公开(公告)号：US06233822B1

公开(公告)日：2001-05-22

申请号：US09217591

申请日：1998-12-22

申请人： Warren D. Grossklaus, Jr. ,  Patricia A. Charles

发明人： Warren D. Grossklaus, Jr. ,  Patricia A. Charles

IPC分类号： B23P1500

CPC分类号： B23P6/007 ,  C23C4/01 ,  C23C10/02 ,  Y10T29/49318 ,  Y10T29/49336 ,  Y10T29/49718 ,  Y10T29/4973

摘要： A method for repairing the shroud surfaces of a gas turbine engine to provide corrosion and oxidation resistance of the shroud segments while also restoring the dimensional integrity of the shroud segments. The method entails removing the oxidation and corrosion products from the shroud segment, removing preexisting coating materials, applying a material compatible with the shroud segment substrate material, machining the surface, applying a corrosion-resistant, oxidation-resistant and rub-compliant material to the shroud segment using a HVOF process, machining the shroud segment to preselected dimensions and applying an aluminide coating for improved oxidation and corrosion resistance of the repaired surfaces.

摘要翻译： 一种用于修复燃气涡轮发动机的护罩表面以提供护罩段的腐蚀和抗氧化性同时还恢复护罩段的尺寸完整性的方法。 该方法需要从护罩部分去除氧化和腐蚀产物，去除预先存在的涂层材料，施加与护罩段基材材料相容的材料，加工表面，将耐腐蚀，抗氧化和摩擦顺序的材料施加到 护罩段使用HVOF工艺，将护罩段加工成预选尺寸并施加铝化物涂层以改善修复表面的抗氧化和耐腐蚀性。

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。

公开(公告)号：US6084196A

公开(公告)日：2000-07-04

申请号：US30022

申请日：1998-02-25

申请人： Gilbert E. Flowers ,  Earl L. Kelly, Jr. ,  Warren D. Grossklaus, Jr. ,  James D. Barber ,  Gray W. Grubbs ,  Levi Williams

发明人： Gilbert E. Flowers ,  Earl L. Kelly, Jr. ,  Warren D. Grossklaus, Jr. ,  James D. Barber ,  Gray W. Grubbs ,  Levi Williams

IPC分类号： B23K10/02 ,  B23K9/00

CPC分类号： B23K9/167 ,  B23K10/027 ,  B23K9/32 ,  B23P6/007 ,  F01D5/005 ,  B23K2201/001

摘要： A nickel-base superalloy article which is susceptible to strain-age cracking and has a directionally oriented, single crystal, or equiaxed grain structure is repaired with minimal welding heat input into the article. The article is first heated to a welding temperature of from about 1650.degree. F. to about 2000.degree. F. in an inert atmosphere. A damaged area of the article is weld repaired using a plasma-transferred arc welder which vaporizes a filler metal in a plasma arc and deposited the vaporized metal onto the article to form a weld overlay. Minimal additional heat is added to the article during welding, as the weldment metal is vaporized remotely from the article.

摘要翻译： 容易受应变时效破裂并具有定向取向，单晶或等轴晶粒结构的镍基超耐热合金制品以最小的焊接热量输入到制品中进行修复。 首先在惰性气氛中将制品加热至约1650°F至约2000°F的焊接温度。 使用等离子体转移电弧焊机对制品的损坏区域进行焊接修补，其将等离子体电弧中的填充金属蒸发并将蒸发的金属沉积到制品上以形成焊接覆盖层。 在焊接期间，最少额外的热量被加入到制品中，因为焊件金属被远离制品蒸发。

公开(公告)号：US5897966A

公开(公告)日：1999-04-27

申请号：US606903

申请日：1996-02-26

申请人： Warren D. Grossklaus, Jr. ,  Richard R. Worthing, Jr.

发明人： Warren D. Grossklaus, Jr. ,  Richard R. Worthing, Jr.

