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    Nickel-rich wear resistant alloy and method of making and use thereof
    3.
    发明授权
    Nickel-rich wear resistant alloy and method of making and use thereof 有权
    富镍耐磨合金及其制造及使用方法

    公开(公告)号：US08613886B2

    公开(公告)日：2013-12-24

    申请号：US11476550

    申请日：2006-06-29

    申请人： Cong Yue Qiao ,  Todd Trudeau

    发明人： Cong Yue Qiao ,  Todd Trudeau

    IPC分类号： C22C19/05 ,  F16K1/42

    CPC分类号： F16K25/005 ,  C22C19/053 ,  C22C19/055 ,  C22C19/056 ,  C22C30/00 ,  F01L3/02 ,  F01L2101/00

    摘要： A nickel-rich wear resistant alloy comprises in weight % 0.5 to 2.5% C, 0.5 to 2% Si, up to 1% Mn, 20 to 30% Cr, S to 15% Mo, 5 to 15% W, 15 to 30% Fe, balance Ni. The alloy can include further alloying constituents such as up to 1.5% each of Ti, Al, Zr, Hf, Ta, V, Nb, Co, Cu, up to 0.5% B and up to 0.5% Mg plus Y. The alloy preferably has a microstructure containing predominantly eutectic reaction phases, fine intermetallic phases and precipitation carbides. For instance, the microstructure may contain Cr. Ni, W rich intermetallic phases and/or the microstructure may contain uniform lamellar type eutectic solidification structures. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines. For a valve seat insert containing up to 1.8% C the microstructure preferably is free of primary dendritic carbides. For a valve seat insert alloy containing over 1.8% C the microstructure preferably contains non-dendritic type primary carbides. For a valve seat insert containing up to 1.5% C the microstructure preferably includes solid solution phases encompassed by eutectic reaction products.

    摘要翻译： 富镍耐磨合金的重量百分比为0.5％至2.5％的C，0.5至2％的Si，至多1％的Mn，20至30％的Cr，S至15％的Mo，5至15％的W，15至30 ％Fe，余量Ni。 该合金可以包括进一步的合金成分，例如至多1.5％的Ti，Al，Zr，Hf，Ta，V，Nb，Co，Cu，至多0.5％B和至多0.5％的Mg + Y。 具有主要包含共晶反应相，细金属间相和沉淀碳化物的微结构。 例如，微结构可能含有Cr。 Ni，W丰富的金属间相和/或微结构可能含有均匀的层状型共晶凝固结构。 该合金可用作内燃机例如柴油发动机的阀座插件。 对于含有高达1.8％C的阀座插件，微结构优选不含初级树枝状碳化物。 对于含有超过1.8％C的阀座插入合金，微观结构优选含有非树枝状型的一次碳化物。 对于含有高达1.5％C的阀座插件，微结构优选包括由共晶反应产物包围的固溶体相。

    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF
    5.
    发明申请
    SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF 有权
    超级不锈钢及其制造和使用方法

    公开(公告)号：US20100147247A1

    公开(公告)日：2010-06-17

    申请号：US12335825

    申请日：2008-12-16

    申请人： CONG YUE QIAO ,  Todd Trudeau

    发明人： CONG YUE QIAO ,  Todd Trudeau

    IPC分类号： F01L3/02 ,  F16K25/00 ,  B21D53/00 ,  C22C38/44

    CPC分类号： F01L3/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2820/01 ,  Y10T29/49298 ,  Y10T29/49306

    摘要： A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9% C, 0.2 to 1.3% Si, 0 to 0.45% Mn, 32.5 to 37.5% Cr, 13.5 to 17.5% Ni, 3.2 to 5.5% Mo, 0 to 2% Nb, 0 to 0.5% B, 0 to 2% Zr and 30 to 51% Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9% C, 0.2 to 0.5% Si, 0.2 to 0.4% Mn, 33.0 to 35.0% Cr, 15.5 to 17.5% Ni, 4.0 to 4.5% Mo, 0.7 to 0.9% Nb, 0.07 to 0.13% B, 0 to 0.05% Zr and 40 to 46% Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.

    摘要翻译： 超辉石型不锈钢以重量％计含有0.15〜0.9％的C，0.2〜1.3％的Si，0〜0.45％的Mn，32.5〜37.5％的Cr，13.5〜17.5％的Ni，3.2〜5.5％的Mo，0〜2％的Nb ，0〜0.5％B，0〜2％Zr，30〜51％Fe。 在优选实施方案中，超辉石型不锈钢基本上由以重量％计，0.5％至0.9％的C，0.2至0.5％的Si，0.2至0.4％的Mn，33.0至35.0％的Cr，15.5至17.5％的Ni，4.0至4.5 ％Mo，0.7〜0.9％Nb，0.07〜0.13％B，0〜0.05％Zr和40〜46％Fe。 超级奥氏体不锈钢可用于柴油或天然气发动机等内燃机的阀座插件。

    NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS
    7.
    发明申请
    NICKEL BASED ALLOY USEFUL FOR VALVE SEAT INSERTS 审中-公开
    镍基合金有效用于阀座座

    公开(公告)号：US20100272597A1

    公开(公告)日：2010-10-28

    申请号：US12429837

    申请日：2009-04-24

    申请人： Cong Yue Qiao ,  Daniel W. Bancroft

    发明人： Cong Yue Qiao ,  Daniel W. Bancroft

    IPC分类号： C22C19/05 ,  C22C30/00

    CPC分类号： C22C19/055 ,  C22C19/053 ,  F01L3/02 ,  F01L2101/00 ,  F01L2820/01

    摘要： Disclosed herein is a nickel based alloy comprising, in weight percentage: carbon from about 0.5 to about 1.5; chromium from about 25 to about 35; tungsten from about 12 to about 18; iron from about 3.5 to about 8.5; molybdenum from about 1 to about 8; manganese up to about 0.50; silicon up to about 1.0; and the balance nickel and incidental impurities. The alloy is suitable for valve seat insert applications in internal combustion engines.

