ES477027A1 - Metodo para la soldadura electrica por arco de las paletas al disco o al contradisco de rotores para maquinas rotativas - Google Patents
Metodo para la soldadura electrica por arco de las paletas al disco o al contradisco de rotores para maquinas rotativasInfo
- Publication number
- ES477027A1 ES477027A1 ES477027A ES477027A ES477027A1 ES 477027 A1 ES477027 A1 ES 477027A1 ES 477027 A ES477027 A ES 477027A ES 477027 A ES477027 A ES 477027A ES 477027 A1 ES477027 A1 ES 477027A1
- Authority
- ES
- Spain
- Prior art keywords
- welding
- blades
- disc
- rotary machine
- counterdisc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- 150000003657 tungsten Chemical class 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3061—Fixing blades to rotors; Blade roots ; Blade spacers by welding, brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Método para la soldadura eléctrica por arco de las paletas al disco o al contradisco de rotores para máquinas rotativas, caracterizados porque: a) la soldadura de las paletas se efectúa desde el exterior del rotor, a través del disco o del contradisco, que a tal fin se dota de acanaladuras obtenidas por trabajo mecánico de fresado; b) en las primeras pasadas de anclaje de las paletas al disco o al contradisco se emplea un electrodo de tungsteno sin metal de aportación y con protección de gas inerte, denominado procedimiento TIG, siendo suministrado el exceso de material necesario para formar los cordones angulares de anclaje de las paletas por el fondo de las acanaladuras practicadas en el disco o en el contradisco, acanaladuras éstas que, al no atravesar completamente el espesor del disco o contradisco, se denominan ojales ciegos; c) en las sucesivas pasadas de relleno de los ojales ciegos se emplea el mismo procedimiento de soldadura TIG pero con material de aportación; y d) el procedimiento TIG empleado en las primeras pasadas de anclaje y en las sucesivas pasadas de relleno de los ojales ciegos está automatizado, en el senido de que corriente eléctrica, tensión, velocidad de soldadura y posición de la extremidad del electrodos de tungsteno son mantenidas constantes por toda la extensión de los ojales.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19201/78A IT1091876B (it) | 1978-01-12 | 1978-01-12 | Metodo per la saldatura elettrica ad arco delle pale al disco o al controdisco di giranti pe macchine rotative |
Publications (1)
Publication Number | Publication Date |
---|---|
ES477027A1 true ES477027A1 (es) | 1979-10-16 |
Family
ID=11155743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES477027A Expired ES477027A1 (es) | 1978-01-12 | 1979-01-09 | Metodo para la soldadura electrica por arco de las paletas al disco o al contradisco de rotores para maquinas rotativas |
Country Status (10)
Country | Link |
---|---|
US (1) | US4302657A (es) |
JP (1) | JPS5497547A (es) |
BE (1) | BE869608A (es) |
CH (1) | CH624037A5 (es) |
DE (1) | DE2830037C2 (es) |
ES (1) | ES477027A1 (es) |
FR (1) | FR2414381A1 (es) |
GB (1) | GB2013123B (es) |
IT (1) | IT1091876B (es) |
NL (1) | NL186948C (es) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362919A (en) * | 1981-02-18 | 1982-12-07 | Transamerica Delaval, Inc. | Method of welding using a covered tungsten electrode |
JPS57149090A (en) * | 1981-03-10 | 1982-09-14 | Kawasaki Heavy Ind Ltd | Production for t-shaped welded joint having minute fillet |
JPS5910791A (ja) * | 1982-07-08 | 1984-01-20 | Toshiba Corp | 密閉形圧縮機の製造方法 |
JPH0320059Y2 (es) * | 1985-09-03 | 1991-04-30 | ||
JPS62187569A (ja) * | 1986-02-13 | 1987-08-15 | Mitsubishi Heavy Ind Ltd | T継手溶接開先 |
