公开(公告)号：US20190093782A1

公开(公告)日：2019-03-28

申请号：US15535780

申请日：2015-12-16

申请人： Robert Bosch GmbH

发明人： Holger Muehlhoff ,  Robert Schloeder ,  Dieter Born ,  Wasilij Schieder

IPC分类号： F16K27/02 ,  F16K15/02 ,  B23P15/00 ,  C21D5/00 ,  C21D1/06

摘要： A pressure-limiting valve includes a housing and a pressure adjustment device provided therein. The pressure-limiting valve further includes a valve seat arranged in the housing and configured to be closed by a spring-loaded closing element of the pressure adjustment device. The housing is composed of cast iron having spherical graphite. The housing is surface-hardened at least in a region of the valve seat.

公开(公告)号：US20180148808A1

公开(公告)日：2018-05-31

申请号：US15576354

申请日：2017-03-09

申请人： Samyoung Machinery Co., Ltd.

发明人： Geum Tai HAN

IPC分类号： C21D9/40 ,  C21D1/09 ,  C22C37/10 ,  C22C37/08 ,  F16J9/26 ,  B22D17/20 ,  C21D8/00 ,  C21D5/00

CPC分类号： C21D9/40 ,  B22D17/20 ,  C21D1/09 ,  C21D5/00 ,  C21D8/005 ,  C21D2211/004 ,  C21D2211/009 ,  C22C37/08 ,  C22C37/10 ,  F16J9/26

摘要： The present invention relates to an alloy cast iron, and a piston ring containing the same, the alloy cast iron including: a pearlite matrix; and a graphite structure and a steadite-type eutectic structure which are precipitated in the pearlite matrix, wherein the steadite-type eutectic structure includes at least one element selected from boron (B) and vanadium (V), at least one element selected from chromium (Cr) and molybdenum (Mo), and copper (Cu).

公开(公告)号：US09938611B2

公开(公告)日：2018-04-10

申请号：US14416436

申请日：2014-08-14

申请人： Pei Yu

发明人： Pei Yu

IPC分类号： C22C37/10 ,  C22C37/06 ,  C22C33/08 ,  C22C37/04 ,  C21D5/00 ,  C21D9/00

CPC分类号： C22C37/10 ,  C21D5/00 ,  C21D9/0068 ,  C22C33/08 ,  C22C37/04 ,  C22C37/06

摘要： The invention discloses a high strength nodular cast iron pole and a preparation technology thereof. The preparation technology is characterized by comprising the following steps: (1) preparation before pole casting, to be specific, preparation of raw materials, smelting of iron, adding of alloying elements and nodulizing; (2) a pole casting procedure, to be specific, casting and inoculation treatment; and (3) heat treatment. The invention also provides the high strength nodular cast iron pole prepared by adopting the preparation technology, comprising multiple tower poles which are sequentially connected in an inserted manner, wherein each tower pole is a cone-frustum hollow column which has the conicity of 1000:11-26; the top end of the high strength nodular cast iron pole is equipped with a tower cap. The high strength nodular cast iron pole has the advantages of high bearing capacity, thin wall thickness, light weight, low manufacturing cost and the like.

公开(公告)号：US09316313B2

公开(公告)日：2016-04-19

申请号：US14741678

申请日：2015-06-17

申请人： FEDERAL-MOGUL CORPORATION

发明人： Haron Ogega Gekonde

IPC分类号： C22C37/10 ,  F16J9/26 ,  B22D25/06 ,  C21D5/00 ,  C21D5/02 ,  C22C33/08 ,  C21D9/00 ,  C22C37/06 ,  C22C37/08

CPC分类号： F16J9/26 ,  B22D25/06 ,  C21D5/00 ,  C21D5/02 ,  C21D9/0068 ,  C22C33/08 ,  C22C37/06 ,  C22C37/08 ,  C22C37/10

摘要： A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, austenitizing, quenching, and tempering the alloy.

摘要翻译： 由铸铁形成的活塞环提供了改进的机械加工性能和卓越的性能和最低成本。 铸铁包括2.2-2.9重量％ ％碳，3.2〜4.2wt。 ％硅，0.75〜1.25重量％ ％铜，1.0〜1.5重量％ ％锰，0.09〜0.15重量％ ％硫，不大于0.2wt。 ％磷，平均碳当量为3.8。 铸铁优选包括马氏体与MnS的基质和分散在其中的碳化物。 基质也优选不含铁素体，奥氏体和稳定体。 铸铁通过铸造，奥氏体化，淬火和回火合金形成。

公开(公告)号：US20160068923A1

公开(公告)日：2016-03-10

申请号：US14943110

申请日：2015-11-17

申请人： RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  POSCO

发明人： Sang-Won Kim ,  Sang-Hoon Yoon ,  Seong Hoon Yi ,  Young-Geun Son ,  Eon-Byeong Park ,  Oh Joon Kwon ,  Sang-Wook Ha ,  Seung-Dueg Choi ,  Gab-Sik Byun

