公开(公告)号：US09757779B2

公开(公告)日：2017-09-12

申请号：US14344734

申请日：2012-09-03

Applicant: Nozomu Oda ,  Yasunori Nozaki ,  Ryouta Honda ,  Takumi Ohata

Inventor： Nozomu Oda ,  Yasunori Nozaki ,  Ryouta Honda ,  Takumi Ohata

IPC: C21D9/38 ,  B21B27/03 ,  B21B1/26 ,  B22D13/02 ,  C22C38/58 ,  C21D5/00 ,  C21D9/00 ,  C22C37/08 ,  C22C37/10 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  B22D19/16 ,  B32B15/01 ,  B21B1/22

CPC classification number: B21B1/26 ,  B21B27/032 ,  B21B2001/225 ,  B22D13/02 ,  B22D19/16 ,  B32B15/011 ,  C21D5/00 ,  C21D9/0068 ,  C21D9/38 ,  C22C37/08 ,  C22C37/10 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/58

Abstract: A centrifugally cast composite roll for hot rolling comprising an outer layer having a composition comprising by mass 0.8-3.5% of C, 0.1-2.5% of Si, 0.1-2.5% of Mn, 1.2-15% of Cr, 1-5% of Ni, and 1-10% of Mo+0.5×W, the balance being substantially Fe and inevitable impurities, and an inner layer made of an iron-based alloy and integrally fused to the outer layer; the outer layer having Shore hardness of 67-82 at the initial diameter of the composite roll; and the maximum Shore hardness of the outer layer in a range 30 mm or more deep from the initial diameter being higher by 1 or more than the Shore hardness of the outer layer at the initial diameter.

公开(公告)号：US20170081738A1

公开(公告)日：2017-03-23

申请号：US15311412

申请日：2015-06-05

Applicant: Aktiebolaget SKF

Inventor： Anna Isabella Flodstrom ,  Staffan Larsson

IPC: C21D9/36 ,  C21D9/38 ,  F16C33/64 ,  C21D1/42 ,  C23C8/22 ,  C23C8/32 ,  C21D9/40 ,  C21D1/06

CPC classification number: C21D9/36 ,  C21D1/06 ,  C21D1/10 ,  C21D1/42 ,  C21D9/38 ,  C21D9/40 ,  C22C38/44 ,  C23C8/22 ,  C23C8/32 ,  C23C8/80 ,  F16C33/64 ,  F16C2223/12 ,  F16C2223/16 ,  F16C2223/18 ,  Y02P10/253

Abstract: A method for surface hardening at least one part of a surface of a metal component is provided. The steps include a) enriching the at least one part of a surface of a metal component with at least one of carbon and nitrogen, and b) induction hardening the at least one part of the surface of the metal component.

公开(公告)号：US20160333438A1

公开(公告)日：2016-11-17

申请号：US15110390

申请日：2015-01-09

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Masashi SAKAMOTO ,  Junichi KODAMA ,  Yutaka NEISHI

IPC: C21D9/40 ,  C22C38/54 ,  C22C38/44 ,  C22C38/20 ,  C21D8/06 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/36 ,  F16C33/30 ,  C22C38/32

CPC classification number: C21D9/40 ,  B22D23/00 ,  C21D1/18 ,  C21D1/32 ,  C21D8/065 ,  C21D9/36 ,  C21D9/38 ,  C21D2211/001 ,  C21D2211/003 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/32 ,  C22C38/40 ,  C22C38/44 ,  C22C38/54 ,  F16C33/30 ,  F16C33/62 ,  F16C33/64 ,  F16C2204/66 ,  F16C2204/70 ,  F16C2204/72 ,  F16C2220/44 ,  F16C2223/02 ,  F16C2223/10

