公开(公告)号：US10260123B2

公开(公告)日：2019-04-16

申请号：US15322360

申请日：2015-07-03

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Hiromasa Takada ,  Shinya Teramoto ,  Osamu Ohyama

IPC: C21D9/00 ,  B21B1/16 ,  B22D11/00 ,  C21D7/13 ,  C21D8/00 ,  C21D8/02 ,  C21D8/06 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/28 ,  C22C38/60

Abstract: A rolled steel bar for machine structural use includes a predetermined chemical composition comprising, by mass %, C: 0.45% to 0.65%, Si: higher than 1.00% to 1.50%, Mn: higher than 0.40% to 1.00%, P: 0.005% to 0.050%, S: 0.020% to 0.100%, V: 0.08% to 0.20%, Ti: 0% to 0.050%; Ca: 0% to 0.0030%, Zr: 0% to 0.0030%, Te: 0% to 0.0030%, and a remainder including Fe and impurities, wherein the impurities include: Cr: 0.10% or lower, Al: lower than 0.01%, and N: 0.0060% or lower. In the rolled steel bar for machine structural use, K1 obtained from “K1=C+Si/7+Mn/5+1.54×V” is 0.95 to 1.05, K2 obtained from “K2=139−28.6×Si+105×Mn−833×S−13420×N” is more than 35, K3 obtained from “K3=137×C−44.0×Si” is 10.7 or more, a Mn content and a S content satisfy Mn/S≥8.0, and a total decarburized depth in a surface layer is 500 μm or less.

公开(公告)号：US20190099804A1

公开(公告)日：2019-04-04

申请号：US15721628

申请日：2017-09-29

Applicant: FISHER CONTROLS INTERNATIONAL LLC

Inventor： Steven K. Hostetter ,  Thomas N. Gabriel

IPC: B22D11/00 ,  B22D19/08 ,  F16K25/00 ,  F16K1/46

Abstract: A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

公开(公告)号：US10202665B2

公开(公告)日：2019-02-12

申请号：US15304540

申请日：2015-04-22

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Masayuki Hashimura ,  Junya Yamamoto ,  Kazumi Mizukami ,  Naotsugu Yoshida ,  Masafumi Miyazaki ,  Kenichiro Miyamoto

IPC: C21D9/02 ,  C21C7/04 ,  C21C7/06 ,  C21C7/10 ,  B22D11/00 ,  B22D11/124 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/42 ,  C22C38/46 ,  C22C38/50 ,  C22C38/54 ,  C22C38/60 ,  B22D11/115 ,  C22C38/00

Abstract: A spring steel according to the present embodiment has a chemical composition consisting of, in mass %, C: 0.4 to 0.7%, Si: 1.1 to 3.0%, Mn: 0.3 to 1.5%, P: 0.03% or less, S: 0.05% or less, Al: 0.01 to 0.05%, rare earth metal: 0.0001 to 0.002%, N: 0.015%, O or less: 0.0030% or less, Ti: 0.02 to 0.1%, with the balance being Fe and impurities. In the spring steel, the number of oxide inclusions having an equivalent circular diameter of equal to or greater than 5 μm is equal to or less than 0.2/mm2, the oxide inclusions each being one of an Al-based oxide, a complex oxide containing REM, O and Al, and a complex oxysulfide containing REM, O, S, and Al. Further, a maximum value among equivalent circular diameters of the oxide inclusions is equal to or less than 40 μm.

公开(公告)号：US10197109B2

公开(公告)日：2019-02-05

申请号：US15585560

申请日：2017-05-03

Applicant: Nisshin Steel Co., Ltd.

Inventor： Satoshi Tagashira ,  Masahito Suzuki ,  Tomohiro Imanaka

IPC: C21D8/02 ,  C21D9/00 ,  C21D9/32 ,  C21D9/46 ,  B21D53/88 ,  B22D11/00 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/26 ,  C22C38/28 ,  C22C38/54 ,  F16D13/64 ,  F16D13/72 ,  F16D13/74

Abstract: A separator plate for use as a clutch plate for a multiplate wet clutch is formed of a steel plate. The steel plate has a chemical composition containing, on a basis of percent by mass, C from 0.03 to 0.08%, Si from 0 to 1.0%, Mn from 0.2 to 0.8%, P at 0.03% or less, S at 0.01% or less, and Al at 0.05% or less, so as to satisfy a formula, 5*C %−Si %+Mn %−1.5*Al %

公开(公告)号：US10190187B2

公开(公告)日：2019-01-29

申请号：US15097039

申请日：2016-04-12

Applicant: ArcelorMittal

Inventor： Antoine Moulin ,  Veronique Sardoy ,  Catherine Vinci ,  Gloria Restrepo Gacess ,  Tom Watershoot ,  Mohamed Goune

IPC: C21D9/46 ,  C21D8/02 ,  C23C2/06 ,  C23C2/28 ,  C22C38/04 ,  C23C2/02 ,  B22D7/00 ,  B22D11/00 ,  C21D1/84 ,  C21D6/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/36

Abstract: The present invention provides a cold-rolled and annealed Dual-Phase steel sheet having strength from 980 to 1100 MPa and a breaking elongation greater than 9%. The composition includes the contents being expressed by weight: 0.055%≤C≤0.095%, 2%≤Mn≤2.6%, 0.005%≤Si≤0.35%, S≤0.005%, P≤0.050%, 0.1≤Al≤0.3%, 0.05%≤Mo≤0.25%, 0.2%≤Cr≤0.5%, Cr+2Mo≤0.6%, Ni≤0.1%, 0.010≤Nb≤0.040%, 0.010≤Ti≤0.050%, 0.0005≤B≤0.0025%, and 0.002%≤N≤0.007%. The remainder of the composition includes iron and inevitable impurities resulting from the smelting. A manufacturing method is also provided.

