公开(公告)号：US09714475B2

公开(公告)日：2017-07-25

申请号：US14382699

申请日：2013-03-04

Applicant: SEB S.A.

Inventor： Martin Rubio ,  Stephane Tuffe

IPC: A47J36/02 ,  A47J31/10 ,  C25D11/24 ,  C23C2/02 ,  B21C37/06 ,  C23C2/00 ,  A47J37/10 ,  A47J27/00 ,  C25D11/16 ,  B65D25/02 ,  B65D25/34

CPC classification number: C25D11/243 ,  A47J27/002 ,  A47J36/02 ,  A47J36/025 ,  A47J37/10 ,  A47J37/105 ,  B21C37/06 ,  B65D25/02 ,  B65D25/34 ,  C23C2/00 ,  C23C2/02 ,  C25D11/16

Abstract: Provided is a method for obtaining a cooking vessel comprising the following steps: producing a container having an aluminum outer face and an inner face, carrying out hard anodization of at least the outer face of the container. At least one coloring step is carried out on the anodized outer face following hard anodization, said coloring step employing at least one water-soluble anthraquinone organic dye. Also provided is a culinary article or an electric cooking appliance comprising a cooking vessel obtained by the above method.

公开(公告)号：US09708703B2

公开(公告)日：2017-07-18

申请号：US14369114

申请日：2012-12-27

Applicant: POSCO

Inventor： Sun-Ho Jeon ,  Kwang-Geun Chin

IPC: B32B15/00 ,  C23C2/02 ,  C23C2/06 ,  C22C38/04 ,  C22C38/58 ,  C23C2/26 ,  C23C2/28 ,  B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/50 ,  C22C38/54 ,  C21D6/00 ,  C21D8/02 ,  C22C38/34

CPC classification number: C23C2/02 ,  B32B15/013 ,  C21D1/76 ,  C21D6/005 ,  C21D8/0205 ,  C21D8/0263 ,  C21D8/0284 ,  C21D9/46 ,  C22C38/00 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  Y10T428/12799

Abstract: A high-manganese hot-rolled galvanized steel sheet having no surface defects and improved galvanizing and alloying characteristics is manufactured by using a high-manganese hot-rolled steel sheet. Provided are the high-manganese hot-rolled galvanized steel sheet and a method of manufacturing the high-manganese hot-rolled galvanized steel sheet. The high-manganese hot-rolled galvanized steel sheet includes: a hot-rolled steel sheet including 5 wt % to 35 wt % manganese; and a zinc coating layer formed on the hot-rolled steel sheet, wherein an internal oxide layer is formed in an internal region of the hot-rolled steel sheet facing the zinc coating layer.

公开(公告)号：US09708679B2

公开(公告)日：2017-07-18

申请号：US14348502

申请日：2012-09-28

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Hiroyuki Kawata ,  Naoki Maruyama ,  Akinobu Murasato ,  Akinobu Minami ,  Takeshi Yasui ,  Takuya Kuwayama ,  Hiroyuki Ban ,  Kaoru Hiramatsu

IPC: C23C2/02 ,  C21D8/02 ,  C23C2/06 ,  C23C2/28 ,  C21D9/46 ,  C22C18/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/58 ,  B32B15/01 ,  C22C38/02 ,  C22C38/04

CPC classification number: C21D8/0263 ,  B32B15/013 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0278 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/005 ,  C22C18/04 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  Y10T428/12799

Abstract: There is provided a high-strength hot-dip galvanized steel sheet and the like excellent in mechanical cutting property, which are capable of obtaining high ductility while ensuring high strength with maximum tensile strength of 900 MPa or more. The high-strength hot-dip galvanized steel sheet has a sheet thickness of 0.6 to 5.0 mm and has a plating layer on a surface of a steel sheet with component compositions being set in appropriate ranges, in which the steel sheet structure contains a 40 to 90% ferrite phase and a 3% or more retained austenite phase by volume fraction. In the retained austenite phase, a solid solution carbon amount is 0.70 to 1.00%, an average grain diameter is 2.0 μm or less, an average distance between grains is 0.1 to 5.0 μm, a thickness of a decarburized layer in a steel sheet surface layer portion is 0.01 to 10.0 μm, an average grain diameter of oxides contained in the steel, sheet surface layer portion is 30 to 120 nm and an average density thereof is 1.0×1012 oxides/m2 or more, and moreover, a work hardening coefficient (n value) during a 3 to 7% plastic deformation is 0.080 or more on average.