IPC分类号： C23C10/48 ,  C23C10/58 ,  B32B15/10 ,  C22F1/09

CPC分类号： C23C10/58 ,  Y10T428/1275 ,  Y10T428/12861 ,  Y10T428/12875 ,  Y10T428/12944

摘要： An environmental resistant spot type coating is provided on a selected, discrete surface area of a high temperature operating article, by applying to the area a layer of at least one of the elements selected from Pt, Rh and Pd, and preferably Pt, to a thickness of about 0.0002" to less than 0.0006" and an average distribution of at least about 0.07 grams per square inch. The layer is heated at about 1800-2050.degree. F. for about 1/2-4 hours to diffuse the element with the surface area. Then the layer is aluminided to provide an average total coating thickness of about 0.001-0.005". The article provided includes an environmental resistant additive coating diffused with the selected discrete area. The coating comprises an outer portion of at least about 17 wt. % of the selected element, and an aluminide of the surface area or substrate. In one form, the outer portion is a two phase outer portion: a first phase of an aluminide of the selected element at a content of at least about 40 wt. % interspersed with a second phase comprising an aluminide in which Al is at least about 20 wt. %. Between the outer portion and the surface area is an inner portion which is a diffusion zone comprising diffused selected element along with an aluminide and/or elements diffused from the surface area.

摘要翻译： 通过将选自Pt，Rh和Pd中的至少一种元素，优选Pt，至少一种Pt的层施加到该区域，在高温操作制品的选定的离散表面区域上提供耐环境斑点型涂层 约0.0002“至小于0.0006”的厚度，平均分布为至少约0.07克/平方英寸。 将层在约1800-2050°F加热约+ E，加热1/2 + EE -4小时以使元件与表面积扩散。 然后将该层铝化，以提供约0.001-0.005“的平均总涂层厚度。 所提供的制品包括与所选离散区域扩散的耐环境添加剂涂层。 该涂层包含至少约17wt。 ％的选定元素，以及表面积或底物的铝化物。 在一种形式中，外部是两相外部部分：所选元素的铝化物的第一相含量至少为约40wt。 ％散布在第二相中，第二相包含铝，其中Al为至少约20wt。 ％。 在外部部分和表面区域之间是内部部分，其是扩散区域，其包括扩散选择的元素以及从表面区域扩散的铝化物和/或元素。

公开(公告)号：US06468040B1

公开(公告)日：2002-10-22

申请号：US09624806

申请日：2000-07-24

申请人： Richard J. Grylls ,  Joseph D. Rigney ,  Warren D. Grossklaus, Jr. ,  Melvin R. Jackson

发明人： Richard J. Grylls ,  Joseph D. Rigney ,  Warren D. Grossklaus, Jr. ,  Melvin R. Jackson

IPC分类号： F01D528

CPC分类号： F01D5/28 ,  F01D5/20 ,  F05D2230/234 ,  F05D2230/235 ,  Y10T29/4932

摘要： A cast turbine airfoil to which a squealer tip is added. The turbine airfoil is cast slightly undersize. The squealer tip is comprised of an alloy that is different from the cast alloy of the airfoil, the oxidation resistance and strength of the squealer tip alloy being greater than the strength of the turbine airfoil alloy. The cast turbine alloy having the added squealer tip can utilize a material in the squealer tip that is more difficult to cast than the cast alloy material, yet is more suited for severe environmental conditions and temperature extremes.

摘要翻译： 一个铸造涡轮机翼型，一个尖叫尖头被添加到其中。 涡轮机翼型铸件稍微过小。 尖叫尖端由与翼型的铸造合金不同的合金组成，其尖端合金的抗氧化性和强度大于涡轮机翼型合金的强度。 具有添加的尖叫尖端的铸造涡轮合金可以利用在铸造合金材料中比铸造合金材料更难铸造的尖叫尖端材料，而且更适用于恶劣的环境条件和极端温度。

公开(公告)号：US5197191A

公开(公告)日：1993-03-30

申请号：US663506

申请日：1991-03-04

申请人： Dewey D. Dunkman ,  Warren D. Grossklaus, Jr. ,  Petra Bracko

发明人： Dewey D. Dunkman ,  Warren D. Grossklaus, Jr. ,  Petra Bracko

IPC分类号： B23C1/20 ,  B23C3/18 ,  B23P6/00 ,  B23Q35/10 ,  B24B23/00 ,  F01D5/00

CPC分类号： B23P6/002 ,  B23Q35/105 ,  F01D5/005 ,  Y10T29/49318 ,  Y10T29/49748 ,  Y10T409/30644 ,  Y10T409/30672

摘要： The present invention provides a method and apparatus to repair gouged out and damaged leading and trailing edges of gas turbine engine blades, particularly fan blades, by cutting away a curved section including the damaged area and forming a blend radius along the repaired edge. The apparatus includes a unique machine tool guide having an adjustable cutting depth guide and mountable to a hand held machine tool driver, such as 90 degree angle head air motor, that drives a rotary cutter.

