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1. 发明申请

US20090252636A1 POWDERED METAL ALLOY COMPOSITION FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME 有权
标题翻译：用于耐磨和耐温应用的粉末金属合金组合物及其生产方法
公开(公告)号：US20090252636A1
公开(公告)日：2009-10-08
申请号：US12419683
申请日：2009-04-07
申请人： Denis B. Christopherson, JR. , Leslie John Farthing , Todd Schoenwetter , Gilles L'Esperance , Phillipe Beaulieu
发明人： Denis B. Christopherson, JR. , Leslie John Farthing , Todd Schoenwetter , Gilles L'Esperance , Phillipe Beaulieu
IPC分类号： B22F3/12 , C22C37/00 , B22F9/06 , C22C37/06
CPC分类号： B22F9/082 , B22F2998/10 , C22C33/0285 , C22C37/06 , C22C38/22 , C22C38/24 , C22C38/36 , B22F9/04
摘要： A powder metal steel alloy composition for high wear and temperature applications is made by water atomizing a molten steel alloy composition containing C in an amount of at least 3.0 wt %; at least one carbide-forming alloy element selected from the group consisting of: Cr, V, Mo or W; an O content less than about 0.5 wt %, and the balance comprising essentially Fe apart from incidental impurities. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming element(s) to oxidixe during water atomization. The alloy elements are thus not tied up as oxides and are available to rapidly and readily form carbides in a subsequent sintering stage. The carbon, present in excess, is also available for diffusing into one or more other admixed powders that may be added to the prealloyed powder during sintering to control microstructure and properties of the final part.
摘要翻译：用于高耐磨和高温应用的粉末金属钢合金组合物通过水溶雾化含有至少3.0重量％的C的钢水合金组合物来制备; 至少一种选自Cr，V，Mo或W的碳化物形成合金元素; O含量小于约0.5重量％，除了偶然的杂质外，余量基本上包含Fe。高碳含量降低了氧在熔体中的溶解度，从而将氧含量降低至低于这一水平的水平下会使碳化物形成元素氧化的水平。因此，合金元素不会被氧化并且可以在随后的烧结阶段快速且容易地形成碳化物。过量存在的碳还可用于扩散到一种或多种其它混合的粉末中，其可以在烧结期间加入到预合金粉末中以控制最终部件的微观结构和性能。

2. 发明授权

US09546412B2 Powdered metal alloy composition for wear and temperature resistance applications and method of producing same 有权
标题翻译：用于耐磨和耐温应用的粉末金属合金组合物及其制造方法
公开(公告)号：US09546412B2
公开(公告)日：2017-01-17
申请号：US12419683
申请日：2009-04-07
申请人： Denis B. Christopherson, Jr. , Leslie John Farthing , Todd Schoenwetter , Gilles L'Esperance , Philippe Beaulieu
发明人： Denis B. Christopherson, Jr. , Leslie John Farthing , Todd Schoenwetter , Gilles L'Esperance , Philippe Beaulieu
IPC分类号： C22C37/06 , C22C33/02 , B22F9/08
CPC分类号： B22F9/082 , B22F2998/10 , C22C33/0285 , C22C37/06 , C22C38/22 , C22C38/24 , C22C38/36 , B22F9/04
摘要： A powder metal steel alloy composition for high wear and temperature applications is made by water atomizing a molten steel alloy composition containing C in an amount of at least 3.0 wt %; at least one carbide-forming alloy element selected from the group consisting of: Cr, V, Mo or W; an O content less than about 0.5 wt %, and the balance comprising essentially Fe apart from incidental impurities. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming element(s) to oxidixe during water atomization. The alloy elements are thus not tied up as oxides and are available to rapidly and readily form carbides in a subsequent sintering stage. The carbon, present in excess, is also available for diffusing into one or more other admixed powders that may be added to the prealloyed powder during sintering to control microstructure and properties of the final part.
摘要翻译：用于高耐磨和高温应用的粉末金属钢合金组合物通过水溶雾化含有至少3.0重量％的C的钢水合金组合物来制备; 至少一种选自Cr，V，Mo或W的碳化物形成合金元素; O含量小于约0.5重量％，除了偶然的杂质外，余量基本上包含Fe。高碳含量降低了氧在熔体中的溶解度，从而将氧含量降低至低于这一水平的水平下会使碳化物形成元素氧化的水平。因此，合金元素不会被氧化并且可以在随后的烧结阶段快速且容易地形成碳化物。过量存在的碳还可用于扩散到一种或多种其它混合的粉末中，其可以在烧结期间添加到预合金粉末中以控制最终部件的微结构和性质。