Abstract: A bearing part according the present invention includes, as the chemical composition, by mass %, C: 0.95% to 1.10%, Si: 0.10% to 0.70%, Mn: 0.20% to 1.20%, Cr: 0.90% to 1.60%, Al: 0.010% to 0.100%, N: 0.003% to 0.030%, P: 0.025% or less, S: 0.025% or less, O: 0.0010% or less, and optionally Mo: 0.25% or less, B: 0.0050% or less, Cu: 1.0% or less, Ni: 3.0% or less, and Ca: 0.0015% or less, and a remainder including Fe and impurities; metallographic structure includes a retained austenite, a spherical cementite and a martensite; an amount of the retained austenite is 15% to 25%, by volume %; an average grain size of prior-austenite is 8.0 μm or less; and a number density of a void having a circle equivalent diameter of 0.02 μm to 3.0 μm is 2000 mm−2 or less in the metallographic structure.

Abstract translation: 本发明的轴承部件按质量％计含有C：0.95％〜1.10％，Si：0.10％〜0.70％，Mn：0.20％〜1.20％，Cr：0.90％〜1.60％ Al：0.010〜0.100％，N：0.003％〜0.030％，P：0.025％以下，S：0.025％以下，O：0.0010％以下，任意Mo：0.25％以下，B：0.0050％ 以下，Cu：1.0％以下，Ni：3.0％以下，Ca：0.0015％以下，剩余部分含有Fe和杂质; 金相结构包括残留奥氏体，球形渗碳体和马氏体; 残留奥氏体的量为15〜25％（体积％）。 原奥氏体的平均粒径为8.0μm以下; 在金相结构中，圆当量直径为0.02μm〜3.0μm的空隙的数密度为2000mm -2以下。

公开(公告)号：US08684895B2

公开(公告)日：2014-04-01

申请号：US12686700

申请日：2010-01-13

Applicant: Ulrich Severing ,  Bernd Eppli ,  Lutz Krodel-Teuchert

Inventor： Ulrich Severing ,  Bernd Eppli ,  Lutz Krodel-Teuchert

IPC: F16C13/00

CPC classification number: D21F3/08 ,  C21D5/00 ,  C21D9/38 ,  C22C37/04 ,  D21G1/0246

Abstract: A roller body for a roller for treating a material, preferably a web material, which is cast from an iron base alloy which forms a radially interior zone (5) of the roller body (1) made of grey cast iron (GJS, GJV) and, around the interior zone (5), a circumferential rim zone (6) which includes the outer circumference of the roller body (1) and exhibits a surface hardness which is greater than 400 HV, wherein the circumferential rim zone (6) consists of ribbon grain or superfine ribbon grain pearlite (P) with embedded free graphite, preferably spheroidal graphite (SG) or vermicular graphite (V), or of an intermediate structure (ADI) with spheroidal graphite or vermicular graphite.

Abstract translation: 一种用于处理由铁基合金铸造的材料（优选网状材料）的辊的辊体，所述铁基合金形成由灰口铸铁（GJS，GJV）制成的辊体（1）的径向内部区域（5） 以及围绕所述内部区域（5）的包括所述辊体（1）的外圆周并且表现出大于400HV的表面硬度的圆周边缘区域（6），其中所述圆周边缘区域（6）包括 带状颗粒或超细带状颗粒珠光体（P），带有嵌入的游离石墨，优选球形石墨（SG）或蠕墨性石墨（V），或具有球状石墨或蠕墨性石墨的中间结构（ADI）。

公开(公告)号：US20130156627A1

公开(公告)日：2013-06-20

申请号：US13690323

申请日：2012-11-30

Applicant: Abbott Ball Company ,  NASA Glenn Research Center

Inventor： Glenn N. Glennon ,  Christopher DellaCorte

IPC: B22F3/24 ,  C22C19/03

CPC classification number: B22F3/24 ,  B22F1/0003 ,  B22F2009/041 ,  B22F2009/043 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/00 ,  C21D1/58 ,  C21D9/0068 ,  C21D9/0093 ,  C21D9/38 ,  C22C1/0433 ,  C22C19/03 ,  C22F1/10 ,  B22F3/10 ,  B22F2201/20 ,  B22F2202/01 ,  B22F9/04 ,  B22F9/08 ,  B22F9/082 ,  B22F3/15 ,  B22F2003/247 ,  B22F2003/248

