DE2849745A1 - PROTECTIVE COVER FOR HEAT-EXPOSED PARTS THAT ARE CREATED BY PLASMA OR HEAT SPRAY APPLICATION - Google Patents
PROTECTIVE COVER FOR HEAT-EXPOSED PARTS THAT ARE CREATED BY PLASMA OR HEAT SPRAY APPLICATIONInfo
- Publication number
- DE2849745A1 DE2849745A1 DE19782849745 DE2849745A DE2849745A1 DE 2849745 A1 DE2849745 A1 DE 2849745A1 DE 19782849745 DE19782849745 DE 19782849745 DE 2849745 A DE2849745 A DE 2849745A DE 2849745 A1 DE2849745 A1 DE 2849745A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- percent
- plasma
- mass
- spray application
- 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.)
- Withdrawn
Links
- YNBADRVTZLEFNH-UHFFFAOYSA-N methyl nicotinate Chemical compound COC(=O)C1=CC=CN=C1 YNBADRVTZLEFNH-UHFFFAOYSA-N 0.000 title claims description 9
- 230000001681 protective effect Effects 0.000 title claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000011253 protective coating Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/04—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler and characterised by material, e.g. use of special steel alloy
-
- 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
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/025—Devices and methods for diminishing corrosion, e.g. by preventing cooling beneath the dew point
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
PATENTANWALT ^ ^PATENT ADVOCATE ^ ^
DiPL.-PHYS. DR. WALTHER JUNIUS 3 HannoverDiPL.-PHYS. DR. WALTHER JUNIUS 3 Hanover
13. November 1978November 13, 1978
Dr. J/RDr. J / R
Meine Akte: 2488My file: 2488
SKODA, oborov^ podnik, PlzenSKODA, oborov ^ podnik, Plzen
Schutzüberzug für wärmebeanspruchte Teile, der durch Plasma- oder Hitzespritzauftrag erzeugt wirdProtective coating for parts exposed to high temperatures, applied by plasma or heat spray application is produced
Die Erfindung betrifft Schutzüberzüge, die durch einen Plasma- oder Hitzespritzauftrag ausgeführt werden, für wärmebeanspruchte Teile, besonders für Brennkammern von Dampfkesseln.The invention relates to protective coatings carried out by plasma or heat spray application for Heat-stressed parts, especially for combustion chambers of steam boilers.
Zur Sicherstellung des Wandschutzes von Brennkammern bei Dampfkesseln gegen Korrosion werden an die Kesselrohre Dorne aus rostfreiem Stahl angeschweißt, auf die eine Keramikschicht aufgetragen wird. Diese Schutzart erfordert einen großen Arbeitsaufwand und verlangt in regelmäßigen Zeitabständen eine Erneuerung des Schutzauftrages. To ensure the wall protection of combustion chambers in steam boilers against corrosion, the boiler tubes Stainless steel spikes welded on to which a ceramic layer is applied. This degree of protection requires a lot of work and requires a renewal of the protection order at regular intervals.
909821/0615909821/0615
Diese Kachteile beseitigt die Erfindung. Es ist die Aufgabe der Erfindung, einen dauerhaften Wandscnutz der Brennkammern gegen Korrosion in Form eines leictit aufbringbaren Schutzüberzuges zu schaffen.The invention eliminates these tile parts. It is the object of the invention to provide permanent wall protection the combustion chambers against corrosion in the form of a leictit To create a protective coating that can be applied.
Das Viesen der Erfindung besteht darin, daß der Schutzüberzug, der auf das Grundmaterial der Brennkammern durch einen Plasma- oder Hitzespritzauftrag als Überzug aufgetragen wird, außer Nickel 0,1 bis 20 Masseprozent Chrom, 0,1 bis 7 Masseprozent Silizium, 0;1 bis 5 Masseprozent Bor und Spuren bis 8 Masseprozent Eisen enthält und/oder daß der Schutzüberzug ferner Spuren bis 5 Masseprozent Kobalt, Spuren bis 5 Masseprozent Molybdän, Spuren bis 5 Masseprozent Wolfram und/ oder Spuren bis 5 Masseprozent Kupfer auf v/eist.The Viesen of the invention is that the protective coating, which is applied to the base material of the combustion chambers by a plasma or heat spray application as a coating, except for nickel 0.1 to 20 percent by weight of chromium, 0.1 to 7 percent by weight of silicon, 0 ; 1 to 5 mass percent boron and traces up to 8 mass percent iron and / or that the protective coating also contains traces up to 5 mass percent cobalt, traces up to 5 mass percent molybdenum, traces up to 5 mass percent tungsten and / or traces up to 5 mass percent copper.
Durch Anwendung von Plasma- und Hitzespritzaufträgen auf wärmebeanspruchtem Material, besonders bei Brennkammern, entsteht an der Oberfläche des Grundmaterials ein zufriedenstellender Korrosionsschutz. Der wirksame Korrosionsschutz durch einen Plasma- oder Hitzespritzauftrag weist im Bereich der Betriebstemperaturen, im Vergleich mit dem keramischen Schutzauftrag, eine mehrfach längere Lebensdauer auf. Durch Anwendung des angeführten Schutzüberzuges bei Brennkammern von Dampfkesseln wird der Arbeitsaufwand beträchtlich herabgesetzt, das Dornmaterial und der keramische Überzug werden erspart und auch das Abstellen der Kessel zwecks Erneuerung des Keramiküberzuges wird beseitigt. Durch diese Beseitigung des Kesselausfalles wird die Leistung des energetischenBy using plasma and heat spray applications on material exposed to heat, especially in the case of combustion chambers, A satisfactory corrosion protection is created on the surface of the base material. The effective one Corrosion protection through a plasma or heat spray application shows a multiple in the operating temperature range compared to the ceramic protective coating longer life. By using the protective coating mentioned in the combustion chambers of steam boilers the workload is reduced considerably, the mandrel material and the ceramic coating are saved And also the shutdown of the boiler for the purpose of renewing the ceramic coating is eliminated. Through this elimination of the boiler failure, the performance of the energetic
903821 /06 15903821/06 15
Blocks vergrößert. Außerdem wird durch. Herabsetzung der Wärmeträgheit der Verbrennungskammern ein rascheres Anfahren der Kessel auf Yo!leistung erzielt.Blocks enlarged. In addition, through. Reduction of the thermal inertia of the combustion chambers a faster Starting the boiler at Yo! Power achieved.
