公开(公告)号：US09583243B2

公开(公告)日：2017-02-28

申请号：US13048321

申请日：2011-03-15

Applicant: Yosuke Horiuchi ,  Shinya Sakurada ,  Keiko Okamoto ,  Masaya Hagiwara

Inventor： Yosuke Horiuchi ,  Shinya Sakurada ,  Keiko Okamoto ,  Masaya Hagiwara

IPC: B22F3/12 ,  H01F7/02 ,  B22F3/24 ,  H01F1/059 ,  C22C1/02 ,  C22C28/00 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C21D8/12

CPC classification number: H01F1/0596 ,  C21D8/1205 ,  C22C1/02 ,  C22C28/00 ,  C22C33/04 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02

Abstract: In an embodiment, a permanent magnet includes a composition of R (FepMqCur(Co1-sAs)1-p-q-r)z (R: rare earth element, M: Ti, Zr, Hf, A: Ni, V, Cr, Mn, Al, Si, Ga, Nb, Ta, W, 0.05≦p 0.6, 0.005≦q≦0.1, 0.01≦r≦0.15, 0≦s≦0.2, 4≦z≦9). The permanent magnet includes a two-phase structure of a Th2Zn17 crystal phase and a copper-rich phase. An average interval between the copper-rich phases in a cross section including a crystal c axis of the Th2Zn17 crystal phase is in a range of over 120 nm and less than 500 nm.

Abstract translation: 在一个实施方案中，永磁体包括R（FepMqCur（Co1-sAs）1-pqr）z（R：稀土元素，M：Ti，Zr，Hf，A：Ni，V，Cr，Mn，Al ，Si，Ga，Nb，Ta，W，0.05≤p0.6,0.005≤q≤0.1,0.01≤r≤0.15,0≤s≤0.2,4≤z≤9）。 永磁体包括Th2Zn17晶相和富铜相的两相结构。 在包含Th2Zn17结晶相的晶体c轴的截面中，富铜相间的平均间隔在120nm以上且小于500nm的范围内。

公开(公告)号：US20160193641A1

公开(公告)日：2016-07-07

申请号：US14911601

申请日：2014-08-07

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Hideki HAMATANI ,  Kenichi YAMAMOTO ,  Masafumi MIYAZAKI ,  Masaki INA ,  Takaaki Fukushi

IPC: B21C37/08 ,  C22C38/26 ,  C22C38/24 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/14 ,  C21D8/10 ,  B22D11/00 ,  B23K11/087 ,  B23K11/34 ,  C22C33/04 ,  C22C38/28

CPC classification number: B21C37/08 ,  B22D11/001 ,  B23K11/0873 ,  B23K11/34 ,  C21D8/105 ,  C21D9/08 ,  C21D9/14 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28

Abstract: Electric resistance welded steel pipe excellent in weld zone quality suitable for oil country tubular goods and line pipe wherein steel plate forming the base metal of the electric resistance welded steel pipe has a predetermined chemical composition, the contents of Ca, O, S, Ce, La, and Al satisfy XCASO = ( Ca O + Ca S + 0.285  Ce + La O + 0.285  Ce + La S ) × ( Al Ca ) > 78 the oxide-based inclusions in the weld zone of the electric resistance welded steel pipe contains one or both of Ce and La, and the long axis/short axis of the oxide-based inclusions is 2.5 or less.

Abstract translation: 电焊焊接钢管焊接区质量优良，适用于油罐管和管线管，其中形成电阻焊钢管基体的钢板具有预定的化学成分，Ca，O，S，Ce， La和Al满足电阻焊钢的焊接区域中的氧化物系夹杂物的XCASO =（CaO + Ca S + 0.285 Ce Ce + La O + 0.285 Ce + La S）×（Al Ca）> 78 管含有Ce和La中的一种或两种，氧化物系夹杂物的长轴/短轴为2.5以下。

公开(公告)号：US20160108488A1

公开(公告)日：2016-04-21

申请号：US14638385

申请日：2015-03-04

Applicant: SMS Siemag AG

Inventor： Ingo Schuster ,  Christian Klinkenberg ,  Andreas Boettcher

IPC: C21D8/02 ,  C21D1/74 ,  C21D1/42 ,  B22D11/00 ,  C22C33/04 ,  C22C33/00 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C23C8/26 ,  C21D3/04 ,  C21D6/00