Abstract: Disclosing herein is a method for manufacturing nickel-titanium compositions. The method includes disposing a powdered composition in a mold; the powdered composition comprising nickel and titanium; the titanium being present in an amount of about 38 to about 42 wt % and the nickel being present in an amount of about 58 to about 62 wt %; sintering the powdered composition to produce a sintered preform; compacting the preform; machining the preform to form an article; heat treating the article; the annealing being conducted at a temperature of about 1650° F. to about 1900° F. at a pressure of about 3 Torr to about 5 Kg−f/cm2 for a time period of about 10 minutes to about 5 hours; and quenching the article.

Abstract translation: 本文公开了一种制造镍 - 钛组合物的方法。 该方法包括将粉末状组合物设置在模具中; 包含镍和钛的粉末组合物; 钛的存在量为约38至约42重量％，镍的存在量为约58至约62重量％; 烧结粉末组合物以制备烧结预制件; 压实预制件; 加工预成型件以形成制品; 热处理物品; 退火在大约1650°F至大约1900°F的温度下进行，压力约为3乇至约5Kg-f / cm 2，时间为约10分钟至约5小时; 并猝灭物品。

公开(公告)号：US08431230B2

公开(公告)日：2013-04-30

申请号：US13256392

申请日：2010-03-23

Applicant: Makoto Takahashi ,  Youhei Enjo ,  Shinichi Uramaru

Inventor： Makoto Takahashi ,  Youhei Enjo ,  Shinichi Uramaru

IPC: B32B15/04

CPC classification number: C22C38/02 ,  C21D6/004 ,  C21D9/08 ,  C21D9/38 ,  C21D9/563 ,  C22C38/005 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  C22F1/10 ,  C23C28/00 ,  C23C30/00 ,  Y10T428/256 ,  Y10T428/257

Abstract: A cast product for use in high temperature atmosphere comprising a cast body of a heat-resistant alloy comprising of, in mass percent, 0.05 to 0.7% of C, over 0% to up to 2.5% of Si, over 0% to up to 3.0% of Mn, 15 to 50% of Cr, 18 to 70% of Ni, 2 to 4% of Al, 0.005 to 0.4% of rare-earth elements, and 0.5 to 10% of W and/or 0.1 to 5% of Mo, the balance being Fe and inevitable impurities, and a barrier layer formed at a surface of the cast body to be brought into contact with said high temperature atmosphere, said barrier layer comprising an Al2O3 layer having a thickness of 0.5 μm or more wherein at least 80 area % of the outermost surface thereof is Al2O3, and said cast product having Cr-based particles dispersed at an interface between the Al2O3 layer and the cast body at a higher Cr concentration than that of a matrix of the alloy.

Abstract translation: 一种用于高温气氛的铸造产品，包括耐热合金铸造体，其以质量％计含有0.05％至0.7％的C，超过0％至2.5％的Si，超过0％至 Mn为3.0％，Cr为15〜50％，Al为18〜70％，Al为2〜4％，稀土元素为0.005〜0.4％，W为0.5〜10％，或为0.1〜5％ 的Mo，余量为Fe和不可避免的杂质，以及形成在铸体表面的与所述高温气氛接触的阻挡层，所述阻挡层包括厚度为0.5μm以上的Al 2 O 3层，其中， 其最外表面的至少80面积％是Al 2 O 3，并且所述具有Cr基颗粒的铸造产品以比合金基体更高的Cr浓度分散在Al 2 O 3层和铸体之间的界面处。

公开(公告)号：US08156651B2

公开(公告)日：2012-04-17

申请号：US11575127

申请日：2005-09-13

Applicant: Kiyoshi Furushima ,  Shunji Matsumoto ,  Ryota Honda ,  Kiyoshi Hayashi ,  Takashi Honda ,  Masatsugu Uchida

Inventor： Kiyoshi Furushima ,  Shunji Matsumoto ,  Ryota Honda ,  Kiyoshi Hayashi ,  Takashi Honda ,  Masatsugu Uchida

IPC: B21K1/02 ,  B22D13/02 ,  F16C13/00

CPC classification number: B22D13/023 ,  B21B27/00 ,  B22D19/16 ,  B32B15/011 ,  C21D9/36 ,  C21D9/38 ,  C22C37/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/30 ,  C22C38/36 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C22C38/56 ,  F16C13/00 ,  Y10T29/4956 ,  Y10T29/49563 ,  Y10T29/49989 ,  Y10T428/12493 ,  Y10T428/12806 ,  Y10T428/12812

Abstract: A method for producing an outer layer for a roll having a structure having MC carbide dispersed at an area ratio of 20-60%, comprising the steps of (1) centrifugally casting a melt having a composition comprising, by mass, 2.2-6.0% of C, 0.1-3.5% of Si, 0.1-3.5% of Mn, and 8-22% of V, the balance being Fe and inevitable impurity elements, to produce a cylindrical body comprising an inner layer having concentration MC carbide, an MC-carbide-poor outer layer, and a concentration gradient layer between the inner layer and the outer layer, in which the area ratio of MC carbide changes, and (2) cutting the cylindrical body to a depth at which the area ratio of MC carbide is 20% or more.

Abstract translation: 一种制造具有MC碳化物分布结构的辊的外层的方法，其面积比为20-60％，包括以下步骤：（1）离心铸造具有质量分数为2.2-6.0％ 的C，0.1-3.5％的Si，0.1-3.5％的Mn和8-22％的V，余量为Fe和不可避免的杂质元素，以产生包括具有浓度MC碳化物的内层的圆筒体，MC 碳化物不足的外层，以及MC层的面积比变化的内层与外层之间的浓度梯度层，（2）将圆筒体切割成MC碳化物的面积比的深度 是20％以上。

公开(公告)号：US20110155290A1

公开(公告)日：2011-06-30

申请号：US13061023

申请日：2010-01-13

Applicant: Kei Miyanishi ,  Masayuki Hashimura ,  Shuuji Kozawa ,  Manabu Kubota ,  Tatsuro Ochi

Inventor： Kei Miyanishi ,  Masayuki Hashimura ,  Shuuji Kozawa ,  Manabu Kubota ,  Tatsuro Ochi

IPC: C21D9/52 ,  C22C38/18 ,  C22C38/08 ,  C22C38/00 ,  C23C22/78

CPC classification number: C22C38/02 ,  B21J1/02 ,  C21D1/32 ,  C21D1/58 ,  C21D6/002 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0257 ,  C21D9/32 ,  C21D9/36 ,  C21D9/38 ,  C21D9/40 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  F16C33/62

Abstract: This case hardening steel has a chemical composition including, by mass %: C: 0.1 to 0.6%; Si: 0.02 to 1.5%; Mn: 0.3 to 1.8%; P: 0.025% or less; S: 0.001 to 0.15%; Al: over 0.05 to 1.0%; Ti: 0.05 to 0.2%; N: 0.01% or less; and O: 0.0025% or less, and further including, by mass %, one or more of Cr: 0.4 to 2.0%, Mo: 0.02 to 1.5%, Ni: 0.1 to 3.5%, V: 0.02 to 0.5%, and B: 0.0002 to 0.005%, and the balance consisting of iron and unavoidable impurities.

Abstract translation: 该硬化钢的化学成分按质量％计含有：C：0.1〜0.6％ Si：0.02〜1.5％ Mn：0.3〜1.8％ P：0.025％以下; S：0.001〜0.15％ Al：0.05〜1.0％ Ti：0.05〜0.2％ N：0.01％以下 和O：0.0025％以下，进一步包括Cr：0.4〜2.0％，Mo：0.02〜1.5％，Ni：0.1〜3.5％，V：0.02〜0.5％中的一种或多种，​​B： ：0.0002〜0.005％，余量由铁和不可避免的杂质组成。

