Title:
DEVICE AND METHOD OF INJECTING METAL
Document Type and Number:
WIPO Patent Application WO/2004/087352
Kind Code:
A1
Abstract:
A metal injection device has a discharge nozzle (31) for discharging molten metal (20) and a gas flow passage (33) for feeding an inert gas around a discharge opening (32) of the discharge nozzle (31). A nozzle cover (34) is provided at the exit of the discharge opening (32) and that of the gas flow passage (33). The nozzle cover (34) has a space (35) communicating with the exits of the discharge opening (32) and the gas flow passage (33) and opening downward. At the periphery of the opening is a ring-like projection (36). In injecting the molten metal (20) from the discharge opening (32) into the space (35), feeding the inert gas to the space (35) prevents oxidation of the metal (20) and nozzle clogging in the discharge opening (32), and can make the shape of the metal (20) spherical.
Inventors:
YAMAGUCHI KATSUMI (JP)
NAKAMURA HIROSHI (JP)
NAKAMURA HIROSHI (JP)
Application Number:
PCT/JP2004/004399
Publication Date:
October 14, 2004
Filing Date:
March 29, 2004
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
YAMAGUCHI KATSUMI (JP)
NAKAMURA HIROSHI (JP)
YAMAGUCHI KATSUMI (JP)
NAKAMURA HIROSHI (JP)
International Classes:
B22F9/08; (IPC1-7): B22D23/00; B22F3/115; B22F9/08; B29C67/00
Foreign References:
| JPH0688202A | 1994-03-29 | |||
| JP2001293551A | 2001-10-23 | |||
| JPS59118805A | 1984-07-09 | |||
| JPH10244355A | 1998-09-14 |
Attorney, Agent or Firm:
Shimizu, Yoshihiro (Yashiro Building 14-4, Takadanobaba 2-chom, Shinjuku-ku Tokyo, JP)
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