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1. WO2020198658 - SYSTEMS AND METHODS FOR INJECTION MOLDING OF NANOCRYSTALLINE METAL POWDERS

Publication Number WO/2020/198658
Publication Date 01.10.2020
International Application No. PCT/US2020/025417
International Filing Date 27.03.2020
IPC
B22F 1/00 2006.01
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 3/10 2006.01
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
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10Sintering only
B22F 3/15 2006.01
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
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12Both compacting and sintering
14simultaneously
15Hot isostatic pressing
B22F 3/22 2006.01
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
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
22for producing castings from a slip
CPC
B22F 1/0044
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
0044Nanometer size structures
B22F 1/0059
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
0059Metallic powders mixed with a lubricating or binding agent or organic material
B22F 2001/0066
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
0059Metallic powders mixed with a lubricating or binding agent or organic material
0066Organic binder comprising a mixture or obtained by reaction of more than one component other than solvent, lubricant
B22F 3/1021
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
1017Multiple heating or additional steps
1021Removal of binder or filler
B22F 3/1025
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
1017Multiple heating or additional steps
1021Removal of binder or filler
1025not by heating only
B22F 3/15
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
12Both compacting and sintering
14simultaneously
15Hot isostatic pressing
Applicants
  • VELOXINT CORPORATION [US]/[US]
Inventors
  • LUND, Alan C.
  • HOLLAND, Troy
  • JORGENSEN, Luke Eastman
Agents
  • WESTON, Scott B.
  • HILTON, Ramsey Mitchell
Priority Data
62/825,61128.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR INJECTION MOLDING OF NANOCRYSTALLINE METAL POWDERS
(FR) SYSTÈMES ET PROCÉDÉS DE MOULAGE PAR INJECTION DE POUDRES MÉTALLIQUES NANOCRISTALLINES
Abstract
(EN)
Embodiments described herein relate generally to systems and methods for using nanocrystalline metal alloy particles or powders to create nanocrystalline and/or microcrystalline metal alloy articles using a nanocrystalline metal injection molding (NMIM) process. In some embodiments, a method for manufacturing a metal article using NMIM includes mixing a plurality of nanocrystalline metal particles with a binder to form a molding feedstock,, transferring the molding feedstock to a mold to form a molded structure, debinding the molded structure, and sintering the molded structure to form a metal alloy article, the metal alloy article having a relative density of at least about 90 %. In some embodiments, the molding feedstock can include less than about 55 vol% of the nanocrystalline metal particles.
(FR)
La présente invention concerne de manière générale, selon des modes de réalisation, des systèmes et des procédés destinés à l’utilisation de particules ou poudres d'alliage métallique nanocristallin pour créer des articles en alliage métallique nanocristallin et/ou microcristallin à l'aide d’un processus de moulage par injection de métal nanocristallin (NMIM). Dans certains modes de réalisation, un procédé de fabrication d'un article métallique à l'aide du NMIM comprend le mélange d'une pluralité de particules métalliques nanocristallines avec un liant pour former une charge de départ de moulage, le transfert de la charge de départ de moulage dans un moule pour former une structure moulée, le déliement de la structure moulée, et le frittage de la structure moulée pour former un article en alliage métallique, l'article en alliage métallique ayant une densité relative d'au moins environ 90 %. Dans certains modes de réalisation, la charge de départ de moulage peut comprendre moins d'environ 55 % en volume des particules métalliques nanocristallines.
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