公开(公告)号：US20100179039A1

公开(公告)日：2010-07-15

申请号：US12686700

申请日：2010-01-13

Applicant: Ulrich Severing ,  Bernd Eppli ,  Lutz Krodel-Teuchert

Inventor： Ulrich Severing ,  Bernd Eppli ,  Lutz Krodel-Teuchert

IPC: F16C13/00 ,  D21F3/08 ,  B22D17/00 ,  C21D6/00

CPC classification number: D21F3/08 ,  C21D5/00 ,  C21D9/38 ,  C22C37/04 ,  D21G1/0246

Abstract: A roller body for a roller for treating a material, preferably a web material, which is cast from an iron base alloy which forms a radially interior zone (5) of the roller body (1) made of grey cast iron (GJS, GJV) and, around the interior zone (5), a circumferential rim zone (6) which includes the outer circumference of the roller body (1) and exhibits a surface hardness which is greater than 400 HV, wherein the circumferential rim zone (6) consists of ribbon grain or superfine ribbon grain pearlite (P) with embedded free graphite, preferably spheroidal graphite (SG) or vermicular graphite (V), or of an intermediate structure (ADI) with spheroidal graphite or vermicular graphite.

Abstract translation: 一种用于处理由铁基合金铸造的材料（优选网状材料）的辊的辊体，所述铁基合金形成由灰口铸铁（GJS，GJV）制成的辊体（1）的径向内部区域（5） 以及围绕所述内部区域（5）的包括所述辊体（1）的外圆周并且表现出大于400HV的表面硬度的圆周边缘区域（6），其中所述圆周边缘区域（6）包括 带状颗粒或超细带状颗粒珠光体（P），带有嵌入的游离石墨，优选球形石墨（SG）或蠕墨性石墨（V），或具有球状石墨或蠕墨性石墨的中间结构（ADI）。

公开(公告)号：US20100122754A1

公开(公告)日：2010-05-20

申请号：US11528474

申请日：2006-09-28

Applicant: Hirotsugu Kawanaka ,  Masahiko Arai ,  Hideo Yoda

Inventor： Hirotsugu Kawanaka ,  Masahiko Arai ,  Hideo Yoda

IPC: C21D8/00 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C22C38/54

CPC classification number: F01D5/02 ,  C21D8/00 ,  C21D9/28 ,  C21D9/38 ,  C22C38/001 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  F01D5/28 ,  F05D2230/25 ,  F05D2230/40

Abstract: A high-strength martensite heat resisting steel which has long-time creep rupture strength required for steam temperature condition of 600-630° C. and toughness at room temperature, and which is suitable for use as a material of a steam turbine rotor shaft and as large-sized forged steel with an improvement of hot forgeability. A method of producing the steel and applications of the steel are also provided. The high-strength martensite heat resisting steel contains 0.05-0.20% by mass of C, 0.1% or less of Si, 0.05-0.6% of Mn, 0.1-0.6% of Ni, 9.0-12.0% of Cr, 0.20-0.65% of Mo, 2.0-3.0% of W, 0.1-0.3% of V, 2.0% or less of Co, 0.02-0.20% of Nb, 0.015% or less of B, 0.01-0.10% of N, and 0.015% or less of Al, (W/Mo) being 4.0-10.0.

Abstract translation: 一种高温马氏体耐热钢，其蒸汽温度条件为600-630℃所需的长时间蠕变断裂强度，室温下的韧性，适用于汽轮机转子轴的材料， 作为大型锻钢，具有提高热锻性能。 还提供了钢的制造方法和钢的应用。 高强度马氏体耐热钢含有0.05-0.20质量％的C，0.1％或更少的Si，0.05-0.6％的Mn，0.1-0.6％的Ni，9.0-12.0％的Cr，0.20-0.65％ 的Mo，2.0〜3.0％的W，0.1-0.3％的V，2.0％以下的Co，0.02〜0.20％的Nb，0.015％以下的B，0.01-0.10％的N和0.015％以下的 的Al，（W / Mo）为4.0〜10.0。