Title:
ISOSTAT FOR PROCESSING MATERIALS AND METHOD FOR REMOVING CERAMIC MATERIAL FROM METALLIC ARTICLES BY USING SAID ISOSTAT
Document Type and Number:
WIPO Patent Application WO/2005/051578
Kind Code:
A1
Abstract:
The invention relates to powder metallurgy, in particular to devices and methods for processing materials in a chemically active medium at high pressures and temperatures and can be used for dissolving ceramic materials and for the structural transformations thereof. The inventive isostat for material processing consists of a tight container which is connected to gas supply means and comprises an induction heater and a working chamber having the open top end face and embodied in the form of a double-wall receptacle whose bottom is disposed between the walls thereof. Said isostat is provided with a heat-insulating chamber whose wall is arranged in the interwall space. The inventive method consists in heating the aqueous alkali liquor in the reaction chamber of the isostat until the liquid component thereof passes into a fluid state, in lowering the liquid medium level, condensing the part of the vapours thereof in such a way that a liquid shutter is formed and in heating to a final temperature. Heating and cooling are periodically repeated until the ceramic material is completely removed from the metallic article.
Inventors:
Snop, Vladimir Isakovich (ul. Zoi i Alexandra Kosmodemyanskikh, 4-177 Moscow, 5, 17112, RU)
Application Number:
PCT/RU2004/000462
Publication Date:
June 09, 2005
Filing Date:
November 23, 2004
Export Citation:
Assignee:
Obshchestvo I, Ogranichennoy Otvetstvennostyu 'AVTOKLAVY Vysokogo Davlenia Temperatury' S. (ul. Podiemnaya, 14-44-4 Moscow, 2, 10905, RU)
International Classes:
B22F3/14; B01J3/04; B30B11/00; B30B12/00; C22B7/00; (IPC1-7): B22F3/14; B22D29/00; B30B12/00
Attorney, Agent or Firm:
Grunina, Alla Yefimovna (G-165, a/ya 15 Moscow, 5, 12116, RU)
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