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1. 发明授权

US4610698A Abrasive surface coating process for superalloys 失效
标题翻译：超级合金的磨料表面涂层工艺
公开(公告)号：US4610698A
公开(公告)日：1986-09-09
申请号：US624446
申请日：1984-06-25
申请人： Harry E. Eaton , Richard C. Novak , Alfred P. Matarese
发明人： Harry E. Eaton , Richard C. Novak , Alfred P. Matarese
IPC分类号： C23C4/18 , F01D5/20 , B24D11/02
CPC分类号： F01D11/12 , C23C4/18
摘要： A combination of sintering, plasma arc spraying, hot isostatic pressing and chemical milling is used to form an abrasive surface on an article. Alumina coated silicon carbide particulates are clad with nickel and sinter bonded to the surface of a superalloy turbine blade tip. An impermeable layer of plasma arc sprayed superalloy matrix is deposited over the particulates and then has its inherent voids eliminated by hot isostatic pressing. The abrasive material so formed on the surface is then machined to expose the particulates. Next, a portion of the matrix is removed so that the machined particulates project into space and are thus best enabled to interact with abradable ceramic air seals in a gas turbine engine. The ceramic particulates are sized so they are larger than the finished thickness of the abrasive and they have small aspect ratios. Thus, a high density spacing can be achieved while at the same time it is insured that matrix adequately surrounds the particles and holds them in place during use.
摘要翻译：使用烧结，等离子体电弧喷涂，热等静压和化学研磨的组合来在制品上形成研磨表面。氧化铝涂覆的碳化硅颗粒用镍包覆并烧结结合到超级合金涡轮叶片尖端的表面。将不透水层的等离子体电弧喷涂超合金基体沉积在颗粒上，然后通过热等静压将其固有的空隙消除。然后在表面上形成的研磨材料被加工以暴露颗粒。接下来，去除矩阵的一部分，使得机加工的微粒投射到空间中，因此最佳地能够与燃气涡轮发动机中的可磨损的陶瓷空气密封件相互作用。陶瓷颗粒的尺寸使其大于研磨剂的成品厚度，并且它们具有小的纵横比。因此，可以实现高密度间隔，同时确保基体充分地围绕颗粒并在使用期间将其保持在适当的位置。

2. 发明授权

US4704332A Lightweight fiber reinforced high temperature stable glass-ceramic abradable seal 失效
标题翻译：轻质纤维增强高温稳定玻璃陶瓷耐磨密封
公开(公告)号：US4704332A
公开(公告)日：1987-11-03
申请号：US438144
申请日：1982-11-01
申请人： John J. Brennan , Richard C. Novak
发明人： John J. Brennan , Richard C. Novak
IPC分类号： C03C14/00 , C03C17/23 , F01D11/12 , B32B5/16 , B32B9/04 , B32B17/06 , F04D29/08
CPC分类号： C03C14/002 , C03C17/23 , F01D11/122 , C03C2214/02 , C03C2214/20 , C03C2217/22 , C03C2217/23 , Y02T50/67 , Y02T50/672 , Y10S277/938
摘要： A composite material suitable for use as an abradable seal is described. The seal comprises a high temperature stable fiber reinforced glass or glass-ceramic matrix base having at least one layer of abradable ceramic material, plasma sprayed or bonded to it. The ceramic abradable layer has a working temperature up to at least 3000.degree. F. (1648.degree. C.) and is oxidatively stable. The abradable seal has particular utility in a gas turbine engine.
摘要翻译：描述适合用作可磨损密封件的复合材料。密封件包括具有至少一层可磨损陶瓷材料的高温稳定的纤维增强玻璃或玻璃 - 陶瓷基体基体，等离子喷涂或结合到其上。陶瓷耐磨层的工作温度高达至少3000°F（1648℃），氧化稳定。可磨损密封件在燃气涡轮发动机中具有特别的用途。

3. 发明授权

US4759957A Porous metal structures made by thermal spraying fugitive material and metal 失效
标题翻译：多孔金属结构由热喷涂材料和金属制成
公开(公告)号：US4759957A
公开(公告)日：1988-07-26
申请号：US736404
申请日：1985-05-20
申请人： Harry E. Eaton , Richard C. Novak
发明人： Harry E. Eaton , Richard C. Novak
IPC分类号： C23C4/04 , C23C4/18 , F01D11/12 , B05D1/10
CPC分类号： C23C4/04 , C23C4/18 , F01D11/122
摘要： Porous metal deposits especially useful in gas turbine engines as compressor seals are made by thermal spraying a metal powder and a meltable polymer powder mixture, wherein the spraying process and a subsequent polymer removal process are chosen to produce less than 30 weight percent oxide. Oxide contents of 4-25% are typical. When 86 weight percent nichrome is sprayed with 14 weight percent polymethylmethacrylate the polymer is removed by heating in air to about 315.degree. C. The resultant porous structure will have an oxide content of 7% and an apparent density of about 32%. A meltable polymer additionally produces a more desirable pore structure.
摘要翻译：特别适用于燃气涡轮发动机的多孔金属沉积物，因为压缩机密封件是通过热喷涂金属粉末和可熔融的聚合物粉末混合物制成的，其中选择喷射方法和随后的聚合物去除方法以产生少于30重量％的氧化物。氧化物含量为4-25％是典型的。当用14重量％的聚甲基丙烯酸甲酯喷涂86重量％的镍铬合金时，通过在空气中加热至约315℃除去聚合物。所得多孔结构的氧化物含量为7％，表观密度为约32％。可熔融聚合物另外产生更理想的孔结构。

