CS196846B1 - Protective two-layered coat for heat-stressed parts - Google Patents
Protective two-layered coat for heat-stressed parts Download PDFInfo
- Publication number
- CS196846B1 CS196846B1 CS777660A CS766077A CS196846B1 CS 196846 B1 CS196846 B1 CS 196846B1 CS 777660 A CS777660 A CS 777660A CS 766077 A CS766077 A CS 766077A CS 196846 B1 CS196846 B1 CS 196846B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- weight
- protective
- weight percent
- percent
- heat
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 title claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 239000010703 silicon Substances 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims abstract 2
- 229910052802 copper Inorganic materials 0.000 claims abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010937 tungsten Substances 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 239000011253 protective coating Substances 0.000 abstract description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052796 boron Inorganic materials 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- -1 nickel silicates Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000007751 thermal spraying Methods 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)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (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)
Abstract
Description
Vynález řeší ochranné povlaky pro použití při ochraně tepelně namáhaných eoučáetí, zejména spalovacích komor parních kotlá plazmovým nebo žárovým nástřikem.The present invention provides protective coatings for use in the protection of thermally stressed surfactants, in particular combustion chambers of steam boilers by plasma or heat spraying.
Pro zajištění ochrany stěn spalovacích komor parních kotlá proti korozi jsou na kotlové trubky navařovány trny z nerezavějící oceli, na kterýeh je keramický omaz. Uvedený zpásob ochrany je velice pracný a předpokládá obnovu keramického omazu v pravidelných cyklech.In order to protect the walls of the combustion chambers of the steam boilers against corrosion, stainless steel mandrels are welded onto the boiler tubes, on which the ceramic is coated. This method of protection is very laborious and assumes renewal of ceramic smearing in regular cycles.
Jedním ze známých způsobů ochrany ocelových součástí je podle čl. patentu č. 130 001 žárový nástřik vrstvy niklu v tloušťce 50 až 200 £im, na kterou se musí nejpozději do 5 minut nanést žárovým stříkáním vrstva hliníku ve stejné nebo větší tloušťce, než je tloušťka niklové vrstvy. Tento ochranný povlak je použitelný do teploty 1200 °C na vzduchu a v atmosféře obsahující sloučeniny síry.One known method of protecting steel components is, in accordance with Art. No. 130,001, a thermal spraying of a nickel layer of 50 to 200 .mu.m thickness, to which an aluminum layer of equal or greater than the thickness must be applied by hot spraying within 5 minutes. nickel layers. This protective coating is applicable up to 1200 ° C in air and in an atmosphere containing sulfur compounds.
Někdy je také využíváno ochranných povlaků ze slitin Ni Cr v poměru 80 : 20.Occasionally, 80: 20 Ni Cr protective coatings are also used.
Při zajištění ochrany proti korozi za vysokých teplot a proti žáru a vysokým teplotám nemají uvedené ochranné povlaky dostatečnou odolnost. Nejsou zcela odolné proti sirníkové korozi a nezajišťují samotěsnicí účinek ochranného povlaku.While providing protection against corrosion at high temperatures and against heat and high temperatures, these protective coatings do not have sufficient resistance. They are not completely resistant to sulfide corrosion and do not provide the self-sealing effect of the protective coating.
- 2 . Nevýhody . stávající- ochrany stěn spalovacích komor řeší dvouvrstvý ochranný povlak podle vynálezu, jehož podstata spočívá v tom, že obsahuje v - první vrstvě .70 až 90 hmotnostních procent niklu a 10 až 30 hmotnostních procent mrom^ vyznačený tím, že druhá vrstva kromě niklu obsahuje 0,1 až 7 . hmotnosmích proce«t toem^u, 0,1 až 5 hmot.nostních. procent boru, stopy až .8 hmotnostních procent železa, stopy až 5 hmotnostních procent kobalte, stopy až 5 hmotnostních procent molybdenu, stopy až'5 hmotnostních - procent wolframu a stopy až 5 hmotnostních procent mědi.- 2. Disadvantages. stávající- protection of the combustion chamber walls solves two-layer protective coating according to the invention whose principle consists in that it comprises - a first layer of .70 to 90 HMO SAFETY t I C hp rocent nickel and 10-30 weight p rocent mrom ^ characterized in that d ruh and a layer of n except i KLU containing 0, 1 to 7 hmotnosmích ro p e c «t ^ u There are three different, from 0.1 to 5 hmot.nostních. p rocent boron hundred py to .8 weight percent Iron, Y and Z tracks 5 weight percent cobalt, py hundred to about 5 weight percent molybdenum, traces až'5 weight - percent tungsten, and from traces up to 5 weight percent of s c h m edi .
Použitím ochranných plazmových a žárových nástřiků, na tepelně.namáhaný materiál, zejména spalovacích komo^ dojde k vytvoření vyhovující korozní ochraně na povrchuzákla<3ního materiálu, přičemž účinná korozní ochrana plazmovým nebo žňovým nástřikem má v rozsah - pracovních teplot ve srovnání s . kerami.ckým omazem několikanásobně větší životnost. Použitím uvedené ochrany materiálu spalovacích komor parních kotlů dojde k podstatnému snížení pracnosti. při výrobě totl^ . úspoře materiálu trnů, úspoře keramického omazu a odstraní se odstavování parních kotlů z důvodů opravy omazu. Odstraněním výpadků kotlů dojde - ke zvýšení výkonu energetických bloků. Snížením tepelné setrvačnosti. spalovacích komor je možné dosáhnout rychlejáího najíždění kotlů na plný výkon. APPLICATION u m pl protective azmových žárovýc h and coatings, te p l e n mater ial of .namáhaný particular spa ovacíc h l d ^ oj chamber d e k y y hov formation in the esophagus at I Cor Ozni protection at povrchuzákla < 3ního mater ial for par orozn routine or effective to also guarantee protection of lazmovým not žňovým b n a m em with tricks and scope - W ORK Ch te p lot compared. kerami.c to YM Omaha EK n o L b ikanáso some sentences, lifetime. Using d Uve enhanced protection material combustion chambers of steam boilers, significantly reducing labor. It runs at annual totl ^. S u e of the mater heehaw lu mandrels S u e of the ceramic Omaha and removes steam boiler shutdowns for repair Omaha. The elimination of boiler failures will increase the output of the power units. By reducing the thermal inertia No. society. spalovacíc ventricle can be H E D axes and move rapidly and l s EJA íždě it approached the boiler at full power.