CPC classification number: C21D8/0205 ,  B22D11/001 ,  C21D1/42 ,  C21D1/74 ,  C21D3/04 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0268 ,  C21D8/0273 ,  C21D8/0284 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1272 ,  C22C33/006 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C23C8/26

Abstract: With a process for producing grain-oriented electrical steel strip by means of thin slab continuous casting, comprising the following process steps: a) smelting a steel with a smelt which, in addition to iron (Fe) and unavoidable impurities, contains Si: 2.00-4.00 wt %, C: 0.025-0.100 wt %, Mn: 0.060-0.500 wt %, Cu: 0.200-0.550 wt %, Alsl: 0.010-0.030 wt %, S: 1150° C., forming a finished steel strip having a pronounced Goss texture, and m) coating the finished steel strip which has undergone secondary recrystallization annealing with an electrically insulating layer and then stress-free annealing or stress-relief annealing the coated finished steel strip, an improved process for producing grain-oriented electrical steel strip by means of thin slab continuous casting is provided, by which it is possible to introduce an inhibitor into the steel strip, which controls secondary grain growth during secondary recrystallization annealing in a high-temperature bell-type annealing furnace.

公开(公告)号：US20160017449A1

公开(公告)日：2016-01-21

申请号：US14769647

申请日：2014-03-19

Applicant: BAOSHAN IRON & STEEL CO., LTD.

Inventor： Huanrong Wang ,  Zigang Li ,  Wei Wang ,  Jiansu Zhang ,  Jianye Li

IPC: C21D1/84 ,  C22C38/06 ,  C22C38/04 ,  C21D6/00 ,  C22C38/00 ,  C22C33/04 ,  C21D8/00 ,  C21D7/13 ,  C22C38/14 ,  C22C38/02

Abstract: A 700 Mpa-level high-strength hot rolling Q&P steel and the method of manufacturing the same, which steel has the chemical compositions in weight percentage as follows: C: 0.15%˜0.40%; Si: 1.0%˜2.0%; Mn: 1.5%˜3.0%; P: less than or equal to 0.015%; S: less than or equal to 0.005%; Al: 0.3%˜1.0%; N: less than or equal to 0.006%; Ti: 0.005%˜0.015%, the remainders being Fe; it having a yield strength of more than or equal to 700 Mpa, a tensile strength of more than or equal to 1300 Mpa and an elongation rate of more than 10%. Through reasonable design on the compositions and on the basis of the compositions of common C—Mn steel, the present invention improves the content of Si to restrict the precipitation of cementite, performs the micro-Ti treatment to refine the austenite grains, and improves the content of Al to quicken the austenite transformation dynamics during the air cooling process; at the same time, combines the hot rolling process with the staged cooling process to obtain the structures of proeutectoid ferrite plus martensite plus retained austenite and reduces the cost of alloy elements substantially.

Abstract translation: 一种700Mpa级高强度热轧Q＆P钢及其制造方法，该钢的重量百分比的化学组成如下：C：0.15％〜0.40％; Si：1.0％〜2.0％; Mn：1.5％〜3.0％; P：小于等于0.015％; S：小于等于0.005％; Al：0.3％〜1.0％; N：小于等于0.006％; Ti：0.005％〜0.015％，余量为Fe; 其屈服强度大于或等于700Mpa，拉伸强度大于等于1300Mpa，伸长率大于10％。 通过对组合物的合理设计，并根据普通C-Mn钢的组成，本发明改善了Si含量，限制了渗碳体的析出，进行了微Ti处理，使奥氏体晶粒细化，改善了 Al的含量在空气冷却过程中加快奥氏体转变动力学; 同时将热轧工艺与分阶段冷却工艺相结合，获得了先共析铁素体加马氏体加残留奥氏体的结构，大大降低了合金元素的成本。

公开(公告)号：US09068253B2

公开(公告)日：2015-06-30

申请号：US13833478

申请日：2013-03-15

Applicant: Kobe Steel, Ltd.

Inventor： Taku Kato ,  Hiroki Imamura ,  Shinsuke Sato

IPC: C22C38/26 ,  C22B9/00 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C33/04 ,  C21D6/00 ,  C21D8/02

CPC classification number: C22C38/26 ,  C21D6/005 ,  C21D8/02 ,  C22B9/00 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  Y10T428/12

Abstract: A steel plate is provided which has excellent hydrogen induced cracking resistance. The steel plate is suitable for use in a line pipe. The steel plate satisfies a predetermined composition. In a composition of an inclusion contained in the steel and having a width of 1 μm or more, the ratio (RES/CaS) of the mass of an REM sulfide (RES) to that of a Ca sulfide (CaS) is equal to or more than 0.05, a Zr content of the inclusion is in a range of 5 to 60%, and a Nb content of the inclusion is 5% or less.

Abstract translation: 提供了具有优异的氢诱导开裂性的钢板。 钢板适用于管线管道。 钢板满足预定的组成。 在包含在钢中并且宽度为1μm以上的夹杂物的组成中，REM硫化物（RES）的质量与硫化钙（CaS）的质量的比（RES / CaS）等于或等于 大于0.05，夹杂物的Zr含量在5〜60％的范围内，包含物的Nb含量为5％以下。

公开(公告)号：US07717976B2

公开(公告)日：2010-05-18

申请号：US11012030

申请日：2004-12-14

Applicant: C. Larry Coe ,  Alan T. Gorton

Inventor： C. Larry Coe ,  Alan T. Gorton

IPC: C22C33/04 ,  C21C7/00

CPC classification number: C22C33/04 ,  C22C38/001

Abstract: A method for making a strain aging resistant steel comprises adding boron to the steel, wherein substantially all of the boron in the steel forms boron nitride. A method for making steel comprises adding a nitride-forming element to the steel to lower the free nitrogen content of the steel to a free nitrogen content specification. A high-carbon steel contains boron nitride, wherein the free nitrogen content of the steel is less than 80 ppm. A strain aging resistant steel wherein the carbon content of the steel is between about 0.54 percent and about 0.75 percent.

Abstract translation: 制造耐老化钢的方法包括向钢中加入硼，其中钢中基本上所有的硼形成氮化硼。 制造钢的方法包括向钢中添加氮化物形成元素以将钢的游离氮含量降低至游离氮含量规格。 高碳钢含有氮化硼，其中钢的游离氮含量小于80ppm。 耐老化钢，其中钢的碳含量在约0.54％至约0.75％之间。

公开(公告)号：US6112669A

公开(公告)日：2000-09-05

申请号：US092301

申请日：1998-06-05

Applicant: Brian Mravic ,  Peter W. Robinson

Inventor： Brian Mravic ,  Peter W. Robinson

IPC: F42B12/74 ,  C22C1/02 ,  C22C33/04

CPC classification number: F42B12/74

Abstract: A lead-free projectile made from a composition containing about 5-25% by weight tungsten and more than about 97% by weight tungsten plus iron.

Abstract translation: 由含有约5-25重量％钨和大于约97重量％钨和铁的组合物制成的无铅射弹。

公开(公告)号：US6030434A

公开(公告)日：2000-02-29

申请号：US282721

申请日：1999-03-31

Applicant: Henrique Machado Zuloaga ,  Oscar G. Dam

Inventor： Henrique Machado Zuloaga ,  Oscar G. Dam

IPC: C21B13/00 ,  C21B13/02 ,  C22B1/24 ,  C22B1/245 ,  C22B1/248 ,  C22C33/02 ,  C22C33/04 ,  C22B1/14

CPC classification number: C22B1/248 ,  C22B1/24 ,  C22B1/245 ,  Y02P10/122

Abstract: A method for making iron-alloy briquettes, includes the steps of: providing hot metallized iron particles having a temperature of at least about 650.degree. C. and an initial degree of metallization of at least about 90% (wt.); providing an additive selected from the group consisting of ferroalloy powder, metal-containing ash and mixtures thereof, wherein the additive contains an alloying metal; mixing the iron particles and the additive to provide a mixture of the particles and the additive; and forming the mixture into briquettes containing the alloying metal.

Abstract translation: 制备铁合金团块的方法包括以下步骤：提供具有至少约650℃的温度和至少约90％（wt。）的初始金属化度的热金属化铁颗粒; 提供选自铁合金粉末，含金属灰和其混合物的添加剂，其中所述添加剂含有合金金属; 混合铁颗粒和添加剂以提供颗粒和添加剂的混合物; 并将混合物形成含有合金金属的团块。

公开(公告)号：US5855844A

公开(公告)日：1999-01-05

申请号：US907305

申请日：1997-08-06

Applicant: James W. Martin

Inventor： James W. Martin

IPC: C22C38/00 ,  C22C33/04 ,  C22C38/50 ,  C22C38/54

CPC classification number: C22C38/50

Abstract: A precipitation hardenable, martensitic stainless steel alloy is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.03 max Mn 1.0 max Si 0.75 max P 0.040 max S 0.020 max Cr 10-13 Ni 10.5-11.6 Ti 1.5-1.8 Mo 0.25-1.5 Cu 0.95 max Al 0.25 max Nb 0.3 max B 0.010 max N 0.030 max Ce 0.001-0.025______________________________________the balance essentially iron. The disclosed alloy provides a unique combination of stress-corrosion cracking resistance, strength, and notch toughness even when used to form large cross-section pieces. A method of making such an alloy includes adding cerium during the melting process in a amount sufficient to yield an effective amount of cerium in the alloy product.

Abstract translation: 公开了一种可沉淀硬化的马氏体不锈钢合金，其基本上以重量百分比计，约-C 0.03最大--Mn 1.0最大 - Si 0.75最大 - P 0.040最大 - S 0.020最大 - Cr 10-13-Ni 10.5-11.6- Ti 1.5-1.8 - Mo 0.25-1.5 - Cu 0.95最大 - Al 0.25最大 - Nb 0.3最大 - B 0.010最大 - N 0.030最大 - Ce 0.001-0.025 - 余量基本上是铁。 所公开的合金即使在形成大截面片时也提供了耐应力腐蚀开裂性，强度和切口韧性的独特组合。 制造这种合金的方法包括在熔融过程中以足以在合金产品中产生有效量的铈的量添加铈。

公开(公告)号：US5509975A

公开(公告)日：1996-04-23

申请号：US312847

申请日：1994-09-27

Applicant: Akinori Kojima ,  Katsuaki Hangai ,  Shoji Yoshida ,  Akihiro Makino ,  Tsuyoshi Masumoto ,  Akihsia Inoue

Inventor： Akinori Kojima ,  Katsuaki Hangai ,  Shoji Yoshida ,  Akihiro Makino ,  Tsuyoshi Masumoto ,  Akihsia Inoue

IPC: B22F9/04 ,  B22F3/00 ,  C22C33/02 ,  C22C33/04 ,  C22C38/00 ,  C22C38/14 ,  C22C45/02 ,  H01F1/153 ,  H01F1/12

CPC classification number: B22F3/006 ,  H01F1/15308 ,  H01F1/15341 ,  H01F1/1535

Abstract: A soft magnetic bulky alloy according to the present invention is obtained by forming under pressure a powder and granule material mainly made of a Fe-M-B based amorphous alloy containing Fe, B and M where M is at least one element selected from a group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W. In the soft magnetic bulky alloy, an amorphous alloy phase and a bcc phase with fine grain sizes of 30 nm or below are present in a mixed state, or the bcc phase with fine grain sizes of 30 nm or below is mainly present. The present invention also discloses a method of manufacturing such a soft magnetic bulky alloy.

Abstract translation: 通过在压力下形成主要由含有Fe，B和M的Fe-MB基非晶态合金制成的粉末和颗粒材料，得到本发明的软磁性体积合金，其中M为选自以下的至少一种元素： Ti，Zr，Hf，V，Nb，Ta，Mo和W.在软磁膨胀合金中，晶粒尺寸为30nm以下的非晶合金相和bcc相以混合状态存在，或bcc 主要存在30nm以下的细粒度的相。 本发明还公开了一种制造这种软磁体积合金的方法。