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1. EP3325196 - PLASMA ATOMIZATION METAL POWDER MANUFACTURING PROCESSES AND SYSTEMS THEREFORE

Office European Patent Office
Application Number 16826954
Application Date 06.07.2016
Publication Number 3325196
Publication Date 30.05.2018
Publication Kind B1
IPC
B22F 9/12
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02using physical processes
12starting from gaseous material
B22F 1/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B22F 9/08
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/14
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02using physical processes
14using electric discharge
C22C 1/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making non-ferrous alloys
04by powder metallurgy
CPC
B22F 1/0014
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0014by size mixtures or distribution
B22F 9/082
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
082atomising using a fluid
B22F 9/12
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
12starting from gaseous material
B22F 2009/0836
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
082atomising using a fluid
0836with electric or magnetic field or induction
B22F 2998/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2998Supplementary information concerning processes or compositions relating to powder metallurgy
B22F 9/08
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
Applicants AP&C ADVANCED POWDERS&COATINGS INC
Inventors LAROUCHE FRÉDÉRIC
BALMAYER MATTHIEU
TRUDEAU-LALONDE FRANCIS
Designated States
Priority Data 2016050786 06.07.2016 CA
201562193622 17.07.2015 US
201562251476 05.11.2015 US
Title
(DE) PLASMAZERSTÄUBUNGSMETALLPULVERHERSTELLUNGSVERFAHREN UND SYSTEME DAFÜR
(EN) PLASMA ATOMIZATION METAL POWDER MANUFACTURING PROCESSES AND SYSTEMS THEREFORE
(FR) PROCÉDÉS DE FABRICATION DE POUDRE MÉTALLIQUE PAR ATOMISATION AU PLASMA ET SYSTÈMES S'Y RAPPORTANT
Abstract
(EN)
A plasma atomization metal powder manufacturing process includes providing a heated metal source and contacting the heated metal source with the plasma of at least one plasma source under conditions effective for causing atomization of the heated metal source. The atomization may be carried out using a gas to metal ratio of less than about 20, thereby obtaining a raw metal powder having a 0-106 µm particle size distribution yield of at least 80%. The process may further include aligning the heated metal source with the plasma of at least one plasma source. An atomizing system may include an alignment system positioned upstream of the plasma source and adapted to adjust an orientation of the metal source relative to the at least one plasma source.

(FR)
L'invention concerne un procédé de fabrication de poudre métallique, par atomisation au plasma, qui comprend l'utilisation d'une source de métal chauffé et la mise en contact de la source de métal chauffé avec le plasma d'au moins une source de plasma dans des conditions efficaces pour provoquer l'atomisation de la source de métal chauffé. L'atomisation peut être effectuée à l'aide d'un rapport du gaz au métal inférieur à environ 20, ce qui permet d'obtenir une poudre métallique brute contenant au moins 80 % de particules dont la taille est de 0 à 106 µm. Le procédé peut en outre comprendre l'alignement de la source de métal chauffé sur le plasma d'au moins une source de plasma. L'invention concerne également un système d'atomisation pouvant comprendre un système d'alignement disposé en amont de la source de plasma et conçu pour ajuster une orientation de la source de métal par rapport à ladite ou auxdites sources de plasma.