GASOSTATIC EXTRUDER Russian patent published in 2013 - IPC B22F3/15 

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy, particularly, to equipment for processing discrete or solid materials at combined or separate effects of gas pressure of up to 500 MPa and temperature of up to 2000°C developed inside working chamber of gasostatic extruder. Gasostatic extruder comprises load-bearing bed and container with plugs making its working chamber communicated via gas pipelines with gas system gate valves with increased ID. Every said valve is equipped with spring, needle, service drive with piston and lower cover, and cross-arm arranged at said needle. Unloading gas cylinder is communicated with sub valve chamber via internal through channel made in needle. Unloading gas cylinder may be self-aligned at needle without skew relative to valve body seat at servo drive cylinder by pressing against cylinder bottom by working pressure of gas fed under service drive piston.

EFFECT: faster pressure creation in container and gas evacuation at working cycle end.

7 cl, 2 dwg