公开(公告)号：US6020571A

公开(公告)日：2000-02-01

申请号：US223792

申请日：1998-12-31

申请人： Warren D. Grossklaus, Jr. ,  Richard R. Worthing, Jr. ,  Lawrence J. Roedl ,  John M. Powers ,  Thomas F. Broderick

发明人： Warren D. Grossklaus, Jr. ,  Richard R. Worthing, Jr. ,  Lawrence J. Roedl ,  John M. Powers ,  Thomas F. Broderick

IPC分类号： B23K9/04 ,  B23K10/00 ,  B23K10/02 ,  B23K13/00 ,  B23K37/00 ,  H05H1/42

CPC分类号： B23K9/04 ,  B23K10/02 ,  B23K13/00

摘要： An apparatus and method for welding a superalloy article. The apparatus generally entails an enclosure adapted for containing a superalloy article, a polarity-reversing plasma transferred arc welder apparatus for welding a localized region of the article, an induction coil for heating the localized region, and elements for sensing and controlling the temperature of the localized region. The induction coil is placed in close proximity to the localized region of the article so that the temperature of the localized region is largely determined and quickly altered by the output of the coil. The polarity-reversing plasma transferred arc welding apparatus is operated at very low currents of not more than forty-five amps, so that the welding apparatus has only a secondary heating affect compared to the induction coil.

摘要翻译： 一种用于焊接超合金制品的装置和方法。 该装置通常需要适于容纳超合金制品的外壳，用于焊接制品的局部区域的极性反转等离子体转移电弧焊机装置，用于加热局部区域的感应线圈，以及用于感测和控制制品的温度的元件 本地化区域。 感应线圈被放置成紧邻制品的局部区域，使得局部区域的温度被很大程度上确定并且被线圈的输出快速地改变。 极性反转等离子体转移电弧焊接装置在不超过四十五安培的非常低的电流下操作，使得焊接装置与感应线圈相比仅具有二次加热影响。

公开(公告)号：US5674610A

公开(公告)日：1997-10-07

申请号：US409395

申请日：1995-03-24

申请人： Jon C. Schaeffer ,  Mark A. Rosenzweig ,  Warren D. Grossklaus, Jr. ,  Robert J. Van Cleaf ,  Frederick S. Kaempf

发明人： Jon C. Schaeffer ,  Mark A. Rosenzweig ,  Warren D. Grossklaus, Jr. ,  Robert J. Van Cleaf ,  Frederick S. Kaempf

IPC分类号： C23C10/04 ,  C23C10/30 ,  C09J7/02

CPC分类号： C23C10/30 ,  C23C10/04 ,  Y02T50/67 ,  Y10T428/2804 ,  Y10T428/2848

摘要： Chromium is deposited on a surface using a coating tape having a source layer including a powdered source of chromium, a solid reactant that reacts with solid chromium at elevated temperature to produce a gaseous chromium-containing compound, an inert powder dispersed with the powdered source of chromium, and a binder. Preferably, a porous media layer including a porous media material and a binder is affixed to the source layer. The coating tape is positioned adjacent to the surface of the substrate, with the porous media layer, where present, in contact with the surface. The coating tape and substrate are placed into a container, and the container is heated to elevated temperature in a non-oxidizing atmosphere. The gaseous chromium-containing compound is produced and chromium is deposited from the gaseous chromium-containing compound onto the surface of the substrate.

摘要翻译： 使用具有源层的涂层带将铬沉积在表面上，所述源层包括粉末状的铬源，在升高的温度下与固体铬反应的固体反应物，以产生含气体的化合物，用粉末状的源分散的惰性粉末 铬和粘合剂。 优选地，将包括多孔介质材料和粘合剂的多孔介质层固定到源层。 涂层带位于基底表面附近，多孔介质层在存在时与表面接触。 将涂布带和基材放入容器中，并将容器在非氧化气氛中加热至高温。 制备含气体的化合物，并且将铬从气态含铬化合物沉积到基材的表面上。

公开(公告)号：US6124568A

公开(公告)日：2000-09-26

申请号：US223793

申请日：1998-12-31

申请人： Thomas F. Broderick ,  Richard R. Worthing, Jr. ,  Lawrence J. Roedl ,  John M. Powers ,  Warren D. Grossklaus, Jr.

