公开(公告)号：US10434606B2

公开(公告)日：2019-10-08

申请号：US15549784

申请日：2016-04-19

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Hideyuki Hamamura ,  Tatsuhiko Sakai ,  Fumiaki Takahashi ,  Hisashi Mogi ,  Shunsuke Okumura ,  Hirofumi Imai

IPC: B23K26/364 ,  B23K26/359 ,  C21D8/12 ,  C21D7/00 ,  C25F1/00 ,  C22C38/00 ,  H01F1/16 ,  B05D3/02 ,  B05D7/14 ,  C21D3/04 ,  C21D6/00 ,  C21D8/00 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42

Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. When an average value of a groove depth in a sheet thickness direction at a central portion of the groove in a longitudinal groove direction is set as an average groove depth D, a straight line, which connects a first point at which a groove depth in the sheet thickness direction becomes 0.05×D and a second point at which the groove depth becomes 0.50×D, at an inclined portion of the groove is set as a groove end straight line, an angle made by the steel sheet surface and the groove end straight line is set as a first angle θ, and an average value of a groove-width-direction length, which is a length of a line segment connecting two points at which a groove depth in the sheet thickness direction in a contour of the groove on the groove-width-direction cross-section becomes 0.05×D, is set as an average groove width W, an aspect ratio A obtained by dividing the average groove depth D by the average groove width W, and the first angle θ satisfy the following Expression (1). θ

公开(公告)号：US20190274851A1

公开(公告)日：2019-09-12

申请号：US16358232

申请日：2019-03-19

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Kotaro HANADA ,  Kunio MATSUZAKI

IPC: A61F2/82 ,  C22C1/02 ,  C21D9/08 ,  A61L31/14 ,  C22F1/06 ,  A61L31/02 ,  C21D7/00 ,  B21C1/24

Abstract: Provided is a thin, narrow tube for use in a biodegradable medical device formed from a round tube made of a magnesium material as the base material, in which a desired outer diameter and an inner diameter are provided with good precision over the entire region in a longitudinal direction and a circumferential direction, and the length of biodegradation time can be controlled without changing a material composition. The thin, narrow tube is a thin, narrow tube of a biodegradable medical device, in which the thin, narrow tube is a round tube made of crystals containing magnesium (Mg) having a hexagonal crystal structure, and when the crystals forming the round tube are viewed in a round tube axis direction of the round tube, a hexagonal basal plane (0001) is oriented at a predetermined inclination angle with respect to a circumferential direction perpendicular to a radial direction (a direction from an inner surface to an outer surface) of the round tube.

公开(公告)号：US09464611B2

公开(公告)日：2016-10-11

申请号：US13737401

申请日：2013-01-09

Applicant: Atsushi Sugihashi ,  Koji Hirano ,  Yasushi Hasegawa

Inventor： Atsushi Sugihashi ,  Koji Hirano ,  Yasushi Hasegawa

IPC: F02M55/02 ,  F02M63/02 ,  C21D7/00 ,  C21D7/06 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  F02M61/16

CPC classification number: F02M55/025 ,  C21D7/00 ,  C21D7/06 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  F02M61/168 ,  F02M63/0225 ,  F02M2200/8069 ,  F02M2200/9061 ,  Y10T428/12361

Abstract: This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe.

Abstract translation: 本发明涉及一种制造廉价钢的共轨的方法，该廉价钢用作共轨材料，具有良好的韧性和疲劳强度的高强度液相扩散接合用钢，该钢含有质量 ％，C：0.01〜0.3％，Si：0.01〜0.5％，Mn：0.01〜3.0％，Cr：1.0〜12.0％，Mo：0.1〜2.0％，V：0.01〜1.0％ ，B：0.0003〜0.01％，Ti：0.01〜0.05％，N：0.001〜0.01％，P含量限制在0.03％以下，S含量为0.01％以下，O含量为0.01％以下，进一步具有 晶界分离脆化元素As，Sn，Sb，Pb和Zn的总含量限制在0.015％以下，余量为不可避免的杂质和Fe。

公开(公告)号：US20160032415A1

公开(公告)日：2016-02-04

申请号：US14777359

申请日：2014-03-14

Applicant: PETROWELL LIMITED

Inventor： Oliver Webster

IPC: C21D1/30 ,  F27D5/00 ,  C23C8/24 ,  C22C38/00 ,  C21D1/74 ,  C21D7/00

CPC classification number: C21D1/30 ,  C21D1/06 ,  C21D1/74 ,  C21D1/76 ,  C21D7/00 ,  C21D2221/00 ,  C22C38/00 ,  C23C8/02 ,  C23C8/24 ,  F27D5/00

