METHOD OF TUNGSTEN BLANKS RECEIVING Russian patent published in 2009 - IPC B22F3/12 

Abstract RU 2361697 C2

FIELD: metallurgy.

SUBSTANCE: into initial charge from tungsten of grade BA it is add 11-13 wt % of superfine tungsten powder with medium particle size 0.04-0.06 mcm. From received charge there are compressed long-measuring rectangular or square blanks with compacting force 305-350 MPa and sintering is implemented.

EFFECT: density increasing of received blanks and increasing of yield ensured by delamination removing.

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RU 2 361 697 C2

Authors

Barkov Leonid Andreevich

Mymrin Sergej Aleksandrovich

Chaplygin Boris Aleksandrovich

Dates

2009-07-20Published

2007-09-14Filed