公开(公告)号：US20170335438A1

公开(公告)日：2017-11-23

申请号：US15527167

申请日：2015-11-19

Applicant: JFE Steel Corporation

Inventor： Takumi Tanaka ,  Tomonari Hiraguchi ,  Katsumi Kojima ,  Hiroki Nakamaru ,  Nobusuke Kariya

IPC: C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46 ,  C21D6/00 ,  C22C38/04 ,  B65D41/12

CPC classification number: C22C38/06 ,  B65D41/12 ,  C21D6/005 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/0068 ,  C21D9/46 ,  C21D9/48 ,  C22C38/00 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04

Abstract: A steel sheet for a crown cap has sufficient strength and formability even when the thickness thereof is reduced for use, and has a composition containing, in percent by mass, C: 0.010% to 0.025%, Si: 0.10% or less, Mn: 0.05% to 0.50%, P: 0.050% or less, S: 0.005% to 0.050%, Al: 0.020% to 0.070%, N: less than 0.0040%, and the balance being Fe and inevitable impurities, wherein yield strength after heat treatment at 210° C. for 15 minutes is as follows: the yield strength is 550 MPa or more in a rolling direction, and the yield strength in a direction 45° from the rolling direction in a rolling plane is equal to or less than the average of the yield strength in the rolling direction and the yield strength in a direction 90° from the rolling direction in the rolling plane.

公开(公告)号：US20170334024A1

公开(公告)日：2017-11-23

申请号：US15668662

申请日：2017-08-03

Applicant: Velo3D, Inc.

Inventor： Benyamin BULLER ,  Erel MILSHTEIN ,  Thai Cheng CHUA

IPC: B23K26/346 ,  B33Y10/00 ,  C22C38/58 ,  C22C38/44 ,  C22C38/02 ,  C22C38/00 ,  H05B6/68 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/342 ,  B23K26/70 ,  B29C64/194 ,  B29C64/171 ,  B29C64/188 ,  C04B35/64 ,  C04B35/565 ,  C04B35/56 ,  C04B35/52 ,  B28B17/00 ,  B28B1/00 ,  B23K26/32 ,  B23K26/22 ,  B23K26/16 ,  B23K26/12 ,  B23K26/08 ,  B23K15/02 ,  B23K15/00 ,  B23K10/02 ,  B23K10/00 ,  B22F3/24 ,  B22F3/105 ,  B22F3/00 ,  B29C64/165 ,  B29C64/106 ,  H05B6/80 ,  B23K103/00 ,  B29K105/00 ,  B22F7/00

CPC classification number: B23K26/346 ,  B22F3/003 ,  B22F3/004 ,  B22F3/105 ,  B22F3/1055 ,  B22F3/24 ,  B22F7/00 ,  B22F2003/1054 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/1058 ,  B22F2003/1059 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  B23K10/006 ,  B23K10/027 ,  B23K15/002 ,  B23K15/0026 ,  B23K15/0086 ,  B23K15/0093 ,  B23K15/02 ,  B23K26/0853 ,  B23K26/1224 ,  B23K26/123 ,  B23K26/144 ,  B23K26/16 ,  B23K26/22 ,  B23K26/32 ,  B23K26/342 ,  B23K26/70 ,  B23K26/702 ,  B23K2103/50 ,  B23K2103/52 ,  B28B1/001 ,  B28B17/0072 ,  B28B17/0081 ,  B29C64/106 ,  B29C64/153 ,  B29C64/165 ,  B29C64/171 ,  B29C64/188 ,  B29C64/194 ,  B29C64/20 ,  B29C64/214 ,  B29C64/255 ,  B29C64/264 ,  B29C64/35 ,  B29C64/386 ,  B29C64/40 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  C04B35/522 ,  C04B35/5626 ,  C04B35/565 ,  C04B35/64 ,  C04B2235/6026 ,  C22C38/00 ,  C22C38/02 ,  C22C38/44 ,  C22C38/58 ,  H05B6/68 ,  H05B6/80 ,  Y02P10/24 ,  Y02P10/295 ,  B22F2202/05 ,  B22F2201/20 ,  B22F2202/01

Abstract: The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.

公开(公告)号：US09824803B2

公开(公告)日：2017-11-21

申请号：US14344269

申请日：2012-09-12

Applicant: Tomonori Fujinaka ,  Nobuyoshi Sakakibara

Inventor： Tomonori Fujinaka ,  Nobuyoshi Sakakibara

IPC: H01F1/01 ,  C22C38/00 ,  F25B21/00 ,  C22C38/02 ,  C22C33/02 ,  B22F3/11 ,  B22F3/105

CPC classification number: H01F1/015 ,  B22F3/11 ,  B22F2003/1051 ,  B22F2202/06 ,  B22F2202/13 ,  C22C33/02 ,  C22C33/0278 ,  C22C38/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C2202/02 ,  F25B21/00 ,  F25B2321/002

Abstract: A magnetic refrigeration material includes an alloy represented by a composition formula of La(Fe, Si)13H, and the alloy includes α-Fe by a weight ratio lower than 1 wt % and a plurality of pores so that a packing fraction of the alloy is within a range from 85% to 99%.

