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61. 发明专利

JPH09125903A MANUFACTURE OF HOLLOW BLADE FOR TURBINE ENGINE 失效
公开(公告)号：JPH09125903A
公开(公告)日：1997-05-13
申请号：JP25680996
申请日：1996-09-27
申请人： SNECMA , DASSAULT AVIONS
发明人： MATEYUU FUIRITSUPU ARUBEERU BI , GUZABIE JIERAARU ANDORE KUUDOR , ARETSUKUSU PIEERU DOUBUROWA , KURISUTOFU NIKORA MARII JIYOZE , JIYANNFURANSOWA JIYORUJIYU JIY , BURUUNO ANDORE MARII RORAN
IPC分类号： F01D5/18 , B21D26/055 , B21K3/00 , B23K20/02 , B23K20/18 , B23P15/04
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a hollow blade of a turbine engine which can bring about substantial particularity and improvement to obtain the blade having a mechanical characteristic under a service condition by a proper shape. SOLUTION: Machine work is performed by forging a primary part while arranging a spare of a material in local areas 14 and 15 of an inside surface of the casting skin, tail end journals 17 and 18 and a positioning hole 19. A diffusive barrier is accumulated by application of a mask, cutting by a specific tool, separation, accumulation of a coating, separation, preliminary baking processing, purification and an inspection, and the primary part is assembled, and diffusive welding is performed under balanced pressure, and cold separation of the primary part, a flow of a material placed as a spare on weld reinforcement 14 around a cavity of a blade, molding by a mechanical means to apply stress to the blade, expansion under pressurization to be taken out in succession to it and superplastic molding, are performed.

62. 发明专利

JP2505949B2 失效
公开(公告)号：JP2505949B2
公开(公告)日：1996-06-12
申请号：JP5226892
申请日：1992-03-11
申请人： ARISON ENJIN CO INC
发明人： BURUUSU ARAN EUINGU , SUCHIIUN NOOMAN HAMONDO , JON ORIUAA JAKOTSUKUSU
IPC分类号： B23K1/00 , B23K11/087 , B23K20/00 , B23P11/00 , B23P15/04 , F01D5/18 , F01D5/30

63. 发明专利

JPH06235301A MANUFACTURE OF TURBINE MOVING BLADE HAVING WATER DROPLET CORROSION RESISTANCE AND PRODUCT OBTAINED BY SAID MANUFACTURE 失效
公开(公告)号：JPH06235301A
公开(公告)日：1994-08-23
申请号：JP32556293
申请日：1993-12-24
申请人： GEN ELECTRIC
发明人： JIERARUDO AARU KUROOMAA , POORU FURANSHISU MAAREI , JIEEMUZU REIMONDO PEDAASON
IPC分类号： F01D5/12 , B23P6/00 , B23P15/04 , F01D5/00 , F01D5/28
摘要： PURPOSE: To provide a turbine moving blade having droplet erosion resistance and a two-layer metallic structure. CONSTITUTION: A moving blade 10 including a blade part 12 having a front edge 14 and a rear edge 16 and made of a first steel alloy is formed an insert 18 made of second steel alloy is welded to the front edge 14 of the moving blade, a heat treatment is applied to the moving blade 10 and the insert 18, finish machining is applied to the moving blade 10 and the insert 18, and then the insert 18 is hardened to impart water droplet erosion resistance to the insert 18.

64. 发明专利

JPH05280301A 失效
公开(公告)号：JPH05280301A
公开(公告)日：1993-10-26
申请号：JP15992692
申请日：1992-06-19
IPC分类号： B23K20/00 , B23P15/04 , C23F4/00 , F01D5/18 , F01D9/02
摘要： PURPOSE: To eliminate cutting and machining fluid flowing grooves on bonded parts by interposing a foil to be diffusion bonded between a first member and a second member, and forming cooling grooves on one or both surfaces of the foil. CONSTITUTION: A plurality of cooling slots or grooves 12 are arranged on side surfaces of a foil 10 for diffusion bonding. The foil 10 is made of a material with suitability for the base alloy to be diffusion bonded. The depth of the groove 12 is about 0.005 inch from the photoetching surface thereof. The thickness of the foil 10 may be about 0.015 inch. The foil 10 to be bonded is diffusion bonded with a pair of members 16, 18 that can be diffusion bonded. The members 16, 18 are heated or cooled by a heat transmitting fluid 26 flowing from a duct 24 to the groove 12. As the groove 12 is formed by photoetching, it is not necessary to cut and machine fluid flowing grooves on the bonded machine parts.

65. 发明专利

JPH05208325A STEAM TURBINE AND ITS PREPARATION 失效
公开(公告)号：JPH05208325A
公开(公告)日：1993-08-20
申请号：JP17971592
申请日：1992-07-07
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： DENISU REI AMOSU
IPC分类号： B23P15/04 , B23K20/00 , B23K20/12 , F01D5/00 , F01D5/28
摘要： PURPOSE: To provide a manufacturing method of steam turbine blades that have an erosion-resistant trailing edge portion formed by a friction surfacing technique. CONSTITUTION: The steam turbine blade has a trailing edge portion 5 of erosion- resistant material deposited on the blade airfoil by a friction surfacing method. A rotating consumable rod 10 of erosion-resistant material is placed into contact under an axial load 11 against a bonding surface 15 formed on the airfoil to thus plasticize a portion of the rod 10 adjacent the bonding surface 15. The rod 10 then traverses the surface 15 in a linear direction 12 to leave in its wake a layer 8 of erosion-resistant material bonded to the airfoil by a high- quality metallurgical bond. The layer 8 is then ground to form the smooth contour desired for the trailing edge 5.

