公开(公告)号：US08317942B2

公开(公告)日：2012-11-27

申请号：US11817752

申请日：2006-02-08

Applicant: Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J. Goebbeis

Inventor： Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J. Goebbeis

IPC: C22C37/06 ,  C21D5/00

CPC classification number: C22C37/08 ,  C21D5/00 ,  C21D5/02 ,  C21D2211/002 ,  C21D2211/004 ,  C21D2211/007 ,  C21D2211/008 ,  C21D2211/009 ,  F02F1/004

Abstract: A cast iron material, particularly a ledeburitic cast iron material with a carbide content of at least 15 wt. % and a characteristic free, evenly distributed graphite formation is disclosed. In this case, the evenly distributed graphite formation may comprise graphite flakes and/or vermicular graphite and/or nodular graphite. Depending on the respective application (diameter (D) of the running gear seal, peripheral speed), the basic matrix may be realized in pearlitic and/or bainitic and/or martensitic form. Due to the high graphite content, the material has a thermal conductivity that is three to four times greater than that of white cast iron materials, wherein this provides the advantage that no scoring of the running gear seals occurs at high peripheral speeds (>5 m/s) and large diametrical dimensions of the seals (D >600 mm). In addition, the high carbide content of at least 15 wt. % provides an adequate wear resistance, and other alloying elements such as chromium, vanadium, molybdenum and nickel provide the material with a corresponding corrosion resistance. The aforementioned ledeburitic cast iron material with evenly distributed graphite formation can be used, for example, for the manufacture of axial face seals and cylinder liners.

Abstract translation: 铸铁材料，特别是具有至少15重量％的碳化物含量的铅铝铸铁材料。 公开了一种不含特征的均匀分布的石墨。 在这种情况下，均匀分布的石墨层可以包括石墨薄片和/或蠕墨石墨和/或结节状石墨。 根据各自的应用（行驶齿轮密封件的直径（D），圆周速度），基本基质可以以珠光体和/或贝氏体和/或马氏体形式实现。 由于石墨含量高，材料的导热系数比白铸铁材料的导热系数高三到四倍，这样做的优点在于，在高圆周速度（> 5 m / s）和密封件的大直径尺寸（D> 600 mm）。 此外，高碳化物含量至少为15wt。 ％提供足够的耐磨性，其他合金元素如铬，钒，钼和镍为材料提供相应的耐腐蚀性。 可以使用具有均匀分布的石墨形成的上述铅铁合金铸铁材料，例如用于制造轴向面密封件和气缸套。

公开(公告)号：US20120267009A1

公开(公告)日：2012-10-25

申请号：US13441404

申请日：2012-04-06

Applicant: Koji OBAYASHI ,  Mamoru TAKEUCHI ,  Ryuta SUGIYAMA ,  Ken SHIMIZU ,  Koichi KATO

Inventor： Koji OBAYASHI ,  Mamoru TAKEUCHI ,  Ryuta SUGIYAMA ,  Ken SHIMIZU ,  Koichi KATO

IPC: C23C8/20 ,  B32B15/04

CPC classification number: C23C8/02 ,  C21D1/06 ,  C21D1/25 ,  C21D2211/002 ,  C21D2211/008 ,  C21D2211/009 ,  C23C8/20 ,  C23C8/22 ,  C23C8/80

Abstract: A manufacturing method for a composite steel part including preparing an intermediate product in which an extra portion, which has a thickness equal to or more than that of a carburized layer to be formed in a subsequent carburizing step, has been added to a welding expected portion, carburizing the intermediate product by heating to an austenitizing temperature or more in a carburizing atmosphere, then cooling the intermediate product at a cooling rate less than a rate at which martensitic transformation occurs and without completing structural transformation due to the cooling, quenching a portion of the intermediate product after heating to an austenitizing range by high-density energy and thereafter cooling to cause martensitic transformation to form a carburized quenched portion, removing an extra portion of the intermediate product; and then welding a second steel part to the welding expected portion.