公开(公告)号：US10179363B2

公开(公告)日：2019-01-15

申请号：US14431570

申请日：2013-09-27

Applicant: Outokumpu Nirosta GmbH

Inventor： Wilfried Klos ,  Johann Wilhelm Schmitz ,  Gerhard Gräf ,  Markus Daamen

IPC: B22D11/06 ,  B22D11/00 ,  B22D25/02

Abstract: A method for producing a cast strip of molten metal, in which the molten metal passes through a casting gap defined by two oppositely rotating casting rollers and is shaped into the cast strip, as well as the cast strip that is produced. By providing the cast strip in the casting gap with a different thickness in a first length section extending in the longitudinal direction of the cast strip than in a second length section bordering thereon, a metal strip is produced that has length sections with different thicknesses.

公开(公告)号：US10161462B2

公开(公告)日：2018-12-25

申请号：US14765060

申请日：2014-01-23

Applicant: Nisshin Steel Co., Ltd.

Inventor： Satoshi Tagashira ,  Masahito Suzuki ,  Tomohiro Imanaka

IPC: C22C38/28 ,  F16D13/64 ,  C22C38/14 ,  C22C38/54 ,  C21D8/02 ,  C21D9/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/26 ,  B21D53/88 ,  B22D11/00 ,  C21D9/32 ,  C22C33/04 ,  C21D9/46 ,  F16D13/72 ,  F16D13/74

Abstract: A clutch plate for a multiplate wet clutch having favorable fatigue strength is provided.A separator plate (1) for use as a clutch plate for a multiplate wet clutch is formed of a steel plate. The steel plate has a chemical composition containing, on a basis of percent by mass, C from 0.03 to 0.08%, Si from 0 to 1.0%, Mn from 0.2 to 0.8%, P at 0.03% or less, S at 0.01% or less, and Al at 0.05% or less, so as to satisfy a formula, 5*C %−Si %+Mn %−1.5*Al %

公开(公告)号：US20180340244A1

公开(公告)日：2018-11-29

申请号：US15989447

申请日：2018-05-25

Applicant: Novelis Inc.

Inventor： Sazol Kumar Das ,  Rajeev G. Kamat ,  Milan Felberbaum

IPC: C22C21/08 ,  B22D11/00 ,  B22D11/049 ,  C22F1/047

Abstract: The present disclosure generally provides 6xxx series aluminum alloys and methods of making the same, such as through casting and rolling. The disclosure also provides products made from such alloys. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, aerospace, and industrial applications, among others.

公开(公告)号：US10131970B2

公开(公告)日：2018-11-20

申请号：US11974522

申请日：2007-10-12

Applicant: Anders Oskarsson ,  Hans-Erik Ekström ,  Richard Westergård ,  Stian Tangen

Inventor： Anders Oskarsson ,  Hans-Erik Ekström ,  Richard Westergård ,  Stian Tangen

IPC: C22C21/16 ,  C22F1/04 ,  C22C21/00 ,  B22D11/00 ,  B23K35/02 ,  B32B15/01 ,  F28F21/08 ,  B23K101/14 ,  B23K35/28

Abstract: The present invention provides a method for producing AlMn strip or sheet for making components by brazing, as well as the products obtained by said method. In particular this method is related to fin materials used in heat exchangers. The fins can be delivered with or without a cladding depending on application.Rolling slabs are produced from a melt which contains 0.3-1.5% Si, ≤0.5% Fe, ≤0.3% Cu, 1.0-2.0% Mn, ≤0.5% Mg, ≤4.0% Zn, ≤0.3% each of elements from group IVb, Vb, or VIb elements, and unavoidable impurity elements, as well as aluminum as the remainder in which the rolling slabs prior to hot rolling are preheated at a preheating temperature of less than 550° C., preferably between 400 and 520° C., more preferably between 450 and 520° C. to control the number and size of dispersoid particles, and the preheated rolling slab is hot rolled into a hot strip. The strip is thereafter cold rolled into a strip with a total reduction of at least 90%, and the cold rolled strip is heat treated to obtain a 0.2% proof stress value that is 50-90% of its proof stress value in the as cold rolled condition to a proof stress value in the range between 100 and 200 MPa. The strip may alternatively be produced by twin-roll strip casting.The composition of the melt tailors the microstructure development during the complete processing to give the desired post braze properties and performance during brazing in combination with adequate delivery properties of the strip. In particular the high post braze strength combined with a good sagging resistance and low susceptibility to liquid core penetration during brazing, as well as a relatively good formability in the delivery condition prior to fin forming.

公开(公告)号：US10096394B2

公开(公告)日：2018-10-09

申请号：US15597753

申请日：2017-05-17

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  FURUKAWA AUTOMOTIVE SYSTEMS INC.

Inventor： Shigeki Sekiya ,  Sho Yoshida ,  Kengo Mitose

IPC: H01B1/02 ,  C22C21/08 ,  C22C21/02 ,  C22F1/047 ,  C22F1/043 ,  B22D11/00 ,  B21C1/02 ,  B60R16/02 ,  H01B13/00 ,  H01B13/012 ,  H01R4/18

Abstract: An aluminum alloy wire rod having a composition including Mg: 0.10-1.00 mass %, Si: 0.10-1.00 mass %, Fe: 0.01-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Sn: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, wherein a ratio of (standard deviation of crystal grain size of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is less than or equal to 0.57, and a ratio of (diameter of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is greater than or equal to 10.