Abstract: A method for manufacturing a metal structure (130) for use in a downhole assembly comprises plastically deforming at least a portion of the metal structure (130); and heating at least the deformed portion of the metal structure to a temperature below its critical and/or transformation temperature. An assembly for performing the method comprises a production fixture (370) configured to receive the metal structure (130), wherein the production fixture is adapted to undergo heating to a temperature below and/or up to the critical and/or transformation temperature of the metal structure. By heating at least the deformed portion of the metal structure to a temperature below its critical and/or transformation temperature, the metal structure may undergo stress relief, which may help prevent undesirable movement of deformed portion, e.g. collet fingers of a catching apparatus, against the direction of deformation after impact(s) and/or shock(s) from moving objects, in use.

Abstract translation: 用于制造用于井下组件的金属结构（130）的方法包括使金属结构（130）的至少一部分塑性变形; 以及至少将所述金属结构的变形部分加热到低于其临界和/或转变温度的温度。 用于执行该方法的组件包括构造成接收金属结构（130）的生产夹具（370），其中生产夹具适于经受加热至低于和/或高于其的临界和/或相变温度 金属结构。 通过将金属结构的至少变形的部分加热到低于其临界和/或相变温度的温度，金属结构可能经历应力释放，这可有助于防止变形部分的不希望的移动，例如， 捕捉装置的夹头，在使用中抵抗来自移动物体的冲击和/或冲击之后的变形方向。

公开(公告)号：US09067260B2

公开(公告)日：2015-06-30

申请号：US12823820

申请日：2010-06-25

Applicant: Frederic Bonnet ,  Olivier Bouaziz ,  Laure Cala

Inventor： Frederic Bonnet ,  Olivier Bouaziz ,  Jean-Claude Chevallot

IPC: C22C38/02 ,  C22C38/06 ,  C22C38/14 ,  C22C38/04 ,  C21D8/02 ,  B32B15/18 ,  B22D25/06 ,  B32B15/01 ,  B23P17/04 ,  B22D11/00 ,  C21D7/00 ,  C22C38/00

CPC classification number: B22D25/06 ,  B22D11/001 ,  B22D11/0622 ,  B23P17/04 ,  B32B15/011 ,  C21D7/00 ,  C21D8/021 ,  C21D8/0215 ,  C21D8/0247 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  Y10T428/12965

Abstract: The invention relates to a steel plate, the chemical composition of which comprises, the contents being expressed by weight: 0.010%≦C≦0.20%, 0.06%≦Mn≦3%, Si≦1.5%, 0.005%≦Al≦1.5%, S≦0.030%, P≦0.040%, 2.5%≦Ti≦7.2%, (0.45×Ti)−0.35%≦B≦(0.45×Ti)+0.70%, and optionally one or more elements chosen from: Ni≦1%, Mo≦1%, Cr≦3%, Nb≦0.1%, V≦0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

Abstract translation: 本发明涉及一种钢板，其化学组成包括：重量含量：0.010％＆nlE; CnnE; 0.20％，0.06％＆NlE; Mn＆NlE; 3％，Si＆NlE; 1.5％，0.005％＆NlE; Al （0.45×Ti）-0.35％＆amp; NlE; B＆lt; E（0.45×Ti）+ 0.70％，以及任选的一种或多种元素 选自：Ni＆nlE; 1％，Mo＆nlE; 1％，Cr＆nlE; 3％，Nb＆nlE; 0.1％，V＆nlE; 0.1％，由冶炼产生的铁和不可避免的杂质组成的余量。

公开(公告)号：US08893538B2

公开(公告)日：2014-11-25

申请号：US13293693

申请日：2011-11-10

Applicant: Yoshio Miyasaka

Inventor： Yoshio Miyasaka

IPC: C21D7/06 ,  C22F1/04 ,  C21D7/00

CPC classification number: C21D7/06 ,  C21D7/00 ,  C22F1/04 ,  C23C14/028 ,  Y10T29/479

Abstract: Uniform nano-scale microstructures can be reliably formed on the surface layer of this metal product while still improving the surface roughness and make the surface layer robust enough not to disappear due to wear. The surface of the metal product is repeatedly subjected to instantaneous rapid heating and rapid cooling by intermittently ejecting onto the surface of the metal product shot with a mixture of three or more approximate but different particle sizes for a high ejection density, thereby forming uniform microstructures near the surface of the metal product and forming micro-diameter dimples in the metal surface.