Abstract translation: 1.一种复合钢部件的制造方法，其特征在于，包括制备中间产品，其中在随后的渗碳步骤中形成厚度等于或大于待形成的渗碳层的厚度的附加部分已经被添加到焊接预期部分 通过在渗碳气氛中加热到奥氏体化温度以上，然后以低于马氏体相变速度的冷却速度冷却中间产物而不会由于冷却而完成结构变形而使中间产物渗碳，骤冷部分 中间产品通过高密度能量加热到奥氏体化程度，然后冷却以使马氏体相变形成渗碳淬火部分，除去额外的中间产物; 然后将第二钢部件焊接到焊接预期部分。

公开(公告)号：US20120263622A1

公开(公告)日：2012-10-18

申请号：US13461125

申请日：2012-05-01

Applicant: Yoshihiro Daitoh ,  Akira Kito ,  Takayuki Nakamura

Inventor： Yoshihiro Daitoh ,  Akira Kito ,  Takayuki Nakamura

IPC: C22C38/38 ,  C22C38/06 ,  C22C38/08 ,  C22C38/58 ,  C22C38/18 ,  C22C38/22

CPC classification number: C21D8/065 ,  C21D1/18 ,  C21D6/002 ,  C21D9/00 ,  C21D9/0075 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/22 ,  C22C38/28 ,  C23C8/02

Abstract: A hot-rolled steel bar or wire rod consisting of C: 0.1 to 0.3%, Si: 0.05 to 1.5%, Mn: 0.4 to 2.0%, S: 0.003 to 0.05%, Cr: 0.5 to 3.0%, Al: 0.02 to 0.05%, and N: 0.010 to 0.025%, the balance being Fe and impurities, and the impurities containing P: 0.025% or less, Ti: 0.003% or less, and O: 0.002% or less, wherein the structure thereof is composed of a ferrite-pearlite structure, ferrite-pearlite-bainite structure, or ferrite-bainite structure; the standard deviation of ferrite fractions at the time when randomly selected 15 viewing fields of a transverse cross section are observed and measured with the area per one viewing field being 62,500 μm2 is 0.10 or less; and in a region from the surface to one-fifth of the radius and a region from the center to one-fifth of the radius in the transverse cross section, the amount of Al precipitating as AlN is 0.005% or less, and the density in terms of the number of AlN having a diameter of 100 nm or larger is 5/100 μm2 or less. In the hot-rolled steel bar or wire rod, even if hot forging is performed in various temperature ranges, austenite grains can be stably prevented from being coarsened at the time of heating for carburization.

Abstract translation: 由C：0.1〜0.3％，Si：0.05〜1.5％，Mn：0.4〜2.0％，S：0.003〜0.05％，Cr：0.5〜3.0％，Al：0.02〜 0.05％，N：0.010〜0.025％，余量为Fe和杂质，含有P：0.025％以下，Ti：0.003％以下，O：0.002％以下的杂质，其结构为 的铁素体 - 珠光体组织，铁素体 - 珠光体 - 贝氏体组织或铁素体 - 贝氏体组织; 在每个视场的面积为62,500μm2的情况下观察和测量随机选择的横截面的15个视野时的铁素体部分的标准偏差为0.10以下; 并且在从半径的表面到五分之一的区域和从横截面的半径的中心到五分之一的区域中，作为AlN的Al析出量为0.005％以下， 直径为100nm以上的AlN的数量的项为5/100μm2以下。 在热轧钢棒或线材中，即使在各种温度范围内进行热锻造，也可以稳定地防止在加热加热时使奥氏体晶粒粗大化。

公开(公告)号：US20120241058A1

公开(公告)日：2012-09-27

申请号：US13395829

申请日：2010-09-22

Applicant: Markus Huber ,  Jurgen Mittrach ,  Petra Suess ,  Dirk Radebach

Inventor： Markus Huber ,  Jurgen Mittrach ,  Petra Suess ,  Dirk Radebach

IPC: F16C3/06 ,  C22C37/04 ,  C21D5/00

CPC classification number: C22C37/04 ,  C21D5/00 ,  C21D9/30 ,  C21D2211/005 ,  C21D2211/009 ,  C21D2221/10 ,  F16C3/08

Abstract: The invention relates to a cast iron cast part, in particular a cast crankshaft (1), having a first layer (3) made of ausferrite, and a second layer (4) adjoining the interior (5) made of ausferrite and troostite.

