公开(公告)号：US11525172B1

公开(公告)日：2022-12-13

申请号：US17539614

申请日：2021-12-01

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M. Doll

IPC分类号： C22C19/05 ,  F01L3/02

摘要： A nickel-niobium intermetallic alloy contains, in weight percent, silicon from about 1.5 to about 3.5 percent; chromium from 5 to about 15 percent; nickel from about 45 to about 75 percent; niobium from about 14 to about 30 percent; cobalt up to about 7 percent; and iron up to about 10 percent; wherein the nickel plus niobium content is about 70 to about 90 percent and the total silicon, chromium, cobalt and iron content is about 10 to about 30 percent. The alloy can have a cast microstructure of at least 95 volume percent intermetallic phases and no more than about 5 volume percent solid solution phases. The intermetallic phases can include rod-like intermetallic phases of Ni3Nb and Ni8Nb7. The microstructure can be a lamellar microstructure and/or the microstructure can have less than 5 volume percent Ni—Fe and Ni—Co rich intermetallic phases.

公开(公告)号：US11155904B2

公开(公告)日：2021-10-26

申请号：US16508700

申请日：2019-07-11

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M Doll ,  Heidi Ziegler Doll ,  Douglas W. Dooley ,  Daniel W. Bancroft

IPC分类号： C22C38/10 ,  C22C38/52 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/00 ,  C22C1/04 ,  F04B53/10

摘要： A cobalt-rich wear resistant and corrosion resistant alloy useful for parts of a combustion engine such as valve seat inserts includes, in weight % about 0.1 to about 0.8% C, about 0.1 to about 1.5% Mn, about 3 to about 5% Si, about 10 to about 20% Cr, about 5 to about 32% Fe, about 0.5 to about 4% W, about 10 to about 30% Mo, up to about 20% Ni, about 20 to about 40% Co, up to about 6% V, up to about 3% Nb, total V plus Nb of about 0.5 to about 8.5% and balance unavoidable impurities including up to 0.035% P, up to 0.015% S and up to 0.250% N.

公开(公告)号：US20190055860A1

公开(公告)日：2019-02-21

申请号：US15679651

申请日：2017-08-17

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David Doll ,  Todd Trudeau ,  Douglas Dooley

IPC分类号： F01L3/02 ,  C22C38/54 ,  C22C38/52 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D6/00 ,  C21D1/18

摘要： An iron-based alloy includes, in weight percent, carbon from about 1 to about 2 percent; manganese from about 0.1 to about 1 percent; silicon from about 0.1 to about 2.5 percent; chromium from about 11 to about 19 percent; nickel up to about 8 percent; vanadium from about 0.8 to about 5 percent; molybdenum from about 11 to about 19 percent; tungsten up to about 0.5 percent; niobium from about 1 to about 4 percent; cobalt up to about 5.5 percent; boron up to about 0.5 percent; nitrogen up to about 0.5 percent, copper up to about 1.5 percent, sulfur up to about 0.3 percent, phosphorus up to about 0.3 percent, up to about 5 percent total of tantalum, titanium, hafnium and zirconium; iron from about 50 to about 70 percent; and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines.

公开(公告)号：US11530460B1

公开(公告)日：2022-12-20

申请号：US17368261

申请日：2021-07-06

申请人： L.E. Jones Company

发明人： Cong Yue Qiao

IPC分类号： C22C38/44 ,  C21D9/00 ,  C22C38/54 ,  C22C38/52 ,  C22C38/48 ,  C22C38/46 ,  C22C38/42 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  F01L3/02 ,  C22C38/58

摘要： A low-carbon iron-chromium-molybdenum alloy comprises, in weight percent: carbon from about 0.1 to about 0.8 percent; manganese from about 0.1 to about 4 percent; silicon from about 0.1 to about 0.5 percent; chromium from 14 to about 16 percent; nickel up to about 8 percent; vanadium up to about 0.1 percent; molybdenum from 14 to about 16 percent; tungsten up to about 6 percent; niobium from about 0.1 to about 0.8 percent; cobalt up to about 0.2 percent; boron up to 0.1 percent; nitrogen up to about 0.1 percent; copper up to about 1.5 percent; sulfur up to about 0.05 percent; phosphorus up to about 0.05 percent; balance iron from about 50 to about 65 percent; and incidental impurities wherein the alloy contains a ratio of Cr/Mo of about 0.9 to about 1.1. The alloy can be used as a valve seat insert for combustion engines.