    摘要翻译： 本文公开了一种镍基合金，其以重量百分比计包含约0.5至约1.5的碳; 约25至约35的铬; 约12至约18的钨; 铁从约3.5至约8.5; 约1至约8的钼; 锰高达约0.50; 硅高达约1.0; 余量为镍和杂质。 该合金适用于内燃机中的阀座插入应用。

    Cobalt-rich wear resistant alloy and method of making and use thereof
    8.
    发明授权
    Cobalt-rich wear resistant alloy and method of making and use thereof 有权
    富钴耐磨合金及其制造和使用方法

    公开(公告)号：US07754143B2

    公开(公告)日：2010-07-13

    申请号：US12081366

    申请日：2008-04-15

    申请人： Cong Yue Qiao ,  Daniel W. Bancroft

    发明人： Cong Yue Qiao ,  Daniel W. Bancroft

    IPC分类号： C22C38/30 ,  C22C38/52 ,  B21K3/00 ,  F01L1/00 ,  C21D8/02

    CPC分类号： F01L3/02 ,  C21D6/002 ,  C21D6/007 ,  C21D6/02 ,  C21D9/0068 ,  C21D9/40 ,  C22C38/02 ,  C22C38/44 ,  C22C38/52 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2820/01 ,  Y10T29/49231

    摘要： A cobalt-rich wear resistant and corrosion resistant alloy comprises in weight %, 0.5 to 1.2% C, 0.6 to 2.1% Si, 17 to 24% Cr, 27 to 38.5% Fe, 1.4 to 20% W, 3.8 to 9.7% Mo, less than 1% Ni and balance Co. A preferred cobalt-rich alloy comprises in weight %, 0.5 to 0.9 C, 0.75 to 1.15% Si, 17.5 to 20.5 Cr, 27.0 to 32.0 Fe, 12.5 to 16.5 W, 6.25 to 8.25 Mo, 0.45 to 1.00 Ni and balance Co. The alloy preferably has a microstructure free of primary carbides and comprises up to about 50% by volume eutectic reaction phases in a solid solution matrix. The solid solution matrix is an αFe-αCo face-centered cubic solution with W, Cr and Mo as solute elements and the eutectic reaction products comprise a (Co,Cr)7(W,Mo)6 phase and an αFe-αCo phase. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines.

    摘要翻译： 富含钴的耐磨和耐腐蚀合金包括重量百分比为0.5至1.2％的C，0.6至2.1％的Si，17至24％的Cr，27至38.5％的Fe，1.4至20％的W，3.8至9.7％的Mo ，少于1％的Ni和余量的Co。优选的富钴合金包含重量％，0.5-0.9℃，0.75到1.15％的Si，17.5到20.5Cr，27.0到32.0Fe，12.5到16.5W，6.25到8.25 Mo，0.45〜1.00Ni和余量Co。合金优选具有不含一次碳化物的微结构，并且在固溶体基体中包含高达约50体积％的共晶反应相。 固溶体基体是以W，Cr和Mo为溶质的αFe-αCo面心立方溶液，共晶反应产物包含（Co，Cr）7（W，Mo）6相和αFe-αCo相。 该合金可用作内燃机例如柴油发动机的阀座插件。

    Surface treatment of prefinished valve seat inserts
    9.
    发明授权
    Surface treatment of prefinished valve seat inserts 有权
    预处理阀座插入件的表面处理

    公开(公告)号：US07216427B2

    公开(公告)日：2007-05-15

    申请号：US10321727

    申请日：2002-12-18

    申请人： Todd A. Trudeau ,  Daniel W. Bancroft ,  Cong Yue Qiao ,  Douglas W. Dooley

    发明人： Todd A. Trudeau ,  Daniel W. Bancroft ,  Cong Yue Qiao ,  Douglas W. Dooley

    IPC分类号： B23P11/00

    CPC分类号： F01L3/04 ,  F01L3/22 ,  Y10T29/4927 ,  Y10T29/49306 ,  Y10T29/49314 ,  Y10T29/4998 ,  Y10T29/49995

    摘要： A prehardened valve seat insert and a process for forming a prehardened valve seat insert for insertion into a cylinder head or an engine block of an internal combustion engine. The process comprises the steps of (a) forming the valve seat insert; (b) precision machining the valve seat insert to precise tolerances so that the valve seat insert can be installed in one of the cylinder head and the engine block without the need for additional seat machining; and (c) treating the valve seat insert to form a wear resistant surface layer prior to inserting the valve seat insert into one of the cylinder head and the engine block.

    摘要翻译： 一种预硬化阀座插入件和用于形成用于插入内燃机的气缸盖或发动机缸体中的预硬化阀座插入件的方法。 该方法包括以下步骤：（a）形成阀座插入件; （b）精确加工阀座插入件以获得精确的公差，使得阀座插入件可以安装在气缸盖和发动机缸体之一中，而无需额外的座椅加工; 以及（c）在将阀座插入件插入到气缸盖和发动机缸体之一之前，处理阀座插入件以形成耐磨表面层。