Abstract translation: 本发明涉及一种铸铁铸造件，特别是铸造曲轴（1），其具有由铁素体制成的第一层（3）和邻接由铁素体和铁素体制成的内部（5）的第二层（4）。

公开(公告)号：US08210019B2

公开(公告)日：2012-07-03

申请号：US12309439

申请日：2007-07-24

Applicant: Masaharu Ueda ,  Kazunori Seki ,  Takuya Sato ,  Takeshi Yamamoto

Inventor： Masaharu Ueda ,  Kazunori Seki ,  Takuya Sato ,  Takeshi Yamamoto

IPC: B21B23/00 ,  B21D37/16

CPC classification number: C22C38/04 ,  B21B1/085 ,  C21D8/0205 ,  C21D9/04 ,  C21D2211/009 ,  C22C38/02

Abstract: The invention provides a method for producing a pearlitic rail by rough hot rolling and finish hot rolling a billet. In the finish hot rolling, the billet is rolled at a rail head surface temperature in a range of not higher than 900° C. to not lower than the Ar3 transformation point or Arcm transformation point to produce a head cumulative reduction of area of not less than 20%, where the reaction force ratio of the finish rolling is not less than 1.25. The finish hot rolled rail head surface is subjected to accelerated cooling or spontaneous cooling to a temperature of 550° C. or less at a cooling rate of 2 to 30° C./seconds, thereby refining the rail head structure to attain a hardness within a predetermined range, and improving rail wear resistance and ductility.

Abstract translation: 本发明提供一种通过粗热轧和精轧热轧生产珠光体钢轨的方法。 在精轧中，钢坯以不高于900℃的轨头头表面温度轧制至不低于Ar3相变点或Arcm相变点，以产生不少于面积的头部累积减少量 超过20％，其中精轧的反作用力比不小于1.25。 将最终热轧钢轨头表面以2〜30℃/秒的冷却速度进行加速冷却或自发冷却至550℃以下的温度，由此精炼轨头结构以获得硬度 预定范围，提高轨道耐磨性和延展性。

公开(公告)号：US20120087825A1

公开(公告)日：2012-04-12

申请号：US13261069

申请日：2010-04-14

Applicant: Teruhisa Miyazaki ,  Masaharu Ueda ,  Suguru Yoshida

Inventor： Teruhisa Miyazaki ,  Masaharu Ueda ,  Suguru Yoshida

IPC: B21B3/02 ,  C22C38/14 ,  C22C38/04 ,  C22C38/12 ,  C22C38/02

CPC classification number: C21D9/04 ,  C21D8/00 ,  C21D8/005 ,  C21D8/0226 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14

Abstract: This high-carbon pearlitic steel rail having excellent ductility, includes: in terms of percent by mass, C: more than 0.85% to 1.40%; Si: 0.10% to 2.00%; Mn: 0.10% to 2.00%; Ti: 0.001% to 0.01%; V: 0.005% to 0.20%; and N: less than 0.0040%, with the balance being Fe and inevitable impurities, wherein contents of Ti and V fulfill the following formula (1), and a rail head portion has a pearlite structure. 5≦[V(% by mass)]/[Ti(% by mass)]≦20  Formula (1)

Abstract translation: 这种具有优异延展性的高碳珠光体钢轨包括：以质量％计，C：大于0.85％至1.40％; Si：0.10〜2.00％; Mn：0.10〜2.00％ Ti：0.001〜0.01％ V：0.005〜0.20％ 和N：小于0.0040％，余量为Fe和不可避免的杂质，其中Ti和V的含量满足下式（1），轨头部分具有珠光体组织。 5＆nlE; [V（质量％）] / [Ti（质量％）]＆nlE; 20式（1）

公开(公告)号：US20120070687A1

公开(公告)日：2012-03-22

申请号：US13261050

申请日：2010-06-23

Applicant: Nobuyuki Shimoda ,  Toshimi Tarui ,  Junichi Kodama ,  Makoto Kosaka ,  Shingo Yamasaki