IPC分类号： C21D6/00 ,  C21D5/00 ,  C22C1/02 ,  C21D1/00 ,  C22C45/02 ,  C22C1/00

CPC分类号： C21D6/00 ,  C21D1/00 ,  C21D5/00 ,  C22C1/002 ,  C22C1/02 ,  C22C33/003 ,  C22C45/02

摘要： Provided is an iron-based amorphous alloy and a method of manufacturing the same.More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula FeαCβSiγBxPyCrz, wherein α, β, γ, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein α is expressed by α=100−(β+γ+x+y+z) atomic %, β is expressed by 13.5 atomic %≦β≦17.8 atomic %, γ is expressed by 0.30 atomic %≦γ≦1.50 atomic %, x is expressed by 0.1 atomic %≦x≦4.0 atomic %, y is expressed by 0.8 atomic %≦y≦7.7 atomic %, and z is expressed by 0.1 atomic %≦z≦3.0 atomic %.

摘要翻译： 提供一种铁基非晶合金及其制造方法。 更具体地说，提供了由通式FeαC＆bgr;SiγBxPyCrz表示的高碳铁基非晶合金，其中α，bgr，γ，x，y和z是铁（Fe），碳（C），硅 （Si），硼（B），磷（P）和铬（Cr），其中α由α= 100 - （＆bgr; +γ+ x + y + z）表示，原子％ 由13.5原子％＆nlE;＆bgr;＆nlE; 17.8原子％表示，γ由0.30原子％＆lt; nEE表示;γ＆nlE; 1.50原子％，x表示为0.1原子％＆nlE; x＆lt; lE; 4.0原子％，y表示为 0.8原子％＆nlE; y＆nlE; 7.7原子％，z表示为0.1原子％＆amp; nlE; z＆nlE; 3.0原子％。

公开(公告)号：US09169526B2

公开(公告)日：2015-10-27

申请号：US13675818

申请日：2012-11-13

申请人： LG Electronics Inc.

发明人： Jaebong Park

IPC分类号： C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  C21C1/10 ,  F01C21/08 ,  B22D25/02 ,  B22D27/20 ,  C21D5/00 ,  C21D9/00 ,  C22C33/08 ,  F04C18/356

CPC分类号： C21C1/105 ,  B22D25/02 ,  B22D27/20 ,  C21D5/00 ,  C21D9/0068 ,  C22C33/08 ,  C22C33/10 ,  C22C33/12 ,  C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  F01C21/0809 ,  F04C18/356 ,  F04C2230/21 ,  F05C2201/0442 ,  Y10T428/1266

摘要： A nodular graphite cast iron, a method for fabricating a vane for a rotary compressor using nodular graphite cast iron, and a vane for a rotary compressor using the same are provided. The nodular graphite cast iron includes 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w % of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants, and includes a bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide.

摘要翻译： 提供球墨铸铁，使用球墨铸铁的旋转式压缩机的叶片的制造方法以及使用其的旋转式压缩机的叶片。 结节状石墨铸铁包括3.4重量％至3.9重量％的碳（C），2.0重量％至3.0重量％的硅（Si），0.3重量％至1.0重量％的锰（Mn），0.1重量％至1.0 铬（Cr）的重量％，钛（Ti）0.04重量％〜0.15重量％，磷（P）小于0.08重量％，硫（S）小于0.025重量％，0.03重量％〜0.05重量％ 的镁（Mg），0.02重量％〜0.04重量％的稀土资源，铁（Fe）和杂质作为残留物，并且包括贝氏体基质结构，球状石墨和15体积％至35体积％的碳化物。

公开(公告)号：US20150285378A1

公开(公告)日：2015-10-08

申请号：US14741678

申请日：2015-06-17

申请人： FEDERAL-MOGUL CORPORATION

发明人： Haron Ogega Gekonde

IPC分类号： F16J9/26 ,  C21D9/00 ,  B22D25/06 ,  C22C37/08 ,  C22C37/10 ,  C21D5/00 ,  C22C37/06

CPC分类号： F16J9/26 ,  B22D25/06 ,  C21D5/00 ,  C21D5/02 ,  C21D9/0068 ,  C22C33/08 ,  C22C37/06 ,  C22C37/08 ,  C22C37/10

摘要： A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, autenitizing, quenching, and tempering the alloy.

