PREPARATION METHOD OF DOPED COMPONENTS FOR MANUFACTURING OF TUNGSTEN WIRE Russian patent published in 2009 - IPC H01K1/08 B22F1/02 

Abstract RU 2361315 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to non-ferrous metallurgy and can be used at receiving of tungsten powder for preparation of tungsten wire. It is received alkaline silica- potassium basis by means of dissolution of silicic acid in potassium hydroxide at correlation "Ж:Т"=5.5-6.0 and boiling temperature. Received pulp is dissolved by water and neutralised by portions of hydrochloric acid up to pH=3-4 at intensive mixing up to coagulation of silicon compound. Into received basis there are introduced alloying elements.

EFFECT: it is provided simplification and acceleration of technology, reduction of material and labour expenditures.

1 tbl, 1 dwg

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Authors

Kolmakov Anatolij Aleksandrovich

Dovzhenko Nikolaj Nikolaevich

Kolmakova Anna Anatol'Evna

Gurskaja Vladislava Jur'Evna

Dates

2009-07-10Published

2008-05-23Filed