公开(公告)号：US11230748B2

公开(公告)日：2022-01-25

申请号：US16468847

申请日：2017-12-08

Applicant: FIVES STEIN

Inventor： Florent Code ,  Eric Magadoux ,  Miroslav Raudenski ,  Jaroslav Horski

IPC: C21D9/52 ,  C21D1/667 ,  C21D1/60

Abstract: Rapid cooling section of a continuous metal strip treatment line, where the strip is cooled with a spray of liquid or a mixture of gas and liquid using nozzles located on each side of the strip. Along the direction of movement of the strip, it includes at least one row of flat spray nozzles across the strip followed by at least one row of cone spray nozzles across the strip.

公开(公告)号：US11028457B2

公开(公告)日：2021-06-08

申请号：US15651089

申请日：2017-07-17

Applicant: Caterpillar Inc.

Inventor： Tianjun Liu

IPC: C21D9/00 ,  C21D1/18 ,  C21D1/58 ,  C21D1/60 ,  C21D1/78 ,  C21D1/10 ,  C21D1/25 ,  C21D1/42

Abstract: A method of heat treating a fastening member having a head portion, a shank portion, and a thread portion includes hardening the fastening member to a first hardness value. Hardening of the fastening member includes heating the fastening member at a first pre-set temperature value. The method also includes tempering the fastening member at a second pre-set temperature value to a second hardness value. The method further includes induction tempering the thread portion of the fastening member. Induction tempering of the thread portion includes heating the thread portion at a third pre-set temperature value to a third hardness value. The third hardness value of the thread portion is less than the second hardness value of the head portion and the shank portion.

公开(公告)号：US10550448B2

公开(公告)日：2020-02-04

申请号：US15107857

申请日：2014-12-22

Applicant: ArcelorMittal Wire France

Inventor： Sylvain Foissey ,  Gaëlle Bascourt

IPC: B21F1/00 ,  C21D1/20 ,  C21D1/30 ,  C21D1/42 ,  C21D1/60 ,  C21D1/607 ,  C21D8/06 ,  C21D9/00 ,  C21D9/52 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  E21B17/01 ,  C21D1/18 ,  C22C38/40 ,  C21D1/26 ,  C22C38/18 ,  C22C38/22

Abstract: A cold rolled steel wire having the following chemical composition expressed in percent by weight, 0.2≤C %≤0.6, 0.5≤Mn %≤1.0, 0.1≤Si≤0.5%, 0.2≤Cr≤1.0%, P≤0.020%, S≤0.015%, N≤0.010%, and optionally not more than 0.07% Al, not more than 0.2% Ni, not more than 0.1% Mo and not more than 0.1% Cu, the balance being iron and the unavoidable impurities due to processing. This wire has a microstructure including bainite and, optionally, up to 35% acicular ferrite and up to 15% pearlite. A fabrication method and flexible conduits for hydrocarbon extraction are also provided.

公开(公告)号：US10526447B2

公开(公告)日：2020-01-07

申请号：US15099555

申请日：2016-04-14

Applicant: Houghton Technical Corp.

Inventor： Joseph F. Warchol ,  Yaodong Gan ,  Valarie Yvonne Pearson

IPC: C21D1/60 ,  C08G69/26 ,  C08G73/02 ,  A01N33/08 ,  A01N37/44 ,  C08G69/40 ,  A01N25/02 ,  C08K5/20 ,  C07C231/02 ,  C07C233/16 ,  C07C233/34 ,  C08G69/28 ,  C08L77/06 ,  C08L79/08

Abstract: Methods and compositions are provided for heat treating, e.g. quenching a metal. The quenching composition includes a composition that comprises a polyamidopolyamine compound having a molecular weight of about 500 to about 100,000 and comprising a pendent amino group; and/or a non-polymeric amidoamine having a molecular weight of about 290 to about 5000 and comprising an amino group; and a hydroxyl containing diluent. These compositions impart one or more of the functions of quenching, lubricity, anti/low foaming and/or bioresistance to the quenching fluid.

公开(公告)号：US10455648B2

公开(公告)日：2019-10-22

申请号：US14127735

申请日：2012-07-25

Applicant: Yoshimichi Hino ,  Hirokazu Sugihara

Inventor： Yoshimichi Hino ,  Hirokazu Sugihara

IPC: C21D9/60 ,  H05B6/10 ,  C21D1/42 ,  C21D8/12 ,  C21D1/60 ,  F27D99/00

Abstract: The invention proposes a method for heating a steel sheet wherein the generation of buckling can be prevented regardless of presence or absence of rolls restraining the steel sheet by antecedently heating the widthwise central portion of the steel sheet with a solenoid type induction heating coil having a convex form projected onto the surface of the steel sheet toward an upstream side in rapidly heating the continuously traveling steel sheet, whereby an isotherm of the steel sheet in the heating is a convex form toward the upstream side, so that a large wrinkle is generated on the steel sheet, and also proposes a heating apparatus used in this method.

