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1. 发明申请

US20220251691A1 CAST IRON, IN PARTICULAR FOR COMPONENTS OF DISC BRAKES 有权
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.

2. 发明授权

US11352676B2 Machine component 有权
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.

3. 发明授权

US10400707B2 Method and system for processing an automotive engine block 有权
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.

4. 发明授权

US10294550B2 Heat resistant spheroidal graphite cast iron, method of manufacturing the same and engine exhaust system part including the same 有权
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.

5. 发明授权

US10077488B2 High-strength, high-damping-capacity cast iron 有权
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.

6. 发明申请

US20180187678A1 AUSTEMPERED GREY IRON SCROLL AND METHOD OF MAKING THEREOF 审中-公开
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.

7. 发明授权

US09644245B2 Method for fabricating vane using a nodular graphite cast iron 有权
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.

8. 发明授权

US09273385B2 Metal alloys for high impact applications 有权
标题翻译：用于高冲击应用的金属合金
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）。

9. 发明申请

US20150292053A1 METHOD FOR TREATING A CAST IRON WORKPIECE AND WORKPIECE FORMED THEREBY 审中-公开
标题翻译：用于处理铸铁工件和形成的工件的方法
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。

10. 发明授权

US08968497B2 Methods of forming and austempering a ductile iron article and article made thereby 有权
标题翻译：球墨铸铁制品和由此制成的制品的成型和奥氏体回火方法
公开(公告)号：US08968497B2
公开(公告)日：2015-03-03
申请号：US13294365
申请日：2011-11-11
申请人： Jason Robert Parolini , Junyoung Park
发明人： Jason Robert Parolini , Junyoung Park
IPC分类号： C21D8/00 , C21D5/00 , C21D1/20 , F03D11/02
CPC分类号： C21D5/00 , C21D1/20 , C21D2211/001 , C21D2211/006 , F03D9/25 , F03D15/00 , F03D15/10 , F05B2230/40 , F05B2240/60 , F05C2201/0445 , Y02E10/72 , Y02E10/722 , Y02P70/523
摘要： A method of making a ductile iron article is disclosed. The method includes providing a ductile iron article preform. The method also includes deforming the ductile iron article preform by hot-working to provide a hot-worked portion of the article. The method further includes cooling the article to an austempering temperature. Still further, the method includes austempering the ductile iron article preform for a predetermined time sufficient to provide an austempered article preform comprising an austempered microstructure, wherein the austempered microstructure of the hot-worked portion is different than in other portions of the article. A ductile iron wind turbine shaft is also disclosed. The ductile iron wind turbine shaft has an austempered microstructure comprising an ausferrite matrix and a plurality of graphite nodules. The austempered microstructure has a deformed portion, the deformed portion has a microstructure that is different than the microstructure of the other portion of the shaft.
摘要翻译：公开了制造球墨铸铁制品的方法。该方法包括提供球墨铸铁制品预制件。该方法还包括通过热加工来变形球墨铸铁制品预制件以提供制品的热加工部分。该方法还包括将制品冷却至奥氏体回火温度。此外，该方法包括将球墨铸铁制品预制件淬火预定时间足以提供包含奥氏体微结构的奥氏体制品预制件，其中热加工部分的奥氏体微结构与制品的其它部分不同。还公开了一种球墨铸铁风力涡轮机轴。球墨铸铁风力涡轮机轴具有奥氏体微结构，其包含氧化铁基体和多个石墨结节。奥氏体微结构具有变形部分，变形部分具有与轴的另一部分的微结构不同的微观结构。

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