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1. 发明授权

US06428602B1 Method for recovering platinum from platinum-containing coatings on gas turbine engine components 失效
标题翻译：用于从燃气涡轮发动机部件上的含铂涂层中回收铂的方法
公开(公告)号：US06428602B1
公开(公告)日：2002-08-06
申请号：US09495267
申请日：2000-01-31
申请人： Mark A. Rosenzweig , Keith H. Betscher , Christopher J. Cunningham , Howard J. Farr , Leo S. MacDonald
发明人： Mark A. Rosenzweig , Keith H. Betscher , Christopher J. Cunningham , Howard J. Farr , Leo S. MacDonald
IPC分类号： C22B100
CPC分类号： F01D5/288 , C22B11/025 , C22B11/046 , C23F1/44 , F05D2230/90 , F05D2300/143 , Y02P10/214
摘要： A method for recovering Pt from Pt-bearing coating on a gas turbine engine component. The component is contacted with a chemical stripping agent to dissolve away constituents of the coating and produce a Pt-bearing film of acid oxidation products at the surface of the component. The film is removed from the component to produce a Pt-rich residue containing at least about 10% Pt. The Pt-rich residue is collected and refined to recover Pt therefrom.
摘要翻译：用于从燃气涡轮发动机部件上的含Pt涂层中回收Pt的方法。将组分与化学剥离剂接触以溶解涂层的组分，并在组分的表面产生含有Pt的酸性氧化产物膜。从组分中除去膜以产生含有至少约10％Pt的富Pt的残余物。收集富含富Pt的残余物并精制从其中回收Pt。

2. 发明授权

US6099655A Wet chemical process for removing an abrasive alumina seal tooth coating 失效
标题翻译：用于去除磨蚀氧化铝密封齿涂层的湿化学工艺
公开(公告)号：US6099655A
公开(公告)日：2000-08-08
申请号：US888301
申请日：1997-07-08
申请人： Howard J. Farr , Jeffrey A. Bauer , D Sangeeta
发明人： Howard J. Farr , Jeffrey A. Bauer , D Sangeeta
IPC分类号： C23G1/14 , C23G5/02 , C23G5/032 , F01D5/00 , F01D25/00 , B08B3/10
CPC分类号： C23G5/02 , C23G1/14 , C23G5/032 , F01D25/002 , F01D5/005 , Y02T50/67 , Y02T50/671
摘要： A wet chemical process for removing an abrasive oxide coating from the surface of a rotating turbine engine component, such as a tooth that forms a rotating air seal with a complementary sealing member. The process generally entails subjecting the coating to a caustic solution at an elevated pressure. The caustic solution is preferably a mixture of water and a base, such as sodium or potassium hydroxide, with the addition of an organic compound being a preferred constituent in a sufficient amount as a solvent media for the caustic solution. A suitable caustic solution contains the base and water at a ratio of about one to one (1:1). If present, the organic compound may constitute about one to about ninety-eight weight percent of the solution. The process is preferably carried out in an autoclave charged with the caustic solution. Under an elevated pressure and preferably an elevated temperature, the caustic solution is capable of completely removing an alumina seal tooth coating without damaging an underlying bond coat or the tooth substrate.
摘要翻译：一种用于从旋转的涡轮发动机部件（例如与补充密封件形成旋转空气密封件的齿）的表面去除磨蚀性氧化物涂层的湿法化学方法。该方法通常需要在升高的压力下使涂层经受腐蚀性溶液。苛性碱溶液优选为水和碱的混合物，例如氢氧化钠或氢氧化钾，加入作为苛性碱溶液的溶剂介质的足量的有机化合物作为优选组分。合适的苛性碱溶液含有约1比1（1：1）的碱和水。如果存在，有机化合物可占该溶液的约一至约百分之九十八。该方法优选在装有苛性碱溶液的高压釜中进行。在升高的压力下，优选升高的温度下，苛性碱溶液能够完全除去氧化铝密封齿涂层，而不会损坏下面的粘合涂层或牙基质。