公开(公告)号：US20190276913A1

公开(公告)日：2019-09-12

申请号：US16426307

申请日：2019-05-30

Applicant: POSCO

Inventor： Jai-Hyun KWAK ,  Kyoo-Young LEE ,  Hang-Sik CHO ,  Joo-Hyun RYU ,  Man-Young PARK

IPC: C21D9/52 ,  C21D1/60 ,  C21D9/56 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D1/34 ,  C22C38/14 ,  C21D1/613 ,  C21D1/773 ,  C21D9/60 ,  C22C38/00 ,  C21D1/26 ,  C21D9/573 ,  C21D1/40 ,  C21D1/52 ,  C21D1/42

Abstract: Provided is a method of continuously annealing a strip. The method includes: firstly heating a strip in a first heating zone; firstly cooling the firstly heated strip or maintaining the firstly heated strip at a constant temperature in a first cooling or constant temperature maintaining zone; secondarily heating and soaking the strip, firstly cooled or remaining at the constant temperature, in a second heating and soaking zone; and secondarily cooling the strip, secondarily heated and soaked, in a second cooling zone.

公开(公告)号：US20190256937A1

公开(公告)日：2019-08-22

申请号：US16241249

申请日：2019-01-07

Applicant: Gary M. Cola, JR.

Inventor： Gary M. Cola, JR.

IPC: C21D6/00 ,  C21D9/54 ,  C21D1/08 ,  C21D9/52 ,  C21D9/46 ,  C21D9/08 ,  C21D1/667 ,  C21D1/63 ,  C21D1/62 ,  C21D1/60 ,  C21D1/52 ,  C21D1/44 ,  C21D1/42 ,  C21D1/18 ,  C21D1/10 ,  C21D1/09

Abstract: Iron-based alloys and articles in strips, sheets, workpieces and the like are converted into high strength steel with a minimum of cost, time and effort, including producing dual phase materials. This is achievable by extremely rapid micro-treating of low, medium, and high carbon iron-based alloys and articles by rapid heating and rapid cooling at least a portion of the alloy/article. This heating step involves nearly immediately heating the iron-based alloy to a selected temperature above its austenite conversion temperature. Then, the alloy is immediately quenched, also at an extremely fast rate, on at least a portion of the iron-based alloy in a quenching unit adjacent the heating unit. This procedure forms high strength alloy in a desired area, depending upon where the treatment was performed.

公开(公告)号：US20190136335A1

公开(公告)日：2019-05-09

申请号：US15805667

申请日：2017-11-07

Applicant: Swagelok Company

Inventor： Gerhard H. Schiroky

IPC: C21D6/00 ,  C21D1/42 ,  C21D1/40 ,  C21D1/60 ,  B21J1/00 ,  B21J1/06

Abstract: The post-forging solution anneal step normally carried out on hot forgings made from highly alloyed metals can be eliminated while still avoiding the formation of deleterious intermetallic phases by adopting a number separate features in connection with the way the forging is made.

公开(公告)号：US10202667B2

公开(公告)日：2019-02-12

申请号：US14899958

申请日：2014-06-25

Applicant: JFE STEEL CORPORATION

Inventor： Noriaki Kosaka ,  Satoshi Tsutsumi ,  Takayuki Murata ,  Motohiko Urabe

IPC: C21D9/46 ,  C21D8/02 ,  C22C38/00 ,  C22C38/14 ,  C22C38/60 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  B32B15/01 ,  C21D1/60 ,  C21D6/00 ,  C23C2/02 ,  C23C2/06

Abstract: There is provided a high strength hot rolled steel sheet having a composition comprising C: 0.040% to 0.100%, by mass %, Si: 0.50% or less, by mass %, Mn: 1.00% to 2.00%, by mass %, P: 0.03% or less, by mass %, S: 0.006% or less, by mass %, Al: 0.08% or less, by mass %, N: 0.0080% or less, by mass %, Ti: 0.14% to 0.22%, by mass %, and Fe and incidental impurities, and a method for making the same. The high strength hot rolled steel sheet includes a microstructure in which a primary phase is a ferrite phase and fine carbides containing Ti are dispersion-precipitated.

公开(公告)号：US10174390B2

公开(公告)日：2019-01-08

申请号：US12444242

申请日：2007-10-03

Applicant: Gary M. Cola, Jr.

Inventor： Gary M. Cola, Jr.

IPC: C21D1/08 ,  C21D6/00 ,  C21D1/09 ,  C21D1/10 ,  C21D1/18 ,  C21D1/42 ,  C21D1/44 ,  C21D1/52 ,  C21D1/60 ,  C21D1/62 ,  C21D1/63 ,  C21D1/667 ,  C21D9/08 ,  C21D9/46 ,  C21D9/52 ,  C21D9/54

Abstract: Iron-based alloys and articles in strips, sheets, workpieces and the like are converted into high strength steel with a minimum of cost, time and effort, including producing dual phase materials. This is achievable by extremely rapid micro-treating of low, medium, and high carbon iron-based alloys and articles by rapid heating and rapid cooling at least a portion of the alloy/article. This heating step involves nearly immediately heating the iron-based alloy to a selected temperature above its austenite conversion temperature. Then, the alloy is immediately quenched, also at an extremely fast rate, on at least a portion of the iron-based alloy in a quenching unit adjacent the heating unit. This procedure forms high strength alloy in a desired area, depending upon where the treatment was performed.