EP1469096A1 - Verfahren zur Herstellung von Antikorrosionsschutzüberzügen für Kühlschirme in Feuerkammern - Google Patents
Verfahren zur Herstellung von Antikorrosionsschutzüberzügen für Kühlschirme in Feuerkammern Download PDFInfo
- Publication number
- EP1469096A1 EP1469096A1 EP04460006A EP04460006A EP1469096A1 EP 1469096 A1 EP1469096 A1 EP 1469096A1 EP 04460006 A EP04460006 A EP 04460006A EP 04460006 A EP04460006 A EP 04460006A EP 1469096 A1 EP1469096 A1 EP 1469096A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phase
- mpa
- purity
- base
- chambers
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 14
- 238000000576 coating method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 238000007750 plasma spraying Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011253 protective coating Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000012300 argon atmosphere Substances 0.000 claims description 2
- 230000000638 stimulation Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052786 argon Inorganic materials 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 1
- 230000003746 surface roughness Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000002817 coal dust Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- 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
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C4/134—Plasma 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
Definitions
- the invention relates to the method of manufacturing Anti-corrosion coating of the cooling screens in fire chambers.
- the object of the present invention is to create a method of making the anti-corrosion protective coating on the new elements of the cooling umbrellas which are installed in the boiler located directly in the area of action of the furnace heated with coal dust.
- the object of the present invention solves this problem.
- the essence of the method according to the invention is that in the first phase the radiation abrasion of the substrate to purity Sa 3 and roughness Rz from 35 to 100 microns is carried out at compressed air pressure of 5 MPa to 12 MPa, in the second phase in The plasma spraying process uses aluminum powder with a purity of 99.5 Al and granulation from 40 ⁇ m to 200 ⁇ m - 120 ⁇ m at a spraying distance of 5 mm to 20 mm - most conveniently 10 ⁇ m, voltage U - from 45 to 70 V - most favorable 58 V, current I from 350 to 420 A in the argon atmosphere from 2000 I / h to 3000 I / h and the pressure of the plasma gases P - from 1.5 to 4 MPa - most advantageously 3 Mpa and in the third phase the completion is completed upper cover layer before the gas high temperature corrosion in the form of aluminum oxide (Al 2 O 3 ) made resistant and the stimulation of the diffusion Al to underlay by additional heating in the temperature
- the anticorrosive coating of the cooling screens in the fireboxes heated with coal dust allows a good adhesion to the steel cooling screen in the boiler with a binding force of at least 40 MPa.
- This coating can have a thickness of 50 ⁇ m to 400 ⁇ m and is characterized by a low porosity.
- An essential property and at the same time advantage of this method of the invention is the use of inexpensive coating material such as aluminum and the selection of the corresponding parameters for the three-phase processing of plasma spraying with the production in the third phase of a two-layer coating, the upper cover layer of which additionally forms an aluminum protective surface in the shape Aluminum oxide (Al 2 O 3 ) with protective high anti-corrosion parameters under extreme conditions that prevail in the boiler firing heated with coal dust.
- the finished upper aluminum Resistant to corrosion before high gas temperature made and to obtain the maximum diffusion Al to a base additional heating at 450 ° C within 5 hours carried out.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Coating By Spraying Or Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Building Environments (AREA)
Abstract
Description
Claims (1)