3. 发明申请

US20130028780A1 IRON-BASED SINTERED POWDER METAL FOR WEAR RESISTANT APPLICATIONS 有权
标题翻译：基于铁的烧结粉末金属耐磨应用
公开(公告)号：US20130028780A1
公开(公告)日：2013-01-31
申请号：US13566432
申请日：2012-08-03
申请人： Denis Boyd Christopherson, JR. , Leslie John Farthing , Jeremy Raymond Koth
发明人： Denis Boyd Christopherson, JR. , Leslie John Farthing , Jeremy Raymond Koth
IPC分类号： B22F3/10 , B22F1/00
CPC分类号： B22F3/10 , B22F1/0003 , B22F1/0059 , B22F3/12 , C22C33/0207 , C22C33/0221 , C22C33/0264 , C22C38/12 , C22C38/16 , F01L3/02
摘要： A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
摘要翻译：粉末金属材料包括预合金铁基粉末，其包含以预合金铁基粉末的0.25至1.50重量％的量存在的碳。石墨以粉末金属材料的0.25至1.50重量％的量混合。混合石墨包括比混合石墨重量大于90.0重量％的颗粒比200目更细。二硫化钼的混合量为粉末金属材料的0.1〜4.0重量％，铜以粉末金属材料的1.0〜5.0重量％的量混合，该材料不含磷。然后粉末金属材料在1030至1150℃的温度下压实和烧结。起始粉末金属材料的至少50％的混合石墨在烧结后保持为游离石墨。

4. 发明申请

US20110091344A1 IRON-BASED SINTERED POWDER METAL FOR WEAR RESISTANT APPLICATIONS 有权
标题翻译：基于铁的烧结粉末金属，用于耐磨应用
公开(公告)号：US20110091344A1
公开(公告)日：2011-04-21
申请号：US12579772
申请日：2009-10-15
申请人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
发明人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
IPC分类号： B22F3/12 , B22F1/00 , B22F3/10
CPC分类号： B22F3/10 , B22F1/0003 , B22F1/0059 , B22F3/12 , C22C33/0207 , C22C33/0221 , C22C33/0264 , C22C38/12 , C22C38/16 , F01L3/02
摘要： A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
摘要翻译：粉末金属材料包括预合金铁基粉末，其包含以预合金铁基粉末的0.25至1.50重量％的量存在的碳。石墨以粉末金属材料的0.25至1.50重量％的量混合。混合石墨包括比混合石墨重量大于90.0重量％的颗粒比200目更细。二硫化钼的混合量为粉末金属材料的0.1〜4.0重量％，铜以粉末金属材料的1.0〜5.0重量％的量混合，该材料不含磷。然后粉末金属材料在1030至1150℃的温度下压实和烧结。起始粉末金属材料的至少50％的混合石墨在烧结后保持为游离石墨。

5. 发明授权

US08277533B2 Powder metallurgy composition 有权
标题翻译：粉末冶金组成
公开(公告)号：US08277533B2
公开(公告)日：2012-10-02
申请号：US12377094
申请日：2007-08-09
申请人： Leslie John Farthing , Paritosh Maulik
发明人： Leslie John Farthing , Paritosh Maulik
IPC分类号： B22F1/00 , B22F3/26 , B22F5/00
CPC分类号： C22C33/0228 , C22C33/0242 , C22C33/0285 , C22C33/0292 , C22C38/44 , C22C38/52 , Y10T428/12063
摘要： A most preferred composition for the mixture, prior to sintering into an article (ideally a valve seat insert), is as follows: 35% hard phase, 65% matrix (excepting incidental impurities), the hard phase component being 2.2% C, 29.1% Cr, 4.9% Co, 5.3% Ni, 20.2% W with the balance being Fe and allowing less than 2% for one or more machinability aids and solid lubricants, and the matrix component being one of a high chrome steel powder (e.g. 18% Cr, 1% Ni, 2.5% Mo, balance Fe), a low alloy steel powder (3% Cu, 1% C, balance Fe; 3% Cr, 0.5% Mo, 1% C, balance Fe; 4% Ni, 1.5% Cu, 0.5% Mo, 1% C, balance Fe; 4% Ni, 2% Cu, 1.4% Mo, 1% C, balance Fe), or a tool steel powder (5% Mo, 6% W, 4% Cr, 2% V, 1% C, balance Fe), or a low-alloy steel powder as above but which issued in conjunction with a copper infiltration process during sintering.
摘要翻译：在烧结成物品（理想情况下为阀座插入物）之前，混合物最优选的组合物如下：35％硬相，65％基质（偶然杂质除外），硬相成分为2.2％C，29.1 ％Cr，4.9％Co，5.3％Ni，20.2％W，余量为Fe，对于一种或多种机械加工助剂和固体润滑剂允许小于2％，基质组分为高铬钢粉末（如18 低合金钢粉末（3％Cu，1％C，余量Fe; 3％Cr，0.5％Mo，1％C，余量Fe; 4％Ni ，1.5％Cu，0.5％Mo，1％C，余量Fe; 4％Ni，2％Cu，1.4％Mo，1％C，余量Fe）或工具钢粉末（5％Mo，6％ 4％Cr，2％V，1％C，余量Fe），或如上所述的低合金钢粉末，但与烧结期间的铜浸渗工艺相结合。

6. 发明申请

US20100190025A1 POWDER METALLURGY COMPOSITION 有权
标题翻译：粉末冶金组合物
公开(公告)号：US20100190025A1
公开(公告)日：2010-07-29
申请号：US12377094
申请日：2007-08-09
申请人： Leslie John Farthing , Paritosh Maulik
发明人： Leslie John Farthing , Paritosh Maulik
IPC分类号： B32B15/02 , B22F1/00
CPC分类号： C22C33/0228 , C22C33/0242 , C22C33/0285 , C22C33/0292 , C22C38/44 , C22C38/52 , Y10T428/12063
摘要： A most preferred composition for the mixture, prior to sintering into an article (ideally a valve seat insert), is as follows: 35% hard phase, 65% matrix (excepting incidental impurities), the hard phase component being 2.2% C, 29.1% Cr, 4.9% Co, 5.3% Ni, 20.2% W with the balance being Fe and allowing less than 2% for one or more machinability aids and solid lubricants, and the matrix component being one of a high chrome steel powder (e.g. 18% Cr, 1% Ni, 2.5% Mo, balance Fe), a low alloy steel powder (3% Cu, 1% C, balance Fe; 3% Cr, 0.5% Mo, 1% C, balance Fe; 4% Ni, 1.5% Cu, 0.5% Mo, 1% C, balance Fe; 4% Ni, 2% Cu, 1.4% Mo, 1% C, balance Fe), or a tool steel powder (5% Mo, 6% W, 4% Cr, 2% V, 1% C, balance Fe), or a low-alloy steel powder as above but which issued in conjunction with a copper infiltration process during sintering.
摘要翻译：在烧结成物品（理想情况下为阀座插入物）之前，混合物最优选的组合物如下：35％硬相，65％基质（偶然杂质除外），硬相成分为2.2％C，29.1 ％Cr，4.9％Co，5.3％Ni，20.2％W，余量为Fe，对于一种或多种机械加工助剂和固体润滑剂允许小于2％，基质组分为高铬钢粉末（如18 低合金钢粉末（3％Cu，1％C，余量Fe; 3％Cr，0.5％Mo，1％C，余量Fe; 4％Ni ，1.5％Cu，0.5％Mo，1％C，余量Fe; 4％Ni，2％Cu，1.4％Mo，1％C，余量Fe）或工具钢粉末（5％Mo，6％ 4％Cr，2％V，1％C，余量Fe），或如上所述的低合金钢粉末，但与烧结期间的铜浸渗工艺相结合。

