FIELD: powder metallurgy, namely methods for pressing powder material at presence of liquid.
SUBSTANCE: method for pressing powder material comprises steps of introducing to powder volatile liquid and pressing powder; supplying liquid at side of pressing punch in quantity consisting of 2 - 3 volumes of pores of pressed blank. It is possible to perform pressing at simultaneous supply of liquid till termination of process. Method allows press non-plastic powders without plasticizer, partially remove plasticizer and perform impregnation. Press-mold includes die with upper portion having inner cavity, cavity for liquid and outer part. Apparatus for feeding liquid is in the form of cylinder with symmetrical through openings in walls and it includes piston for supplying liquid to inner cavity of die.
EFFECT: improved quality of articles.
7 cl, 11 dwg, 1 tbl, 8 ex
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