Title:
LANCE PIPE
Document Type and Number:
WIPO Patent Application WO/2010/143536
Kind Code:
A1
Abstract:
Provided is a lance pipe that can be used economically. The lance pipe (1) introduces a injection gas into molten aluminum, and is characterized in that the tip of a gas introduction pipe (2) is provided with a detachable porous tip section (3) and the material strength of the gas introduction pipe (2) is greater than that of the porous tip section (3) by a factor of 20 to 500. Preferably, the gas introduction pipe (2) and the porous tip section (3) are provided with and joined together with a screwing thread section (4).
Inventors:
TSUYAMA TATSUMI (JP)
MAEHARA SHUSAKU (JP)
MAEHARA SHUSAKU (JP)
Application Number:
PCT/JP2010/058906
Publication Date:
December 16, 2010
Filing Date:
May 26, 2010
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
TSUYAMA TATSUMI (JP)
MAEHARA SHUSAKU (JP)
TSUYAMA TATSUMI (JP)
MAEHARA SHUSAKU (JP)
International Classes:
C22B21/06; B22D1/00; C04B38/00; C22B9/05; F27D3/16
Foreign References:
| JPS6386825A | 1988-04-18 | |||
| JPS6197161A | 1986-05-15 | |||
| JPH05302131A | 1993-11-16 | |||
| JP2000345249A | 2000-12-12 |
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
Patent business corporation Takeuchi and an Ichizawa international patent firm (JP)
Patent business corporation Takeuchi and an Ichizawa international patent firm (JP)
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