Title:
METHOD FOR PRODUCING PLATINUM GROUP METAL OR PLATINUM GROUP-BASED ALLOY
Document Type and Number:
WIPO Patent Application WO/2016/038974
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a molten ingot of a platinum group metal or a platinum group-based alloy each having a high material yield by preventing the occurrence of a scattering phenomenon upon heating/melting in a process for producing the platinum group metal or the platinum group-based alloy. A method for producing a platinum group metal or a platinum group-based alloy according to the present invention comprises: a compounding step of weighing a raw material which has a partially or wholly powdery form and, when the alloy is to be produced, then mixing the weighed raw material to produce a powder mix; a molding step of molding and solidifying the weighed raw material to produce molded materials; a sintering step of sintering the molded materials to produce sintered materials; a melting step of melting the sintered materials to produce a molten ingot; and a deformation processing step of processing the molten ingot. In the sintering step, the multiple molded materials are laminated and then sintered to produce a sintered body that is a bonded body.
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Inventors:
DOI YOSHINORI (JP)
EGAWA YASUNORI (JP)
KON DAISUKE (JP)
EGAWA YASUNORI (JP)
KON DAISUKE (JP)
Application Number:
PCT/JP2015/068098
Publication Date:
March 17, 2016
Filing Date:
June 23, 2015
Export Citation:
Assignee:
ISHIFUKU METAL IND (JP)
International Classes:
B22D11/00; B22D11/041; C22B9/22; C22B11/02
Foreign References:
| JP2002332528A | 2002-11-22 | |||
| JP2004137580A | 2004-05-13 |
Other References:
J. -M. OH ET AL.: "Preparation and Purity Evaluation of 5N-Grade Ruthenium by Electron Beam Melting", MATERIALS TRANSACTIONS, vol. 53, no. 9, pages 1680 - 1684
Attorney, Agent or Firm:
TOMITA, YOSHIMI (JP)
Kan Tomita (JP)
Kan Tomita (JP)
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