公开(公告)号：US4950336A

公开(公告)日：1990-08-21

申请号：US368031

申请日：1989-06-19

申请人： Yukio Tomita ,  Ryota Yamaba ,  Yukio Tsuda ,  Katsuyoshi Yamanaka ,  Tatsuya Kumagai

发明人： Yukio Tomita ,  Ryota Yamaba ,  Yukio Tsuda ,  Katsuyoshi Yamanaka ,  Tatsuya Kumagai

IPC分类号： C21D3/06 ,  C21D8/12

CPC分类号： C21D8/1222 ,  C21D3/06

摘要： A method of producing non-oriented magnetic steel heavy plate that has good magnetic properties in a low magnetic field that comprises hot-rolling high-purity steel, adjusting the crystal grain size and dehydrogenation treatment, whereby the a uniform ferrite grain diameter is imparted to the steel.

公开(公告)号：US4913749A

公开(公告)日：1990-04-03

申请号：US297292

申请日：1989-01-13

申请人： Frank Hengerer ,  Gerhard Mend ,  Ulf Sjoblom ,  Roger Bjorn

发明人： Frank Hengerer ,  Gerhard Mend ,  Ulf Sjoblom ,  Roger Bjorn

IPC分类号： C21D1/78 ,  C21D3/06 ,  C21D9/40 ,  C23C8/22 ,  F16C33/30

CPC分类号： C23C8/22 ,  C21D1/78 ,  C21D3/06 ,  C21D9/40 ,  F16C33/30

摘要： In a process for case-hardening rolling bearing elements of low-alloy nickeliferous steel, the rolling bearing elements are carburized in a dissociating carburizing gas, cooled down, heated to hardening temperature, austenitized in the carburized layer and, lastly, quenched.So that no brittleness of the rolling bearing elements takes place upon carburization due to dissociated hydrogen, the bearing elements are cooled from carburizing heat down to about 300.degree. C. in agitated inert gas and then held at this temperature, so that sufficient dissociated hydrogen escapes from the carburized layer of the rolling bearing elements. Subsequent heating of the said elements to hardening temperature or to intermediate annealing temperature is advantageously effected after holding at 300.degree. C.

摘要翻译： 在低合金含镍钢的表面硬化滚动轴承元件的方法中，滚动轴承元件在解离渗碳气体中渗碳，冷却，加热至硬化温度，在渗碳层中奥氏体化，最后淬火。 因此，由于离解的氢气，在渗碳时不会发生滚动轴承元件的脆性，所以将轴承元件在搅拌的惰性气体中从渗碳热降至约300℃，然后在该温度下保持，使得足够的离解的氢逸出 来自滚动轴承元件的渗碳层。 随后将所述元件加热至硬化温度或中间退火温度有利于在保持在300℃之后进行。

公开(公告)号：US2299639A

公开(公告)日：1942-10-20

申请号：US38654641

申请日：1941-04-02

申请人： CARNEGIE ILLINOIS STEEL CORP

发明人： MCELHANEY JAMES R

IPC分类号： C21D3/06

CPC分类号： C21D3/06

公开(公告)号：US20240352549A1

公开(公告)日：2024-10-24

申请号：US18574068

申请日：2022-05-17

申请人： JFE STEEL CORPORATION

发明人： Yuki TOJI ,  Kazuki ENDOH ,  Hidekazu MINAMI

IPC分类号： C21D3/10 ,  C21D3/06 ,  C21D10/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/24 ,  C22C38/26 ,  C22C38/38 ,  C22C38/60

CPC分类号： C21D3/10 ,  C21D3/06 ,  C21D10/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/24 ,  C22C38/26 ,  C22C38/38 ,  C22C38/60

摘要： Provided are a steel sheet dehydrogenation apparatus, a steel sheet production system, and a steel sheet production method capable of producing a steel sheet excellent in hydrogen embrittlement resistance without changing the mechanical properties of the steel sheet. A dehydrogenation apparatus comprises: a housing configured to house a steel sheet coil obtained by coiling a steel strip; and a vibration application device configured to apply vibration to the steel sheet coil housed in the housing so that the steel sheet coil is caused to vibrate at a frequency of 100 Hz to 100,000 Hz and a maximum amplitude of 10 nm to 500 μm.

公开(公告)号：US20230243006A1

公开(公告)日：2023-08-03

申请号：US18004881

申请日：2021-05-26

申请人： JFE STEEL CORPORATION

发明人： Junya TOBATA ,  Kazuki ENDOH ,  Yuki TOJI

IPC分类号： C21D3/06 ,  C21D7/13 ,  C21D10/00 ,  C21D7/02 ,  C21D9/46 ,  C21D9/08 ,  C21D9/52

CPC分类号： C21D3/06 ,  C21D7/13 ,  C21D10/00 ,  C21D7/02 ,  C21D9/46 ,  C21D9/08 ,  C21D9/52

摘要： Provided is a dehydrogenation method capable of efficiently reducing hydrogen content in steel for thick or complexly-shaped steel materials and steel products in general. In a dehydrogenation method for a steel material, in a series of steel material production process including: a process of supplying a steel raw material; a process of subjecting the steel raw material to hot working; a process of inspecting a steel material obtained from the steel raw material; and a process of shipping the steel material, at least one of the steel raw material and the steel material at any stage from the supply process to the shipment process is subjected to, at least once, a sound wave irradiation treatment so that a sound pressure level at a surface of the at least one of the steel raw material and the steel material will be 30 dB or more.

