公开(公告)号：US20240287661A1

公开(公告)日：2024-08-29

申请号：US18418729

申请日：2024-01-22

申请人： DAIDO STEEL CO., LTD.

发明人： Akihiko Saito ,  Syouai Hashimoto ,  Tetsuya Yamashita

IPC分类号： C22C38/08 ,  C21D8/12 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

CPC分类号： C22C38/08 ,  C21D8/1233 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： The present invention relates to a soft magnetic material including: in tens of mass %, 47%≤Ni≤49%; 0.4%≤Mn≤0.7%; 0.1%≤Si≤0.3%; and 0.01%≤Al≤0.04%, with the balance being Fe and unavoidable impurities, in which a region having a crystal orientation within 10° from a orientation occupies 20% or more on a surface of the soft magnetic material.

公开(公告)号：US20240141459A1

公开(公告)日：2024-05-02

申请号：US18384185

申请日：2023-10-26

申请人： DAIDO STEEL CO., LTD.

发明人： Chihiro FURUSHO ,  Yoshihiko KOYANAGI ,  Indranil ROY

IPC分类号： C22C19/05 ,  C21D9/00 ,  C22C1/02 ,  C22F1/10

CPC分类号： C22C19/053 ,  C21D9/0068 ,  C22C1/023 ,  C22F1/10 ,  C21D2211/001

摘要： A Ni-based alloy consisting of, in terms of mass %: 0.10%

公开(公告)号：US20240136731A1

公开(公告)日：2024-04-25

申请号：US18381766

申请日：2023-10-18

申请人： DAIDO STEEL CO., LTD.

发明人： Akihiko SAITO

IPC分类号： H01Q17/00 ,  H05K9/00

CPC分类号： H01Q17/007 ,  H05K9/0069 ,  H05K9/0081

摘要： An electromagnetic wave absorber evaluation apparatus including: a housing in which the electromagnetic wave absorber is allowed to be arranged, the housing being made of a conductive material with inner dimensions of a width a, a height b, and a length L, as b

公开(公告)号：US11946124B2

公开(公告)日：2024-04-02

申请号：US17953945

申请日：2022-09-27

申请人： DAIDO STEEL CO., LTD.

发明人： Takashi Yoshimoto ,  Kosuke Tomiyama

IPC分类号： C22C38/12 ,  B33Y70/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/10

CPC分类号： C22C38/12 ,  B33Y70/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/105

摘要： An Fe-based alloy for melting-solidification shaping including, in mass %: 18.0≤Co

公开(公告)号：US20240033862A1

公开(公告)日：2024-02-01

申请号：US18265615

申请日：2021-12-06

申请人： DAIDO STEEL CO., LTD.

发明人： Masashi NAGAYA ,  Akio UENAKA ,  Hiroki HIRAI ,  Osamu HARA

IPC分类号： B23K35/30

CPC分类号： B23K35/3086

摘要： Provided is a ferrite-based stainless steel welding wire that has excellent oxidation resistance properties and high temperature strength. This ferrite-based stainless steel welding wire has a composition containing, in mass %, 0.001-0.050% of C, 0.01-2.00% of Si, 0.01-1.50% of Mn, 0.030% or less of P, 0.010% or less of S, 16.0-25.0% of Cr, 0.001-0.150% of Ti, 0.020% or less of O, and 0.05% or less of N, further containing at least one selected from 0.01-1.80% of Nb, 0.01-3.60% of Mo, and 0.01-3.60% of W, and satisfying formulae (1), (2), and (3), with a balance being Fe and unavoidable impurities. Formula (1): [Nb]+[Mo]+[W]+0.25[Si]≥2.2, formula (2): [Mo]+[W]≤3.6, formula (3): [Ti]+[Al]≤0.15, where [ ] in the formulae represents the content in mass % of the element indicated in [ ].

公开(公告)号：US20230398644A1

公开(公告)日：2023-12-14

申请号：US18206489

申请日：2023-06-06

申请人： DAIDO STEEL CO., LTD.

发明人： Masato UCHI ,  Masakazu YAMASHITA ,  Akio UENAKA ,  Osamu HARA

IPC分类号： B23K35/30 ,  C21D8/06 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/48

CPC分类号： B23K35/3086 ,  C21D8/065 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/48 ,  C21D2211/005

摘要： The present invention relates to a ferritic stainless steel welding wire, including, in terms of mass %: C: ≤0.050%; Si: ≤1.00%; Mn: 2.50% to 5.00%; P: ≤0.040%; S: ≤0.010%; Cu: ≤0.50%; Ni: 0.01% to 1.00%; Cr: 12.0% to 20.0%; Mo: ≤0.50%; Ti: 0.20% to 2.00%; Nb: 0.10% to 0.80%; Al: 0.020% to 0.200%; Mg: ≤0.020%; O: ≤0.020%; and N: 0.001% to 0.050%, with the balance being Fe and unavoidable impurities, and having a Ni equivalent represented by Equation (1) of 1.0 to 3.0, Ni equivalent=[Ni]+0.5×[Mn]+30×[C]+30×([N]−0.06) Equation (1), in Equation (1), [X] represents a content (mass %) of an element X, and relates to a welded part.

