公开(公告)号：US20210016352A1

公开(公告)日：2021-01-21

申请号：US17040672

申请日：2019-03-18

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Yasuhiko Goto ,  Shogo Tsumagari ,  Takahiro Fuji

IPC: B22F3/11 ,  B22F1/00 ,  B22F3/16 ,  C22C1/08 ,  C22C14/00 ,  H01M4/04 ,  H01M4/134

Abstract: A porous titanium-based sintered body, having a porosity of 45% to 65%, an average pore diameter of 5 μm to 15 μm, and a bending strength of 100 MPa or more. According to the present invention, a porous titanium-based sintered body having good pore diameter and porosity that are compatible with each other and having a high strength can be provided.

公开(公告)号：US11554415B2

公开(公告)日：2023-01-17

申请号：US17040672

申请日：2019-03-18

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Yasuhiko Goto ,  Shogo Tsumagari ,  Takahiro Fuji

IPC: B22F3/11 ,  B22F3/16 ,  C22C1/08 ,  C22C14/00 ,  H01M4/04 ,  H01M4/134 ,  B22F1/05 ,  B22F1/065

Abstract: A porous titanium-based sintered body, having a porosity of 45% to 65%, an average pore diameter of 5 μm to 15 μm, and a bending strength of 100 MPa or more. According to the present invention, a porous titanium-based sintered body having good pore diameter and porosity that are compatible with each other and having a high strength can be provided.

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：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：US20210114099A1

公开(公告)日：2021-04-22

申请号：US16981905

申请日：2019-03-13

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Yasuhiko Goto ,  Shogo Tsumagari ,  Takahiro Fuji

IPC: B22F3/11

Abstract: A porous titanium-based sintered body, having a porosity of 50% to 75%, an average pore diameter of 23 μm to 45 μm, and a specific surface area of 0.020 m2/g to 0.065 m2/g, and having a bending strength of 22 MPa or more. According to the present invention, a porous titanium-based sintered body having a high porosity, a large specific surface area and a large average pore diameter and thereby having good gas permeability or liquid permeability, and further having a high strength can be provided.