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1.发明申请公开(公告)号：US20190040486A1
公开(公告)日：2019-02-07
申请号：US16155087
申请日：2018-10-09
Applicant: United Technologies Corporation
Inventor： Herbert A. Chin , David A. Haluck , William P. Ogden , Michael A. Moulin
IPC: C21D9/38 , C23C8/32 , C21D7/13 , C23C8/02 , C23C8/22 , C21D1/06 , F16C33/62 , F16C33/34 , F16C33/32 , C21D6/00
CPC classification number: C21D9/38 , C21D1/06 , C21D6/002 , C21D7/13 , C21D2211/008 , C23C8/02 , C23C8/22 , C23C8/32 , F16C33/32 , F16C33/34 , F16C33/62 , F16C2204/72 , F16C2223/12 , F16C2223/16
Abstract: A method for cost effectively case hardening a component formed from a martensitic stainless steel material with a desired metallurgical condition for high temperature, high rolling contact fatigue, corrosion and spall initiation and propagation resistance bearing performance. The method describes a method to significantly reduce the carburization or carbo-nitriding process times for appreciable reduction in manufacturing cost. The Method includes the steps of: forming the component from a martensitic stainless steel material having an ASTM grain size of 9 or finer; and subjecting the component to one of a carburization and a carbo-nitriding treatment with significantly lower case hardening times for manufacturing cost-effectiveness.
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Patent Agency Ranking
公开(公告)号：US20160032976A1
公开(公告)日：2016-02-04
申请号：US14776190
申请日：2014-01-15
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Herbert A. Chin , William P. Ogden , David A. Haluck , Ronald F. Spitzer
CPC classification number: F16C33/62 , C21D6/002 , C21D9/36 , C21D9/40 , C22C38/00 , C22C38/02 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/38 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/58 , C23C8/22 , C23C8/26 , C23C8/32 , C23C8/38 , F16C19/02 , F16C33/32 , F16C2202/04 , F16C2204/72 , F16C2206/58 , F16C2240/18 , F16C2240/40 , F16C2240/48 , F16C2360/23
Abstract: A rolling element bearing includes a plurality of bearing components, which include one or more rolling elements, an inner ring and an outer ring. A first of the bearing components includes martensitic stainless steel configured with a core and a hardened case. The martensitic stainless steel of the core includes approximately 8% by weight or more chromium. The martensitic stainless steel of the hardened case has a grain size that is substantially equal to or finer than ASTM grain size #7. The martensitic stainless steel of the hardened case includes approximately 6% by weight or more chromium, and carbon. Molecules that include the carbon are substantially uniformly dispersed within the hardened case.
Abstract translation: 滚动体轴承包括多个轴承部件，其包括一个或多个滚动元件，内圈和外圈。 第一个轴承部件包括配置有芯和硬化壳体的马氏体不锈钢。 核心的马氏体不锈钢包括约8重量％或更多的铬。 硬化壳的马氏体不锈钢的晶粒尺寸基本上等于或小于ASTM晶粒尺寸＃7。 硬化壳的马氏体不锈钢包括大约6重量％或更多的铬和碳。 包含碳的分子基本均匀地分散在硬化的壳体内。
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3.发明授权公开(公告)号：US10577672B2
公开(公告)日：2020-03-03
申请号：US16155087
申请日：2018-10-09
Applicant: United Technologies Corporation
Inventor： Herbert A. Chin , David A. Haluck , William P. Ogden , Michael A. Moulin
IPC: C21D9/38 , C21D1/06 , C21D7/13 , C23C8/02 , C23C8/22 , C23C8/32 , F16C33/32 , F16C33/34 , F16C33/62 , C21D6/00
Abstract: A method for cost effectively case hardening a component formed from a martensitic stainless steel material with a desired metallurgical condition for high temperature, high rolling contact fatigue, corrosion and spall initiation and propagation resistance bearing performance. The method describes a method to significantly reduce the carburization or carbo-nitriding process times for appreciable reduction in manufacturing cost. The Method includes the steps of: forming the component from a martensitic stainless steel material having an ASTM grain size of 9 or finer; and subjecting the component to one of a carburization and a carbo-nitriding treatment with significantly lower case hardening times for manufacturing cost-effectiveness.
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公开(公告)号：US10829831B2
公开(公告)日：2020-11-10
申请号：US15411355
申请日：2017-01-20
Applicant: United Technologies Corporation
Inventor： Dilip M. Shah , Herbert A. Chin , John Joseph Marcin , Paul L. Reynolds , Gabriel L. Suciu , Paul D. Genereux , Carl E. Kelly
IPC: C21D8/10 , C21D9/08 , C22F1/10 , C22C38/00 , F01D5/02 , C30B29/52 , C30B33/02 , C22C19/03 , B22D27/04 , C21D1/26 , C22C19/05
Abstract: High modulus turbine shafts and high modulus cylindrical articles are described as are the process parameters for producing these shafts and cylindrical articles. The shafts/articles have a high Young's modulus as a result of having high modulus crystal texture along the longitudinal axis of the shaft/article. The shafts are produced from directionally solidified seeded single crystal cylinders that are axisymmetrically hot worked before a limited recrystallization process is carried out at a temperature below the recrystallization temperature of the alloy. The disclosed process produces an intense singular texture and results in shaft or cylindrical article with a Young's modulus that is at least 40% greater than that of conventional nickel or iron alloys or conventional steels.
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公开(公告)号：US20130266298A1
公开(公告)日：2013-10-10
申请号：US13912543
申请日：2013-06-07
Applicant: United Technologies Corporation
Inventor： James J. Moor , Thomas DeMichael , Herbert A. Chin , Wangen Lin
IPC: C21D1/00
CPC classification number: C21D1/00 , C21D1/04 , C21D1/34 , C21D9/32 , C21D9/50 , F01D5/286 , F01D5/34 , F05D2230/40 , Y10T29/49336
Abstract: A device and method for locally heat treating at least one airfoil in an integrally bladed rotor device. A pair of IR heat sources are positioned to direct IR heat rays in the direction where local heat treatment is required. A pair of parabolic mirrors are positioned to direct the IR heat rays on to the metal component. The heat treating is useful after welding the airfoil on to the rotor device.
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公开(公告)号：US20170130289A1
公开(公告)日：2017-05-11
申请号：US15411355
申请日：2017-01-20
Applicant: United Technologies Corporation
Inventor： Dilip M. Shah , Herbert A. Chin , John Joseph Marcin , Paul L. Reynolds , Gabriel L. Suciu , Paul D. Genereux
Abstract: High modulus turbine shafts and high modulus cylindrical articles are described as are the process parameters for producing these shafts and cylindrical articles. The shafts/articles have a high Young's modulus as a result of having high modulus crystal texture along the longitudinal axis of the shaft/article. The shafts are produced from directionally solidified seeded single crystal cylinders that are axisymmetrically hot worked before a limited recrystallization process is carried out at a temperature below the recrystallization temperature of the alloy. The disclosed process produces an intense singular texture and results in shaft or cylindrical article with a Young's modulus that is at least 40% greater than that of conventional nickel or iron alloys or conventional steels.
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