EP 4259335 A1 20231018 - METHOD FOR GRINDING POWDERS, METHOD FOR COATING A MATERIAL, METAL PARTICLES, COATED MATERIAL, AND USES OF THESE
Title (en)
METHOD FOR GRINDING POWDERS, METHOD FOR COATING A MATERIAL, METAL PARTICLES, COATED MATERIAL, AND USES OF THESE
Title (de)
VERFAHREN ZUM MAHLEN VON PULVERN, VERFAHREN ZUM BESCHICHTEN EINES MATERIALS, METALLPARTIKEL, BESCHICHTETES MATERIAL UND VERWENDUNGEN DAVON
Title (fr)
PROCÉDÉ DE BROYAGE DE POUDRES, PROCÉDÉ DE REVÊTEMENT D'UN MATÉRIAU, PARTICULES MÉTALLIQUES, MATÉRIAU REVÊTU ET LEURS UTILISATIONS
Publication
Application
Priority
- FR 2013001 A 20201210
- FR 2021052244 W 20211208
Abstract (en)
[origin: WO2022123178A1] The invention relates to a method for the cryogenic grinding of at least one powder, comprising the following steps: (a) introducing a cryogenic fluid into an attrition mill comprising attrition means, (b) introducing the powder or powders into the attrition mill, and (c) setting the attrition mill into rotational movement, and wherein - the ratio VMA / (VMA + VFC) of the volume of the attrition means VMA to the sum of the volume of the attrition means VMA and the volume of the cryogenic fluid VFC is comprised between 0.2 and 0.8, and - the rotational speed of the attrition mill, during step (c), is comprised between 100 rpm and 20 000 rpm. The invention also relates to particles of metal or metal alloy, to the use thereof, to a coating method employing them and to the use of such a coated material.
IPC 8 full level
B02C 17/10 (2006.01); B02C 17/18 (2006.01); B02C 17/20 (2006.01); B02C 19/18 (2006.01); B32B 15/04 (2006.01)
CPC (source: EP US)
B02C 17/10 (2013.01 - EP US); B02C 17/186 (2013.01 - EP US); B02C 17/205 (2013.01 - EP US); B02C 19/186 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022123178 A1 20220616; EP 4259335 A1 20231018; FR 3117485 A1 20220617; FR 3117485 B1 20230414; JP 2024500092 A 20240104; US 2024042453 A1 20240208
DOCDB simple family (application)
FR 2021052244 W 20211208; EP 21847992 A 20211208; FR 2013001 A 20201210; JP 2023535435 A 20211208; US 202118256795 A 20211208