公开(公告)号：US20220349487A1

公开(公告)日：2022-11-03

申请号：US17243821

申请日：2021-04-29

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M. Doll

IPC分类号： F16K25/00 ,  B22F5/00 ,  B22F3/12 ,  B22F3/24 ,  F01L3/02

摘要： A powder admixture useful for making a sintered valve seat insert includes a first iron-base powder and second iron-base powder wherein the first iron-base powder has a higher hardness than the second iron-base powder, the first iron-base powder including, in weight percent, 1-2% C, 10-25% Cr, 5-20% Mo, 15-25% Co, and 30-60 wt. % Fe, and the second iron-base powder including, in weight %, 1-1.5% C, 3-15% Cr, 5-7% Mo, 3-6% W, 1-1.7% V, and 60-85% Fe. The powder admixture can be sintered to form a sintered valve seat insert optionally infiltrated with copper.

公开(公告)号：US11215090B2

公开(公告)日：2022-01-04

申请号：US16867881

申请日：2020-05-06

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David Doll ,  Todd Trudeau ,  Douglas Dooley

IPC分类号： C21D1/25 ,  F01L3/02 ,  C21D9/00 ,  C22C38/22 ,  C22C38/24 ,  C21D6/02 ,  C22C38/26 ,  C22C38/00 ,  C22C38/42 ,  C21D6/00 ,  C21D1/18 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C22C38/54 ,  F16K25/00

摘要： An iron-based alloy includes, in weight percent, carbon from about 1 to about 2 percent; manganese from about 0.1 to about 1 percent; silicon from about 0.1 to about 2.5 percent; chromium from about 11 to about 19 percent; nickel up to about 8 percent; vanadium from about 0.8 to about 5 percent; molybdenum from about 11 to about 19 percent; tungsten up to about 0.5 percent; niobium from about 1 to about 4 percent; cobalt up to about 5.5 percent; boron up to about 0.5 percent; nitrogen up to about 0.5 percent, copper up to about 1.5 percent, sulfur up to about 0.3 percent, phosphorus up to about 0.3 percent, up to about 5 percent total of tantalum, titanium, hafnium and zirconium; iron from about 50 to about 70 percent; and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines.

公开(公告)号：US20220243296A1

公开(公告)日：2022-08-04

申请号：US17163914

申请日：2021-02-01

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M. Doll

IPC分类号： C21D9/00 ,  C22C38/54 ,  C22C38/52 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  F01L3/02

摘要： An iron-based alloy includes, in weight percent, carbon from about 0.75 to about 2 percent; manganese from about 0.1 to about 1 percent; silicon from about 0.1 to about 1 percent; chromium from about 3 to about 6 percent; nickel up to about 4 percent; vanadium from about 1 to about 3 percent; molybdenum from about 4 to about 7 percent; tungsten from about 4 to about 7 percent; cobalt from about 4 to about 7 percent; boron up to about 0.1 percent; nitrogen from about 0.001 to about 0.15 percent, aluminum from about 0.001 to about 0.6 percent, copper from about 0.1 to about 1 percent, sulfur up to about 0.3 percent, phosphorus up to about 0.3 percent, up to about 5 percent total of tantalum, titanium, hafnium and zirconium; iron from about 65 to about 80 percent; and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines.

公开(公告)号：US20190009327A1

公开(公告)日：2019-01-10

申请号：US15641646

申请日：2017-07-05

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M. Doll ,  Donald K. Morris ,  Howard Delorme, JR.