4. 发明授权

US4422648A Ceramic faced outer air seal for gas turbine engines 失效
标题翻译：陶瓷面向燃气轮机的外部空气密封
公开(公告)号：US4422648A
公开(公告)日：1983-12-27
申请号：US389304
申请日：1982-06-17
申请人： Harry E. Eaton , Richard C. Novak
发明人： Harry E. Eaton , Richard C. Novak
IPC分类号： F01D9/00 , F01D11/08 , F01D11/12
CPC分类号： F01D11/12 , Y10S277/943
摘要： Outer air seal structures of particular suitability for use in gas turbine engines are disclosed. Techniques for improving resistance to erosion while maintaining good abradability are discussed.In one particular structure the ceramic facing material of an outer air seal (30) at the leading edge region (36) is densified by a plasma gun to produce a glazed area (52) which is resistant to erosion.
摘要翻译：公开了特别适用于燃气涡轮发动机的外部空气密封结构。讨论了在保持良好耐磨性的同时提高耐侵蚀性的技术。在一个特定结构中，前缘区域（36）处的外部空气密封件（30）的面向陶瓷的材料由等离子体枪致密，以产生耐腐蚀性的玻璃面积（52）。

5. 发明授权

US4744725A Abrasive surfaced article for high temperature service 失效
标题翻译：磨料表面处理用品，用于高温服务
公开(公告)号：US4744725A
公开(公告)日：1988-05-17
申请号：US624421
申请日：1984-06-25
申请人： Alfred P. Matarese , Harry E. Eaton , Richard C. Novak , James M. Goodman
发明人： Alfred P. Matarese , Harry E. Eaton , Richard C. Novak , James M. Goodman
IPC分类号： B32B15/04 , B32B18/00 , C23C4/18 , F01D5/20 , F04D29/08
CPC分类号： F01D11/12 , C23C4/18 , Y10T428/24372 , Y10T428/24893 , Y10T428/24909 , Y10T428/25 , Y10T428/252
摘要： A very thin abrasive material on a substrate is comprised of ceramic particulates contained within a metal matrix. The particulates extend fully through the matrix from the substrate surface to the machined free surface of the abrasive. In a representative 0.38 mm abrasive the particulates are sized normally at 0.42-0.50 mm and have an aspect ratio of less than 1.9 to 1. This enables a high density of particulates, in the range 33-62 per cm.sup.2, while at the same time ensuring good bonding in that most of the particulates are fully surrounded by matrix. When the abrasive is applied to the tip of a superalloy gas turbine engine blade, about 10-50% of the matrix metal is removed after machining. This allows the machined ceramic particulates to project into space and to thus better interact with ceramic abradable seals. In the preferred practice of the invention the particulates are alumina coated silicon carbide contained in a nickel superalloy matrix.
摘要翻译：基底上非常薄的研磨材料由包含在金属基体内的陶瓷颗粒构成。颗粒从基体表面完全穿过基体到磨料的自由表面。在代表性的0.38毫米磨料中，颗粒的大小通常为0.42-0.50毫米，长径比小于1.9比1.这使高密度的颗粒在每平方厘米33-62范围内，而同时确保良好的粘合，因为大多数颗粒完全被基质包围。当研磨剂施加到超合金燃气轮机发动机叶片的尖端时，机加工后约10-50％的基体金属被去除。这使得机加工的陶瓷颗粒投射到空间中，从而更好地与陶瓷耐磨密封件相互作用。在本发明的优选实践中，颗粒是包含在镍超合金基体中的氧化铝涂覆的碳化硅。