公开(公告)号：US11807921B2

公开(公告)日：2023-11-07

申请号：US17321293

申请日：2021-05-14

申请人： DAIDO STEEL CO., LTD.

发明人： Takashi Yoshimoto ,  Shinnosuke Yamada ,  Koichiro Inoue

IPC分类号： C22C33/02 ,  B33Y70/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46 ,  C22C38/58 ,  B22F1/06

CPC分类号： C22C33/0285 ,  B22F1/06 ,  B33Y70/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/46 ,  C22C38/58 ,  B22F2301/35 ,  Y10T428/12014

摘要： The present invention relates to a metal powder including 0.1≤C≤0.4 mass %, 0.005≤Si≤1.5 mass %, 0.3≤Mn≤8.0 mass %, 2.0≤Cr≤15.0 mass %, 2.0≤Ni≤10.0 mass %, 0.1≤Mo≤3.0 mass %, 0.1≤V≤2.0 mass %, 0.010≤N≤0.200 mass %, and 0.01≤Al≤4.0 mass %, with the balance being Fe and unavoidable impurities, and satisfying the following expression (1), 10

公开(公告)号：US11732331B2

公开(公告)日：2023-08-22

申请号：US17329985

申请日：2021-05-25

申请人： DAIDO STEEL CO., LTD.

发明人： Kenji Sugiyama ,  Masashi Nagaya ,  Yusuke Kusafuka ,  Yoshihiko Koyanagi ,  Hiroyuki Takabayashi

IPC分类号： C22C19/05 ,  C22C1/04 ,  C22F1/10 ,  B22F9/08

CPC分类号： C22C19/052 ,  B22F9/082 ,  C22C1/0433 ,  C22C19/05 ,  C22F1/10

摘要： The present invention relates to an Ni-based alloy which is excellent in terms of wear resistance and high-temperature corrosion resistance and which includes 0.3≤C≤1.0 mass %, 36.0≤Cr≤50.0 mass %, and 3.0≤Al≤7.0 mass %, with the balance being Ni and unavoidable impurities, and relates to an Ni-based alloy product made of the Ni-based alloy according to the present invention, and methods for producing the Ni-based alloy product.

公开(公告)号：US20230257861A1

公开(公告)日：2023-08-17

申请号：US18105212

申请日：2023-02-02

申请人： DAIDO STEEL CO., LTD.

发明人： Nobuyuki TAKAHASHI ,  Daisuke Kudo ,  Tomohiro Ando ,  Yoshikiko Koyanagi

IPC分类号： C22C38/58 ,  C22C38/44 ,  C22C38/46 ,  C22C38/54 ,  C22C38/00

CPC分类号： C22C38/58 ,  C22C38/44 ,  C22C38/46 ,  C22C38/54 ,  C22C38/002 ,  C22C38/001

摘要： The present disclosure relates to an austenitic stainless steel contains C≤0.10 mass %, Si≤0.50 mass %, 3.0≤Mn≤8.0 mass %, P≤0.30 mass %, S≤0.30 mass %, 7.0 Ni≤12.0 mass %, 18.0≤Cr≤28.0 mass %, 1.0≤Mo≤3.0 mass %, 0.03≤V≤0.50 mass %, 0.0003≤B≤0.0300 mass %, 0.0001≤Ca≤0.0300 mass %, 0.35≤N≤0.80 mass %, W≤2.0 mass %, Zr≤0.20 mass %, Cu≤0.5 mass %, Al≤0.10 mass %, and O≤0.050 mass %, with a balance being Fe and unavoidable impurities. The austenitic stainless steel has a number density of coarse alloy carbonitrides of 3×105 pieces/mm2 or less.

公开(公告)号：US20230175106A1

公开(公告)日：2023-06-08

申请号：US18076653

申请日：2022-12-07

申请人： Daido Steel Co., Ltd.

发明人： Hiromasa Okuda ,  Ryosuke Ohashi

IPC分类号： C22C38/50 ,  C22C38/02 ,  C22C38/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/42 ,  C22C38/48 ,  B21J1/06

CPC分类号： C22C38/50 ,  C22C38/02 ,  C22C38/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/06 ,  C22C38/42 ,  C22C38/48 ,  B21J1/06

摘要： The present invention relates to a steel material containing, in terms of mass %: 0.30%≤C≤0.45%, 0.10%≤Si≤1.00%, 0.60%≤Mn≤1.20%, 0.20%≤Cr≤0.70%, 0.30%≤V≤0.47%, Ti≤0.015%, P≤0.100%, and S≤0.080%, with the balance being Fe and inevitable impurities, and has a P0 value defined by P0=P0′×V/P1, satisfying P0≥0.30, here, P0′=Mn+0.49Cu+0.89Ni+0.40Cr−0.30Si, and P1=C+0.07Si+0.16Mn+0.61P+0.19Cu+0.17Ni+0.2Cr+V, in the formulae, each element symbol indicates a content of each element in units of mass %.