公开(公告)号：US20210025018A1

公开(公告)日：2021-01-28

申请号：US16935485

申请日：2020-07-22

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Nishkamraj U. Deshpande

IPC分类号： C21D3/06 ,  C22F1/10 ,  B23K9/32

摘要： Various methods are provided to produce welded structures resistant to hydrogen induced cracking (HIC), improve wear resistance, reduce manufacturing steps including pre/post weld treatments, and improving corrosion resistance. Exemplary methods include using exothermic reactive powder mixtures on as-welded hot surface(s) during weld cooling which generate rapid exothermic reaction melting and hydrogen removal which results in reduction of hydrogen, creation of a wear/corrosion prevention or reduction layer, and a reduction of residual stresses effect in the weld initially formed in initial welding. Alternative embodiments can also employ post cooling re-heating and application of one or more alternative methods using exothermic reactive powders.

公开(公告)号：US20200173004A1

公开(公告)日：2020-06-04

申请号：US16615955

申请日：2017-09-01

申请人： NIPPON STEEL NISSHIN CO., LTD.

发明人： Susumu FUJIWARA ,  Shinya UESUGI ,  Tomoharu SHIGETOMI

IPC分类号： C23C2/06 ,  C23C2/28 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/32 ,  C22C18/04 ,  C21D3/06 ,  C21D8/02

摘要： A high-strength surface-coated steel sheet includes a base steel sheet having a composition by mass of C: 0.01 to 0.20%, Si: 0.01 to 0.50%, Mn: 0.10 to 2.50%, P: 0.005 to 0.050%, B: 0.0005 to 0.010%, Ti: 0.01 to 0.20%, Nb: 0 to 0.10%, Mo: 0 to 0.50%, Cr: 0 to 0.50%, Al: 0.01 to 0.10%, and the balance of Fe and inevitable impurities; and a Zn—Al—Mg-based coating layer disposed on a surface of the base steel sheet, The steel sheet has a diffusible hydrogen concentration in the base steel sheet of 0.30 ppm or less and having a time until occurrence of red rust of 7000 hours or more as measured by a salt spray test. The high-strength hot-dip Zn—Al—Mg-based-plated steel sheet has a significantly lowered in-steel concentration of hydrogen which has entered the steel in a plating line and exhibits excellent corrosion resistance.

公开(公告)号：US10529473B2

公开(公告)日：2020-01-07

申请号：US15440667

申请日：2017-02-23

申请人： TDK CORPORATION

发明人： Takurou Iwasa ,  Masashi Miwa

IPC分类号： H01F1/053 ,  B22F9/04 ,  B22F3/12 ,  B22F5/00 ,  C21D3/06 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  H01F1/06

摘要： An R-T-B based permanent magnet includes R-T-B based compounds as main-phase crystal grains. R is a rare earth element. T is iron group element(s) essentially including Fe or Fe and Co. B is boron. A two-grain boundary is contained between the two adjacent main-phase crystal grains. An average grain size of the main-phase crystal grains is 0.9 μm or more and 2.8 μm or less. A thickness of the two-grain boundary is 5 nm or more and 200 nm or less.

公开(公告)号：US10232935B2

公开(公告)日：2019-03-19

申请号：US15198156

申请日：2016-06-30

申请人： SAFRAN LANDING SYSTEMS

发明人： Sacha Mierzejewski ,  Romain Ottenio

IPC分类号： B64C25/36 ,  B60B35/02 ,  C25D3/56 ,  C21D3/06 ,  C22C18/00 ,  C23C22/06 ,  C23C22/78 ,  C23C22/82 ,  C25D5/34 ,  C25D5/48 ,  C25D7/00

摘要： Aircraft landing gear strut (1) comprising a main part (1a) extending along a main axis (X-X) of the strut and comprising an axle shaft (1b) extending in a plane (P) perpendicular to the main shaft (1a) of the strut, this axle shaft (1b) being designed to support at least one landing gear when (2a, 2b) equipped with brakes (3a, 3b) for braking the wheel, said axle shaft (1b) being made of steel. The axle shaft (1b) bears at least one layer of zinc-nickel alloy coating (C), this zinc-nickel alloy comprising, as a mass percent of the alloy, between 12% and 18% or nickel, at most 0.5% of elements other than nickel and zinc, the rest being zinc.

公开(公告)号：US09951412B2

公开(公告)日：2018-04-24

申请号：US13809189

申请日：2011-07-27

申请人： Kenichi Nagata ,  Nobuhito Makino

发明人： Kenichi Nagata ,  Nobuhito Makino

IPC分类号： C23C14/00 ,  C23C14/34 ,  C21D1/74 ,  C21D3/06 ,  C22C14/00 ,  C22F1/00 ,  C22F1/18 ,  C22C27/02 ,  H01J37/34

CPC分类号： C23C14/34 ,  C21D1/74 ,  C21D3/06 ,  C22C14/00 ,  C22C27/02 ,  C22F1/00 ,  C22F1/18 ,  C22F1/183 ,  C23C14/3414 ,  C23C14/3471 ,  H01J37/3426 ,  H01J37/3464 ,  H01J37/3491 ,  H01J37/3497 ,  Y10T29/49865

摘要： Provided is a sputtering target and/or a coil disposed at the periphery of a plasma-generating region for confining plasma. The target and/or the coil has a surface to be eroded having a hydrogen content of 500 μL/cm2 or less. In dealing with reduction in the hydrogen content of the surface of the target and/or the coil, the process of producing the target and/or the coil, in particular, the conditions for heating the surface of the target and/or the coil, which is thought to be cause of hydrogen occlusion, are appropriately regulated. As a result, hydrogen occlusion at the surface of the target can be reduced, and the degree of vacuum during sputtering can be improved. Thus, the present invention provides a target and/or a coil that has a uniform and fine structure, makes plasma stable, and allows a film to be formed with excellent uniformity and provides a method of producing the target and/or the coil.