Als Beispiel des Materialschutzes bei Brennkammern durch einen Plasmaspritzauftrag sei das Beispiel der Rohre eines 60-t-Dampfkesseis angeführt. Die Rohre vom Durchmesser 0 76 mm mit einer Wanddicke von 5 mm aus Material der Norm ÖSH" 4-12 022.1 wurden mit einem Plasmaspritzauftrag: von der Dicke 0^4- bis Oy5 mm überzogen. Dieser enthielt außer Nickel 10,3 Masseprozent Chrom, 2,5 Masseprozent Silizium, 2,8 Masseprozent Bor und 5j1 Masseprozent Eisen.As an example of material protection in combustion chambers by means of a plasma spray application, the example of the pipes of a 60 t steam boiler is given. The tubes with a diameter of 76 mm and a wall thickness of 5 mm made of material from the ÖSH "4-12 022.1 standard were coated with a plasma spray application: with a thickness of 0 ^ 4- to 0 y 5 mm . This contained 10.3 percent by weight, in addition to nickel Chromium, 2.5 mass percent silicon, 2.8 mass percent boron and 5j1 mass percent iron.
Sin ähnliches Beispiel bildet der Hitzespritzauftrag der Roiire eines 50-t-Dampfkesseis. Die Rohre vom Durchmesser 0 76 mm und mit einer Dicke von 5 nun aus Material der Norm OSN 4-15 110.1, wurden mit einem Hitze spritzauftrag überzogen, der außer Nickel 13,2 Masseprozent Chrom, 2r7 Masseprozent Silizium, 2r6 Masseprozent Bor, 3j8 Masseprozent Eisen, 3j2 Masseprozent Wolfram, 2,8 Masseprozent Molybdän und 1f3 Masseprozent Kupfer enthielt.In a similar example, the heat spray application forms the roiire of a 50 t steam boiler. The tubes with a diameter of 76 mm and a thickness of 5 now made of material of the standard OSN 4-15 110.1, were coated with a heat spray application, which apart from nickel 13.2 percent by mass chromium, 2 r 7 mass percent silicon, 2 r 6 mass percent Boron, 3j8 mass percent iron, 3j2 mass percent tungsten, 2.8 mass percent molybdenum and 1 f 3 mass percent copper.
9G9821/Q6159G9821 / Q615
Claims (2)
dadurch gekennzeichnet,1. Protective coating for files subject to high temperatures, which is created by a plasma or heat spray application,
characterized,
dadurch gekennzeichnet,2. Protective cover according to claim 1,
characterized,
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS777660A CS196846B1 (en) | 1977-11-22 | 1977-11-22 | Protective two-layered coat for heat-stressed parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2849745A1 true DE2849745A1 (en) | 1979-05-23 |
Family
ID=5426156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782849745 Withdrawn DE2849745A1 (en) | 1977-11-22 | 1978-11-16 | PROTECTIVE COVER FOR HEAT-EXPOSED PARTS THAT ARE CREATED BY PLASMA OR HEAT SPRAY APPLICATION |
Country Status (5)
| Country | Link |
|---|---|
| CS (1) | CS196846B1 (en) |
| DE (1) | DE2849745A1 (en) |
| FR (1) | FR2409324A3 (en) |
| GB (1) | GB2009233A (en) |
| SE (1) | SE7812004L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387140A (en) * | 1979-06-28 | 1983-06-07 | Toyota Jidosha Kogyo Kabushiki Kaisha | Slide member |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4814024A (en) * | 1987-03-30 | 1989-03-21 | Owens-Illinois Glass Container Inc. | Nickel base alloy glass shaping member |
| DE3825472A1 (en) * | 1988-07-27 | 1990-02-01 | Ver Kesselwerke Ag | STEAM GENERATING SYSTEM WITH HEAT EXCHANGER TUBES |
| KR101445953B1 (en) * | 2010-02-01 | 2014-09-29 | 크루서블 인텔렉츄얼 프라퍼티 엘엘씨. | Coating comprising nickel based alloy, device comprising the coating, and methods for making the same |
-
1977
- 1977-11-22 CS CS777660A patent/CS196846B1/en unknown
-
1978
- 1978-11-16 GB GB7844862A patent/GB2009233A/en not_active Withdrawn
- 1978-11-16 DE DE19782849745 patent/DE2849745A1/en not_active Withdrawn
- 1978-11-21 SE SE7812004A patent/SE7812004L/en unknown
- 1978-11-22 FR FR7833010A patent/FR2409324A3/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387140A (en) * | 1979-06-28 | 1983-06-07 | Toyota Jidosha Kogyo Kabushiki Kaisha | Slide member |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7812004L (en) | 1979-05-23 |
| FR2409324B3 (en) | 1980-12-05 |
| FR2409324A3 (en) | 1979-06-15 |
| GB2009233A (en) | 1979-06-13 |
| CS196846B1 (en) | 1980-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |