C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/012 (2006.01) C03B 17/02 (2006.01) B29C 47/00 (2006.01)
Patent
CA 2051208
An extruding apparatus having at least two indepen- dent inlet ports, one outlet port communicating with the inlet ports, and at least two passages connecting the inlet ports with the outlet port, in which a section of a joint portion of the passages has a central portion and an outer peripheral portion which are concentrically arranged, is prepared. A core material is supplied to one of the passages communicating with the central por- tion of the joint portion from a corresponding inlet port, and a cladding material is supplied to the other passage communicating with the outer peripheral portion from a corresponding inlet port, thereby causing the two materials to join each other at the joint portion. An integral shaped body having a portion corresponding to a core at its central portion and a portion corresponding to a cladding around the central portion is extruded from the outlet port. Water and a binder and other impurities are removed from the shaped body, and the resultant body is consolidated.
Hihara Hiroshi
Morikawa Takayuki
Satoh Tsuguo
Yagi Takeshi
Yoshida Kazuaki
Ridout & Maybee Llp
The Furukawa Electric Co. Ltd.
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