ATE116690T1 - COATING AND COATING PROCESSES FOR STEAM TURBINES AND ADJACENT STEEL SURFACES. - Google Patents

COATING AND COATING PROCESSES FOR STEAM TURBINES AND ADJACENT STEEL SURFACES.

Info

Publication number
ATE116690T1
ATE116690T1 AT91915315T AT91915315T ATE116690T1 AT E116690 T1 ATE116690 T1 AT E116690T1 AT 91915315 T AT91915315 T AT 91915315T AT 91915315 T AT91915315 T AT 91915315T AT E116690 T1 ATE116690 T1 AT E116690T1
Authority
AT
Austria
Prior art keywords
coating
chromium
steel
aluminum
steam turbines
Prior art date
Application number
AT91915315T
Other languages
German (de)
Inventor
Jaakko Tenkula
Bjarne Hellman
Jorma Majava
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=ATE116690(T1) "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 ATE116690T1 publication Critical patent/ATE116690T1/en

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.
AT91915315T 1990-09-04 1991-09-03 COATING AND COATING PROCESSES FOR STEAM TURBINES AND ADJACENT STEEL SURFACES. ATE116690T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE116690T1 true ATE116690T1 (en) 1995-01-15

Family

ID=8531016

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91915315T ATE116690T1 (en) 1990-09-04 1991-09-03 COATING AND COATING PROCESSES FOR STEAM TURBINES AND ADJACENT 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
SK281564B6 (en) 2001-05-10
DZ1526A1 (en) 2004-09-13
HU212746B (en) 1996-10-28
DE69106494D1 (en) 1995-02-16
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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