HRP20120043T1 - Plasma spray method for coating excess heat tubes - Google Patents

Plasma spray method for coating excess heat tubes Download PDF

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Publication number
HRP20120043T1
HRP20120043T1 HR20120043T HRP20120043T HRP20120043T1 HR P20120043 T1 HRP20120043 T1 HR P20120043T1 HR 20120043 T HR20120043 T HR 20120043T HR P20120043 T HRP20120043 T HR P20120043T HR P20120043 T1 HRP20120043 T1 HR P20120043T1
Authority
HR
Croatia
Prior art keywords
protective layer
self
process according
thermal
weight
Prior art date
Application number
HR20120043T
Other languages
Croatian (hr)
Inventor
H�user Bodo
H�user Hendrik
Original Assignee
H�user&Co. 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 H�user&Co. GmbH filed Critical H�user&Co. GmbH
Publication of HRP20120043T1 publication Critical patent/HRP20120043T1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06Metallic material
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06Metallic material
    • C23C4/067Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18After-treatment

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Thermal spraying process for producing protective coatings on fire tubes uses a self-flowing alloy powder with large particles which is fused after spraying on to the tubes. An independent claim is included for use of self-flowing alloy powders with large particles in thermal spraying to produce protective coatings on fire tubes.

Claims (9)

1. Toplinski postupak raspršivanja za dobivanje zaštitnog sloja na metalnim stjenkama koje su podvrgnute vrućim dimnim plinovima kod postupka raspršivanja plazmom, u kojem postupku metalna legura sa svojstvom samo-tečenja se primjenjuje kao prah na metalne stjenke, naznačen time da metalna legura sa svojstvom samo-tečenja ima veličinu čestica od 90 do 180 µm, pri čemu je zaštitni sloj samo djelomično rastaljen sa neutralnim plamenom nakon što je raspršen, pri čemu je zaštitni sloj zagrijan samo do takve temperature da se izbjegne stvaranje difuzijske veze između zaštitnog sloja i osnovnog materijala, pri čemu metalna legura sa svojstvom samo-tečenja sadrži nikal kao glavni sastojak.1. Thermal spray process for obtaining a protective layer on metal walls that are subjected to hot flue gases in a plasma spray process, in which a metal alloy with self-flowing properties is applied as a powder to metal walls, characterized by the fact that the metal alloy with self-flowing properties flow has a particle size of 90 to 180 µm, wherein the protective layer is only partially melted with a neutral flame after being sprayed, wherein the protective layer is heated only to such a temperature as to avoid the formation of a diffusion bond between the protective layer and the base material, at why a metal alloy with the property of self-flowing contains nickel as the main ingredient. 2. Toplinski postupak raspršivanja prema zahtjevu 1, naznačen time da debljina sloja za zaštitni sloj nakon što je raspršen je 0.2 do 1 mm.2. Thermal sputtering process according to claim 1, characterized in that the thickness of the layer for the protective layer after sputtering is 0.2 to 1 mm. 3. Toplinski postupak raspršivanja prema zahtjevu 1 ili 2, naznačen time da debljina sloja za zaštitni sloj nakon što je raspršen je 0.3 do 0.6 mm.3. Thermal sputtering process according to claim 1 or 2, characterized in that the thickness of the layer for the protective layer after sputtering is 0.3 to 0.6 mm. 4. Toplinski postupak raspršivanja prema jednom od prethodnih zahtjeva, naznačen time da poroznost zaštitnog sloja prije nego je djelomično rastaljen je 0.5 do 3%.4. The thermal spray process according to one of the preceding claims, characterized in that the porosity of the protective layer before it is partially melted is 0.5 to 3%. 5. Toplinski postupak raspršivanja prema jednom od prethodnih zahtjeva, naznačen time da korišteni prah je metalna legura sa svojstvom samo-tečenja koja sadrži barem sljedeće sastojke: 77.35% težinski Ni; 11.5% težinski Cr; 0.65% težinski C; 2.5% težinski B; 3.75% težinski Si; 4.25% težinski Fe.5. The thermal spray process according to one of the previous claims, characterized in that the powder used is a metal alloy with self-flowing properties that contains at least the following ingredients: 77.35% Ni by weight; 11.5% Cr by weight; 0.65% by weight of C; 2.5% by weight of B; 3.75% by weight Si; 4.25% Fe by weight. 6. Toplinski postupak raspršivanja prema jednom od prethodnih zahtjeva, naznačen time da je tvrdoća zaštitnog sloja nakon što je djelomično rastaljen 48 do 52 HRC.6. The thermal spray process according to one of the preceding claims, characterized in that the hardness of the protective layer after it is partially melted is 48 to 52 HRC. 7. Toplinski postupak raspršivanja prema jednom od prethodnih zahtjeva, naznačen time da se prah zagrijava na temperaturu od približno 25°C prije nego što se nanosi raspršivanjem.7. The thermal spraying process according to one of the preceding claims, characterized in that the powder is heated to a temperature of approximately 25°C before it is applied by spraying. 8. Toplinski postupak raspršivanja prema jednom od prethodnih zahtjeva, naznačen time da se postupak plazma raspršivanja koristi za raspršivanje zaštitnog sloja na metalne stjenke cijevi kotla koje su izložene vrućim dimnim plinovima.8. The thermal spray process according to one of the previous claims, characterized in that the plasma spray process is used to spray the protective layer on the metal walls of the boiler tubes that are exposed to hot flue gases. 9. Uporaba praha izrađenog od metalne legure sa svojstvom samo-tečenja koji ima veličinu čestica od 90 do 180 µm za postupak toplinskog raspršivanja za dobivanje zaštitnog sloja na metalnim stjenkama koje su podvrgnute vrućim dimnim plinovima, prema jednom od prethodnih zahtjeva, naznačena time da je zaštitni sloj samo djelomično rastaljen sa neutralnim plamenom nakon što je raspršen sa postupkom plazma raspršivanja, pri čemu je zaštitni sloj zagrijan samo do takve temperature da se izbjegne stvaranje difuzijske veze između zaštitnog sloja i osnovnog materijala, pri čemu metalna legura sa svojstvom samo-tečenja sadrži nikal kao glavni sastojak.9. The use of a powder made of a metal alloy with a self-flowing property having a particle size of 90 to 180 µm for a thermal spraying process to obtain a protective layer on metal walls subjected to hot flue gases, according to one of the preceding claims, characterized by the fact that the protective layer only partially melted with a neutral flame after being sprayed with a plasma spraying process, the protective layer being heated only to such a temperature as to avoid the formation of a diffusion bond between the protective layer and the base material, the self-flowing metal alloy comprising nickel as the main ingredient.
HR20120043T 2007-04-27 2012-01-13 Plasma spray method for coating excess heat tubes HRP20120043T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007020420A DE102007020420B4 (en) 2007-04-27 2007-04-27 Plasma spraying process for coating superheater pipes and using a metal alloy powder

