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1. WO2020138273 - PURE COPPER POWDER HAVING Si COATING, METHOD FOR PRODUCING SAME, AND ADDITIVE MANUFACTURING MODEL USING PURE COPPER POWDER

Publication Number WO/2020/138273
Publication Date 02.07.2020
International Application No. PCT/JP2019/051092
International Filing Date 26.12.2019
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 1/02 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
02comprising coating of the powder
B22F 3/105 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
105by using electric current, laser radiation or plasma
B22F 3/16 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
16in successive or repeated steps
B33Y 10/00 2015.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 70/00 2020.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
70Materials specially adapted for additive manufacturing
CPC
B22F 1/00
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
B22F 1/0003
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
B22F 1/0062
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
0062Powders coated with organic material
B22F 1/02
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
02comprising coating of the powder
B22F 1/025
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
02comprising coating of the powder
025Metallic coating
B22F 10/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
Applicants
  • JX金属株式会社 JX NIPPON MINING & METALS CORPORATION [JP]/[JP]
Inventors
  • 渡邊 裕文 WATANABE Hirofumi
  • 山本 浩由 YAMAMOTO Hiroyoshi
  • 澁谷 義孝 SHIBUYA Yoshitaka
Agents
  • 小越 一輝 OGOSHI Kazuteru
  • 小越 勇 OGOSHI Isamu
Priority Data
2018-24493327.12.2018JP
2019-16238905.09.2019JP
2019-20337908.11.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PURE COPPER POWDER HAVING Si COATING, METHOD FOR PRODUCING SAME, AND ADDITIVE MANUFACTURING MODEL USING PURE COPPER POWDER
(FR) POUDRE DE CUIVRE PUR AYANT UN REVÊTEMENT DE Si, SON PROCÉDÉ DE PRODUCTION, ET MODÈLE DE FABRICATION ADDITIVE UTILISANT DE LA POUDRE DE CUIVRE PUR
(JA) Siの被膜を有する純銅粉及びその製造方法並びに該純銅粉を用いた積層造形物
Abstract
(EN)
A pure copper powder having an Si coating formed thereon, said pure copper powder being characterized in that the adhesion quantity of Si is 5 ppm to 200 ppm by weight, the adhesion quantity of C is at least 15 ppm by weight, and the weight ratio of C/Si is not more than 3. The present invention addresses the problem of providing: a pure copper powder having an Si coating formed thereon, in which partial sintering of the pure copper powder due to preheating is suppressed in selective laser sintering using an electron beam (EB) system, and a reduction in the degree of vacuum during sintering due to carbon (C) is suppressed; a method for producing the pure copper powder, and an additive manufacturing model that uses the pure copper powder.
(FR)
La présente invention concerne une poudre de cuivre pur sur laquelle est formé un revêtement de Si, ladite poudre de cuivre pur étant caractérisée en ce que la quantité d'adhérence de Si est de 5 ppm à 200 ppm en poids, la quantité d'adhérence de C est d'au moins 15 ppm en poids, et le rapport en poids de C/Si n'est pas supérieur à 3. La présente invention aborde le problème consistant à fournir : une poudre de cuivre pur sur laquelle est formé un revêtement de Si, où un frittage partiel de la poudre de cuivre pur dû au préchauffage est supprimé dans un frittage laser sélectif à l'aide d'un système de faisceau d'électrons (EB), et une réduction du degré de vide pendant le frittage due au carbone (C) est supprimée; un procédé de production de la poudre de cuivre pur, et un modèle de fabrication additive qui utilise la poudre de cuivre pur.
(JA)
Siの被膜が形成された純銅粉であって、Si付着量が5wtppm以上200wtppm以下、C付着量が15wtppm以上、重量比率C/Siが3以下であることを特徴とする純銅粉。本発明は、電子ビーム(EB)方式による積層造形において、純銅粉の予備加熱による部分焼結を抑制すると共に、造形時において、炭素(C)による造形時の真空度の低下を抑制することができる、Siの被膜が形成された純銅粉及びその製造方法並びに該純銅粉を用いた積層造形物を提供することを課題とする。
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