6. 发明授权

US4664973A Porous metal abradable seal material 失效
标题翻译：多孔金属耐磨密封材料
公开(公告)号：US4664973A
公开(公告)日：1987-05-12
申请号：US772200
申请日：1985-09-05
申请人： William F. Otfinoski , Harry E. Eaton , Richard C. Novak
发明人： William F. Otfinoski , Harry E. Eaton , Richard C. Novak
IPC分类号： C22C1/08 , C23C4/04 , C23C4/18 , F01D11/12 , F16J15/44 , B05D1/08
CPC分类号： F01D11/122 , C22C1/08 , C23C4/04 , C23C4/18 , F16J15/445 , Y10T428/249956
摘要： Porous metal structures are especially useful as abradable seals in axial flow compressors. Carefully defined oxide content and density provide a superior combination of abradability and particulate erosion resistance. The seals are comprised of 1-30 weight percent oxide and have 27-38 percent of the solid metal density. A preferred seal is made by plasma arc spraying a mixture of 80Ni-20Cr and polymethylmethacrylate powders and then heating the resultant deposit in air to about 315.degree. C. to cause the polymer to flee. The nichrome seal will have less than 15 percent oxide and a density of about 2.7 g/cm.sup.3, about 32 percent of the solid metal density.
摘要翻译：多孔金属结构特别适用于轴流式压缩机中的可磨损密封件。仔细定义的氧化物含量和密度提供了耐磨性和耐微粒侵蚀性的优异组合。密封件由1-30重量％的氧化物组成，具有27-38％的固体金属密度。优选的密封通过等离子体电弧喷涂80Ni-20Cr和聚甲基丙烯酸甲酯粉末的混合物制成，然后将所得沉积物在空气中加热至约315℃，导致聚合物逃逸。镍铬合金密封件将具有少于15％的氧化物和约2.7g / cm 3的密度，约为固态金属密度的32％。

7. 发明授权

US4595637A Plasma coatings comprised of sprayed fibers 失效
标题翻译：等离子涂层由喷涂纤维组成
公开(公告)号：US4595637A
公开(公告)日：1986-06-17
申请号：US544668
申请日：1983-10-24
申请人： Harry E. Eaton , Richard C. Novak
发明人： Harry E. Eaton , Richard C. Novak
IPC分类号： C23C4/04 , B32B7/00 , B32B15/14
CPC分类号： C23C4/04 , Y10S428/907 , Y10T428/12444 , Y10T428/12535
摘要： Disclosed is a process for plasma spraying small metal fibers, to adhere them to the surface of a workpiece, and articles made using the process. The process is especially useful for improving the strength of plasma arc coatings, as well as for improving the bonding of plasma arc coatings to substrates. To make an improved ceramic faced metal article, fibers are sprayed onto the workpiece by injecting fibers into the plasma stream external to the plasma gun nozzle. Then, plasma sprayed ceramic particles are caused to surround the fibers as a matrix. The optional interposition of a removable polymer material on the workpiece surface, after the fibers are sprayed but before the ceramic matrix is sprayed, provides an effective way of providing a low stiffness connector between a low thermal expansion coefficient ceramic material and a high expansion coefficient metal substrate. The connector alleviates strains from thermal expansion differences.
摘要翻译：公开了一种等离子体喷涂小金属纤维，将其粘附到工件的表面上的方法，以及使用该方法制造的制品。该方法对于提高等离子体电弧涂层的强度以及改进等离子体电弧涂层与基底的结合特别有用。为了制造改进的陶瓷面对金属制品，通过将纤维注入等离子枪喷嘴外部的等离子体流中将纤维喷射到工件上。然后，使等离子体喷涂的陶瓷颗粒以纤维为基质包围。可拆卸的聚合物材料在工件表面上的任选插入在纤维喷涂之后但在陶瓷基体被喷涂之前提供了一种在低热膨胀系数陶瓷材料和高膨胀系数金属之间提供低刚度连接器的有效方式基质。连接器减轻热膨胀差异的应变。

8. 发明授权

US4386112A Co-spray abrasive coating 失效
标题翻译：喷涂研磨涂层
公开(公告)号：US4386112A
公开(公告)日：1983-05-31
申请号：US317685
申请日：1981-11-02
申请人： Harry E. Eaton , Richard C. Novak
发明人： Harry E. Eaton , Richard C. Novak
IPC分类号： B05D1/10 , C23C4/06 , C23C4/12 , F01D5/00 , F01D5/20 , F01D11/02 , F01D11/12
CPC分类号： F01D11/12 , B05D1/10 , C23C4/06 , C23C4/134 , F01D11/02 , F01D5/005
摘要： Methods for applying grit containing abrasive coatings by plasma spray techniques are disclosed. Various concepts for obtaining good adherability of the coating to an underlying substrate and for maintaining angularity of the grit particles are discussed. The concepts employ simultaneous contact of the grit particles with matrix material at the surface of the substrate to be coated. In coating narrow substrates, the substrate is offset from the axis of the plasma stream discharging from the plasma gun.
摘要翻译：公开了通过等离子喷涂技术涂覆含磨料涂层的砂粒的方法。讨论了用于获得涂层对底层基底的良好粘附性以及保持砂粒的角度的各种概念。这些概念使得砂粒与基体材料在待涂覆的基底的表面上同时接触。在涂覆窄基板时，基板偏离从等离子体枪排出的等离子体流的轴线。

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