3. 发明授权

US5952110A Abrasive ceramic matrix turbine blade tip and method for forming 失效
标题翻译：研磨陶瓷基体涡轮叶片尖端和成型方法
公开(公告)号：US5952110A
公开(公告)日：1999-09-14
申请号：US772965
申请日：1996-12-24
申请人： Jerry D. Schell , Howard J. Farr
发明人： Jerry D. Schell , Howard J. Farr
IPC分类号： C25D3/56 , C25D15/02 , F01D5/20 , B21D39/00
CPC分类号： F01D11/12 , C25D15/02 , C25D3/562 , Y10S428/935 , Y10S428/937 , Y10T428/12535 , Y10T428/12542 , Y10T428/12549 , Y10T428/12611 , Y10T428/12618 , Y10T428/12931 , Y10T428/12944
摘要： An abrasive coating suitable for forming an abrasive blade tip of a gas turbine engine. The coating is characterized as being capable of abrading a ceramic shroud at elevated temperatures during the in-service operation of the engine, and being resistant to oxidation and hot corrosion within the engine environment. The abrasive coating includes an MCrAl alloy layer, a ceramic layer overlying the alloy layer so as to form an outer surface of the abrasive coating, and abrasive particles dispersed between the alloy layer and the ceramic layer so that at least some of the abrasive particles are partially embedded in the alloy layer and also partially embedded in the ceramic layer. In addition, at least some of the abrasive particles project above the outer surface of the abrasive coating formed by the ceramic layer.
摘要翻译：适用于形成燃气涡轮发动机研磨叶片尖端的磨料涂层。该涂层的特征在于能够在发动机的使用中操作期间在升高的温度下研磨陶瓷护罩，并且能够抵抗发动机环境内的氧化和热腐蚀。研磨涂层包括MCrAl合金层，覆盖合金层以形成磨料涂层的外表面的陶瓷层和分散在合金层和陶瓷层之间的磨料颗粒，使得至少一些磨料颗粒是部分地嵌入在合金层中并且部分地嵌入在陶瓷层中。此外，至少一些研磨颗粒突出在由陶瓷层形成的磨料涂层的外表面上方。

4. 发明授权

US5944909A Method for chemically stripping a cobalt-base substrate 失效
标题翻译：化学剥离钴基底材的方法
公开(公告)号：US5944909A
公开(公告)日：1999-08-31
申请号：US17161
申请日：1998-02-02
申请人： Jim D. Reeves , Howard J. Farr , Warren D. Grossklaus, Jr. , Jerald M. Kauffman , Randall L. Hobbs , Patricia A. Charles , Eric C. Hemsath , Scott A. Welsh
发明人： Jim D. Reeves , Howard J. Farr , Warren D. Grossklaus, Jr. , Jerald M. Kauffman , Randall L. Hobbs , Patricia A. Charles , Eric C. Hemsath , Scott A. Welsh
IPC分类号： C09K13/04 , C23F1/44 , B08B3/08 , C23G1/02
CPC分类号： C23F1/44 , C09K13/04
摘要： A method of removing metallic compositions, such as abradable rub coatings, environmental coatings, bond coats and braze alloys, from the surface of a cobalt-base substrate, such as turbine shrouds and vanes of gas turbine engines. The method is particularly suited for the removal of nickel-base braze alloys and aluminum-containing coatings, the latter of which includes abradable MCrAlY coatings and environmentally-protective diffusion aluminide coatings. The process generally entails contacting such metallic compositions with an aqueous solution containing hydrochloric acid and nitric acid and at a solution temperature of about 130.degree. F. to about 180.degree. F. The solution completely removes nickel-base alloys and aluminum-containing compositions from a cobalt-base substrate without removal or damage to the underlying substrate.
摘要翻译：从诸如燃气涡轮发动机的涡轮罩和叶片的钴基基板的表面去除金属组合物的方法，例如可磨擦的摩擦涂层，环境涂层，粘合涂层和钎焊合金。该方法特别适用于去除镍基钎焊合金和含铝涂层，后者包括耐磨的MCrAlY涂层和环保型扩散铝化物涂层。该方法通常需要使这种金属组合物与含有盐酸和硝酸的水溶液和约130°F至约180°F的溶液温度接触。该溶液从镍基合金和含铝组合物中完全去除钴基底物，而不去除或损坏底层基底。