摘要翻译： 由铸铁形成的活塞环提供了改进的机械加工性能和卓越的性能和最低成本。 铸铁包括2.2-2.9重量％ ％碳，3.2〜4.2重量％ ％硅，0.75〜1.25重量％ ％铜，1.0〜1.5重量％ ％锰，0.09〜0.15重量％ ％硫，不大于0.2wt。 ％磷，平均碳当量为3.8。 铸铁优选包括马氏体与MnS的基质和分散在其中的碳化物。 基质也优选不含铁素体，奥氏体和稳定体。 铸铁通过铸造，再生，淬火和回火合金而形成。

公开(公告)号：US20150233074A1

公开(公告)日：2015-08-20

申请号：US14383443

申请日：2013-12-24

申请人： Pei YU

发明人： Pei Yu

IPC分类号： E02D5/28 ,  B22D13/02 ,  E02D27/12 ,  C21D8/10 ,  C21D9/08 ,  C22C37/10 ,  C21D5/00

CPC分类号： E02D5/285 ,  B22D13/02 ,  C21D5/00 ,  C21D8/105 ,  C21D9/08 ,  C22C28/00 ,  C22C33/08 ,  C22C37/04 ,  C22C37/10 ,  E02D5/66 ,  E02D27/12

摘要： The present invention provides a nodular cast iron foundation pile pipe and a method for preparing same, including following steps: (1) preparation before pipe casting: including molten iron preparation, spheroidization and coating spraying on an inner wall of a pipe mold; (2) pipe casting process: including centrifugal casting and pipe drawing; (3) annealing process; (4) finishing process. The present invention further provides the foundation pile pipe manufactured with the above-mentioned method wherein the flange and the foundation pile pipe are integrally cast or welded. In the present invention, the nodular cast iron is used as the material of the foundation pile pipe instead of Q345 steel used in the prior art. As a result, the overall strength is enhanced. The present invention possesses advantages such as corrosion resistance, long service life, low manufacturing cost, low labor intensity, short construction period and being suitable for mechanized construction.

摘要翻译： 本发明提供一种球墨铸铁基础桩管及其制备方法，包括以下步骤：（1）管道铸造前的准备：包括铁水制备，球化和喷涂在管模内壁上; （2）管道铸造工艺：包括离心铸造和管道拉拔; （3）退火工艺; （4）整理过程。 本发明还提供了一种用上述方法制造的地基桩管，其中法兰和地桩桩整体铸造或焊接。 在本发明中，代替现有技术中使用的Q345钢，将球墨铸铁用作基桩管的材料。 结果，综合实力得到提高。 本发明具有耐腐蚀，使用寿命长，制造成本低，劳动强度低，施工周期短，适用于机械化施工等优点。

公开(公告)号：US08858736B2

公开(公告)日：2014-10-14

申请号：US12519422

申请日：2007-09-03

申请人： Richard Larker

发明人： Richard Larker

IPC分类号： C21D5/00

CPC分类号： C21D5/00 ,  C21D9/00 ,  C22C37/04 ,  E02F3/3677 ,  F16D65/125 ,  F16D2200/0013 ,  F16D2250/00

摘要： Austempered ductile iron (ADI) for components requiring high strength and/or ductility, which has a silicon content of 3.35 weight-% to 4.60 weight-%, and which is obtainable by performing an ADI-heat treatment using an austenitization temperature of at least 910° C.

摘要翻译： 用于需要高强度和/或延展性的组分的奥氏体球墨铸铁（ADI），其具有3.35重量％至4.60重量％的硅含量，并且其可通过至少使用奥氏体化温度进行ADI-热处理而获得 910℃

公开(公告)号：US20140048185A1

公开(公告)日：2014-02-20

申请号：US14004994

申请日：2012-03-13

申请人： Pieter Cornelis Van Eldijk ,  Abraham van Eldijk

发明人： Pieter Cornelis Van Eldijk ,  Abraham van Eldijk

IPC分类号： C21D5/00

CPC分类号： C21D5/00 ,  C21D8/00 ,  C21D8/005

摘要： The invention relates to a method of heat treating a cast iron having graphite particles, in particular a cast iron having graphite nodules with a substantially spherical geometry. The method comprises the step of subjecting the cast iron to a first austenitizing temperature, in order to obtain a cast iron having an austenite matrix with a substantially homogeneous carbon content. Subsequently, at least part of the cast iron is subjected to at least a second, different austenitizing temperature in order to change, in at least part of the cast iron, the carbon concentration in a part of the matrix surrounding the (spherical) geometry of the graphite particles. The method yields improved controllability on strength properties characteristics for cast irons including malleable irons, in particular for ductile iron.

摘要翻译： 本发明涉及一种热处理具有石墨颗粒的铸铁的方法，特别是具有基本上球形几何形状的石墨结核的铸铁。 该方法包括对铸铁进行第一奥氏体化温度的步骤，以获得具有基本均匀碳含量的奥氏体基体的铸铁。 随后，铸铁的至少一部分经受至少第二个不同的奥氏体化温度，以便在铸铁的至少一部分中改变围绕（球形）几何形状的基体的一部分中的碳浓度 石墨颗粒。 该方法对于铸铁的强度性能特性提高了可控性，包括有韧性的铁，特别是球墨铸铁。