Inventor： Nobuyuki Shimoda ,  Toshimi Tarui ,  Junichi Kodama ,  Makoto Kosaka ,  Shingo Yamasaki

IPC: B32B15/01 ,  B21C43/00 ,  B32B15/02

CPC classification number: C23C2/02 ,  B32B15/013 ,  C21D1/20 ,  C21D1/607 ,  C21D9/525 ,  C21D2211/009 ,  C22C18/04 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C23C2/06 ,  C23C2/38 ,  C23C28/021 ,  Y10T428/1266 ,  Y10T428/12799

Abstract: Disclosed is a high-strength Zn—Al coated steel wire for bridges with excellent corrosion resistance and fatigue properties, the Zn—Al coated steel wire includes: a steel wire; and a Zn—Al coating having a coating body layer and an Fe—Al alloy layer formed in an interface between a surface layer of the steel wire and the coating body layer, wherein a chemical composition of a core material of the steel wire includes, by mass %: C: 0.70% to 1.2%; Si: 0.01% to 2.5%; Mn: 0.01% to 0.9%; P: limited to 0.02% or less; S: limited to 0.02% or less; N: limited to 0.01% or less; and the balance including Fe and unavoidable impurities, wherein wire-drawn pearlite is most abundant microstructure among microstructures of the core material of the steel wire; wherein an average composition of the Zn—Al coating includes, by mass %, Al: 3.0 to 15.0%; and Fe: limited to 3.0% or less, and wherein the Fe—Al alloy layer has a thickness of 5 μm or less.

Abstract translation: 公开了一种用于桥梁的高强度Zn-Al涂层钢丝，具有优异的耐腐蚀性和疲劳性能，Zn-Al涂层钢丝线包括：钢丝; 以及Zn-Al系涂层，其具有在所述钢丝的表面层与所述涂层体层之间的界面中形成的涂层体层和Fe-Al合金层，其中，所述钢丝的芯材的化学组成包括， ：C：0.70〜1.2％; Si：0.01〜2.5％ Mn：0.01〜0.9％ P：限制在0.02％以下; S：限制在0.02％以下; N：限制在0.01％以下; 余量包括Fe和不可避免的杂质，其中拉丝珠光体是钢丝芯材的微观结构中最丰富的微观结构; 其中，所述Zn-Al系涂层的平均组成按质量％计含有Al：3.0〜15.0％ Fe：3.0％以下，Fe-Al合金层的厚度为5μm以下。

公开(公告)号：US08137484B2

公开(公告)日：2012-03-20

申请号：US12288542

申请日：2008-10-20

Applicant: Masayuki Hashimura ,  Atsushi Mizuno ,  Kenichiro Naito ,  Hiroshi Hagiwara ,  Kohichi Isobe ,  Hiroshi Hirata

Inventor： Masayuki Hashimura ,  Atsushi Mizuno ,  Kenichiro Naito ,  Hiroshi Hagiwara ,  Kohichi Isobe ,  Hiroshi Hirata

IPC: C21D7/13 ,  C22C38/04 ,  C22C38/60

CPC classification number: C22C38/001 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/002 ,  C22C38/04 ,  C22C38/60

Abstract: The present invention provides steel superior in machinability comprised of, by wt %, C: 0.005 to 0.2%, Si: 0.001 to 0.5%, Mn: 0.2 to 3.0%, P: 0.001 to 0.2%, S: 0.03 to 1.0%, T.N: 0.002 to 0.02%, T.O: 0.0005 to 0.035%, and the balance of Fe and unavoidable impurities, said steel satisfying one or both of Mn/S in the steel being 1.2 to 2.8 or an area ratio of pearlite over a grain size of 1 μm in a microstructure of the steel being not more than 5%.