公开(公告)号：US20170191141A1

公开(公告)日：2017-07-06

申请号：US15462241

申请日：2017-03-17

Applicant: JFE Steel Corporation

Inventor： Hiroshi Matsuda ,  Tatsuya Nakagaito ,  Takayuki Futatsuka ,  Shusaku Takagi ,  Yasunobu Nagataki

IPC: C21D9/46 ,  C23F17/00 ,  C22C38/40 ,  C22C38/32 ,  C22C38/28 ,  C22C38/02 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/00 ,  C23C2/06 ,  C22C38/26

CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D2211/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/40 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23F17/00

Abstract: A high-strength hot-dip galvanized steel sheet excellent in formability includes, on the basis of mass percent, 0.05-0.3% C, 1.4% or less (including 0%) Si, 0.08%-3% Mn, 0.003-0.1% P, 0.07% or less S, 0.1-2.5% Al, 0.1-0.5% Cr, and 0.007% or less N, Si+Al≧0.5%, and the balance being Fe and incidental impurities, wherein the steel sheet has a retained austenite content of 3% or more by volume fraction, a stretch-flange formability λ>50% and wherein the average aspect ratio (major axis/minor axis) of retained austenite grains is less than 2.5.

公开(公告)号：US20170152580A1

公开(公告)日：2017-06-01

申请号：US15327489

申请日：2015-06-09

Applicant: JFE STEEL CORPORATION

Inventor： Hideyuki Kimura ,  Koichiro Fujita ,  Hiroshi Hasegawa ,  Mai Aoyama

IPC: C21D9/46 ,  B21B3/00 ,  C23C2/06 ,  C23C2/40 ,  C23G1/08 ,  C21D8/02 ,  C22C38/38 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B21B1/26

CPC classification number: C21D9/46 ,  B21B1/26 ,  B21B1/28 ,  B21B3/00 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C18/00 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C23G1/081 ,  C23G1/085

Abstract: A method for manufacturing a high-strength galvanized steel sheet includes performing hot rolling, cold rolling, first annealing, pickling, and second annealing. The first annealing is performed to obtain a steel sheet having a steel microstructure including ferrite in an amount of 10% or more and 60% or less in terms of area ratio, and martensite, bainite, and retained austenite in a total amount of 40% or more and 90% or less in terms of area ratio. The second annealing includes heating to an annealing temperature of 750° C. or higher and 850° C. or lower, holding at the annealing temperature for 10 seconds or more and 500 seconds or less, cooling at an average cooling rate of 1° C./s or more and 15° C./s or less, performing a galvanizing treatment, and cooling to a temperature of 150° C. or lower at an average cooling rate of 5° C./s or more and 100° C./s or less.

公开(公告)号：US09650708B2

公开(公告)日：2017-05-16

申请号：US14117711

申请日：2012-05-16

Applicant: Jens-Ulrik Becker ,  Jian Bian ,  Thomas Heller ,  Rudolf Schoenenberg ,  Richard G. Thiessen ,  Sabine Zeizinger ,  Thomas Rieger ,  Oliver Bulters

Inventor： Jens-Ulrik Becker ,  Jian Bian ,  Thomas Heller ,  Rudolf Schoenenberg ,  Richard G. Thiessen ,  Sabine Zeizinger ,  Thomas Rieger ,  Oliver Bulters