7. 发明授权

US5784681A Method of making a sintered article 失效
标题翻译：制造烧结制品的方法
公开(公告)号：US5784681A
公开(公告)日：1998-07-21
申请号：US716248
申请日：1996-09-13
申请人： Charles Grant Purnell , Leslie John Farthing , David Holme
发明人： Charles Grant Purnell , Leslie John Farthing , David Holme
IPC分类号： F01L3/02 , B22F3/10 , B22F3/24 , C22C33/02 , C22C38/00 , C22C38/36
CPC分类号： C22C33/0285 , B22F2998/00 , B22F2999/00 , Y10S75/95
摘要： A method of making a sintered article is disclosed, the method comprising the steps of mixing a prealloyed ferrous powder having a composition in the following ranges in weight %: carbon 0.7-2.7/chromium 3-6/cobalt 5-10/vanadium 0.5-3/molybdenum 6-11/silicon 0.3-2/ others total 2 max/balance iron and optionally up to 3 wt % tungsten, with an addition of carbon powder of at least 0.1 wt %, compacting said powder mixture by uniaxial pressing to form a green compact of near net shape, sintering said green compact in a continuous gas atmosphere sintering furnace at a temperature in the range from 1130.degree. C. to 1250.degree. C. such that the final density of said sintered material is greater than 95% of the theoretical density as a result of the sintering operation alone.
摘要翻译： PCT No.PCT / GB95 / 00571 Sec。 371日期1996年9月13日 102（e）日期1996年9月13日PCT 1995年3月16日PCT公布。第WO95 / 26421号公报日期1995年10月5日公开了一种制造烧结制品的方法，该方法包括以下步骤混合具有以下范围的组成的预合金铁粉：重量％：碳0.7-2.7 /铬3-6 /钴5- 10 /钒0.5-3 /钼6-11 /硅0.3-2 /其他总计2最大/平衡铁和任选至多3重量％的钨，加入至少0.1重量％的碳粉末，压制所述粉末混合物通过单轴压制形成近净形状的压坯，在连续气氛烧结炉中在1130℃至1250℃的温度下烧结所述生坯，使得所述烧结材料的最终密度为作为单独的烧结操作的结果，大于理论密度的95％。

8. 发明授权

US08801828B2 Iron-based sintered powder metal for wear resistant applications 有权
标题翻译：用于耐磨应用的铁基烧结粉末金属
公开(公告)号：US08801828B2
公开(公告)日：2014-08-12
申请号：US13566432
申请日：2012-08-03
申请人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
发明人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
IPC分类号： B22F1/00 , B22F9/00 , C22C33/02
CPC分类号： B22F3/10 , B22F1/0003 , B22F1/0059 , B22F3/12 , C22C33/0207 , C22C33/0221 , C22C33/0264 , C22C38/12 , C22C38/16 , F01L3/02
摘要： A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
摘要翻译：粉末金属材料包括预合金铁基粉末，其包含以预合金铁基粉末的0.25至1.50重量％的量存在的碳。石墨以粉末金属材料的0.25至1.50重量％的量混合。混合石墨包括比混合石墨重量大于90.0重量％的颗粒比200目更细。二硫化钼的混合量为粉末金属材料的0.1〜4.0重量％，铜以粉末金属材料的1.0〜5.0重量％的量混合，该材料不含磷。然后粉末金属材料在1030至1150℃的温度下压实和烧结。起始粉末金属材料的至少50％的混合石墨在烧结后保持为游离石墨。

9. 发明授权

US08257462B2 Iron-based sintered powder metal for wear resistant applications 有权
标题翻译：用于耐磨应用的铁基烧结粉末金属
公开(公告)号：US08257462B2
公开(公告)日：2012-09-04
申请号：US12579772
申请日：2009-10-15
申请人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
发明人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
IPC分类号： B22F1/00 , B22F9/00 , C22C33/02
CPC分类号： B22F3/10 , B22F1/0003 , B22F1/0059 , B22F3/12 , C22C33/0207 , C22C33/0221 , C22C33/0264 , C22C38/12 , C22C38/16 , F01L3/02
摘要： A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
摘要翻译：粉末金属材料包括预合金铁基粉末，其包含以预合金铁基粉末的0.25至1.50重量％的量存在的碳。石墨以粉末金属材料的0.25至1.50重量％的量混合。混合石墨包括比混合石墨重量大于90.0重量％的颗粒比200目更细。二硫化钼的混合量为粉末金属材料的0.1〜4.0重量％，铜以粉末金属材料的1.0〜5.0重量％的量混合，该材料不含磷。然后粉末金属材料在1030至1150℃的温度下压实和烧结。起始粉末金属材料的至少50％的混合石墨在烧结后保持为游离石墨。

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