Back to results
US 10,245,640 B2Granted
Device and a method for consolidation of powder materials
AssigneeGenicore Spolka Z Ograniczona Odpowiedzialnoscia
InventorMarcin Rosinski
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeGenicore Spolka Z Ograniczona Odpowiedzialnoscia
InventorMarcin Rosinski
Estimating the term…
The object of the invention is a device intended for powder materials consolidation, provided with an operating chamber, press connected to high-current discharge electrodes top and bottom, with arranged therebetween the sintered powder subjected to the pressure exerted by the press. To the top and bottom electrode there is connected a capacitive circuit with a power supply unit, closed by a high-current switch being a transistor switch. The object of the invention is also a method of powder materials consolidation in the device according to the invention, wherein the powder material is subjected to simultaneous operation of pressure in the range of 1-200 MPa and consolidation by electric current pulses with intensity of 1-80 kA, repeated with frequency from the range of 0.1 Hz to 100 Hz, generated by opening and closing the transistor switch.
A method of powder materials consolidation, comprising locating a sintered powder in a die between two electrodes connected to press exerting pressure thereon, applying voltage to the electrodes through a capacitive circuit with a power supply unit closed by a high-current switch, subjecting the sintered powder to simultaneous operation of pressure in the range of 1-200 MPa and consolidation by pulses of electric current with an intensity of 1-80 kA, repeated with frequency of 0.1 Hz to 100 Hz, generated by opening and closing a high-current transistor switch connected in series to the sintered powder and discharging a battery of capacitors in a capacitive circuit charged to the voltage of 0.5-15 kV with rectangular pulses of electric current.
Dependencies are inferred from the claim text.