FIELD: powder metallurgy, namely pressing of powder materials at presence of liquid.
SUBSTANCE: method comprises steps of placing powder in press-mold including die, pressing and lower punches; at side of pressing punch introducing to powder volatile liquid in quantity consisting of 0.2 - 3 volumes of pore volume of pressed piece before and during pressing till termination of process; simultaneously with liquid introduction, performing evacuation at side of pressing punch. Method allows press non-plastic powders without plasticizing agents, simultaneously perform pressing and partial removal of plasticizing agent and impregnation. Press-mold includes die, upper and lower punches, device for supplying liquid, evacuation device arranged at side of lower punch.
EFFECT: possibility for extruding non-plastic powders.
7 cl, 3 dwg, 11 ex
| Title | Year | Author | Number |
|---|---|---|---|
| WAY OF WET PRESSING AND DEVICE FOR ITS REALIZING | 2006 |
|
RU2323803C1 |
| THE METHOD OF WET PRESSING AND THE EQUIPMENT FOR ITS IMPLEMENTATION (VARIANTS) | 2010 |
|
RU2442674C1 |
| POWDER MATERIAL PRESSING METHOD AND APPARATUS FOR PERFORMING THE SAME | 2004 |
|
RU2275274C1 |
| METHOD OF FORMING POWDER MATERIALS WITH LIOPHOBIC FLUID AND DEVICE TO THIS END | 2011 |
|
RU2476293C2 |
| PLASTICIZING AGENT REMOVING METHOD | 2004 |
|
RU2273547C1 |
| DEVICE FOR HYDROSTATIC COMPACTION OF POWDER MATERIALS | 0 |
|
SU1676753A1 |
| PRODUCTION OF SINTERED POROUS TUNGSTEN CARCASS | 2014 |
|
RU2569287C1 |
| METHOD FOR PRESSING OF POWDER MATERIALS IN STEEL PRESS MOULD | 2013 |
|
RU2538790C2 |
| METHOD OF PULSED PRESSING OF HARD POWDER MATERIALS AND DEVICE FOR ITS EMBODIMENT | 1994 |
|
RU2083328C1 |
| METHOD OF FORMING POWDER MATERIALS WITH LIOPHOBIC FLUID AND DEVICE TO THIS END | 2012 |
|
RU2482938C1 |