公开(公告)号：US09816165B2

公开(公告)日：2017-11-14

申请号：US14418417

申请日：2013-01-31

Applicant: Baoshan Iron & Steel Co., Ltd.

Inventor： Hongbin Li ,  Liandeng Yao ,  Yuchuan Miao

IPC: C22C38/14 ,  C22C38/32 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C21D1/60 ,  C21D6/00 ,  C21D9/46

CPC classification number: C22C38/32 ,  C21D1/60 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28

Abstract: The invention provides a wear-resistant steel plate, which has the following chemical composition (wt. %): C: 0.22-0.35%, Si: 0.10-0.40%, Mn: 0.60-1.35%, P: ≦0.015%, S: ≦0.010%, Nb: 0.010-0.040%, Al: 0.010-0.080%, B: 0.0006-0.0014%, Ti: 0.005-0.050%, Ca: 0.0010-0.0080%, V≦0.080%, Cr≦0.60%, W≦1.00 wt. %, N≦0.0080%, O≦0.0060%, H≦0.0004%, wherein 0.025%≦Nb+Ti≦0.080%, 0.030%≦Al+Ti≦0.12%, and the balance of Fe and unavoidable impurities. The method of manufacturing the wear-resistant steel plate comprises the steps of smelting, casting, rolling, post-rolling direct cooling and the like. The wear-resistant steel plate obtained from the above composition and process has high strength, high hardness, good low-temperature toughness, and excellent machinability, and is suitable for quick-wear devices in engineering and mining machinery, such as bucket and scraper transporter, etc.

公开(公告)号：US09815098B2

公开(公告)日：2017-11-14

申请号：US14912727

申请日：2014-09-17

Applicant: HITACHI METALS, LTD.

Inventor： Toshiyuki Hattori ,  Nozomu Oda ,  Yasunori Nozaki

IPC: B21B27/02 ,  B21B27/03 ,  B22D13/02 ,  C22C37/00 ,  C22C37/04 ,  C22C37/08 ,  C22C38/00 ,  C22C38/60 ,  B22D19/16 ,  B21B1/26

CPC classification number: B21B27/032 ,  B21B1/26 ,  B21B27/02 ,  B21B2267/24 ,  B22D13/02 ,  B22D13/026 ,  B22D19/16 ,  C22C37/00 ,  C22C37/04 ,  C22C37/08 ,  C22C38/00 ,  C22C38/60

Abstract: A centrifugally cast, hot-rolling composite roll comprising an outer layer formed by a centrifugal casting method, and an inner layer made of ductile cast iron and integrally fused to the outer layer; the outer layer having a chemical composition comprising by mass 1.6-3% of C, 0.3-2.5% of Si, 0.3-2.5% of Mn, 0.1-5% of Ni, 2.8-7% of Cr, 1.8-6% of Mo, 3.3-6.5% of V, and 0.02-0.12% of B (or 0.01-0.12% of B, and 0.05-02% of S), the balance being Fe and inevitable impurities, and meeting the relation expressed by Cr/(Mo+0.5W)≧−2/3[C−0.2(V+1.19Nb)]+11/6, wherein W=0, and Nb=0, when W and Nb are not contained, and containing by area 1-15% of MC carbide, 0.5-20% of carboboride, and 1-25% of Cr-based carbide.

公开(公告)号：US20170320137A1

公开(公告)日：2017-11-09

申请号：US15535282

申请日：2015-12-08

Applicant: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.

Inventor： Yasunori Sonoda ,  Ryota Take

IPC: B22F3/16

CPC classification number: B22F3/162 ,  B22F1/007 ,  B22F2301/35 ,  B22F2998/10 ,  C22C38/00 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/22 ,  C22C38/44 ,  B22F3/02 ,  B23B1/00 ,  B22F3/10

Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.

公开(公告)号：US09809875B2

公开(公告)日：2017-11-07

申请号：US14422825

申请日：2013-10-18

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Masayuki Hashimura ,  Masafumi Miyazaki ,  Takashi Fujita ,  Hideaki Yamamura

IPC: C22C38/28 ,  C22C38/50 ,  C22C38/14 ,  C21C7/10 ,  C22C38/00 ,  C21D1/06 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/40 ,  C21C7/064 ,  C22C38/42 ,  C22C38/44 ,  C21D9/40

CPC classification number: C22C38/50 ,  C21C7/064 ,  C21C7/10 ,  C21D1/06 ,  C21D9/40 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44

Abstract: A case hardening steel includes as a chemical composition, by mass %, C: 0.10% to 0.40%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Cr: 0.35% to 2.0%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%, Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The case hardening steel also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.

