公开(公告)号：US09758850B2

公开(公告)日：2017-09-12

申请号：US14408772

申请日：2013-06-19

申请人： JFE Steel Corporation

发明人： Kenichiro Eguchi ,  Yasuhide Ishiguro ,  Yukio Miyata ,  Mitsuo Kimura

IPC分类号： C22C38/54 ,  C21D9/08 ,  C22C38/00 ,  C22C38/46 ,  C21D6/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50

CPC分类号： C22C38/54 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D9/08 ,  C21D9/085 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

摘要： A pipe having chemical composition contains, by mass %, C: 0.05% or less, Si: 0.5% or less, Mn: 0.15% or more and 1.0% or less, Cr: 13.5% or more and 15.4% or less, Ni: 3.5% or more and 6.0% or less, Mo: 1.5% or more and 5.0% or less, Cu: 3.5% or less, W: 2.5% or less, and N: 0.15% or less so that the relationship −5.9×(7.82+27C−0.91 Si+0.21Mn−0.9Cr+Ni−1.1Mo−0.55W+0.2Cu+11N)≧13.0 is satisfied.

公开(公告)号：US09738949B2

公开(公告)日：2017-08-22

申请号：US15208720

申请日：2016-07-13

申请人： JFE STEEL CORPORATION

发明人： Takeshi Imamura ,  Yukihiro Shingaki ,  Makoto Watanabe ,  Ryuichi Suehiro ,  Toshito Takamiya

IPC分类号： C22C38/04 ,  C21D9/46 ,  C21D8/12 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16 ,  C22C38/02 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/40 ,  C21D6/00 ,  C22C38/34 ,  H01F1/147

CPC分类号： C21D9/46 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1283 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  C22C38/40 ,  C22C38/60 ,  H01F1/14775 ,  H01F1/16

摘要： In a method for producing a grain-oriented electrical steel sheet by including a series of steps of hot rolling a raw steel material containing C: 0.002-0.10 mass %, Si: 2.0-8.0 mass % and Mn: 0.005-1.0 mass % to obtain a hot rolled sheet, subjecting the hot rolled steel sheet after or without hot band annealing to one stage cold rolling or two or more stage cold rollings including an intermediate annealing therebetween to obtain a cold rolled sheet having a final sheet thickness, subjecting the cold rolled sheet to decarburization annealing combined with primary recrystallization annealing, applying an annealing separator to the steel sheet surface, and then subjecting to a final annealing.

公开(公告)号：US20170226606A1

公开(公告)日：2017-08-10

申请号：US15015739

申请日：2016-02-04

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Huaxin Li ,  Glenn E. Clever

IPC分类号： C21D9/30 ,  C23C8/22 ,  C21D6/00 ,  C22C38/44 ,  F16H53/02 ,  C22C38/02 ,  C22C38/00 ,  C21D1/58 ,  C21D1/22 ,  C21D1/06 ,  C22C38/04

CPC分类号： C21D9/30 ,  C21D1/06 ,  C21D1/22 ,  C21D1/58 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D2211/008 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C23C8/22 ,  C23C8/32 ,  C23C8/80 ,  F16H53/025

摘要： A method of manufacturing a sliding camshaft for an internal combustion engine includes providing the sliding camshaft from a steel alloy having a carbon content between 0.25% and 0.60%. The sliding camshaft is then processed with a carbon infusing heat treatment process, such as carburization or carbonitriding. After the sliding camshaft has been processed with the carbon infusing heat treatment process, the sliding camshaft is then processed with a quenching heat treatment process, such as a mar-quenching heat treatment process.

公开(公告)号：US20170184200A1

公开(公告)日：2017-06-29

申请号：US15129453

申请日：2015-03-16

申请人： NISSHIN STEEL CO., LTD.

发明人： Naohito KUMANO ,  Kazunari IMAKAWA ,  Manabu OKUBO

IPC分类号： F16J15/08 ,  C22C38/52 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C21D6/00 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46 ,  C22C38/54 ,  C22C38/44

CPC分类号： F16J15/0818 ,  C21D6/004 ,  C21D9/46 ,  C21D2201/01 ,  C21D2201/04 ,  C21D2211/001 ,  C22C38/00 ,  C22C38/001 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  C22C38/58 ,  F16J15/0806

摘要： Problem To provide a heat resistant metal gasket that is controlled to have a strength level (ordinary temperature hardness) capable of facilitating processing, and has excellent gas leak resistance.Solution An austenitic stainless steel sheet for a metal gasket, having a chemical composition containing from 0.015 to 0.200% of C, from 1.50 to 5.00% of Si, from 0.30 to 2.50% of Mn, from 7.0 to 17.0% of Ni, from 13.0 to 23.0% of Cr, and from 0.005 to 0.250% of N, all in terms of percentage by mass, containing, as necessary, at least one of Mo, Cu, Nb, Ti, V, Zr, W, Co, B, Al, REM (rare-earth element except for Y), Y, Ca and Mg, with the balance of Fe and unavoidable impurities, having an ordinary temperature hardness of 430 HV or less, having a half width of a peak of an austenite crystal (311) plane in an X-ray diffraction pattern of a cross section perpendicular to a sheet thickness direction of from 0.10 to 1.60°, and having a surface roughness Ra of 0.30 μmm or less.

公开(公告)号：US20170159145A1

公开(公告)日：2017-06-08

申请号：US15292403

申请日：2016-10-13

申请人： Nivarox-FAR S.A.