Abstract translation: 可以在该金属制品的表面层上可靠地形成均匀的纳米尺寸微观结构，同时仍然改善表面粗糙度，并使表面层牢固到足以不会由于磨损而消失。 金属制品的表面通过间歇地喷射到金属制品的表面上，以三种或更多种近似但不同的粒度的混合物反复进行瞬时快速加热和快速冷却，以获得高喷射密度，从而在接近 金属制品的表面，并在金属表面形成微径凹坑。

公开(公告)号：US20140255242A1

公开(公告)日：2014-09-11

申请号：US14284498

申请日：2014-05-22

Applicant: The Hong Kong Polytechnic University

Inventor： Jian Lu ,  Junbao Zhang ,  Aiying Chen

IPC: C21D7/00 ,  C22C38/00

CPC classification number: C21D7/00 ,  B23K20/04 ,  B23K2103/04 ,  B23K2103/05 ,  B32B15/011 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/40 ,  Y10T428/12021 ,  Y10T428/12458 ,  Y10T428/12653

Abstract: A composite steel plate in which at least two steel sheets are rolled to form a plate. One of the sheets has a composition that varies in a depthwise direction between nanocrystalline and micron grained. The plate is made by treating a steel sheet to produce a composition in the sheet that varies in a depthwise direction of the sheet between nanocrystalline and micron grained, stacking the treated sheet with at least one other steel sheet and rolling the sheets to form the plate.

Abstract translation: 一种复合钢板，其中至少两个钢板被轧制以形成板。 其中一个片材具有在纳米晶粒和微米颗粒之间沿深度方向变化的组成。 该板通过处理钢板以在片材中产生在纳米晶粒和微米级之间的片材的深度方向上变化的组合物，用至少一种其他钢板堆叠处理的片材并轧制片材以形成板材 。

公开(公告)号：US08828557B2

公开(公告)日：2014-09-09

申请号：US13264006

申请日：2010-04-27

Applicant: Shusaku Takagi ,  Kohei Hasegawa

Inventor： Shusaku Takagi ,  Kohei Hasegawa

IPC: B32B15/18 ,  C22C38/18 ,  C21D7/00 ,  B32B15/01 ,  C21D9/46 ,  C21D8/04 ,  C23C2/02 ,  C22C38/00 ,  C23C2/28 ,  C22C38/26 ,  C22C38/02 ,  C22C38/32 ,  C22C38/06 ,  C23C2/06 ,  C22C38/38 ,  C21D9/48 ,  C22C38/28

CPC classification number: C23C2/02 ,  B32B15/013 ,  C21D8/0405 ,  C21D8/0426 ,  C21D8/0463 ,  C21D8/0473 ,  C21D9/46 ,  C21D9/48 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/06 ,  C23C2/28 ,  Y10T428/12229 ,  Y10T428/12799

Abstract: A high strength galvanized steel sheet including all in mass %, C: 0.05% to

Abstract translation: 1.一种高强度镀锌钢板，其全部以质量％计，C：0.05％〜<0.12％，Si：0.35％〜<0.80％，Mn：2.0〜3.5％，P：0.001〜0.040％，S：0.0001〜0.0050％ ，Al：0.005〜0.1％，N：0.0001〜0.0060％，Cr：0.01〜0.5％，Ti：0.010〜0.080％，Nb：0.010〜0.080％，B：0.0001〜0.0030％ Mo：0.01〜0.15％，Ca：0.0001〜0.0050％，REM：0.0001〜0.1％，Sb：0.0001〜0.1％，Fe和不可避免的杂质作为平衡，具有含有体积分数的铁素体相的组织 20〜70％的范围，平均粒径等于或小于5μm，并且在其表面上具有涂层重量（每边）为20至150g / m 2的镀锌层。

公开(公告)号：US08216400B2

公开(公告)日：2012-07-10

申请号：US12681853

申请日：2009-09-14

Applicant: Tatsuya Kumagai

Inventor： Tatsuya Kumagai

IPC: C21D7/00 ,  C21D8/02 ,  C22C38/00

CPC classification number: C22C38/02 ,  C21D6/002 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/54 ,  C22C38/58 ,  Y10T428/12

