Invention Grant
- Patent Title: Extrusion-molding machine, extrusion-molding method, and method for manufacturing honeycomb structured body
- Patent Title (中): 挤出成型机，挤出成型法和蜂窝结构体的制造方法
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Application No.: US11696976Application Date: 2007-04-05
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Publication No.: US08124002B2Publication Date: 2012-02-28
- Inventor: Norihiko Yamamura , Kazuya Naruse , Eiji Sumiya , Kosei Tajima
- Applicant: Norihiko Yamamura , Kazuya Naruse , Eiji Sumiya , Kosei Tajima
- Applicant Address: JP Ogaki-shi
- Assignee: Ibiden Co., Ltd.
- Current Assignee: Ibiden Co., Ltd.
- Current Assignee Address: JP Ogaki-shi
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: WOPCT/JP2006/007867 20060413
- Main IPC: B28B3/22
- IPC: B28B3/22
Abstract:
An extrusion-molding machine according to the present invention comprises: a screw having a blade portion for extruding a molding material, the screw disposed in a tightly-closed space; and a die for molding an extruded molding material, wherein the space is maintained in a reduced-pressure atmosphere, and a high-hardness coat layer is formed at least on the blade portion.
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