发明人： Thomas F. Broderick ,  Richard R. Worthing, Jr. ,  Lawrence J. Roedl ,  John M. Powers ,  Warren D. Grossklaus, Jr.

IPC分类号： B23K9/23 ,  B23K9/095 ,  B23K9/235 ,  B23K26/12 ,  B23K26/42 ,  B23K31/00 ,  B23K31/02

CPC分类号： B23K26/034 ,  B23K26/12 ,  B23K26/123 ,  B23K26/127 ,  B23K26/60 ,  B23K31/02 ,  B23K9/235

摘要： A heating apparatus and method for welding a superalloy article. The apparatus and method of this invention provide for pre-weld and post-weld heat treatments to be performed on an article within the same enclosure in which the welding operation is performed. The apparatus accurately controls the temperature of the component to be welded throughout the temperature treatment profiles with the use of means for welding the article, means for heating the article, and means for sensing the article temperature. The apparatus also works in conjunction with a memory storage device that stores appropriate pre-weld and post-weld heat treatment temperature profiles and a welding temperature profile for the article.

摘要翻译： 一种用于焊接超合金制品的加热装置和方法。 本发明的装置和方法提供对在执行焊接操作的相同外壳内的物品上进行预焊和焊后热处理。 该装置通过使用用于焊接物品的装置，用于加热制品的装置和用于感测物品温度的装置，在整个温度处理轮廓中精确地控制待焊接部件的温度。 该装置还与存储适当的预焊接和焊后热处理温度曲线以及用于制品的焊接温度曲线的存储器存储装置一起使用。

公开(公告)号：US06544346B1

公开(公告)日：2003-04-08

申请号：US08886504

申请日：1997-07-01

申请人： Warren D. Grossklaus, Jr. ,  Roger D. Wustman ,  John M. Powers ,  Jeffrey A. Conner ,  Jon C. Schaeffer

发明人： Warren D. Grossklaus, Jr. ,  Roger D. Wustman ,  John M. Powers ,  Jeffrey A. Conner ,  Jon C. Schaeffer

IPC分类号： B08B704

CPC分类号： C23G1/20 ,  B22D29/002 ,  B23P2700/06 ,  C23C10/02 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/325 ,  C23C28/3455

摘要： A method of repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for completely removing a thermal insulating ceramic layer of thermal barrier coating system that includes a metallic bond coat, such as a diffusion aluminide or MCrAlY coating, between the surface of the component and the ceramic layer, while leaving the bond coat substantially undamaged. Furthermore, the method of this invention includes a technique by which ceramic material within cooling holes in the component can be removed without damaging the underlying bond coat. The process steps generally include removing the ceramic layer from the surface of the component by subjecting the ceramic layer to a caustic solution at an elevated temperature and pressure, and then removing ceramic material from the cooling hole by carefully directing a high-velocity fluid stream into the cooling hole. According to this invention, the high-velocity fluid stream is able to overcome the compressive stresses that otherwise anchor the ceramic in the cooling hole, yet does not remove or damage the bond coat underlying the ceramic.

摘要翻译： 在设计用于恶劣热环境中的部件（例如燃气涡轮发动机的涡轮机，燃烧器和增压器部件）上修复热障涂层的方法。 该方法特别适于完全去除在元件表面和陶瓷层之间包括金属粘合涂层（例如扩散铝化物或MCrAlY涂层）的热障涂层系统的绝热陶瓷层，同时留下粘合涂层 基本没有损坏。 此外，本发明的方法包括可以除去组件内的冷却孔内的陶瓷材料而不损坏下面的粘合涂层的技术。 工艺步骤通常包括通过在升高的温度和压力下对陶瓷层进行苛性碱溶液从部件的表面除去陶瓷层，然后通过小心地将高速流体流引导到冷却孔中，从陶瓷材料中除去陶瓷材料 冷却孔。 根据本发明，高速流体流能够克服否则将陶瓷固定在冷却孔中的压缩应力，但是不会去除或损坏陶瓷下面的粘合涂层。