Title:
METHOD FOR CARBURIZING TANTALUM CONTAINER
Document Type and Number:
WIPO Patent Application WO/2012/073547
Kind Code:
A1
Abstract:
Provided is a method for carburizing a tantalum container, whereby it becomes possible to control the thickness of carburization at each part of the tantalum container readily and it also becomes possible to carburize the tantalum container in an even thickness.
A carburization method for impregnating a tantalum container (1) composed of tantalum or a tantalum alloy with carbon comprises a step of supporting the tantalum container (1) by support members (5, 6) provided in a chamber (3) to place the tantalum container (1) in the chamber (3) and a step of reducing the pressure in the chamber (3) and heating the inside of the chamber (3), and is characterized in that a carbon source is provided in the vicinity of a part that cannot be carburized readily.
Inventors:
WATANABE MASANARI (JP)
ABE YOSHIHISA (JP)
ABE YOSHIHISA (JP)
Application Number:
PCT/JP2011/065486
Publication Date:
June 07, 2012
Filing Date:
July 06, 2011
Export Citation:
Assignee:
TOYO TANSO CO (JP)
WATANABE MASANARI (JP)
ABE YOSHIHISA (JP)
WATANABE MASANARI (JP)
ABE YOSHIHISA (JP)
International Classes:
C23C8/64
Foreign References:
| JP2010163302A | 2010-07-29 | |||
| JP2005068002A | 2005-03-17 | |||
| JP2009242854A | 2009-10-22 | |||
| JP2008016691A | 2008-01-24 | |||
| JP2005068002A | 2005-03-17 | |||
| JP2008081362A | 2008-04-10 |
Other References:
See also references of EP 2647736A4
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
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Claims: