公开(公告)号：US09934894B2

公开(公告)日：2018-04-03

申请号：US14884253

申请日：2015-10-15

Applicant: Nippon Steel & Sumitomo Metal Corporation

Inventor： Shuichi Yamazaki ,  Takeshi Kubota ,  Yousuke Kurosaki ,  Masahiro Fujikura ,  Takahide Shimazu

IPC: C23C8/10 ,  H01F1/18 ,  H01F1/147 ,  C21D8/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C8/18 ,  C23C22/74 ,  C23C24/00 ,  C23C28/00 ,  C21D1/26 ,  C21D6/00 ,  C22C38/34 ,  C23C22/07 ,  C23C22/50 ,  H01F41/32

CPC classification number: H01F1/14783 ,  C21D1/26 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1244 ,  C21D8/1283 ,  C21D8/1288 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C23C8/10 ,  C23C8/18 ,  C23C22/07 ,  C23C22/50 ,  C23C22/74 ,  C23C24/00 ,  C23C28/00 ,  H01F1/18 ,  H01F41/32

Abstract: A manufacturing method of a non-oriented electrical steel sheet includes: performing finish annealing of a cold-rolled steel strip; and forming a tension-applying type insulating film of not less than 1 g/m2 and not more than 6 g/m2 on a surface of the cold-rolled steel strip. The performing the finish annealing includes forming an oxide layer containing Al2O3 or (Al, Cr)2O3 and having a thickness of not less than 0.01 μm and not more than 0.5 μm on the surface of the cold-rolled steel strip with setting a temperature of the cold-rolled steel strip to not lower than 800° C. and not higher than 1100° C. in an atmosphere where when the total content of Si and Al of the cold-rolled steel strip is represented as X (mass %), a partial pressure ratio of water vapor to hydrogen is equal to or less than 0.005×X2.

公开(公告)号：US20170365381A1

公开(公告)日：2017-12-21

申请号：US15546387

申请日：2016-01-22

Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： Jian-Ping WANG ,  YanFeng JIANG

IPC: H01F1/047 ,  H01F41/02 ,  H01F1/00

CPC classification number: H01F1/047 ,  C22C38/001 ,  C23C8/02 ,  C23C8/18 ,  C23C8/24 ,  C23C8/26 ,  C23C8/60 ,  C23C8/80 ,  H01F1/0063 ,  H01F41/0253

Abstract: A permanent magnet may include a Fe16N2 phase in a strained state. In some examples, strain may be preserved within the permanent magnet by a technique that includes etching an iron nitride-containing workpiece including Fe16N2 to introduce texture, straining the workpiece, and annealing the workpiece. In some examples, strain may be preserved within the permanent magnet by a technique that includes applying at a first temperature a layer of material to an iron nitride-containing workpiece including Fe16N2, and bringing the layer of material and the iron nitride-containing workpiece to a second temperature, where the material has a different coefficient of thermal expansion than the iron nitride-containing workpiece. A permanent magnet including an Fe16N2 phase with preserved strain also is disclosed.

公开(公告)号：US09598773B2

公开(公告)日：2017-03-21

申请号：US14396210

申请日：2013-04-23

Applicant: NISSHIN STEEL CO., LTD.

Inventor： Tadashi Nakano ,  Masaya Yamamoto ,  Hirofumi Taketsu

IPC: C23C8/10 ,  C23C22/53 ,  C23C8/02 ,  C23C22/05 ,  C23C2/06 ,  C22C18/00 ,  C22C18/04 ,  C23C28/00 ,  C23C2/26 ,  C23C8/18 ,  B32B15/01 ,  C22C38/00 ,  C23C22/73 ,  C23C22/82 ,  C22C1/02 ,  C23C2/12

CPC classification number: C23C22/05 ,  B32B15/013 ,  C22C1/02 ,  C22C18/00 ,  C22C18/04 ,  C22C38/00 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C8/02 ,  C23C8/18 ,  C23C22/73 ,  C23C22/82 ,  C23C28/00 ,  C23C28/321 ,  C23C28/3225 ,  C23C28/34 ,  C23C28/345 ,  C23C2222/00

Abstract: The present invention pertains to a method for producing a black-plated steel sheet capable of being blackened in a short amount of time, and exhibiting an excellent ability to maintain a black appearance after processing. As an original sheet, the sheet used is a Zn-plating steel sheet which contains molten Al and Mg and has a Zn-plating layer containing molten Al and Mg, containing Al in the amount of 1.0-22.0 mass %, inclusive, and containing Mg in the amount of 1.5-10.0 mass %, inclusive. The plating layer is blackened by causing the molten-plating steel sheet to contact water vapor inside a tightly sealed container. When doing so, the concentration of oxygen inside the tightly sealed container is 13% or less.

公开(公告)号：US09493860B2

公开(公告)日：2016-11-15

申请号：US14390058

申请日：2013-03-28

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Manabu Kanzaki ,  Yasuyoshi Hidaka ,  Yasuhiro Masaki ,  Akihiro Uehira ,  Osamu Miyahara

IPC: C22C19/05 ,  G21D1/00 ,  C23C8/14 ,  C23C8/18 ,  C22C38/00 ,  C22F1/00 ,  C22F1/10 ,  F22B37/10 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/50 ,  C21D6/00

CPC classification number: C22C19/058 ,  C21D6/004 ,  C22C19/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/50 ,  C22F1/00 ,  C22F1/10 ,  C23C8/14 ,  C23C8/18 ,  F22B37/107 ,  G21D1/00 ,  G21D1/006 ,  Y02E30/40 ,  Y10T428/265

Abstract: There is provided a chromium-containing austenitic alloy wherein at least one surface of the surfaces of the alloy has a continuous chromium oxide film with a thickness of 5 nm or more and less than 50 nm. A maximum current density determined by a critical passivation current density method is 0.1 μA/cm2 or less when the chromium oxide film is continuous. A chemical composition of a base metal preferably consists of, by mass percent, C: 0.15% or less, Si: 1.00% or less, Mn: 2.0% or less, P: 0.030% or less, S: 0.030% or less, Cr: 10.0 to 40.0%, Ni: 8.0 to 80.0%, Ti: 0.5% or less, Cu: 0.6% or less, Al: 0.5% or less, and N: 0.20% or less, the balance being Fe and impurities.

Abstract translation: 提供了含铬奥氏体合金，其中合金表面的至少一个表面具有厚度为5nm以上且小于50nm的连续的氧化铬膜。 当氧化铬膜连续时，由临界钝化电流密度法确定的最大电流密度为0.1μA/ cm 2以下。 贱金属的化学成分优选以质量％计含有C：0.15％以下，Si：1.00％以下，Mn：2.0％以下，P：0.030％以下，S：0.030％以下， Cr：10.0〜40.0％，Ni：8.0〜80.0％，Ti：0.5％以下，Cu：0.6％以下，Al：0.5％以下，N：0.20％以下，余量为Fe和杂质。

公开(公告)号：US20160258687A1

公开(公告)日：2016-09-08

申请号：US15042550

申请日：2016-02-12

Applicant: NOVA Chemicals (International) S.A.

Inventor： Vasily Simanzhenkov ,  Michel Berghmans ,  Hany Iskandar Farag

IPC: F27D7/02 ,  C21B13/00

CPC classification number: F27D7/02 ,  C21B13/0033 ,  C21B13/02 ,  C21B2100/44 ,  C21B2100/60 ,  C21D6/00 ,  C22F1/02 ,  C23C8/18 ,  F27D2007/023

Abstract: In the reduction of iron oxides to iron at temperatures greater than about 700° C. the propensity for the formation of coke in the duct work between furnaces is reduced by using steel having a surface comprising a spinel of the formula MnxCr3-xO4 wherein x is from 0.5 to 2.

Abstract translation: 在大于约700℃的温度下将铁氧化物还原成铁的情况下，通过使用具有包含式Mn x Cr 3-x O 4的尖晶石的表面的钢来减少在炉之间形成焦炭的倾向，其中x为 从0.5到2。

公开(公告)号：US20160168720A1

公开(公告)日：2016-06-16

申请号：US14584249

申请日：2014-12-29

Applicant: Solidia Technologies, Inc.

Inventor： Jitendra Jain ,  Vahit Atakan

IPC: C23C22/05

CPC classification number: C23C22/05 ,  C04B20/107 ,  C04B28/04 ,  C22C47/04 ,  C23C8/18 ,  C04B32/02

Abstract: The invention provides novel methods for anticorrosive protection of iron or steel surfaces, such as on embedded iron or steel reinforcement components in composite materials and on steel surfaces of piles and vessels. The unique siderite coating formed during a carbonation curing possesses excellent anticorrosive properties and is suitable for improving the overall service life of coated objects.

Abstract translation: 本发明提供了用于铁或钢表面的防腐保护的新方法，例如在复合材料中的嵌入式铁或钢增强部件以及桩和船的钢表面上。 在碳酸化固化过程中形成的独特的菱铁矿涂层具有优异的防腐蚀性能，适用于提高涂层物体的整体使用寿命。

公开(公告)号：US20160138516A1

公开(公告)日：2016-05-19

申请号：US14898382

申请日：2014-06-13

Applicant: KS KOLBENSCHMIDT GMBH

Inventor： Herbert Moding

IPC: F02F3/12 ,  C23C14/16 ,  C23C14/08 ,  C23C4/11 ,  C23C8/18 ,  C23C16/06 ,  C23C16/40 ,  B05D1/18 ,  C25D11/34 ,  C23C8/14 ,  C23C4/08 ,  C23C14/24

CPC classification number: F02F3/12 ,  B05D1/18 ,  C23C4/08 ,  C23C4/11 ,  C23C8/14 ,  C23C8/18 ,  C23C14/081 ,  C23C14/085 ,  C23C14/16 ,  C23C14/24 ,  C23C16/06 ,  C23C16/403 ,  C23C16/406 ,  C25D11/34 ,  F02F3/14

Abstract: A piston, especially a steel piston for an internal combustion engine, has a piston head which forms part of a combustion chamber. At least the piston head has an oxidation protective layer. A method for producing an oxidation protection layer is disclosed.

Abstract translation: 活塞，特别是用于内燃机的钢活塞，具有形成燃烧室一部分的活塞头。 至少活塞头具有氧化保护层。 公开了一种氧化保护层的制造方法。

公开(公告)号：US09255319B2

公开(公告)日：2016-02-09

申请号：US13819072

申请日：2011-08-12

Applicant: Yasuhiro Masaki ,  Masahito Tasaka ,  Manabu Kanzaki ,  Akihiro Uehira ,  Shoji Kinomura

Inventor： Yasuhiro Masaki ,  Masahito Tasaka ,  Manabu Kanzaki ,  Akihiro Uehira ,  Shoji Kinomura

IPC: C23C8/18 ,  F16L9/02 ,  C22C19/05 ,  G21D1/00 ,  C21D6/00 ,  C21D8/10 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C21D9/08 ,  C22F1/00 ,  C22F1/10 ,  G21F9/28 ,  C22C38/58

CPC classification number: C23C8/18 ,  C21D6/002 ,  C21D8/10 ,  C21D9/08 ,  C22C19/05 ,  C22C19/058 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/58 ,  C22F1/00 ,  C22F1/10 ,  F16L9/02 ,  G21D1/006 ,  G21F9/28 ,  Y02E30/40

Abstract: There is provided a Cr-containing austenitic alloy tube, wherein a chromium oxide film with a thickness of 0.05 to 1.5 μm having the relationship defined by Formula (i) is formed on the inner surface of the tube, wherein the average concentration of C in the depth range of 5 to 10 μm from the inner surface is lower than the concentration of C in a base metal; 0.4≦δ1/δ2≦2.5  (i) wherein δ1 and δ2 are thicknesses (μm) of the chromium oxide film at both ends of tube, respectively.

Abstract translation: 提供了一种含Cr的奥氏体合金管，其中在管的内表面上形成具有由式（i）定义的关系的具有0.05至1.5μm厚度的氧化铬膜，其中C的平均浓度 内表面的深度范围为5〜10μm，低于贱金属中的C浓度; 0.4＆nlE;δ1/δ2＆nlE; 2.5（i）其中δ1和δ2分别是管两端的氧化铬膜的厚度（μm）。

公开(公告)号：US20150083276A1

公开(公告)日：2015-03-26

申请号：US14396210

申请日：2013-04-23

Applicant: NISSHIN STEEL CO., LTD.

Inventor： Tadashi Nakano ,  Masaya Yamamoto ,  Hirofumi Taketsu

IPC: C23C22/05 ,  C23C22/82 ,  C23C22/73

CPC classification number: C23C22/05 ,  B32B15/013 ,  C22C1/02 ,  C22C18/00 ,  C22C18/04 ,  C22C38/00 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C8/02 ,  C23C8/18 ,  C23C22/73 ,  C23C22/82 ,  C23C28/00 ,  C23C28/321 ,  C23C28/3225 ,  C23C28/34 ,  C23C28/345 ,  C23C2222/00

Abstract: The present invention pertains to a method for producing a black-plated steel sheet capable of being blackened in a short amount of time, and exhibiting an excellent ability to maintain a black appearance after processing. As an original sheet, the sheet used is a Zn-plating steel sheet which contains molten Al and Mg and has a Zn-plating layer containing molten Al and Mg, containing Al in the amount of 1.0-22.0 mass %, inclusive, and containing Mg in the amount of 1.5-10.0 mass %, inclusive. The plating layer is blackened by causing the molten-plating steel sheet to contact water vapor inside a tightly sealed container. When doing so, the concentration of oxygen inside the tightly sealed container is 13% or less.

Abstract translation: 本发明涉及一种能够在短时间内变黑的镀黑钢板的制造方法，并且在加工后表现出良好的保持黑色外观的能力。 作为原始片材，所使用的片材是含有熔融的Al和Mg的Zn镀层钢板，并且具有含有熔融Al和Mg的Zn镀层，其含有量为1.0〜22.0质量％的Al，含有 含量为1.5-10.0质量％的Mg。 使镀层钢板与紧密密封的容器内的水蒸气接触，使镀层变黑。 这样做时，密闭容器内的氧浓度为13％以下。

公开(公告)号：US08980017B2

公开(公告)日：2015-03-17

申请号：US13456702

申请日：2012-04-26

Applicant: Yasushi Sasaki ,  Weonhui Lee

Inventor： Yasushi Sasaki ,  Weonhui Lee

IPC: C23C8/14 ,  C23C8/16 ,  C23C8/02 ,  C23C8/06 ,  C23C8/10 ,  C23C8/18 ,  C23C8/80 ,  C22C38/46

CPC classification number: C23C8/02 ,  C23C8/06 ,  C23C8/10 ,  C23C8/14 ,  C23C8/16 ,  C23C8/18 ,  C23C8/80

Abstract: A method for manufacturing a steel plate provided with a layered structure. A method for manufacturing a steel plate includes: i) providing a high carbon steel plate; ii) homogenizing the high carbon steel plate; iii) transforming the high carbon steel plate into an austenitic phase by heating the high carbon steel plate; iv) contacting the high carbon steel plate with an oxidization gas and converting the high carbon steel plate into a steel plate comprising surface layers that are spaced apart from each other and are decarburized to be transformed into a ferritic phase, and a center layer that is located between the surface layers and is not decarburized; and v) cooling the high carbon steel plate and transforming the center layer into a martensitic phase.

Abstract translation: 一种具有层叠结构的钢板的制造方法。 钢板的制造方法包括：i）提供高碳钢板; ii）均质高碳钢板; iii）通过加热高碳钢板将高碳钢板转化为奥氏体相; iv）使高碳钢板与氧化气体接触，并将高碳钢板转化成钢板，该钢板包括彼此间隔开的表层，并被脱碳转化为铁素体相，中心层为 位于表层之间，不脱碳; 和v）冷却高碳钢板并将中心层转变成马氏体相。