Použitím- ďvouvrstvého.ochranného nástřiku dojde ke zvýšení přilnavosti ochranného povlaku k zákLatotau materiálu. V krycí vrstvě ochranného povlaku vzniknou -za podmínek provozu ve . spalovacích komorách silikáty niklu a oxidy chrómu, které . plni velmi účinně funkci protioxifotaí clony.Using w i T he - bilayer eh o.ochranné h of He and st iku d d e drawbar to increase with EN even when the adherence of the protective coating material zákLatotau. In the covering and the layer of protective coating -for arise in operating conditions. combustion chambers nickel silicates and chromium oxides, which. I filled in l EFFECTIVE LV function of protioxifotaí aperture.
Ochranný .' pov^k .podle protahu vyn&ezu má výhodné uplatněný . hlavně v těch . případech, ' kdy jsou požadovány účinky ^vlak^ jako protioxidační clony . a nejsou zvláště . vysoké ^^avky na ' ochranné účinky povlaku, jako tepelné clony. O protective. ' pov ^ k dl .po e protahu VYN & Cutting is the preferred epsilon realized. mainly vt ch. The situations ech d, 'd y are the P and O of alkylated EFFECTIVE d nk ^ y ^ train as anti-oxidation aperture. and not of esp A ST. characterized with Ké ^^ avky to 'protective coating, as a thermal barrier.
Vynález je bliže objasněn ' na uvedeném příkladu provedení: You EZ n and l b where b, EO clearly n 'at said d s m comm en la u d p rove d en I:
Příklad .Example.
Příkladem je žárový nást&k trubek 50 t parního kotle. Na trubky zdrsněné tryskáním 0 76 mm tloušťky stěny 5 mm byl proveílen žárový nástřik, který Obsahoval v pofólafové vrstvě o tloušťce 0,09 až 0,13 mm kromě niklu 17>3 . hmotnostech procent chrómu a v - krycí vrstvě o ťloušťce 0,35 až 0,48 mm ' obsahovak kromě . niklu 13,2 hmotnostech procent chrómu, 2,7 hmotnostech procent křemíku, 2,6 'hmotnostních procent boru, 3,8 hmotnostem procent že^za, EXAMPLE Ikla em d is from Aro instru & tubing 50 to t p arního boiler. On the pipe is roughened by blasting 0 76 mm wall thickness 5 mm would y l proveílen tor for injection that contained in pofólafové layer thickness 0.09 to 0.13 mm except ni LU 17> third mass P rocent chromium, and - a covering layer of a thickness of 0, 35-0, 48 mm x obsahovak apart. nickel 1 3, P 2 Weight rocent chromium, 2.7 percent silicon masses, 2, 6 'b Oru weight percent, 3.8 weight M n to rocent that,
3,2 hmotnostních procent wolfrámu, 2,8 hmotnostních procent molybdenu a 1,3 hmotnostaím procee měe.3.2 weight percent tungsten, 2.8 weight percent molybdenum, and 1.3 weight percent process.
Claims (1)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS777660A CS196846B1 (en) | 1977-11-22 | 1977-11-22 | Protective two-layered coat for heat-stressed parts |
| DE19782849745 DE2849745A1 (en) | 1977-11-22 | 1978-11-16 | PROTECTIVE COVER FOR HEAT-EXPOSED PARTS THAT ARE CREATED BY PLASMA OR HEAT SPRAY APPLICATION |
| GB7844862A GB2009233A (en) | 1977-11-22 | 1978-11-16 | Protective Coating |
| SE7812004A SE7812004L (en) | 1977-11-22 | 1978-11-21 | PROTECTIVE COATING FOR HEAT PACKAGE SHARES PAFORD WITH A PLASMA-MADE RADIATION OR A HIGH-TEMPERATURE RAY |
| FR7833010A FR2409324A3 (en) | 1977-11-22 | 1978-11-22 | PROTECTIVE COATING FOR PARTS SUBJECTED TO HEAT, PRODUCED BY APPLICATION IN THE FORM OF PLASMA OR HOT SPRAY |
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 |
|---|---|
| CS196846B1 true CS196846B1 (en) | 1980-04-30 |
Family
ID=5426156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS777660A CS196846B1 (en) | 1977-11-22 | 1977-11-22 | Protective two-layered coat for heat-stressed parts |
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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565967A (en) * | 1979-06-28 | 1981-01-22 | Toyota Motor Corp | Sliding member |
| 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 |
| CN102791902B (en) | 2010-02-01 | 2015-04-08 | 科卢斯博知识产权有限公司 | Nickel-based thermal spraying powder and coating and preparation method thereof |
-
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
Also Published As
| Publication number | Publication date |
|---|---|
| SE7812004L (en) | 1979-05-23 |
| GB2009233A (en) | 1979-06-13 |
| FR2409324B3 (en) | 1980-12-05 |
| DE2849745A1 (en) | 1979-05-23 |
| FR2409324A3 (en) | 1979-06-15 |
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