发明人： Christian CHARBON ,  Guido Plankert

IPC分类号： C21D9/02 ,  C22C38/00 ,  C22C38/58 ,  C21D8/06 ,  C21D6/00

CPC分类号： C21D9/02 ,  C21D6/004 ,  C21D8/065 ,  C22C38/002 ,  C22C38/04 ,  C22C38/08 ,  C22C38/38 ,  C22C38/58 ,  G04B17/066 ,  G04B17/227 ,  G04B43/007

摘要： Method for fabrication of an antiferromagnetic and temperature compensated timepiece balance spring, including the steps of: selecting an amagnetic iron-chromium-nickel-manganese-beryllium compensating alloy, comprising, by mass percent, between and including: from 21.0% to 25.0% of manganese, from 9.0% to 13.0% of nickel, from 6.0% to 15.0% of chromium, from 0.2% to 2.0% of beryllium, the remainder iron, the total of nickel and manganese being higher than or equal to 33.0%, working the alloy to obtain a blank, shaping the blank by casting and/or forging and/or wire drawing and/or rolling and/or drawing, to obtain a blank of spring wire; winding the wire on a winder to obtain a balance spring, subjecting the spiral spring to at least a heat setting treatment, by annealing at a temperature comprised between 540° C. and 650° C., for a duration of 30 to 200 minutes, to obtain a balance spring.

公开(公告)号：US09670570B2

公开(公告)日：2017-06-06

申请号：US14255693

申请日：2014-04-17

申请人： EVRAZ Inc. NA Canada

发明人： Joseph Victor Kristan ,  Gregory Ryan Lehnhoff ,  Mark David Richards

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  C21D1/18 ,  C21D6/00 ,  C21D8/00 ,  C21D9/04 ,  C21D1/06 ,  C22C38/00

CPC分类号： C22C38/54 ,  C21D1/06 ,  C21D1/18 ,  C21D6/002 ,  C21D6/004 ,  C21D8/005 ,  C21D9/04 ,  C21D2211/001 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52

摘要： This invention relates to a high carbon steel rail with enhanced ductility comprising 0.65-1.4 mass % of carbon, 0.1-1.5 mass % of silicon, 0.01-0.4 mass % of manganese, 0.1-1.5 mass % of chromium, and 0.005-0.05 mass % of titanium, with additional allowances for Mo, Nb, V, Cu, M, Co, B, N, Ca, Mg, Zr, Al, and W, with the remainder comprising iron and the inevitable impurities, that displays a head surface hardness of at least 325 HB and a microstructure comprising at least 90% pearlite at a depth of between 2-20 mm below the rail head surface. The invention also relates to the process for manufacturing the high carbon steel rail with enhanced ductility.

公开(公告)号：US09657383B2

公开(公告)日：2017-05-23

申请号：US14359735

申请日：2012-11-21

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yoshitaka Nishiyama ,  Hiroshi Matsuo ,  Shunichi Otsuka

IPC分类号： C23C8/14 ,  C23C8/18 ,  C22C38/38 ,  C22C38/58 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/30 ,  C21D6/00 ,  C22C38/14 ,  F24J2/48 ,  C23C4/11 ,  C23C4/134 ,  F24J2/07

CPC分类号： C23C8/14 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58 ,  C23C4/11 ,  C23C4/134 ,  C23C8/18 ,  F24S20/20 ,  F24S70/225 ,  F24S70/25 ,  Y02E10/40

摘要： There is provided a heat resistant ferritic steel including a base material including, by mass percent, C: 0.01 to 0.3%, Si: 0.01 to 2%, Mn: 0.01 to 2%, P: at most 0.10%, S: at most 0.03%, Cr: 7.5 to 14.0%, sol.Al: at most 0.3%, and N: 0.005 to 0.15%, the balance being Fe and impurities, and an oxide film that is formed on the base material and contains 25 to 97% of Fe and 3 to 75% of Cr. This heat resistant ferritic steel is excellent in photoselective absorptivity and oxidation resistance.

公开(公告)号：US20170137921A1

公开(公告)日：2017-05-18

申请号：US15055625

申请日：2016-02-28

申请人： Yuanji Zhu

发明人： Yuanji Zhu

IPC分类号： C22C38/50 ,  C21D1/18 ,  C22C33/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/04 ,  C21D6/00 ,  C22C38/44

CPC分类号： C22C38/50 ,  C21D1/18 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C22C33/04 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44

摘要： Described herein are systems and methods for producing a hardwearing or wear-resistant alloy steel. In one aspect, a first group of materials comprising steel may be heated, and melted to liquid form. The melted first group may then be mixed with a second group of materials comprising carbon, chromium, nickel, manganese, silicon, molybdenum, titanium, rhenium, sulfur, and phosphorus, to yield a mixture. The mixture may then be cast, cooled, and heat-treated to yield the hardwearing or wear-resistant alloy steel.

公开(公告)号：US20170130317A1

公开(公告)日：2017-05-11

申请号：US15409074

申请日：2017-01-18

申请人： Swagelok Company

发明人： Sunniva R. Collins ,  Gerhard H. Schiroky ,  Steven V. Marx ,  Peter C. Williams

IPC分类号： C23C8/22 ,  C21D1/06 ,  C21D1/773 ,  C21D6/00

CPC分类号： C23C8/22 ,  C21D1/06 ,  C21D1/74 ,  C21D1/773 ,  C21D6/00 ,  C21D6/001 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008

摘要： Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.

公开(公告)号：US09617632B2

公开(公告)日：2017-04-11

申请号：US13733939

申请日：2013-01-04

申请人： Swagelok Company

发明人： Sunniva R. Collins ,  Gerhard H. Schiroky ,  Steven V. Marx ,  Peter C. Williams

IPC分类号： C23C8/22 ,  C21D6/00 ,  C21D1/74 ,  C21D1/773 ,  C21D1/06

CPC分类号： C23C8/22 ,  C21D1/06 ,  C21D1/74 ,  C21D1/773 ,  C21D6/00 ,  C21D6/001 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008

摘要： Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.