METHOD OF PRODUCING METAL POWDER WITH REDUCED OXYGEN CONTENT Russian patent published in 2011 - IPC B22F1/00 B22F3/12 

Abstract RU 2414327 C2

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy. Container with getter filled with metal powder is sealed and evacuated. Container is subjected to thermal treatment in gaseous hydrogen to allow hydrogen diffusion inside container through its walls to create equilibrium partial pressure on both sides of the wall. Hydrogen interacts with powder oxygen to remove the latter from powder into getter. Then, inert atmosphere or vacuum is created around the container to allow hydrogen diffusion therefrom.

EFFECT: compacted material with controlled content of oxygen, high mechanical properties.

10 cl, 1 dwg, 5 tbl, 3 ex

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RU 2 414 327 C2

Authors

Berglund Roger

Ehriksson Khans

Sundstem Jokhan

Arvidsson Per

Dates

2011-03-20Published

2005-10-06Filed