- Das Verfahren der Anfertigung von Antikorrosionsschutzüberzug der die Unterlage bildende Kühlschirme in Feuerkammern, durch Plasmaspritzen dieser Kühlschirme mit Überzugsmaterial, dadurch gekennzeichnet, daß in derersten Phase die Strahlungs-Abreibung der Unterlage zu Reinheit Sa 3 und Rauhigkeit Rz von 35 bis 100 µm bei Druck der Druckluft von 5 MPa bis 12 Mpa durchgeführt wird, in der zweiten Phase im Verfahren des Plasmaspritzens wird Aluminiumpulver mit Reinheit 99,5 Al und Granulation von 40 µm bis 200 µm - vorteihaft 120 µm bei Spritzdistanz von 5 mm bis 20 mm - am günstigsten 10 mm angewendet, Spannung U - von 45 bis 70 V - am günstigsten 58 V, Strom I von 350 bis 420 A in der Argon Atmosphäre von 2000 I/h bis 3000 I/h und dem Druck der Plasmagase P - von 1,5 bis 4 MPa - am günstigsten 3 MPa, und in der dritten Phase wird die fertiggestellte obere Deckschicht vor der Gashochtemperatur Korrosion in die Gestalt Aluminiumoxid (Al2O3) widerstandsfähig gemacht und das Anregen der Diffusion Al zu der Unterlage wird durch zusätzliche Erhitzung in der Temperatur von 350 bis 650°C innerhalb von 4 bis 8 h durchgeführt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL35976403 | 2003-04-18 | ||
| PL359764A PL200773B1 (pl) | 2003-04-18 | 2003-04-18 | Sposób wykonywania antykorozyjnej powłoki na ekranach grzewczych komór paleniskowych |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1469096A1 true EP1469096A1 (de) | 2004-10-20 |
| EP1469096A9 EP1469096A9 (de) | 2005-03-23 |
| EP1469096B1 EP1469096B1 (de) | 2006-01-18 |
Family
ID=32906746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04460006A Expired - Lifetime EP1469096B1 (de) | 2003-04-18 | 2004-04-09 | Verfahren zur Herstellung von Antikorrosionsschutzüberzügen für Kühlschirme in Feuerkammern |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1469096B1 (de) |
| AT (1) | ATE316159T1 (de) |
| DE (1) | DE502004000253D1 (de) |
| EA (1) | EA007044B1 (de) |
| PL (1) | PL200773B1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL239975B1 (pl) * | 2020-02-17 | 2022-01-31 | Centrum Badawcze Powlok Ochronnych Cebapo Spolka Z Ograniczona Odpowiedzialnoscia | Sposób zabezpieczania przed degradacją powierzchni zwłaszcza ekranów grzewczych kotłów energetycznych z wykorzystaniem powłok z nanomateriałów natryskiwanych metodą plazmową oraz linia technologiczna do realizacji tego sposobu |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325383A1 (de) * | 1993-07-23 | 1995-01-26 | Juergen Dipl Ing Lang | Verfahren zur Herstellung hitzebeständiger Oberflächen mit hoher Wärmeemission und -absorption |
| DE19603515C1 (de) * | 1996-02-01 | 1996-12-12 | Castolin Sa | Spritzwerkstoff auf Eisenbasis zum Herstellen einer korrosionsbeständigen Beschichtung, Herstellungsverfahren für die Beschichtung sowie Verwendung der Schicht |
| DE19704976A1 (de) * | 1997-01-29 | 1998-07-30 | Siemens Ag | Gasturbinenanlage mit einem mit Keramiksteinen ausgekleideten Brennkammergehäuse |
| EP0913640A2 (de) * | 1997-10-31 | 1999-05-06 | Robert Bosch Gmbh | Brennkammer, insbesondere für Gas-Warmwasserbereiter- und Gas-Heizungsgerätebrenner |
| US6485792B1 (en) * | 1999-08-27 | 2002-11-26 | General Electric Company | Endurance of NiA1 coatings by controlling thermal spray processing variables |
-
2003
- 2003-04-18 PL PL359764A patent/PL200773B1/pl not_active IP Right Cessation
-
2004
- 2004-04-09 EP EP04460006A patent/EP1469096B1/de not_active Expired - Lifetime
- 2004-04-09 AT AT04460006T patent/ATE316159T1/de not_active IP Right Cessation
- 2004-04-09 DE DE502004000253T patent/DE502004000253D1/de not_active Expired - Fee Related
- 2004-04-14 EA EA200400440A patent/EA007044B1/ru not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325383A1 (de) * | 1993-07-23 | 1995-01-26 | Juergen Dipl Ing Lang | Verfahren zur Herstellung hitzebeständiger Oberflächen mit hoher Wärmeemission und -absorption |
| DE19603515C1 (de) * | 1996-02-01 | 1996-12-12 | Castolin Sa | Spritzwerkstoff auf Eisenbasis zum Herstellen einer korrosionsbeständigen Beschichtung, Herstellungsverfahren für die Beschichtung sowie Verwendung der Schicht |
| DE19704976A1 (de) * | 1997-01-29 | 1998-07-30 | Siemens Ag | Gasturbinenanlage mit einem mit Keramiksteinen ausgekleideten Brennkammergehäuse |
| EP0913640A2 (de) * | 1997-10-31 | 1999-05-06 | Robert Bosch Gmbh | Brennkammer, insbesondere für Gas-Warmwasserbereiter- und Gas-Heizungsgerätebrenner |
| US6485792B1 (en) * | 1999-08-27 | 2002-11-26 | General Electric Company | Endurance of NiA1 coatings by controlling thermal spray processing variables |
Also Published As
| Publication number | Publication date |
|---|---|
| EA007044B1 (ru) | 2006-06-30 |
| PL200773B1 (pl) | 2009-02-27 |
| EP1469096B1 (de) | 2006-01-18 |
| ATE316159T1 (de) | 2006-02-15 |
| DE502004000253D1 (de) | 2006-04-06 |
| EA200400440A1 (ru) | 2004-12-30 |
| EP1469096A9 (de) | 2005-03-23 |
| PL359764A1 (en) | 2004-11-02 |
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