5. 发明授权

US5584663A Environmentally-resistant turbine blade tip 失效
标题翻译：耐环境涡轮叶片尖端
公开(公告)号：US5584663A
公开(公告)日：1996-12-17
申请号：US551689
申请日：1995-11-01
申请人： Jerry D. Schell , Howard J. Farr , Thomas J. Kelley , Paul J. E. Monson , Stephen J. Ferrigno
发明人： Jerry D. Schell , Howard J. Farr , Thomas J. Kelley , Paul J. E. Monson , Stephen J. Ferrigno
IPC分类号： C22C1/04 , C22C19/05 , C23C24/10 , F01D5/20 , F01D5/28
CPC分类号： B23K26/0853 , C22C1/0433 , C22C19/058 , C23C24/103 , F01D5/20 , Y10T428/12944
摘要： A family of environmentally-resistant alloys is provided which are suitable for forming a blade tip for a turbine blade of a gas turbine engine. The blade tip alloys preferably have a chemical composition of, in weight percent, about 14 to about 18 percent chromium, about 6.45 to about 6.95 percent aluminum, about 9.75 to about 11.45 percent cobalt, about 5.95 to about 6.55 percent tantalum, about 1.85 to about 2.35 percent rhenium, about 0.05 to about 1.75 percent hafnium, about 0.006 to about 0.03 percent zirconium, about 0.02 to about 0.11 percent carbon, up to about 1.1 percent silicon, up to about percent 0.01 percent boron, with the balance being nickel and typical impurities.
摘要翻译：提供了一系列耐环境合金，其适用于形成用于燃气涡轮发动机的涡轮叶片的叶片尖端。叶片尖端合金优选地具有重量百分比为约14至约18％的铬，约6.45至约6.95％的铝，约9.75至约11.45％的钴，约5.95至约6.55％的钽，约1.85至约2.35％的铼，约0.05至约1.75％的铪，约0.006至约0.03％的锆，约0.02至约0.11％的碳，至多约1.1％的硅，至多约0.01％的硼，余量为镍和典型杂质。

6. 发明授权

US4480681A Refractory mould body and method of casting using the mould body 失效
$Refractory mould body and method of casting using the mould body$
标题翻译：耐火模具体及铸模使用方法
公开(公告)号：US4480681A
公开(公告)日：1984-11-06
申请号：US412491
申请日：1982-08-30
申请人： Kevin Alexander , Howard J. Farr
发明人： Kevin Alexander , Howard J. Farr
IPC分类号： B22C9/10 , B22C1/00 , B22D29/00
CPC分类号： B22C9/105
摘要： A refractory mould core for producing metallic castings of complicated internal shape formed from a water-soluble salt having the following particle size distribution:100% by weight of the particles have a size less than 750 .mu.m;90% by weight of the particles have a size of 8-600 .mu.m;80% by weight of the particles have a size of 5.5-500 .mu.m;70% by weight of the particles have a size of 4-400 .mu.m;60% by weight of the particles have a size of 2.8-350 .mu.m;50% by weight of the particles have a size of 2.0-280 .mu.m;40% by weight of the particles have a size of 1.6-220 .mu.m;30% by weight of the particles have a size of 1.0-180 .mu.m;20% by weight of the particles have a size of 0.3-160 .mu.m;10% by weight of the particles have a size of 0.1-125 .mu.m.
摘要翻译：一种用于生产由具有以下粒度分布的水溶性盐形成的复杂内部形状的金属铸件的耐火模芯：100重量％的颗粒具有小于750μm的尺寸; 颗粒重量的90％为8〜600μm; 80重量％的颗粒尺寸为5.5-500μm; 70重量％的颗粒的尺寸为4-400μm; 60重量％的颗粒尺寸为2.8-350μm; 50重量％的颗粒的大小为2.0-280μm; 40重量％的颗粒的尺寸为1.6-220μm; 30重量％的颗粒的大小为1.0-180μm; 20重量％的颗粒尺寸为0.3-160μm; 10重量％的颗粒的尺寸为0.1-125μm。