IPC: C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C21D9/00 ,  C21D1/18 ,  C21D1/22 ,  C23C2/02 ,  C21D1/19 ,  C21D1/78 ,  C21D8/02 ,  C21D8/04 ,  C22C38/00 ,  C22C38/14 ,  C22C38/12 ,  C21D6/00 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38

CPC classification number: C23C2/02 ,  C21D1/18 ,  C21D1/19 ,  C21D1/78 ,  C21D6/002 ,  C21D8/0247 ,  C21D8/0447 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  Y10T428/12799

Abstract: A flat steel product having a tensile strength of at least 1200 MPa and consists of steel containing (wt %) C: 0.10-0.50%, Si: 0.1-2.5%, Mn: 1.0-3.5%, Al: up to 2.5%, P: up to 0.020%, S: up to 0.003%, N: up to 0.02%, and optionally one or more of the elements “Cr, Mo, V, Ti, Nb, B and Ca” in the quantities: Cr: 0.1-0.5%, Mo: 0.1-0.3%, V: 0.01-0.1%, Ti: 0.001-0.15%, Nb: 0.02-0.05%, wherein Σ(V, Ti, Nb)≦0.2% for the sum of the quantities of V, Ti and Nb, B: 0.0005-0.005%, and Ca: up to 0.01% in addition to Fe and unavoidable impurities. The flat steel product has a microstructure with (in surface percent) less than 5% ferrite, less than 10% bainite, 5-70% untempered martensite, 5-30% residual austenite, and 25-80% tempered martensite, at least 99% of the iron carbide contained in the tempered martensite having a size of less than 500 nm.

公开(公告)号：US20170096724A1

公开(公告)日：2017-04-06

申请号：US15128559

申请日：2015-03-26

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Kazuo HIKIDA ,  Shinichiro TABATA ,  Nobusato KOJIMA ,  Takahiro MORIKI

IPC: C21D9/46 ,  C23C2/06 ,  B22D11/00 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C23C2/40 ,  C25D3/22

CPC classification number: C21D9/46 ,  B22D11/001 ,  C21D1/673 ,  C21D8/021 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D9/48 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/40 ,  C25D3/22

Abstract: A high-strength hot-formed steel sheet member exhibiting both a consistent hardness and delayed-fracture resistance, and is characterized in that: the high-strength hot-formed steel sheet member has a prescribed chemical composition; the degree of Mn segregation α (=[maximum Mn concentration (mass %) at the sheet center in the thickness direction]/[average Mn concentration (mass %) at a depth of ¼ of the total thickness of the sheet from the surface]) is less than or equal to 1.6; the steel purity value as defined in JIS G 0555 (2003) is less than or equal to 0.08%; the average grain size for prior γ grains is less than or equal to 10 μm; and the number density of the residual carbides is less than or equal to 4×103 particles/mm2.

公开(公告)号：US09605335B2

公开(公告)日：2017-03-28

申请号：US14379980

申请日：2013-03-28

Applicant: Kobe Steel, Ltd. ,  VOESTALPINE STAHL GMBH

Inventor： Michiharu Nakaya ,  Tatsuya Asai ,  Andreas Pichler ,  Thomas Kurz

IPC: C22C38/28 ,  C22C38/32 ,  C21D8/04 ,  C23C2/02 ,  C23C2/06 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/38 ,  C21D8/02 ,  B32B15/01 ,  C21D9/48

CPC classification number: C23C2/02 ,  B32B15/013 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0284 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/46 ,  C21D9/48 ,  C21D2211/003 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/06 ,  Y10T428/12799

Abstract: Disclosed is a hot-dip galvanized steel sheet for stamping, which has excellent cold workability, has such satisfactory surface quality as to be free from unplating and other defects even in the absence of dedicated facilities, and ensures a strength of 1370 MPa or more after quenching even when cooled at a low rate. Also disclosed is a method effective for the produce of the hot-dip galvanized steel sheet for stamping. The hot-dip galvanized steel sheet for stamping comprises a base steel sheet and a hot-dip galvanized layer on a surface of the base steel sheet, in which the base steel sheet has a predetermined chemical composition and has a microstructure comprising equiaxed ferrite having an average aspect ratio of 4.0 or less and cementite and/or pearlite having an average major axis of grains of 20 μm or less.

