US 12,440,893 B2
Method for powder pressing at least two press parts and powder pressing device
Michael Silbermann, Bichl (DE); Christian Müller, Großweil (DE); and Johannes Bader, Ohlstadt (DE)
Assigned to DORST Technologies GmbH & Co. KG, Kochel am See (DE)
Appl. No. 17/310,684
Filed by DORST Technologies GmbH & Co. KG, Kochel am See (DE)
PCT Filed Feb. 11, 2020, PCT No. PCT/EP2020/053415
§ 371(c)(1), (2) Date Aug. 17, 2021,
PCT Pub. No. WO2020/169403, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 10 2019 104 041.8 (DE), filed on Feb. 18, 2019.
Prior Publication US 2022/0072609 A1, Mar. 10, 2022
Int. Cl. B22F 3/00 (2021.01); B22F 3/03 (2006.01); B28B 3/08 (2006.01); B28B 17/00 (2006.01); B30B 11/02 (2006.01); B30B 15/30 (2006.01)
CPC B22F 3/004 (2013.01) [B22F 3/03 (2013.01); B28B 3/083 (2013.01); B28B 17/0072 (2013.01); B30B 11/02 (2013.01); B30B 15/304 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for powder pressing at least two pressed parts, wherein the pressed parts are ceramic powder pressed parts and/or metal powder pressed parts, the method comprising:
filling a first powder for pressing a first pressed part into a first cavity of a die with a first filling level, and
filling a second powder for pressing a second pressed part into a second cavity of the die with a second filling level,
wherein the first and second filling levels are individually adjusted,
wherein the first powder is filled via a first filling shoe, and the second powder is filled via a second filling shoe, and
wherein the first and second filling shoe are configured to move temporarily non-simultaneously such that the first filling shoe is already removed from the first cavity while the second filling shoe still remains above the second cavity.