Abstract: A high-strength steel plate includes the following composition: 0.18 to 0.23 mass % of C; 0.1 to 0.5 mass % of Si; 1.0 to 2.0 mass % of Mn; 0.020 mass % or less of P; 0.010 mass % or less of S; 0.5 to 3.0 mass % of Ni; 0.003 to 0.10 mass % of Nb; 0.05 to 0.15 mass % of Al; 0.0003 to 0.0030 mass % of B; 0.006 mass % or less of N; and a balance composed of Fe and inevitable impurities. A weld crack sensitivity index Pcm of the high-strength steel plate is 0.36 mass % or less. The Ac3 transformation point is equal to or less than 830° C., the percentage value of a martensite structure is equal to or greater than 90%, the yield strength is equal to or greater than 1300 MPa, and the tensile strength is equal to or greater than 1400 MPa and equal to or less than 1650 MPa. A prior austenite grain size number Nγ is calculated by Nγ=−3+log2m using an average number m of crystal grains per 1 mm2 in a cross section of a sample piece of the high-strength steel plate. If the tensile strength is less than 1550 MPa, the prior austenite grain size number Nγ satisfies the formulae Nγ≧([TS]−1400)×0.004+8.0 and Nγ≧11.0, and if the tensile strength is equal to or greater than 1550 MPa, the prior austenite grain size number Nγ satisfies the formulae Nγ≧([TS]−1550)×0.008+8.6 and Nγ≦11.0, where [TS] (MPa) is the tensile strength.

Abstract translation: 高强度钢板包含以下成分：C：0.18〜0.23质量％ 0.1〜0.5质量％的Si; 1.0〜2.0质量％的Mn; 0.020质量％以下的P; 0.010质量％以下的S; 0.5〜3.0质量％的Ni; 0.003〜0.10质量％的Nb; 0.05〜0.15质量％的Al; 0.0003〜0.0030质量％ 0.006质量％以下的N; 余量由Fe和不可避免的杂质构成。 高强度钢板的焊接裂纹敏感度指数Pcm为0.36质量％以下。 Ac 3相变点等于或小于830℃，马氏体组织的百分比值等于或大于90％，屈服强度等于或大于1300MPa，拉伸强度等于 或大于1400MPa且等于或小于1650MPa。 在高强度钢板的样品片的横截面中，通过Nγ= -3 + log2m，使用每1mm 2的平均数m个晶粒计算原奥氏体晶粒尺寸数Nγ。 如果拉伸强度小于1550MPa，则原奥氏体粒径Nγ满足公式Nγ≥（[TS] -1400）×0.004 + 8.0，Nγ≥11.0，如果拉伸强度为1550以上 MPa，原奥氏体粒径数Nγ满足公式Nγ≥（[TS] -1550）×0.008 + 8.6，Nγ＆nlE; 11.0，其中[TS]（MPa）为拉伸强度。

公开(公告)号：US07695825B2

公开(公告)日：2010-04-13

申请号：US10530948

申请日：2003-10-08

Applicant: Kiyotaka Nakashima ,  Tadashi Ishikawa

Inventor： Kiyotaka Nakashima ,  Tadashi Ishikawa

IPC: B23K9/23 ,  B23K20/10 ,  B32B15/18 ,  C21D7/00

CPC classification number: B23K9/02 ,  B23K31/02 ,  B23K2103/04 ,  Y10T403/478 ,  Y10T428/12375 ,  Y10T428/12965

Abstract: A circularly welded joint featuring excellent fatigue strength obtained by welding the ends of two pieces of steel plates perpendicularly together and used for the welded structures such as buildings, ships, bridges, construction machinery and off-shore structures, a method of producing the circularly welded joints and a welded structure using the circularly welded joints are provided. A circularly welded joint is obtained by welding the ends of two pieces of steel plates perpendicularly together. Between the two pieces of the steel plates, at least the steel plate on the side on which the main stress is exerted is one that suppresses the propagation of cracks due to fatigue and, preferably, one having the compressive residual stress in the surface layer of the steel plate. When the thickness of the steel plate is denoted by t, the residual stress in the direction of main stress is the compressive residual stress over a range of not smaller than t/10 or not smaller than 3 mm in the direction of plate thickness from the circularly welded surface of the steel plate.

Abstract translation: 一种圆形焊接接头，通过将两块钢板的端部垂直地焊接在一起并用于诸如建筑物，船舶，桥梁，工程机械和离岸结构的焊接结构而获得的优异的疲劳强度，一种生产圆形焊接 提供了使用圆形焊接接头的接头和焊接结构。 通过将两块钢板的端部垂直焊接在一起，获得圆形焊接接头。 在两块钢板之间，至少施加有主应力的一侧的钢板是抑制由于疲劳引起的裂纹的传播的钢板，优选地，在表面层中具有压缩残余应力的钢板 钢板。 当钢板的厚度为t时，主应力方向的残余应力是在板厚方向上不小于t / 10或不小于3mm的范围内的压缩残余应力 钢板的圆形焊接表面。