Abstract translation: 本发明提供了以C：0.005〜0.2％，Si：0.001〜0.5％，Mn：0.2〜3.0％，P：0.001〜0.2％，S：0.03〜1.0％，重量％ TN：0.002〜0.02％，TO：0.0005〜0.035％，余量由Fe和不可避免的杂质构成，所述钢满足钢中Mn / S的一种或两种或1.2或2.8，或珠光体相对于晶粒尺寸的面积比 在钢的微观结构中为1μm以下，不超过5％。

公开(公告)号：US20120015212A1

公开(公告)日：2012-01-19

申请号：US13138791

申请日：2010-03-30

Applicant: Kenichi Karimine ,  Masaharu Ueda ,  Katsuya Iwano ,  Seiji Sugiyama

Inventor： Kenichi Karimine ,  Masaharu Ueda ,  Katsuya Iwano ,  Seiji Sugiyama

IPC: B32B15/00 ,  F28F7/00 ,  F28F27/00

CPC classification number: E01B29/44 ,  B23K11/04 ,  B23K23/00 ,  B23K31/02 ,  B23K2101/26 ,  B23K2103/04 ,  C21D9/04 ,  C21D9/505 ,  C21D11/005 ,  C21D2211/009 ,  C21D2221/00 ,  C22C1/02 ,  E01B11/46 ,  Y10T428/12951

Abstract: The invention provides a method of cooling a rail weld zone. The method includes a first rail web portion cooling process of cooling a rail web portion cooling region of the rail weld zone in a part of a temperature range until the completion of transformation from austenite to pearlite, a second rail web portion cooling process of cooling the rail web portion cooling region after the entire rail web portion of the rail weld zone is transformed to pearlite, a foot portion cooling process of cooling a foot portion of the rail weld zone, and a head portion cooling process of cooling a head portion of the rail weld zone. When cooling time of the first and second rail web portion cooling processes is t minute, a k value satisfies an expression represented as −0.1t+0.63≦k≦−0.1t+2.33.

Abstract translation: 本发明提供了一种冷却钢轨焊接区域的方法。 该方法包括在一段温度范围内冷却轨道焊接区域的轨道网部分冷却区域直到从奥氏体向珠光体转变为完成的第一轨道网部分冷却过程， 在轨道焊接区域的整个轨道腹板部分之后的轨道网部分冷却区域转变为珠光体，用于冷却轨道焊接区域的脚部的脚部冷却过程，以及冷却头部部分的头部冷却过程 铁路焊接区。 当第一和第二轨道部分冷却过程的冷却时间为t分钟时，k值满足表示为-0.1t + 0.63＆nlE; k＆nlE; -0.1t + 2.33的表达式。

公开(公告)号：US20110226389A1

公开(公告)日：2011-09-22

申请号：US13131804

申请日：2010-08-13

Applicant: Masaharu Ueda ,  Kyohei Sonoyama ,  Takuya Tanahashi ,  Teruhisa Miyazaki ,  Katsuya Iwano

Inventor： Masaharu Ueda ,  Kyohei Sonoyama ,  Takuya Tanahashi ,  Teruhisa Miyazaki ,  Katsuya Iwano

IPC: C22C38/20 ,  C22C38/00

CPC classification number: C22C38/02 ,  C21D9/04 ,  C21D2211/004 ,  C21D2211/009 ,  C21D2221/00 ,  C21D2221/02 ,  C22C38/04

Abstract: A pearlite rail contains, by mass %, 0.65 to 1.20% of C; 0.05 to 2.00% of Si; 0.05 to 2.00% of Mn; and the balance composed of Fe and inevitable impurities, wherein at least part of the head portion and at least part of the bottom portion has a pearlite structure, and the surface hardness of a portion of the pearlite structure is in a range of Hv320 to Hv500 and a maximum surface roughness of a portion of the pearlite structure is less than or equal to 180 μm.

Abstract translation: 珠光体铁质量以质量％计含有C = 0.65〜1.20％ 0.05〜2.00％的Si; 0.05〜2.00％的Mn; 所述余量由Fe和不可避免的杂质组成，其中头部的至少一部分和底部的至少一部分具有珠光体组织，珠光体组织的一部分的表面硬度在Hv320〜Hv500的范围内 并且珠光体组织的一部分的最大表面粗糙度小于或等于180μm。