[특허]Piece of abradable material for the manufacture of a segment of an abradable ring seal for a turbomachine, and process for the manufacture of such a piece

Piece of abradable material for the manufacture of a segment of an abradable ring seal for a turbomachine, and process for the manufacture of such a piece 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-070/58 F01D-011/12 F01D-025/24 B29D-099/00
출원번호	US-0303213 (2014-06-12)
등록번호	US-9533454 (2017-01-03)
우선권정보	FR-13 55493 (2013-06-13)
발명자 / 주소	Konigs, Karl-Heinz Sonois, Gerome Martins, Philippe
출원인 / 주소	COMPOSITE INDUSTRIE
대리인 / 주소	Young & Thompson
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A molded piece 25 of abradable material for use in the manufacture of a segment of an abradable ring seal for a turbomachine includes a mixture of epoxy resin and crosslinking agent. The piece 25 has a curved shape and dimensions adapted to correspond to a receiver provided for that purpose in the i

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1. A process for manufacture for a segment of an abradable ring seal for a turbomachine, said process comprising the following steps: a. mixing an epoxy resin and a crosslinking agent in a mixer in order to obtain a paste;b. rolling the paste obtained in step a in a rolling mill, the rolling mill being arranged so that a strip of paste having a substantially constant width and thickness is obtained;c. cutting the strip of paste to form sections;d. placing a section in a mold having a curved shape and dimensions to form a segment of an abradable ring seal corresponding to a receiver in the inner surface of a casing of a fan of a turbomachine, and polymerizing and curing the section in the mold; ande. ejecting the polymerized segment from the mold. 2. The process according to claim 1, wherein steps b. and c. are carried out on a common manufacturing line. 3. The process according to claim 2, wherein the polymerized sections formed are of a size such as to manufacture a segment of an abradable ring seal of approximately 360°. 4. The process according to claim 1, wherein the polymerized sections formed are of a size such as to manufacture a segment of an abradable ring seal of approximately 360°. 5. The process according to claim 1, wherein an additional step is carried out: b′: to form impressions in a surface of the strip of paste. 6. The process according to claim 5, wherein step b. of rolling and the additional step b′ of forming the impressions are carried out by at least one common roller, said roller having a die surface for forming said impressions by pressure. 7. The process according to claim 1, wherein the epoxy in step a., includes using at least one of bisphenol-A-epichlorhydrin and bisphenol-F-epichlorhydrin. 8. The process according to claim 7, wherein in step a., further comprising mixing hollow glass microspheres in the mixer in order to obtain the paste. 9. The process according to claim 1, wherein, step a. includes depositing the paste from the mixer onto a conveyor belt and conveying the paste to a rolling mill comprised of plural rollers including an upper roller and a lower roller, the lower roller having an outside surface which is cylindrical and smooth, the upper roller comprising a central outside surface portion which is cylindrical and of a locally reduced diameter and which is arranged between two end surface portions which are cylindrical and of locally larger diameter than the reduced diameter of the central outside surface portion, andstep b. includes using the rollers to calender the paste into the substantially constant width and thickness. 10. The process according to claim 1, wherein, at the end of step b., the constant width is in a range of 10 to 100 centimeters and the thickness is in a range of 7 to 15 millimeters, andat the end of step c., the strips of paste are cut into sections of a substantially identical length, the substantially identical length being based on dimensions corresponding to the receiver. 11. The process according to claim 1, wherein, at the ejection of the polymerized section from the mold, the polymerized section is shell-shaped with a single dimension of curvature in a plane perpendicular to the width direction. 12. The process according to claim 1, wherein, step a. includes depositing the paste from the mixer onto a conveyor belt and conveying the paste to a rolling mill comprised of at least one roller.

이 특허에 인용된 특허 (30)

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Hicks, Irwin A.; Ruddy, Donald C., Frangible seal coating and its method of production.
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Evans, Charles R.; Ward, Douglas D., Jet aircraft fan case containment design.
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Buddenbohm Harold W. (Reseda CA), Knurled turbine tip seal.
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Nowak Gregory P. ; Tegeler Alan F. ; Timmons Tracy L., Loaded syntactic foam-core material.
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Schuster, Laurent, Method for manufacturing by molding a machine structural element having an abradable surface, and structural element.
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Langer Herbert (Dammarie les Lys FRX) Saiveau Gerald (St. Germain les Corbeil FRX), Method of making an abradable stator joint for an axial turbomachine.
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Langenbrunner Leslie L. (Cincinnati OH) Proffitt Paul F. (Cincinnati OH), Method of removing an abradable shroud assembly for turbomachinery.
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Anderson Robert E. (Huntington Station NY) Parente Charles A. (Oyster Bay NY), One-piece engine inlet acoustic barrel.
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Asada Shiro (Toyohashi JPX) Takiguchi Ikuo (Toyohashi JPX) Agata Akira (Toyohashi JPX) Hattori Toshihiro (Nagoya JPX), Prepreg and process for producing the same.
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Ikegawa Naoto,JPX ; Harada Hiroshi,JPX ; Hamabe Ryuichi,JPX, Process and apparatus for producing prepreg.
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Nakamura Yoshihiko (Nishinomiya JPX) Matsumura Masahiro (Katano JPX) Fukuhara Yasuo (Osaka JPX) Hatta Yukio (Minoo JPX) Yamamoto Masaharu (Nagoya JPX) Miyao Makizi (Kawagoe JPX) Nagao Kiyohiro (Hiki-, Process for manufacturing prepregs for use as electric insulating material.
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Held Kurt (Alte Strasse 1 D-7218 Trossingen 2 DEX), Process of making resin-impregnated material webs.
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Lardellier Alain M. J. (Melun FRX), Removable support for the sealing lining of the casing of jet engine blowers.
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Morelock Charles R. (Ballston Spa NY), Rotary sealant abradable material and method for making.
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Grandey Max F. (Monroe OH), Seal including a non-metallic abradable material.
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Carroll Charles D. (Greensburg IN) Meginnis George B. (Indianapolis IN), Seal structure.
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Leonard John F. (Bristol GB2), Shroud liners.
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Metzger ; Arthur C., Soundproof structure.
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Sech John R. ; Ellis Patrick H., Turbine engine rotor assembly blade outer air seal.
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Piece of abradable material for the manufacture of a segment of an abradable ring seal for a turbomachine, and process for the manufacture of such a piece 원문보기

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Piece of abradable material for the manufacture of a segment of an abradable ring seal for a turbomachine, and process for the manufacture of such a piece 원문보기

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