IPC分类号： B22C9/02 ,  B22C9/20 ,  B22C9/22

CPC分类号： B22C9/02 ,  B22C9/101 ,  B22C9/20 ,  B22C9/22 ,  B22C13/08 ,  F01L3/02 ,  F01L2101/00 ,  F01L2103/01 ,  F02F1/24

摘要： A method of casting valve seat inserts comprises pouring molten metal into a gating system of a mold plate stack wherein mold plates are located between top and bottom molds wherein the gating system includes a casting header, down-sprue, horizontal sprue, up-sprues, runners, and gates in fluid communication with mold cavities configured to form the valve seat inserts. The method includes filling the mold cavities with the molten metal, and controlling solidification of the molten metal in the mold cavities by means of an outer thermal barrier which retards heat transfer in mold plate material between the mold cavities and an outer periphery of the mold plate stack. An inner thermal barrier can be sued to further control solidification of the molten metal. Valve seat inserts produced using the thermal jacket molds can exhibit an improved microhardness distribution which provides improved machining and higher yield.

公开(公告)号：US20170051642A1

公开(公告)日：2017-02-23

申请号：US15251286

申请日：2016-08-30

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  Peter Vennema ,  Douglas W. Dooley ,  David Doll

IPC分类号： F01L3/04 ,  C22C38/54 ,  C22C38/52 ,  C22C38/48 ,  C21D1/18 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D9/00 ,  C21D6/00 ,  C22C38/56 ,  C22C38/46

CPC分类号： F01L3/04 ,  B23P19/00 ,  C21D1/18 ,  C21D5/00 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D9/0068 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C22C38/54 ,  C22C38/56 ,  F01L3/02 ,  Y10T29/49306

摘要： An iron-based alloy includes, in weight percent, carbon from about 2 to about 3 percent; manganese from about 0.1 to about 0.4 percent; silicon from about 0.3 to about 0.8 percent; chromium from about 11.5 to about 14.5 percent; nickel from about 0.05 to about 0.6 percent; vanadium from about 0.8 to about 2.2 percent; molybdenum from about 4 to about 7 percent; tungsten from about 3 to about 5 percent; niobium from about 1 to about 3 percent; cobalt from about 3 to about 5 percent; boron from zero to about 0.2 percent; and the balance containing iron and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines.

摘要翻译： 铁基合金以重量百分比计包含约2％至约3％的碳; 约0.1至约0.4％的锰; 硅约0.3至约0.8％; 约11.5至约14.5％的铬; 镍约0.05至约0.6％; 钒从约0.8至约2.2％; 约4至约7％的钼; 约3％至约5％的钨; 铌约1％至3％; 约3至约5％的钴; 硼从零到约0.2％; 余量含有铁和杂质。 该合金适用于高温应用，例如用于内燃机的阀座插件。

公开(公告)号：US12018343B2

公开(公告)日：2024-06-25

申请号：US18089771

申请日：2022-12-28

申请人： L.E. Jones Company

发明人： Cong Yue Qiao ,  David M Doll

IPC分类号： C22C38/00 ,  C21D6/00 ,  C21D9/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  F01L3/02

CPC分类号： C21D9/0068 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/54 ,  F01L3/02 ,  C21D2211/005 ,  C21D2211/008

摘要： A pre-alloyed powder includes, in weight percent, carbon from about 0.75 to about 2 percent; manganese from about 0.1 to about 1 percent; silicon from about 0.1 to about 1 percent; chromium from about 3 to about 6 percent; nickel up to about 4 percent; vanadium from about 1 to about 3 percent; molybdenum from about 4 to about 7 percent; tungsten from about 4 to about 7 percent; cobalt from about 4 to about 7 percent; boron up to about 0.1 percent; nitrogen from about 0.001 to about 0.15 percent, aluminum from about 0.001 to about 0.6 percent, copper from about 0.1 to about 1 percent, sulfur up to about 0.3 percent, phosphorus up to about 0.3 percent, up to about 5 percent total of tantalum, titanium, hafnium and zirconium; iron from about 65 to about 80 percent; and incidental impurities.