公开(公告)号：US12090549B2

公开(公告)日：2024-09-17

申请号：US17794300

申请日：2020-12-15

Applicant: Toho Titanium Co., Ltd.

Inventor： Yosuke Inoue ,  Syogo Tsumagari ,  Yasuhiko Goto

IPC: B22F1/16 ,  B22F1/142 ,  B22F1/145 ,  B22F3/10 ,  B22F3/11 ,  B22F5/00 ,  C22C14/00

CPC classification number: B22F1/16 ,  B22F1/142 ,  B22F1/145 ,  B22F3/1007 ,  B22F3/11 ,  B22F5/006 ,  C22C14/00 ,  B22F2201/03 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2301/205 ,  B22F2302/25 ,  B22F2304/10 ,  B22F2999/00 ,  B22F1/145 ,  B22F2201/03 ,  B22F1/16

Abstract: A method for manufacturing a porous metal body according to the present invention includes: a surface oxidizing step of heating a titanium-containing powder in an atmosphere containing oxygen at a temperature of 250° C. or more for 30 minutes or more to provide a surface-oxidized powder; and a sintering step of depositing the surface-oxidized powder in a dry process, and sintering the surface-oxidized powder by heating it in a reduced pressure atmosphere or an inert atmosphere at a temperature of 950° C. or more.

公开(公告)号：US20230084462A1

公开(公告)日：2023-03-16

申请号：US17794300

申请日：2020-12-15

Applicant: Toho Titanium Co., Ltd.

Inventor： Yosuke Inoue ,  Syogo Tsumagari ,  Yasuhiko Goto

IPC: B22F3/11 ,  B22F5/00 ,  B22F1/142 ,  B22F3/10 ,  C22C14/00

Abstract: A method for manufacturing a porous metal body according to the present invention includes: a surface oxidizing step of heating a titanium-containing powder in an atmosphere containing oxygen at a temperature of 250° C. or more for 30 minutes or more to provide a surface-oxidized powder; and a sintering step of depositing the surface-oxidized powder in a dry process, and sintering the surface-oxidized powder by heating it in a reduced pressure atmosphere or an inert atmosphere at a temperature of 950° C. or more.

公开(公告)号：US11502305B2

公开(公告)日：2022-11-15

申请号：US16960230

申请日：2018-03-19

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Masashi Hayakawa ,  Syogo Tsumagari

IPC: B32B15/18 ,  H01M4/80 ,  B01D39/20 ,  B22F1/00 ,  B22F3/11 ,  H01M4/86

Abstract: To provide a titanium-based porous body that has high void fraction to ensure gas permeability and water permeability for practical use as an electrode and a filter, has a large specific surface area to ensure conductivity and sufficient reaction sites with a reaction solution or a reaction gas, thus showing excellent reaction efficiency, and contains less contaminants because of no organic substance used. A titanium-based porous body having a specific void fraction and a high specific surface area is obtained by filling an irregular-shaped titanium powder having an average particle size of 10 to 50 μm in a dry system without using any binder or the like into a thickness of 4.0×10−1 to 1.6 mm, and sintering the irregular-shaped titanium powder at 800 to 1100° C.