JP)
Application Number:
JP2011/064999
Publication Date:
January 05, 2012
Filing Date:
June 30, 2011
Export Citation:
Assignee:
Mitsubishi Aluminum Co., Ltd. (3-3 Shiba 2-chome, Minato-ku Tokyo, 46, 〒1058546, JP)
三菱アルミニウム株式会社 (〒46 東京都港区芝２丁目３番３号 Tokyo, 〒1058546, JP)
HASEGAWA Nobuyuki (85, Hiramatsu, Susono-sh, Shizuoka 27, 〒4101127, JP)
三菱アルミニウム株式会社 (〒46 東京都港区芝２丁目３番３号 Tokyo, 〒1058546, JP)
HASEGAWA Nobuyuki (85, Hiramatsu, Susono-sh, Shizuoka 27, 〒4101127, JP)
International Classes:
B21C25/02
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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Claims:
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