公开(公告)号：US11994084B2

公开(公告)日：2024-05-28

申请号：US17911861

申请日：2021-04-15

申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

发明人： Masayuki Iizumi ,  Motoi Kawashima ,  Takuya Kumagai ,  Makoto Sakaguchi ,  Kazunori Sawazaki ,  Hideho Narita ,  Ryuji Katayama

IPC分类号： F02F1/40 ,  C21D1/09 ,  C21D5/00 ,  C21D9/00

CPC分类号： F02F1/40 ,  C21D1/09 ,  C21D5/00 ,  C21D9/0068 ,  C21D2221/01 ,  F02F2200/00

摘要： The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).

公开(公告)号：US20220251691A1

公开(公告)日：2022-08-11

申请号：US17628935

申请日：2020-07-23

申请人： Brembo S.p.A

发明人： Bozena DUDZIK ,  Mariusz BIERONSKI ,  Fabiano CARMINATI

IPC分类号： C22C37/10 ,  C22C37/08 ,  C21C1/08 ,  C21D5/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/46 ,  F16D65/12

摘要： The invention consists of a gray cast iron comprising carbon, silicon, vanadium, manganese, nickel, chromium, molybdenum, copper, sulfur, phosphorous, tin and titanium, wherein: the percentage by weight of carbon is from 3.70 to 3.90%; the percentage by weight of silicon is from 1.30 to 2.10%; the percentage by weight of vanadium is from 0.10 to 0.15%; the percentage by weight of manganese is from 0.60 to 0.90%; the percentage by weight of nickel is from 0.05 to 0.50%; the percentage by weight of chromium is from 0.20 to 0.35%; the percentage by weight of molybdenum is no more than 0.10%; the percentage by weight of copper is no more than 0.35%; the percentage by weight of sulfur is less than 0.10%; the percentage by weight of phosphorous is less than 0.10%; the percentage by weight of tin is less than 0.10%; the percentage by weight of titanium is no more than 0.01%; the remainder by weight being iron.

公开(公告)号：US11352676B2

公开(公告)日：2022-06-07

申请号：US17289000

申请日：2020-01-23

申请人： KOMATSU LTD.

发明人： Yusuke Imadu ,  Toshiyuki Iseki ,  Takaaki Sasaki ,  Motomi Mizugai

IPC分类号： F16H57/08 ,  C21D5/00 ,  C21D1/18

摘要： A machine component, made of steel or cast iron and having a circular hole that opens in a first surface, includes a plurality of first quench-hardened regions that include the first surface and are arranged apart from each other along a first circle surrounding the hole when viewed in a plane in a direction perpendicular to the first surface, and a base region that is a region other than the first quench-hardened regions.

公开(公告)号：US10400707B2

公开(公告)日：2019-09-03

申请号：US15660154

申请日：2017-07-26

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Qigui Wang ,  Marie-christine Jones ,  Yucong Wang

IPC分类号： F02F1/00 ,  C22F1/00 ,  C22F1/04 ,  C22F1/06 ,  C21D1/18 ,  C21D5/00 ,  F02F7/00

摘要： A method and system for processing an engine block that includes a cylinder liner. The engine block having a first material with different coefficient of thermal expansion than a second material forming the cylinder liner. The method includes providing an insulating barrier to the cylinder liner, and quenching the engine block. The insulating barrier provides a lower cooling rate to the second material forming the cylinder liner than a cooling rate for the first material forming the engine block during the quenching.

公开(公告)号：US10294550B2

公开(公告)日：2019-05-21

申请号：US15125477

申请日：2015-02-06

申请人： Doosan Infracore Co., Ltd.

发明人： Young-Kyu Ju ,  Ki-Hwan Jung ,  Jong-Kwon Chung ,  Sik Yang ,  Jae-Hyoung Hwang ,  Dong-Seob Shim ,  Sang-Beom Kim

IPC分类号： C22C37/10 ,  C22C37/06 ,  C22C33/08 ,  G01N25/00 ,  B22D25/02 ,  F01N13/14 ,  G01N33/20 ,  H01J49/26 ,  B22D17/00 ,  C22C37/04 ,  G01N33/205 ,  C22C33/04 ,  C21C1/10 ,  C21D5/00

摘要： Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (C) in a range of 3.2-3.4 wt %, silicon (Si) in a range of 4.3-4.8 wt %, manganese (Mn) in a range of 0.2-0.3 wt %, molybdenum (Mo) in a range of 0.8-1.0 wt %, vanadium (V) in a range of 0.4-0.6 wt %, chrome (Cr) in a range of 0.2-0.4 wt %, niobium (Nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (Fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (Ba) in a range of 0.0045-0.0075 wt %. A content ratio of chrome (Cr) and barium (Ba) (Cr/Ba) is in a range from about 26 to about 89.

公开(公告)号：US10077488B2

公开(公告)日：2018-09-18

申请号：US14929078

申请日：2015-10-30

申请人： Toshiba Kikai Kabushiki Kaisha

发明人： Ryousuke Fujimoto ,  Takumi Hareyama

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

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

摘要： A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided.The high-strength, high-damping-capacity cast iron is obtained by a method including performing a graphite spheroidizing treatment on a molten metal, and consists of 2% to 4% of C, 1% to 5% of Si, 0.2% to 0.9% of Mn, 0.1% or less of P, 0.1% or less of S, 3% to 7% of Al, 0% to 1% of Sb, 0% to 0.5% of Sn, 0.02% to 0.10% of Mg, 01% to 0.5% of RE (Ce, La), Fe as balance, and unavoidable impurity.