Publications (1)

Publication Number Publication Date
HRP20120043T1 true HRP20120043T1 (en) 2012-02-29

Family

ID=39400433

Family Applications (1)

Application Number Title Priority Date Filing Date
HR20120043T HRP20120043T1 (en) 2007-04-27 2012-01-13 Plasma spray method for coating excess heat tubes

Country Status (7)

Country Link
EP (1) EP1985722B1 (en)
AT (1) ATE530676T1 (en)
DE (1) DE102007020420B4 (en)
DK (1) DK1985722T3 (en)
ES (1) ES2375172T3 (en)
HR (1) HRP20120043T1 (en)
PL (1) PL1985722T3 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642519A (en) * 1969-03-21 1972-02-15 Us Air Force Method for the development of hard coat seal surfaces
US4192672A (en) * 1978-01-18 1980-03-11 Scm Corporation Spray-and-fuse self-fluxing alloy powders
US4692305A (en) * 1985-11-05 1987-09-08 Perkin-Elmer Corporation Corrosion and wear resistant alloy
EP0223135A1 (en) * 1985-11-05 1987-05-27 The Perkin-Elmer Corporation Corrosion resistant self-fluxing alloys for thermal spraying
DE4220063C1 (en) 1992-06-19 1993-11-18 Thyssen Guss Ag Process for producing a protective layer on metallic walls exposed to hot gases, in particular flue gases
DE19638228A1 (en) * 1996-08-22 1998-02-26 Castolin Sa Method for producing a corrosion-resistant connection of pipes
WO2006099869A1 (en) * 2005-03-21 2006-09-28 Gerstenberg & Agger A/S A resistant hard coating

Also Published As

Publication number Publication date
EP1985722A3 (en) 2009-04-01
EP1985722A2 (en) 2008-10-29
DE102007020420B4 (en) 2011-02-24
ATE530676T1 (en) 2011-11-15
EP1985722B1 (en) 2011-10-26
ES2375172T3 (en) 2012-02-27
PL1985722T3 (en) 2012-03-30
DK1985722T3 (en) 2012-02-06
DE102007020420A1 (en) 2008-10-30

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