DE69106494D1 - COATING AND COATING METHOD FOR STEAM TURBINES AND NEIGHBORHOOD STEEL SURFACES. - Google Patents

COATING AND COATING METHOD FOR STEAM TURBINES AND NEIGHBORHOOD STEEL SURFACES.

Info

Publication number
DE69106494D1
DE69106494D1 DE69106494T DE69106494T DE69106494D1 DE 69106494 D1 DE69106494 D1 DE 69106494D1 DE 69106494 T DE69106494 T DE 69106494T DE 69106494 T DE69106494 T DE 69106494T DE 69106494 D1 DE69106494 D1 DE 69106494D1
Authority
DE
Germany
Prior art keywords
coating
chromium
steel
neighborhood
aluminum
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.)
Revoked
Application number
DE69106494T
Other languages
German (de)
Other versions
DE69106494T2 (en
Inventor
Jaakko Tenkula
Bjarne Hellman
Jorma Majava
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telatek Oy
Original Assignee
Telatek Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8531016&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69106494(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Telatek Oy filed Critical Telatek Oy
Application granted granted Critical
Publication of DE69106494D1 publication Critical patent/DE69106494D1/en
Publication of DE69106494T2 publication Critical patent/DE69106494T2/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • 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
    • F01D25/007—Preventing corrosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • External Artificial Organs (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Vehicle Body Suspensions (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The present invention relates to the protection of the casing, division planes, piping, superheaters and other steel parts of a steam turbine which are subjected in a turbine plant to some corrosive and erosive wear caused by steam, the coating comprising a coating layer produced by the thermal spraying of a steel, alloyed amply with chromium and aluminum, which during the coating process oxidizes strongly in the spray, whereby large amounts of chromium and aluminum oxides are formed, which will remain inside the coating, surrounded by a steel matrix, and after the coating process there will form on the surface of the coating layer, under the oxidizing action of air, a dense chromium and aluminum oxide layer. Another object of the invention is a related coating method.
DE69106494T 1990-09-04 1991-09-03 COATING AND COATING METHOD FOR STEAM TURBINES AND NEIGHBORHOOD STEEL SURFACES. Revoked DE69106494T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI904369A FI88935C (en) 1990-09-04 1990-09-04 Process for coating a steam turbine and associated steel surfaces
PCT/FI1991/000269 WO1992004480A1 (en) 1990-09-04 1991-09-03 A coating, and a coating method, for a steam turbine and adjoining steel surfaces

Publications (2)

Publication Number Publication Date
DE69106494D1 true DE69106494D1 (en) 1995-02-16
DE69106494T2 DE69106494T2 (en) 1995-05-11

Family

ID=8531016

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69106494T Revoked DE69106494T2 (en) 1990-09-04 1991-09-03 COATING AND COATING METHOD FOR STEAM TURBINES AND NEIGHBORHOOD STEEL SURFACES.

Country Status (13)

Country Link
EP (1) EP0500854B1 (en)
AT (1) ATE116690T1 (en)
CA (1) CA2067727A1 (en)
CZ (1) CZ281667B6 (en)
DE (1) DE69106494T2 (en)
DZ (1) DZ1526A1 (en)
ES (1) ES2066464T3 (en)
FI (1) FI88935C (en)
HU (1) HU212746B (en)
PL (1) PL167643B1 (en)
RU (1) RU2085612C1 (en)
SK (1) SK281564B6 (en)
WO (1) WO1992004480A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI96970C (en) * 1994-08-09 1996-09-25 Telatek Oy Method for rehabilitating steel surfaces
GB201106276D0 (en) * 2011-04-14 2011-05-25 Rolls Royce Plc Annulus filler system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1004964A (en) * 1972-05-30 1977-02-08 Union Carbide Corporation Corrosion resistant coatings and process for making the same
US3864093A (en) * 1972-11-17 1975-02-04 Union Carbide Corp High-temperature, wear-resistant coating

Also Published As

Publication number Publication date
PL167643B1 (en) 1995-10-31
EP0500854A1 (en) 1992-09-02
HU9201467D0 (en) 1992-09-28
RU2085612C1 (en) 1997-07-27
ES2066464T3 (en) 1995-03-01
FI904369A0 (en) 1990-09-04
CA2067727A1 (en) 1992-03-05
WO1992004480A1 (en) 1992-03-19
CZ281667B6 (en) 1996-12-11
DE69106494T2 (en) 1995-05-11
ATE116690T1 (en) 1995-01-15
SK281564B6 (en) 2001-05-10
DZ1526A1 (en) 2004-09-13
HU212746B (en) 1996-10-28
FI904369A (en) 1992-03-05
HUT60792A (en) 1992-10-28
EP0500854B1 (en) 1995-01-04
FI88935C (en) 1993-07-26
FI88935B (en) 1993-04-15
CS271591A3 (en) 1992-04-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation