公开(公告)号：US20180281036A1

公开(公告)日：2018-10-04

申请号：US15544690

申请日：2016-01-22

申请人： TOYO ALUMINIUM KABUSHIKI KAISHA

发明人： Akira SHINGU ,  Mitsunari OOYAGI

IPC分类号： B21B1/40 ,  C22C21/00 ,  H01L31/0224 ,  H01L51/52 ,  H01L51/00 ,  H01B1/02 ,  H01B13/00

CPC分类号： B21B1/40 ,  B21B1/22 ,  B21B3/00 ,  B21B2003/001 ,  B21B2261/14 ,  B21B2267/10 ,  C22C21/00 ,  H01B1/023 ,  H01B13/0036 ,  H01L24/50 ,  H01L31/022425 ,  H01L31/0392 ,  H01L51/0021 ,  H01L51/5206 ,  H01L51/5221 ,  H01L2251/301 ,  H01L2924/01029 ,  H01L2924/01079

摘要： An aluminum foil includes a first main surface and a second main surface located opposite to the first main surface. In at least one of the first main surface and the second main surface, a surface roughness Ra is not more than 10 nm, a surface roughness Rz is not more than 40 nm in each of a rolling direction and a direction perpendicular to the rolling direction, and the number of peak counts is not less than 10 when a reference length is 40 μm, the number of peak counts being determined from a roughness curve in at least one of the rolling direction and the direction perpendicular to the rolling direction.

公开(公告)号：US20180245176A1

公开(公告)日：2018-08-30

申请号：US15754659

申请日：2016-07-25

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Jun LI ,  Dechao XU ,  Hailing MU ,  Yusheng ZHAO ,  Yun-feng LIU

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

CPC分类号： C21D9/46 ,  B21B1/22 ,  B21B2001/221 ,  B21B2001/225 ,  B21B2001/228 ,  B32B15/012 ,  B32B15/013 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0273 ,  C21D8/0278 ,  C21D2211/002 ,  C21D2211/003 ,  C21D2211/005 ,  C21D2211/008 ,  C22C18/04 ,  C22C21/10 ,  C22C30/06 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12

摘要： An aluminium-zinc-hot-dipped and colour-coated steel plate having a 600 MPa yield strength grade and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N≤0.004%, S≤0.01%, Ti≤0.20%, Nb≤0.060%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)≥0.3%; Mn/S≥150; Nb satisfying 0.01%≤(Nb-0.22C-1.1N)≤0.06% where no Ti is contained; Ti satisfying 0.5≤Ti/C≤1.5 where no Nb is contained; and 0.04%≤(Ti+Nb)≤0.26% where Ti and Nb are added in combination. The steel plate has a yield strength of ≥600 MPa, a tensile strength of ≥650 MPa, an elongation after fracture of ≥12%, a good strength and toughness and an excellent corrosion resistance.

公开(公告)号：US20180179607A1

公开(公告)日：2018-06-28

申请号：US15579789

申请日：2016-02-18

申请人： POSCO

发明人： Ji Eon PARK ,  Ka Young CHOI ,  Mi Nam PARK

IPC分类号： C21D8/02 ,  B21B1/22 ,  B21B3/02 ,  C21D6/00 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

CPC分类号： C21D8/0273 ,  B21B1/22 ,  B21B3/02 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D7/13 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28

摘要： Provided is a ferritic stainless steel and method of manufacturing the same. The ferritic stainless steel comprises, by weight percent, 0.02% or less of carbon (C), 0.02% or less of nitrogen (N), 1.0% or less of silicon (Si), 1.20% or less of manganese (Mn), 0.05% or less of phosphorus (P), 10.0 to 25.0% of chromium (Cr), 0.5 to 2.0% of molybdenum (Mo), 0.01 to 0.30% of titanium (Ti), 0.30 to 0.70% of niobium (Nb), and the remainder consisting of iron (Fe) and other unavoidable impurities. The ferritic stainless steel comprises niobium (Nb) laves phase precipitate, and precipitate containing niobium (Nb) and carbon (C) or nitrogen (N), 30 to 70% of the precipitates are distributed in a region within 1 μm from the grain boundaries, and the average particle size of the precipitates is 0.5 μm or less.

公开(公告)号：US20180169722A1

公开(公告)日：2018-06-21

申请号：US15380265

申请日：2016-12-15

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Joseph M. Polewarczyk

IPC分类号： B21B1/22 ,  B21B27/02

CPC分类号： B21B1/22 ,  B21B27/021 ,  B21B2001/225

摘要： Disclosed are metalworking rollers for fabricating multi-gauge sheet metal parts, methods for making and methods for using such rollers, and rolling mill machines employing variable-radius metalworking rollers for fabricating multi-gauge metal components. A metalworking roller for a rolling mill machine is disclosed. The metalworking roller includes a cylindrical roller body that rotatably and drivingly connects to the rolling mill machine. An outer diameter surface spanning around the roller body circumference includes an outermost peak region and an innermost valley region recessed radially inward from the outermost peak region and elongated circumferentially around the roller body. During operation of the rolling mill machine, the outermost and innermost regions of the roller body's outer diameter surface sequentially press against and thereby modify the gauge of a metal workpiece. Each region has a respective transverse width and circumferential length extending across and around the longitudinal length and circumference, respectively, of the roller body.

公开(公告)号：US09889632B2

公开(公告)日：2018-02-13

申请号：US14879831

申请日：2015-10-09

申请人： Materion Corporation

发明人： Joseph G. Kaiser ,  Aaron M. Vodnick

IPC分类号： B32B15/01 ,  B21B1/22 ,  B23K20/04 ,  B32B3/26 ,  B32B3/30

CPC分类号： B32B15/016 ,  B21B1/22 ,  B23K20/04 ,  B32B3/266 ,  B32B3/30 ,  B32B15/01 ,  B32B15/011 ,  B32B15/012 ,  B32B2307/722

摘要： A stiff, lightweight metal laminate includes a first continuous metal layer, a second continuous metal layer, and a reduced density metal core layer disposed between the first and second continuous metal layers. The reduced density metal core layer comprises a core metal and has an average density that is less than the density of the core metal. Planar metallurgical bonds secure the first and second continuous metal layers to the reduced density metal core layer. The metal laminate may be manufactured by press rolling the reduced density metal core layer sandwiched between the two continuous metal layers, after removing or overcoating the native oxide layer on each layer surface that contacts another layer in the metal laminate.

公开(公告)号：US20170369964A1

公开(公告)日：2017-12-28

申请号：US15540855

申请日：2016-03-22

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Takashi FUJII ,  Hiromitsu DATE ,  Akira TANIYAMA ,  Takumi NISHIMOTO ,  Kenichiro TADOKORO

IPC分类号： C21D9/46 ,  B21B1/22 ,  C22C38/08 ,  C22C38/06 ,  B21B3/00 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C21D6/00 ,  C22C38/14 ,  C23G1/08 ,  C22C38/04

CPC分类号： C21D9/46 ,  B21B1/22 ,  B21B3/00 ,  B21B2001/225 ,  C21D6/001 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0463 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/14 ,  C22C38/58 ,  C23G1/08

摘要： A Si/Mn ratio of steel material components of a base material is not less than 0.27 nor more than 0.90 in mass ratio, an internal oxide layer having a thickness of not less than 1 μm nor more than 30 μm is provided right below an oxide scale of a steel sheet surface layer portion, and regarding the internal oxide layer, an internal oxide in a crystal grain of the internal oxide layer is an oxide containing Si and having a thickness of not less than 10 nm nor more than 200 nm in a crystal grain in a range of greater than 0% and 30% or less of a thickness of the internal oxide layer from an interface between the internal oxide layer and base iron toward a direction of the surface layer oxide scale, one or more branches of the internal oxide exist in a cross section of 1 μm×1 μm square, and in any crystal grain boundary having a length of 1 μm, one or more of the internal oxides in the crystal grain are connected to an internal oxide of the crystal grain boundary to form a net-like structure.