公开(公告)号：US09598745B2

公开(公告)日：2017-03-21

申请号：US13879061

申请日：2011-10-21

Applicant: Kunio Hayashi ,  Toshimitsu Aso ,  Toshimasa Tomokiyo ,  Hitoshi Tanino ,  Ryozo Wada

Inventor： Kunio Hayashi ,  Toshimitsu Aso ,  Toshimasa Tomokiyo ,  Hitoshi Tanino ,  Ryozo Wada

IPC: C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C25D5/36

CPC classification number: C21D9/0068 ,  B21D22/022 ,  C21D8/005 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0273 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/02 ,  C25D5/36

Abstract: The present invention provides a method for manufacturing a hot stamped body, the method including: a hot-rolling step; a coiling step; a cold-rolling step; a continuous annealing step; and a hot stamping step, in which the continuous annealing step includes a heating step of heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac1° C. and lower than Ac3° C.; a cooling step of cooling the heated cold-rolled steel sheet from the highest heating temperature to 660° C. at a cooling rate of equal to or less than 10° C./s; and a holding step of holding the cooled cold-rolled steel sheet in a temperature range of 550° C. to 660° C. for one minute to 10 minutes.

公开(公告)号：US09593401B2

公开(公告)日：2017-03-14

申请号：US14402556

申请日：2013-05-20

Applicant: JFE STEEL CORPORATION

Inventor： Hideyuki Takahashi ,  Nobuyuki Sato ,  Kazuki Nakazato ,  Motoki Takada

IPC: B05D3/02 ,  B05D7/14 ,  B05C3/15 ,  C23C2/02 ,  F27B9/28 ,  F27B9/04 ,  C21D1/74 ,  C21D1/76 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C21D9/56 ,  C21D1/26 ,  F27D7/04 ,  C23C2/00

CPC classification number: C23C2/02 ,  B05D3/0218 ,  B05D7/14 ,  C21D1/26 ,  C21D1/74 ,  C21D1/76 ,  C21D9/56 ,  C21D9/561 ,  C23C2/003 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  F27B9/045 ,  F27B9/28 ,  F27D7/04

Abstract: Provided is a vertical annealing furnace, in which a heating zone and a soaking zone are communicated with each other in the upper part of the furnace, in which a part of the furnace other than the communicated parts is separated by a dividing wall, in which part of the furnace gas is suctioned into a refiner having a deoxidation device and a dehumidification device which is placed outside the furnace to decrease the dew point of the gas by removing oxygen and moisture from the gas and such that the resultant gas having a decreased dew point is returned into the furnace, in which a gas suction port into the refiner is located in the lower part of the connection part between the soaking zone and the cooling zone and in which one or more gas suction ports are located in the parts of the heating zone and/or the soaking zone outside of an area within 6 m in the vertical direction and 3 m in the longitudinal direction of the furnace from the steel strip entrance in the lower part of the heating zone.

Abstract translation: 提供一种垂直退火炉，其中加热区和均热区在炉的上部彼此连通，其中除了连通部分之外的一部分炉被分隔壁分隔开，其中 将一部分炉内气体吸入具有脱氧装置和除湿装置的精炼机，该装置设置在炉外，通过从气体中除去氧气和水分从而降低气体的露点，使得所得到的气体具有降低的露水 点返回到炉中，其中进入精磨机的气体吸入口位于均热区和冷却区之间的连接部分的下部，并且其中一个或多个气体吸入口位于 加热区和/或在垂直方向上6m以内的区域外的均热区域和炉的下部的钢带入口3m 汀区。