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公开(公告)号：US20240082911A1
公开(公告)日：2024-03-14
申请号：US18271999
申请日：2021-11-26
Applicant: Toho Titanium Co., Ltd.
Inventor： Shougo Tsumagari
CPC classification number: B22F3/11 , B22F3/1007 , B22F2201/10 , B22F2301/205 , B22F2998/10
Abstract: Provided is a method for manufacturing a porous metal body, which can manufacture a porous metal body with a suppressed variation in thickness in spite of using a molding plate having a relatively thin thickness multiple times. The method for manufacturing a porous metal body includes a plurality of steps including: a depositing step of depositing metal powder in a dry process onto a molding plate 100 made of carbon, the molding plate 100 having a thickness of 30 mm or less and an area of a surface for depositing the metal powder of 36 cm2 or more; after the depositing step, a sintering step of sintering the metal powder on the molding plate 100, wherein the plurality of steps are performed using the same molding plate 100, and wherein at least one step of the plurality of steps further includes, between the depositing step and the sintering step, a thickness adjusting step of adjusting a thickness of a deposited layer of the metal powder on the molding plate 100 while flattening the surface 105 of the molding plate 100.
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公开(公告)号：US20230311205A1
公开(公告)日：2023-10-05
申请号：US18019709
申请日：2021-08-17
Applicant: Toho Titanium Co., Ltd.
Inventor： Yosuke Inoue , Shougo Tsumagari
CPC classification number: B22F3/11 , B22F1/052 , C22C1/08 , B22F2301/205 , B22F2304/10
Abstract: The titanium-based porous body according to the present invention is in a form of a sheet and contains titanium, and the titanium-based porous body has a thickness of 0.8 mm or less, a porosity of 30% to 65%, a maximum height Rz1 of one sheet surface of 30 µm or less, a ratio of a maximum height Rz2 of other sheet surface to the maximum height Rz1 of the one sheet surface (Rz2/Rz1) of 1.2 or more, and a compression deformation rate of 19% or less.
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公开(公告)号：US11975388B2
公开(公告)日：2024-05-07
申请号：US18019709
申请日：2021-08-17
Applicant: Toho Titanium Co., Ltd.
Inventor： Yosuke Inoue , Shougo Tsumagari
CPC classification number: B22F3/11 , B22F1/052 , C22C1/08 , B22F2301/205 , B22F2304/10
Abstract: The titanium-based porous body according to the present invention is in a form of a sheet and contains titanium, and the titanium-based porous body has a thickness of 0.8 mm or less, a porosity of 30% to 65%, a maximum height Rz1 of one sheet surface of 30 μm or less, a ratio of a maximum height Rz2 of other sheet surface to the maximum height Rz1 of the one sheet surface (Rz2/Rz1) of 1.2 or more, and a compression deformation rate of 19% or less.
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公开(公告)号：US20230374627A1
公开(公告)日：2023-11-23
申请号：US18029943
申请日：2021-09-16
Applicant: Toho Titanium Co., Ltd. , Toyota Jidosha Kabushiki Kaisha
Inventor： Shougo Tsumagari , Yosuke Inoue , Hiroyuki Kawai
CPC classification number: C22C1/0458 , C22C14/00
Abstract: A method for manufacturing a porous metal body according to the present invention is a method for manufacturing a sheet-shaped porous metal body 4a containing titanium by sintering a titanium-containing powder 4 by heating it on a forming surface 2 of a forming die 1, the method including: an area setting step of setting, on the forming surface 2 of the forming die 1, an adhesion area Aa where it is located on an outer edge side of the forming surface 2 and the titanium-containing powder 4 adheres during sintering without a releasing layer 3, and an easily releasable area Ar where a releasing layer 3 is formed; after the area setting step, a powder deposition step of depositing the titanium-containing powder 4 in a dry process on the forming surface 2; and after the powder deposition step, a powder sintering step of sintering the titanium-containing powder 4 on the forming surface 2 while heating the titanium-containing powder 4 at a temperature of 950° C. or more on the forming surface 2 and allowing the titanium-containing powder 4 located on the adhesion area Aa to adhere to the adhesion area Aa.
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