公开(公告)号：US20170316856A1

公开(公告)日：2017-11-02

申请号：US15526216

申请日：2015-11-02

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Kazunari Shimauchi ,  Toru Maeda ,  Motoi Nagasawa

IPC: H01F1/059 ,  H01F7/02 ,  C23C8/26 ,  C22C38/00 ,  B22F9/04 ,  B22F9/02 ,  B22F3/03 ,  H01F41/02 ,  B22F1/00

CPC classification number: H01F1/059 ,  B22F1/00 ,  B22F1/0011 ,  B22F3/00 ,  B22F3/03 ,  B22F3/11 ,  B22F9/00 ,  B22F9/023 ,  B22F9/04 ,  C22C1/08 ,  C22C33/02 ,  C22C38/00 ,  C22C38/005 ,  C23C8/26 ,  C23C8/28 ,  H01F1/0556 ,  H01F1/0596 ,  H01F7/02 ,  H01F41/0253

Abstract: There is provided a compact for a magnet which can produce a magnetic member having high coercive force. The compact for a magnet is produced by compression-molding a rare earth-iron-based alloy powder containing a plurality of particles of a rare earth-iron-based alloy containing a rare earth element and iron, wherein the rare earth-iron-based alloy satisfies configurations (a) to (c) below and has 5% by volume or more and 20% by volume or less of voids formed therein. (a) Having a structure containing 10% by mass or more and 30% by mass or less of Sm, 10% by mass or less of Mn, and the balance consisting of Fe and inevitable impurities. (b) A composition, Sm2MNxFe17-x (x=0.1 or more and 2.5 or less). (c) An average crystal grain diameter of 700 nm or less.

公开(公告)号：US20170314087A1

公开(公告)日：2017-11-02

申请号：US15520243

申请日：2015-10-20

Applicant: ArcelorMittal

Inventor： Elke LEUNIS ,  Tom VAN DE PUTTE ,  Sigrid JACOBS ,  Wahib SAIKALY

IPC: C21D8/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46 ,  C22C38/14

CPC classification number: C21D8/1222 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/1272 ,  C21D9/46 ,  C21D9/56 ,  C21D2211/005 ,  C22C38/00 ,  C22C38/001 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/38 ,  H01F1/16

Abstract: A method of production non grain-oriented Fe—Si steel sheet is provided. The method includes the steps of melting a steel composition that contains in weight percentage: C≦0.006, 2.0≦Si≦5.0, 0.1≦Al≦3.0, 0.1≦Mn≦3.0, N≦0.006, 0.04≦Sn≦0.2, S≦0.005, P≦0.2, Ti≦0.01, the balance being Fe and other inevitable impurities, casting said melt into a slab, reheating said slab, hot rolling said slab, coiling said hot rolled steel, optionally annealing the hot rolled steel, cold rolling, annealing and cooling the cold rolled steel down to room temperature.

公开(公告)号：US20170314086A1

公开(公告)日：2017-11-02

申请号：US15517618

申请日：2016-01-07

Applicant: HITACHI METALS, LTD.

Inventor： Tatsuya SHOUJI ,  Yukio SHINJI ,  Katsufumi KURODA

IPC: C21D7/13 ,  C21D6/00 ,  B21J13/02 ,  C21D8/00 ,  C22C38/24 ,  C22C38/22

CPC classification number: C21D7/13 ,  B21J13/02 ,  C21D1/18 ,  C21D1/22 ,  C21D6/002 ,  C21D8/005 ,  C21D2211/004 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/36

Abstract: Provided is a cold work tool material capable of reducing dimensional changes which occur, due to heat treatment, in the longitudinal direction of the material during quenching and tempering. This cold work tool material is drawn through hot working, has an annealed structure including carbides, and is used after being quenched and tempered, wherein, in the annealed structure which is formed in a cross section parallel to a drawing direction due to the hot working of the cold work tool material, the standard deviation in the degree of orientation of carbides Oc, as determined by equation (1) below, is 6.0 or more for carbides having a circle equivalent diameter of 5.0 μm or greater as observed in the annealed structure in the cross section at right angle to a direction perpendicular to the drawing direction. Oc=D×θ . . . (1), where D represents the circle equivalent diameter (μm) of the carbide, and θ represents the angle (rad) between the major axis of an approximate ellipse of the carbide and the drawing direction. A cold work tool using the cold work tool material and a method for manufacturing the same are also provided.