ITMI921421A1 - Soluzione di attacco e procedimento per l'allontanamento di strati metallici di protezione contro una corrosione provocata da gas caldi e rivestimenti di reazione di gas caldi su palette di turbine - Google Patents

Soluzione di attacco e procedimento per l'allontanamento di strati metallici di protezione contro una corrosione provocata da gas caldi e rivestimenti di reazione di gas caldi su palette di turbine

Info

Publication number
ITMI921421A1
ITMI921421A1 IT001421A ITMI921421A ITMI921421A1 IT MI921421 A1 ITMI921421 A1 IT MI921421A1 IT 001421 A IT001421 A IT 001421A IT MI921421 A ITMI921421 A IT MI921421A IT MI921421 A1 ITMI921421 A1 IT MI921421A1
Authority
IT
Italy
Prior art keywords
hot gas
removal
procedure
protection against
metal layers
Prior art date
Application number
IT001421A
Other languages
English (en)
Inventor
Rolf-Jorg Dunker
Holger Polanetzki
Martin Thoma
Original Assignee
Mtu Motoren Und Turbinen Union Munchen Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mtu Motoren Und Turbinen Union Munchen Gmbh filed Critical Mtu Motoren Und Turbinen Union Munchen Gmbh
Publication of ITMI921421A0 publication Critical patent/ITMI921421A0/it
Publication of ITMI921421A1 publication Critical patent/ITMI921421A1/it
Application granted granted Critical
Publication of IT1258963B publication Critical patent/IT1258963B/it

Links

Classifications

    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/002—Cleaning of turbomachines
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
ITMI921421A 1991-06-20 1992-06-10 Soluzione di attacco e procedimento per l'allontanamento di strati metallici di protezione contro una corrosione provocata da gas caldi e rivestimenti di reazione di gas caldi su palette di turbine IT1258963B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4120305A DE4120305C1 (it) 1991-06-20 1991-06-20

Publications (3)

Publication Number Publication Date
ITMI921421A0 ITMI921421A0 (it) 1992-06-10
ITMI921421A1 true ITMI921421A1 (it) 1993-12-10
IT1258963B IT1258963B (it) 1996-03-11

Family

ID=6434325

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921421A IT1258963B (it) 1991-06-20 1992-06-10 Soluzione di attacco e procedimento per l'allontanamento di strati metallici di protezione contro una corrosione provocata da gas caldi e rivestimenti di reazione di gas caldi su palette di turbine

Country Status (4)

Country Link
US (1) US5248381A (it)
DE (1) DE4120305C1 (it)
GB (1) GB2257395B (it)
IT (1) IT1258963B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695659A (en) * 1995-11-27 1997-12-09 United Technologies Corporation Process for removing a protective coating from a surface of an airfoil
GB9814075D0 (en) * 1998-06-29 1998-08-26 Ge Aircraft Engine Services Li Method of stripping a coating from an aircraft engine part
US6355116B1 (en) 2000-03-24 2002-03-12 General Electric Company Method for renewing diffusion coatings on superalloy substrates
US6454870B1 (en) 2001-11-26 2002-09-24 General Electric Co. Chemical removal of a chromium oxide coating from an article
US6699101B2 (en) * 2001-11-29 2004-03-02 General Electric Company Method for removing a damaged substrate region beneath a coating
US6878215B1 (en) 2004-05-27 2005-04-12 General Electric Company Chemical removal of a metal oxide coating from a superalloy article
US20080264897A1 (en) * 2007-04-30 2008-10-30 Canan Uslu Hardwicke Turbine component pattern forming method
US10189100B2 (en) 2008-07-29 2019-01-29 Pratt & Whitney Canada Corp. Method for wire electro-discharge machining a part
US8925201B2 (en) * 2009-06-29 2015-01-06 Pratt & Whitney Canada Corp. Method and apparatus for providing rotor discs
US20110164981A1 (en) * 2010-01-04 2011-07-07 General Electric Company Patterned turbomachine component and method of forming a pattern on a turbomachine component
US9926517B2 (en) 2013-12-09 2018-03-27 General Electric Company Cleaning solution and methods of cleaning a turbine engine
US9957066B2 (en) 2015-02-13 2018-05-01 General Electric Company Detergent delivery methods and systems for turbine engines
BR102016021259B1 (pt) 2015-10-05 2022-06-14 General Electric Company Método e soluções de limpeza de um motor de turbina e composição de reagente
US10316414B2 (en) * 2016-06-08 2019-06-11 United Technologies Corporation Removing material with nitric acid and hydrogen peroxide solution

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR677069A (it) * 1929-10-04
US1780594A (en) * 1929-10-09 1930-11-04 Grasselli Chemical Co Acid treatment of metal articles
US2977318A (en) * 1956-06-20 1961-03-28 Hagan Chemicals & Controls Inc Substituted amide inhibited acid compositions
US3053719A (en) * 1958-12-08 1962-09-11 Purex Corp Ltd Composition and process for etching magnesium
US3277008A (en) * 1962-04-20 1966-10-04 Pfaudler Permutit Inc Surface cleaning method and composition
DE1296111B (de) * 1965-10-30 1969-05-29 Nikex Nehezipari Kulkere Mittel zum Entfernen von Bierstein
DE1521806A1 (de) * 1966-11-25 1970-08-20 Horst Arendt Verfahren zur Entmetallisierung
US3510430A (en) * 1967-05-22 1970-05-05 Diversey Corp Compositions for treating aluminum surfaces
GB1157038A (en) * 1967-09-19 1969-07-02 Lancy Lab Pickling Solutions for Removing Copper Oxides from Copper Containing Workpieces
GB1365227A (en) * 1972-05-30 1974-08-29 Halliburton Co Composition and method for removing copper containing iron oxide scales from ferrous metals
JPS5313172B2 (it) * 1973-06-14 1978-05-08
US4302246A (en) * 1980-01-03 1981-11-24 Enthone, Incorporated Solution and method for selectively stripping alloys containing nickel with gold, phosphorous or chromium from stainless steel and related nickel base alloys
DE3048083C2 (de) * 1980-12-19 1983-09-29 Ludwig 8900 Augsburg Fahrmbacher-Lutz Verfahren zur chemischen Entfernung von Oxidschichten von Gegenständen aus Titan oder Titanlegierungen
US4339282A (en) * 1981-06-03 1982-07-13 United Technologies Corporation Method and composition for removing aluminide coatings from nickel superalloys
US4425185A (en) * 1982-03-18 1984-01-10 United Technologies Corporation Method and composition for removing nickel aluminide coatings from nickel superalloys
US4563239A (en) * 1984-10-16 1986-01-07 United Technologies Corporation Chemical milling using an inert particulate and moving vessel
CH674851A5 (it) * 1987-12-01 1990-07-31 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
ITMI921421A0 (it) 1992-06-10
IT1258963B (it) 1996-03-11
GB2257395A (en) 1993-01-13
DE4120305C1 (it) 1992-08-27
GB9213053D0 (en) 1992-08-05
GB2257395B (en) 1995-11-01
US5248381A (en) 1993-09-28

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970530