66. 发明专利

JPH0552101A HOLLOW FAN MOVING BLADE OF GAS TURBINE 失效
公开(公告)号：JPH0552101A
公开(公告)日：1993-03-02
申请号：JP21212591
申请日：1991-08-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： UMEYA MASAHIKO , MAKITA HARUOMI
IPC分类号： B23P15/04 , F01D5/14 , F01D5/18 , F04D29/38
摘要： PURPOSE:To improve fatigue strength of a joint part between a skin and a core, in the hollow fan moving blade of a gas turbine in which the core formed in a hollow part formed between two skins is stored, and the core is joined with the skins. CONSTITUTION:In the hollow fan moving blade of a gas turbine in which a core 5 formed in a hollow part formed between two skins 1 is contained and the core 5 is joined with the two skins 1, the joint part between the skin 1 and the core 5 is constructed by an island shaped projection 1a, and the core 5 is joined with the projection 1a.

67. 发明专利

JPH0523920A JUNCTION OF CORROSION PROTECTIVE PIECE OF TURBINE ROTOR BLADE 失效
公开(公告)号：JPH0523920A
公开(公告)日：1993-02-02
申请号：JP17965191
申请日：1991-07-19
申请人： HITACHI LTD
发明人： ISHIMURA TETSURO , NASHIMOTO KATSUNORI , KOBAYASHI KAZU , YONEZAWA TATSUO , ONODA TAKESHI
IPC分类号： B23K15/00 , B23P15/04 , F01D5/14
摘要： PURPOSE:To reduce the manufacturing cost of a turbine rotor blade whose junction reliability between corrosion protective pieces and a rotor blade main body is high, and welding frequency is small. CONSTITUTION:Junction surfaces 11, 12 nearly at a right angle to the blade surface are formed at the top end part of a turbine rotor blade main body 10 at two places on different steps, and, at the same time, junction surfaces 21, 22 on different steps facing the junction surfaces 11, 12 of the turbine rotor blade main body 10 are formed on the corrosion protective piece 20 so that the corrosion protective piece 20 can be jointed to the top end part of the turbine rotor blade main body 10. And, shims 31, 32 having thickness capable of joining both members 10, 20 at one pass by electron beam welding and hardness lower than that of both members 10, 20 are interposed between the junction surfaces 11, 12 of the turbine rotor blade main body 10 and the junction surfaces 21, 22 of the corrosion protective piece 20, both members 10, 20 are forced to thrust each other, and the parts thrusted each other are welded by electron beam welding.

68. 发明专利

JPH04253532A MANUFACTURE OF HOLLOW METAL PRODUCT 失效
公开(公告)号：JPH04253532A
公开(公告)日：1992-09-09
申请号：JP26526391
申请日：1991-09-17
申请人： UNITED TECHNOLOGIES CORP
发明人： PIITAA YUUJIIN RAIBUFURIIDO , REIMONDO POORU RISUTAU , SUTEIIBUN FURANSHISU KIINII , DENISU UENTOWAASU
IPC分类号： B21D51/02 , B21K3/00 , B21K25/00 , B23K20/00 , B23P15/04 , F01D5/14 , F01D5/18
摘要： PURPOSE: To produce a hollow article by using a simplified machining concept and simple adhering tool while forming a finished article shape to a desired shape by dividing the article to be produced to 2 and more portions and dividing the surface for joining these portions along a regulated surface. CONSTITUTION: The one side of at least two component portions of preforms of the prescribed shape facing each other is machined and is formed to the shape having at least one recessed part. At least the two component portions of the preforms are forged and adhered within molds 31, 32 formed with cavities 34, 36 of the prescribed shapes, by which the shapes of the outside surfaces of the preforms are made to substantially comply with the prescribed shapes. Simultaneously the portions not having the recessed parts are adhered to each other to form the preform having at least one internal cavity. The adhered preform is formed by introducing a non-oxidizing high-pressure gas into at least one internal cavity in such a manner that the outside surface of the joined preform adheres tightly to the inside surfaces of the cavities of the molds.

69. 发明专利

JPH0427365B2 失效
公开(公告)号：JPH0427365B2
公开(公告)日：1992-05-11
申请号：JP2369085
申请日：1985-02-12
申请人： GEN ELECTRIC
发明人： GAI KURIFU MAAFUI , JATSUKII DEERU JONZU , CHAARUSU TOMASU SAREMU
IPC分类号： F01D5/14 , B23P15/02 , B23P15/04 , B29D99/00 , B32B3/10 , B64C3/18 , B64C11/26 , F01D5/18 , F01D5/28 , F01D9/04

70. 发明专利

JPS62264831A MANUFACTURE FOR TURBINE WHEEL 失效
公开(公告)号：JPS62264831A
公开(公告)日：1987-11-17
申请号：JP10394086
申请日：1986-05-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： SATO KATSUMI
IPC分类号： B23H7/02 , B23H9/10 , B23P15/04
摘要： PURPOSE:To enable the unevenness of machining accuracy to be prevented by providing a scooped piece, which is obtained by hollowing a blade implanting groove, serving for a blade root and welding a blade part to said blade root by electron beam welding thereafter fitting said blade root to the blade implanting groove. CONSTITUTION:First a blade implanting groove is hollowed to be formed in the peripheral edge part of a rotor disc 7 by wire cut electric discharge machining, and a scooped piece, which is obtained by hollowing the blade implanting groove, is used serving for a blade root Br. And a separately molded blade part Bl is welded to said blade root Br by electron beam welding. This electron beam welding device comprises an electron generating chamber 100, beam inducing path 200, welding work chamber 300, welding work moving table 400, vacuum exhaust means 500, control unit 600 and a high voltage power source 700. A turbine wheel is manufactured by fitting the blade root Br of a blade, integrally formed by said electron beam welding, to the blade implanting groove of the rotor disc.

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