公开(公告)号：US20180187678A1

公开(公告)日：2018-07-05

申请号：US15857206

申请日：2017-12-28

申请人： TRANE INTERNATIONAL INC.

发明人： George Hansen

IPC分类号： F04C18/02 ,  C21D5/00 ,  F04C29/12

CPC分类号： F04C18/0215 ,  C21D5/00 ,  C21D2211/001 ,  F04C23/008 ,  F04C29/124 ,  F04C2230/40 ,  F05C2201/0439 ,  F05C2201/0445 ,  F05C2251/02 ,  F05C2251/10

摘要： A scroll compressor includes scroll members that are made of austempered grey iron in whole or in part. The austempering process can increases fatigue strength and toughness of a grey iron while maintaining its good machinability and vibration damping characteristics. Use of austempered grey iron scroll members allows the scroll compressor to improve its capacity, efficiency, and durability.

公开(公告)号：US09644245B2

公开(公告)日：2017-05-09

申请号：US14613284

申请日：2015-02-03

申请人： LG Electronics Inc.

发明人： Jaebong Park

IPC分类号： C22C33/08 ,  C22C33/10 ,  C22C33/12 ,  C21D1/20 ,  C21D5/00 ,  F01C21/10 ,  F04C2/344 ,  C21C1/10 ,  C22C37/04 ,  C22C37/06 ,  C22C37/10 ,  F01C21/08 ,  B22D25/02 ,  B22D27/20 ,  C21D9/00 ,  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.

公开(公告)号：US09273385B2

公开(公告)日：2016-03-01

申请号：US13576536

申请日：2011-02-01

申请人： Kevin Dolman

发明人： Kevin Dolman

IPC分类号： C22C37/06 ,  C22C38/28 ,  C22C38/26 ,  C22C38/38 ,  C22C38/36 ,  C21D5/00 ,  C21D5/04 ,  C22C33/08 ,  C22C37/10 ,  B22D25/06 ,  C21D6/00

CPC分类号： C22C38/38 ,  B22D25/06 ,  C21D5/04 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C22C33/08 ,  C22C37/06 ,  C22C37/10

摘要： A casting of a white cast iron alloy and a method of producing the casting are disclosed. A white cast alloy is also disclosed. The casting has a solution treated microstructure that comprises a ferrous matrix of retained austenite and chromium carbides dispersed in the matrix, with the carbides comprising 15 to 60% volume fraction of the alloy. The matrix composition comprises: manganese: 8 to 20 wt %; carbon: 0.8 to 1.5 wt %; chromium: 5 to 15 wt %; and iron: balance (including incidental impurities).

摘要翻译： 公开了一种白色铸铁合金的铸造和该铸件的制造方法。 还公开了一种白色铸造合金。 该铸件具有经处理的微结构，其包含分散在基体中的残留奥氏体亚铁基体和碳化铬，其中碳化物占合金体积分数的15-60％。 基质组合物包含：锰：8〜20重量％ 碳：0.8〜1.5重量％ 铬：5〜15重量％ 和铁：平衡（包括杂质）。

公开(公告)号：US20150292053A1

公开(公告)日：2015-10-15

申请号：US14441971

申请日：2012-11-29

申请人： GM Global Technology Operations LLC

发明人： Xiaochuan Xiong ,  Jeff Wang

IPC分类号： C21D5/00 ,  C23C8/56 ,  C23C8/04 ,  C22C37/00 ,  C21D9/00 ,  C21D7/00 ,  C21D8/00 ,  C23C8/32 ,  C23F17/00

CPC分类号： C21D5/00 ,  B24B39/045 ,  C21D7/00 ,  C21D7/08 ,  C21D8/005 ,  C21D9/0068 ,  C22C37/00 ,  C23C8/04 ,  C23C8/32 ,  C23C8/56 ,  C23F17/00 ,  G01B21/30 ,  Y10T29/47

摘要： A method for treating a cast iron workpiece to increase a useful life thereof includes machining the workpiece to provide a finish surface thereon and deforming the finish surface of the workpiece by rubbing the finish surface against a blunt tool (80,80′), thereby forming a nanocrystallized surface layer (70). The workpiece is nitrocarburized, the nanocrystallized surface layer accelerating diffusion of nitrogen atoms and carbon atoms therethrough. The nitrocarburizing taking place: i) if the workpiece is stress relived prior to machining, for about 1 hour to about 2 hours at a temperature ranging from about 550° C. to about 570° C., or ii) if the workpiece is not stress relieved prior to machining, for about 5 hours to about 10 hours at a temperature ranging from about 370° C. to about 450° C. The nitrocarburizing renders the nanocrystallized surface layer into i) a friction surface, or ii) a corrosion-resistant surface.

摘要翻译： 一种用于处理铸铁工件以增加其使用寿命的方法包括加工工件以在其上提供精加工表面并通过将精加工表面摩擦钝刀（80,80'）而使工件的精加工表面变形，从而形成 纳米结晶表面层（70）。 工件被氮碳共渗，纳米结晶表面层加速了氮原子和碳原子的扩散。 发生氮碳共渗：i）如果工件在机械加工之前重新应力，在约550℃至约570℃的温度范围内约1小时至约2小时，或ii）如果工件不是 在机械加工之前，在约370℃至约450℃的温度下减压约5小时至约10小时。氮碳共渗使纳米结晶表面层成为i）摩擦表面，或ii） 耐磨面。