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1. WO2020111136 - METHOD FOR PRODUCING SINTERED BODY

Publication Number WO/2020/111136
Publication Date 04.06.2020
International Application No. PCT/JP2019/046413
International Filing Date 27.11.2019
IPC
B22F 3/02 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
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
02Compacting only
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
B29C 69/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
69Combinations of shaping techniques not provided for in a single one of main groups B29C39/-B29C67/135; Apparatus therefor
CPC
B22F 3/02
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
02Compacting only
B22F 3/10
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
B29C 69/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
69Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
Applicants
  • 川崎重工業株式会社 KAWASAKI JUKOGYO KABUSHIKI KAISHA [JP]/[JP]
Inventors
  • 日比野 真也 HIBINO, Shinya
  • 野村 嘉道 NOMURA, Yoshimichi
  • 岡田 竜太朗 OKADA, Ryutaro
  • 藤光 利茂 FUJIMITSU, Kazushige
Agents
  • 特許業務法人 有古特許事務所 PATENT CORPORATE BODY ARCO PATENT OFFICE
Priority Data
2018-22397629.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING SINTERED BODY
(FR) PROCÉDÉ DE PRODUCTION D'UN CORPS FRITTÉ
(JA) 焼結体の製造方法
Abstract
(EN)
A method for producing a sintered body comprises: a step for injection molding of a kneaded product of a powder and a binder to obtain an un-sintered body with an overhang part; a step for generating an intermediate sintered body by heating the un-sintered body with the overhang part protruding in a direction other than the vertical direction; a step for reversing the orientation of the force that is acting on the overhang part of the intermediate sintered body during generation of the intermediate sintered body; and a step for completing the sintering of the powder by heating the intermediate sintered body after reversing the orientation of the force that is acting on the overhang part of the intermediate sintered body during generation of the intermediate sintered body.
(FR)
L'invention concerne un procédé de production d'un corps fritté comprenant : une étape de moulage par injection d'un produit malaxé d'une poudre et d'un liant pour obtenir un corps non fritté ayant une partie en surplomb ; une étape de génération d'un corps fritté intermédiaire par chauffage du corps non fritté avec la partie en surplomb faisant saillie dans une direction autre que la direction verticale ; une étape d'inversion de l'orientation de la force qui agit sur la partie en surplomb du corps fritté intermédiaire pendant la génération du corps fritté intermédiaire ; et une étape d'achèvement du frittage de la poudre par chauffage du corps fritté intermédiaire après inversion de l'orientation de la force qui agit sur la partie en surplomb du corps fritté intermédiaire pendant la génération du corps fritté intermédiaire.
(JA)
粉末とバインダーとの混練物を射出成形し、オーバーハング部を有する未焼結体を得る工程;前記オーバーハング部が鉛直方向以外の方向に突出する状態で前記未焼結体を加熱して中間焼結体を生成する工程;前記中間焼結体のオーバーハング部にかかる力の向きを前記中間焼結体の生成時と逆にする工程;及び前記中間焼結体のオーバーハング部にかかる力の向きを前記中間焼結体の生成時と逆にした後、前記中間焼結体を加熱して前記粉末の焼結を完了する工程を含む、焼結体の製造方法。
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