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公开(公告)号：AT474680T
公开(公告)日：2010-08-15
申请号：AT04256369
申请日：2004-10-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BEALS JAMES T , PERSKY JOSHUA , SHAH DILIP M , SEETHARAMAN VENKAT , BOSE SUDHANGSHU , SNYDER JACOB , SANTELER KEITH , VERNER CARL , MURRAY STEPHEN D , MARCIN JOHN J , GUPTA DINESH , BALES DANIEL A , PAULONIS DANIEL F , COTNOIR GLENN , WIEDEMER JOHN
Abstract: A refractory metal core for use in a casting system has a coating for providing oxidation resistance during shell fire and protection against reaction/dissolution during casting. In a first embodiment, the coating comprises at least one oxide and a silicon containing material. In a second embodiment, the coating comprises an oxide selected from the group consisting of calcia, magnesia, alumina, zirconia, chromia, yttria, silica, hafnia, and mixtures thereof. In a third embodiment, the coating comprises a nitride selected from the group consisting of silicon nitride, sialon, titanium nitride, and mixtures thereof. Other coating embodiments are described in the disclosure.
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公开(公告)号：DE602004019613D1
公开(公告)日：2009-04-09
申请号：DE602004019613
申请日：2004-10-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BEALS JAMES T , SHAH DILIP M , SNYDER JACOB , WIEDEMER JOHN
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公开(公告)号：DE60224631D1
公开(公告)日：2008-03-06
申请号：DE60224631
申请日：2002-10-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , MARCIN JOHN JOSEPH JR , THOMPSON BEALS JAMES , MURRAY STEPHEN DOUGLAS
Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.
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公开(公告)号：AT383918T
公开(公告)日：2008-02-15
申请号：AT02257358
申请日：2002-10-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , MARCIN JOHN JOSEPH JR , THOMPSON BEALS JAMES , MURRAY STEPHEN DOUGLAS
Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.
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公开(公告)号：CA2414653C
公开(公告)日：2006-12-05
申请号：CA2414653
申请日：2002-12-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , ROE DAVID LEE , CLEMENS READE
Abstract: The present invention relates to a diamond tipped indenting tool for marking the surface of metal parts. The indenting tool comprises a shank having a tip end and a diamond affixed to the tip end by a braze material. The braze material preferably comprises a braze alloy which wets both the diamond and the material forming the shank. The diamond forms the point of the tool and is preferably a high quality single crystal diamond.
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Patent Agency Ranking
公开(公告)号：MY125231A
公开(公告)日：2006-07-31
申请号：MYPI20005894
申请日：2000-12-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN WILLIAM PATRICK , OLSON WALTER E , SHAH DILIP M , CETEL ALAN DAVID
Abstract: A TURBINE BLADE HAS AN AIR FOIL (12), A ROOT (14) AND A PLATFORM (16) LOCATED BETWEE THE AIRFOIL (12) AND ROOT (14). THE PLATFORM (16) HAS AN UNDERSIDE ADJACENT THE ROOT, AND A CORROSION RESISTANT OVERLAY COATING (21;24) SUCH AS AN MCRAI 1Y OR A NOBLE METAL CONTAINING ALUMINADE OR CORROSION INHIBITING CERAMIC IS LOCATED ON PORTIONS OR THE BLADE NOT PREVIOUSLY COVERED WITH SUCH COATINGS, E.G., THE UNDERSIDE OF THE PLATFORM AND THE NECK (19). THE APPLIED COATING PREVENTS CORROSION AND STRESS CORROSION CRACKING OF BLADE IN THESE REGIONS. WHERE THE AIRFOIL IS ALSO COATED, THE AIRFOIL COATING MAY HAVE A COMPOSITION DIFFERENT FROM THAT OF THE COATING ON THE UNDERPLATFORM SURFACES.[FIG. 1A].
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公开(公告)号：BR0204771A
公开(公告)日：2005-04-19
申请号：BR0204771
申请日：2002-11-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CLEMENS READE , SHAH DILIP M , ROE DAVID LEE
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公开(公告)号：CA1291350C
公开(公告)日：1991-10-29
申请号：CA528264
申请日：1987-01-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , DUHL DAVID N
Abstract: Single Crystal Articles Having Reduced Anisotropy The anisotropy typically observed in single crystal nickel base superalloys is reduced by intentionally adding certain small amounts of carbon, boron, zirconium or hafnium, either individually or in combination, to the alloy composition.
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公开(公告)号：AU596403B2
公开(公告)日：1990-05-03
申请号：AU7070387
申请日：1987-03-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , DUHL DAVID N
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公开(公告)号：EP3047103A4
公开(公告)日：2017-07-05
申请号：EP14845908
申请日：2014-08-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MARCIN JOHN J JR , BULLIED STEVEN J , SHAH DILIP M , CETEL ALAN D
CPC classification number: F01D5/28 , B23K20/02 , B23K2201/001 , B23K2203/08 , F01D5/147 , F05D2220/32 , F05D2230/236 , F05D2240/307 , F05D2300/175 , F05D2300/607
Abstract: A blade (60; 60-2) comprises an airfoil (61) and an attachment root (63). The blade has a tipward zone (80; 80-2; 80-2, 81) and a rootward zone (82; 82-2, 81; 82). The rootward zone has a single crystal structure. The tipward zone has a single crystal structure. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other.
Abstract translation: 叶片（60; 60-2）包括翼型件（61）和附接根部（63）。 叶片具有向前区（80; 80-2; 80-2,81）和向根区（82; 82-2,81; 82）。 根部区域具有单晶结构。 向前的区域具有单晶结构。 根部区域和倾斜区域的晶体取向彼此偏离至少15°。
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