PRESSING METHOD OF ELECTROTECHNICAL ITEMS FROM POWDER COMPOSITIONS BASED ON CARBON Russian patent published in 2015 - IPC B22F3/02 H01R39/18 

Abstract RU 2567083 C1

FIELD: metallurgy.

SUBSTANCE: preliminary hot pressing of powder composition at die speed 10÷12 mm/s with specific pressure 20÷30 MPa, and further holding at this pressure for 0.5÷1.5 minutes, and then hot pressing with specific pressure 50÷100 MPa is performed at pressing die speed 15÷30 mm/s.

EFFECT: increased density of produced items by increasing of volume of removed gases and liquid vapours from back filled powder composition in matrix of press mould.

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RU 2 567 083 C1

Authors

Samodurova Marina Nikolaevna

Barkov Leonid Andreevich

Dates

2015-10-27Published

2014-06-10Filed