7. 发明授权

US06328810B1 Method for locally removing oxidation and corrosion product from the surface of turbine engine components 失效
标题翻译：从涡轮发动机部件的表面局部去除氧化和腐蚀产物的方法
公开(公告)号：US06328810B1
公开(公告)日：2001-12-11
申请号：US09287627
申请日：1999-04-07
申请人： Jeffrey A. Conner , Howard J. Farr
发明人： Jeffrey A. Conner , Howard J. Farr
IPC分类号： B08B700
CPC分类号： C23G5/00 , F01D25/002
摘要： A method for removing products of hot corrosion and oxidation from selective portions of surfaces of a gas turbine engine, such as coatings and substrates, following exposure of the surfaces to hot oxidative gases of the turbine exhaust. The method involves a high temperature chemical reaction and has no detrimental effect on adjacent coatings and substrates that have not been attacked by the hot exhaust gases.
摘要翻译：在将表面暴露于涡轮机废气的热氧化气体之后，从燃气轮机发动机的表面的选择性部分（例如涂层和基底）上去除热腐蚀和氧化产物的方法。该方法涉及高温化学反应，对没有被热废气侵蚀的相邻涂层和基材没有不利影响。

8. 发明授权

US4629708A Moulding 失效
标题翻译：成型
公开(公告)号：US4629708A
公开(公告)日：1986-12-16
申请号：US611492
申请日：1984-05-17
申请人： Kevin Alexander , Howard J. Farr
发明人： Kevin Alexander , Howard J. Farr
IPC分类号： B22C9/10 , C04B35/02
CPC分类号： B22C9/105
摘要： A core or insert primarily for the production of metal and alloy castings, e.g. of complicated internal shape, is a refractory body comprising essentially a water-soluble salt and a calcium silicate, the calcium silicate being present in amount of at least 45%, by weight, based on the total weight of calcium silicate and water-soluble salt, and the water-soluble salt and the calcium silicate having a particular particle size distribution. The calcium silicate is preferably a wollastonite.The core may be removed from the cast or moulded article by dissolution in water.
摘要翻译：主要用于生产金属和合金铸件的芯或插入件，例如复杂的内部形状是基本上包含水溶性盐和硅酸钙的耐火材料体，硅酸钙的含量为硅酸钙和水溶性盐的总重量的至少45重量％，以及具有特定粒度分布的水溶性盐和硅酸钙。硅酸钙优选为硅灰石。芯可以通过溶解在水中从铸造或模制品中除去。