JPH04219090A (ja) * | 1990-04-19 | 1992-08-10 | Nec Corp | 監視用tvカメラ装置 |
DE4402493A1 (de) * | 1994-01-28 | 1995-08-03 | Klein Schanzlin & Becker Ag | Laufrad |
US6927361B2 (en) * | 2003-09-04 | 2005-08-09 | Thomas Joseph Kelly | Surface oxide weld penetration enhancement method and article |
EP1785590A1 (de) * | 2005-11-10 | 2007-05-16 | Sulzer Markets and Technology AG | Werkstück sowie Schweissverfahren zur Herstellung eines Werkstücks |
JP4458109B2 (ja) * | 2007-03-27 | 2010-04-28 | 株式会社日立プラントテクノロジー | 溶接溝封止構造 |
JP5061836B2 (ja) * | 2007-10-10 | 2012-10-31 | 株式会社日立プラントテクノロジー | 羽根車の溶接方法及び羽根車 |
JP2009255172A (ja) * | 2008-03-26 | 2009-11-05 | Ebara Corp | T型継手の製造方法 |
US9101997B2 (en) * | 2008-09-11 | 2015-08-11 | Siemens Energy, Inc | Asymmetric heat sink welding using a penetration enhancing compound |
JP5131237B2 (ja) * | 2009-03-27 | 2013-01-30 | 株式会社日立プラントテクノロジー | 羽根車およびその製造方法 |
US11161190B2 (en) | 2015-05-28 | 2021-11-02 | General Electric Company | Electrode for electroerosion machining system |
US10682715B2 (en) | 2015-05-28 | 2020-06-16 | General Electric Company | Method for material recovery in electroerosion machining |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2031138A (en) * | 1934-03-17 | 1936-02-18 | Taylor Edward Hall | Method of welding |
DE758550C (de) * | 1940-07-04 | 1953-12-07 | Versuchsanstalt Fuer Luftfahrt | Verfahren zur Herstellung einer Schweissverbindung an unzugaenglichen Kehlnaehten eines T-artigen Stosses mittels einer daraufgelegten ummantelten Elektrode |
US3012130A (en) * | 1960-04-18 | 1961-12-05 | North American Aviation Inc | Method of joinder |
US3204083A (en) * | 1963-03-25 | 1965-08-31 | Lockheed Aircraft Corp | Low heat plug weld method and apparatus |
US3209122A (en) * | 1963-04-19 | 1965-09-28 | Westinghouse Electric Corp | Method of arc-welding |
GB1028452A (en) * | 1964-03-09 | 1966-05-04 | Pulsometer Pumps Ltd | Rotors for pumps or turbines |
US3688080A (en) * | 1969-09-08 | 1972-08-29 | Andrew John Cartwright | Welding |
FR2227737A5 (es) * | 1973-04-25 | 1974-11-22 | Gastineau Paul | |
DE2503046A1 (de) * | 1974-01-29 | 1975-08-07 | Kobe Steel Ltd | Verfahren zum zusammenschweissen von dicken platten aus aluminium und aluminiumlegierungen |
JPS5194439A (ja) * | 1975-02-17 | 1976-08-19 | Rannayosetsuhoho |
-
1978
- 1978-01-12 IT IT19201/78A patent/IT1091876B/it active
- 1978-07-04 CH CH728778A patent/CH624037A5/it not_active IP Right Cessation
- 1978-07-07 DE DE2830037A patent/DE2830037C2/de not_active Expired
- 1978-07-11 JP JP8363678A patent/JPS5497547A/ja active Granted
- 1978-07-14 GB GB7829908A patent/GB2013123B/en not_active Expired
- 1978-07-21 NL NLAANVRAGE7807817,A patent/NL186948C/xx not_active IP Right Cessation
- 1978-08-02 FR FR7822856A patent/FR2414381A1/fr active Granted
- 1978-08-08 BE BE78189773A patent/BE869608A/xx not_active IP Right Cessation
-
1979
- 1979-01-09 ES ES477027A patent/ES477027A1/es not_active Expired
-
1980
- 1980-06-12 US US06/158,866 patent/US4302657A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS637873B2 (es) | 1988-02-18 |
IT7819201A0 (it) | 1978-01-12 |
GB2013123A (en) | 1979-08-08 |
NL7807817A (nl) | 1979-07-16 |
FR2414381A1 (fr) | 1979-08-10 |
NL186948C (nl) | 1991-04-16 |
IT1091876B (it) | 1985-07-06 |
DE2830037C2 (de) | 1984-04-19 |
BE869608A (fr) | 1979-02-08 |
DE2830037A1 (de) | 1979-07-19 |
GB2013123B (en) | 1982-05-12 |
US4302657A (en) | 1981-11-24 |
CH624037A5 (en) | 1981-07-15 |
JPS5497547A (en) | 1979-08-01 |
NL186948B (nl) | 1990-11-16 |
FR2414381B1 (es) | 1982-11-26 |
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