公开(公告)号：US20170348746A1

公开(公告)日：2017-12-07

申请号：US15534474

申请日：2015-12-09

申请人： Voestalpine Krems GmbH

发明人： Markus POLK

IPC分类号： B21B37/16 ,  B21B1/22

CPC分类号： B21B37/165 ,  B21B1/0805 ,  B21B1/22 ,  B21H8/00

摘要： A method for producing a thickness-profiled metal strip in which at least one opening is produced in the metal strip and in a subsequent step, the metal strip is longitudinally rolled with at least one roller that penetrates into the metal strip in some regions across its strip width and thus a thickness profiling at least in the width direction of the metal strip is produced. In order to improve the reproducibility of the method, what is proposed is that at least one hole passing through the metal strip is produced as an opening in the metal strip, over which hole the roller that penetrates into the metal strip longitudinally rolls in order to produce the thickness profiling in the width direction of the metal strip.

公开(公告)号：US20170298471A1

公开(公告)日：2017-10-19

申请号：US15516783

申请日：2015-11-02

申请人： POSCO

发明人： Hyong-Jik LEE ,  Geun-Soo RYU

IPC分类号： C21D9/52 ,  C22C38/32 ,  C22C38/28 ,  C22C38/06 ,  B21B1/22 ,  C22C38/00 ,  C21D8/06 ,  C22C38/38 ,  C22C38/02

CPC分类号： C21D9/525 ,  B21B1/22 ,  B21B2001/225 ,  C21D8/06 ,  C21D8/065 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38

摘要： Provided is a wire rod having enhanced strength and impact toughness comprising, by wt %, carbon (C): 0.05% to 0.15%, silicon (Si): 0.2% or less, manganese (Mn): 3.0% to 4.0%, phosphorus (P): 0.020% or less, sulfur (5):0.020% or less, boron (B): 0.0010% to 0.0030%, titanium (Ti): 0.010% to 0.030%, nitrogen (N): 0.0050% or less, aluminum (Al): 0.010% to 0.050%, iron (Fe) as a residual component thereof, and other unavoidable impurities. A microstructure includes bainitic ferrite in an area fraction of 90% or more, and a martensite/austenite (M/A) constituent as a residual component thereof.

公开(公告)号：US20170259313A1

公开(公告)日：2017-09-14

申请号：US15453429

申请日：2017-03-08

申请人： Novelis Inc.

发明人： Matthew J. FAIRLIE ,  Timothy F. STANISTREET ,  Carlos EBOLI ,  Hansjuerg ALDER ,  Luiz MURAD

IPC分类号： B21B37/74 ,  B21B1/22

CPC分类号： B21B37/74 ,  B21B1/22 ,  B21B37/16 ,  B21B37/28 ,  B21B38/02 ,  B21B38/04 ,  B21B38/10 ,  B21B38/12

摘要： A rolling mill control system and method includes use of sensors located between rolling mill stands to directly measure metal sheet or plate flatness, thickness profile, position, and the camber of the rolls in the mill. A feedback loop control system adjusts or adapts rolling mill control mechanisms to control the rolling process.

公开(公告)号：US20170226607A1

公开(公告)日：2017-08-10

申请号：US15496192

申请日：2017-04-25

申请人： Nisshin Steel Co., Ltd.

发明人： Satoshi TAGASHIRA ,  Masahito SUZUKI ,  Tomohiro IMANAKA

IPC分类号： C21D9/46 ,  C22C38/28 ,  C22C38/26 ,  C22C38/14 ,  C22C38/00 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/12

CPC分类号： C22C38/28 ,  B21B1/22 ,  B21B45/004 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D9/46 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/26 ,  Y02P10/212

摘要： Manufacturing a cold-rolled steel plate, having a steel slab having the chemical composition containing, on the basis of percent by mass, C from 0.03 to 0.08%, Si from 0 to 1.0%, Mn from 0.2 to 0.8%, P at 0.03% or less, S at 0.01% or less, and Al at 0.05% or less so as to satisfy the following: formula (1) and at least one of Nb from 0.03 to 0.4%, V from 0.01 to 0.3%, and Ti from 0.01 to 0.3% so as to satisfy the following formula (2), with a residue being formed of Fe and unavoidable impurities. The steel slab is heated to 1200° C. or more and hot rolled to form a hot-rolled steel plate, which is wound from 550 to 700° C. to form a hot-rolled coil, and the hot-rolled coil is cold rolled or annealed and cold rolled, obtaining cross-sectional hardness from 200 to 350 HV.