9. 发明授权

US06945262B2 Analysis equipment for determining physical properties of an organic solution 失效
标题翻译：用于确定有机溶液物理性能的分析设备
公开(公告)号：US06945262B2
公开(公告)日：2005-09-20
申请号：US10050660
申请日：2002-01-16
申请人： Howard J. Farr , Keith H. Betscher , Richard R. Worthing, Jr. , D Sangeeta , Himanshu B. Vakil , Curtis A. Johnson , Thomas J. Cartier, Jr. , Edward B. Stokes , Heinz Jaster , Alexander S. Allen
发明人： Howard J. Farr , Keith H. Betscher , Richard R. Worthing, Jr. , D Sangeeta , Himanshu B. Vakil , Curtis A. Johnson , Thomas J. Cartier, Jr. , Edward B. Stokes , Heinz Jaster , Alexander S. Allen
IPC分类号： B08B3/08 , B08B3/10 , B08B7/00 , C23G1/14 , C23G1/36 , C23G3/00 , C23G5/02 , C23G5/04
CPC分类号： B08B7/0021 , C23G3/00 , C23G5/02 , C23G5/04 , F01D5/005 , F01D5/288
摘要： Analysis equipment for determining a concentration of an organic component and a caustic component of a reusable organic caustic solution that has been utilized for removing a ceramic coating from a metallic component at elevated temperatures and pressures, such as in an autoclave. Sensors are positioned between a filter for removing particles of the ceramic coating dispersed in the reusable organic caustic solution from the reusable organic caustic solution and a storage tank storing the reusable organic caustic solution after removal from the autoclave. The sensors measure physical properties of the reusable organic caustic solution after removal of the particles from the reusable organic caustic solution, such as electrical conductivity, opacity, refractive index, density, fluidity and the speed of sound in the solution.
摘要翻译：用于确定已被用于在高温和高压下如高压釜中从金属组分除去陶瓷涂层的可重复使用的有机苛性碱溶液的有机组分和苛性碱组分的浓度的分析设备。传感器位于用于从可再利用的有机苛性碱溶液中分散在可重复使用的有机苛性碱溶液中的陶瓷涂层的颗粒的过滤器和从高压釜中取出之后储存可重复使用的有机苛性碱溶液的储存器。这些传感器在从可重复使用的有机苛性碱溶液中除去颗粒后，测量可重复使用的有机苛性碱溶液的物理性质，如电导率，不透明度，折射率，密度，流动性和溶液中的声速。

10. 发明授权

US5622638A Method for forming an environmentally resistant blade tip 失效
标题翻译：用于形成耐环境的叶片尖端的方法
公开(公告)号：US5622638A
公开(公告)日：1997-04-22
申请号：US647523
申请日：1996-05-15
申请人： Jerry D. Schell , Howard J. Farr , Thomas J. Kelly , Paul J. E. Monson , Stephen J. Ferrigno
发明人： Jerry D. Schell , Howard J. Farr , Thomas J. Kelly , Paul J. E. Monson , Stephen J. Ferrigno
IPC分类号： C22C1/04 , C22C19/05 , C23C24/10 , F01D5/20 , B23K26/00 , C23C4/00 , F01D11/08
CPC分类号： B23K26/0853 , C22C1/0433 , C22C19/058 , C23C24/103 , F01D5/20 , Y10T428/12944
摘要： A method for forming a blade tip on a turbine blade of a gas turbine engine includes providing a powder alloy from a family of environmentally-resistant powder alloys and forming the blade tip by melting and fusing the powder alloy to the turbine blade. The blade tip alloys preferably have a chemical composition of, in weight percent, about 14 to about 18 percent chromium, about 6.45 to about 6.95 percent aluminum, about 9.75 to about 11.45 percent cobalt, about 5.95 to about 6.55 percent tantalum, about 1.85 to about 2.35 percent rhenium, about 0.05 to about 1.75 percent hafnium, about 0,006 to about 0.03 percent zirconium, about 0.02 to about 0.11 percent carbon, up to about 1.1 percent silicon, up to about percent 0.01 percent boron, with the balance being nickel and typical impurities.
摘要翻译：在燃气轮机发动机的涡轮叶片上形成叶片尖端的方法包括从一系列耐环境的粉末合金中提供粉末合金，并通过将粉末合金熔化并熔合到涡轮叶片上形成叶片尖端。叶片尖端合金优选具有重量百分比为约14至约18％的铬，约6.45至约6.95％的铝，约9.75至约11.45％的钴，约5.95至约6.55％的钽，约1.85至约2.35％的铼，约0.05至约1.75％的铪，约0,006至约0.03％的锆，约0.02至约0.11％的碳，至多约1.1％的硅，至多约0.01％的硼，余量为镍和典型杂质。

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