WO2004046264A1 - Hybrid protective covers of metal surfaces, especially of water-wall tubes in power boilers - Google Patents
Hybrid protective covers of metal surfaces, especially of water-wall tubes in power boilers Download PDFInfo
- Publication number
- WO2004046264A1 WO2004046264A1 PCT/PL2003/000121 PL0300121W WO2004046264A1 WO 2004046264 A1 WO2004046264 A1 WO 2004046264A1 PL 0300121 W PL0300121 W PL 0300121W WO 2004046264 A1 WO2004046264 A1 WO 2004046264A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum
- agent
- water
- dichromate
- layer
- Prior art date
Links
Classifications
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- 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
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- 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
- F22B37/10—Water tubes; Accessories therefor
- F22B37/107—Protection of water tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
Definitions
- the subject of invention is the hybrid protective cover of metal surfaces, used for climatic protection, protection against high temperature oxidation in exhaust gases, especially used for covering of water-wall tubes in power boilers.
- the cover may be also used as electrochemical corrosion protection.
- covers which include anticorrosion agents manufactured on the base of phosphate-chromate glazes, with magnesium as alkalizing metal, where metallic powder is dispersed.
- anticorrosion agent for obtaining protective covers which is the water solution including phosphate, dichromate, magnesium, chromate and aluminum ions and spherical aluminum powder, with oxidized surface and grain size below 8 ⁇ m, in the quantity up to 1600 g in one decimeter of solution. Proportion of dichromate and phosphate ions is 0,25-0,35.
- covers which include, as protection agents, dispersions of spherical and/or flakes aluminum, silicon powders and aluminum-sihcon compounds in silicon resins and mixtures of organic solvents.
- Silicon resins, used as binding material in high temperature protection covers, include methyl and phenyl groups having the general formula: (RlR2SiO)n, where Rl - CH 3 , R2 - H 5 .
- Hybrid protective cover for metal surfaces, especially for water-wall tubes in power boilers, according to invention which includes anticorrosion agent X, consisting of water solution including phosphate, dichromate, magnesium and aluminum ions and spherical aluminum powder, with oxidized surface and grain size below 8 ⁇ m, in the quantity 1600g for one decimeter of solution, and the proportion of dichromate to phosphate ions is 0,25-0,35, and the protective agent Y, consisting of dispersion of spherical and/or flakes aluminum, silicon powders and duminum-silicon compounds in silicon resins and organic solvents mixtures, characterized in that consists of internal layer, directly adhering to the protected metal surface, including anticorrosion agent, and of external layer, including protection agent.
- anticorrosion agent X consisting of water solution including phosphate, dichromate, magnesium and aluminum ions and spherical aluminum powder, with oxidized surface and grain size below 8 ⁇ m, in the quantity 1600g for one decimeter of solution, and the proportion
- the thickness of internal layer is in the range of 15 to 100 ⁇ m, and thickness of external layer is also in range of 15 to 100 ⁇ m. To achieve possibly high surface quality, especially of external layer, it is beneficial to use powders with grain size not bigger than 5 ⁇ m.
- hybrid cover obtained this way is that it protects metallic surfaces against most of organic compounds as solvents, aldehydes, ketones, derivates of crudesoil, esters and organic acids, ammonia and ammonated salts.
- This cover is also corrosion protection in oxidizing atmosphere, in temperatures 20 - 600°C, increases resistance to thermal shocks, effectively protects against electrochemical corrosion.
- Two-layers cover, according to invention is characterized also by perfect inter-layer adherence. The cover has no character of diffusion cover, what means that in high temperatures it does not re-diffuse. The cover has perfect adherence to metallic surfaces.
- Fig. 1 shows cross section of metallic surface with the protection cover.
- the hybrid protection cover of metallic surfaces consists of directly adhering to protected metallic surface 1, internal layer A, including anticorrosion agent X, and interconnected outer layer B, including the protection agent Y.
- the thickness a of outer layer A is in the range of 15 to 100 ⁇ m
- the thickness b of external layer B is in the range of 15 to 100 ⁇ m.
- Grain size of internal layer A and/or external layer B is not bigger than 8 ⁇ m.
- the anticorrosion agent X of internal layer A consists of: 85% H 3 P0 4 in the quantity 339 g, MgC0 3 in the quantity 124 g, Cr0 3 in the quantity 80g, H 2 0 supplementary to 1 dcm 3 , aluminum powder in the quantity of 1150g per one 1 dcm 3 of solution; proportion of dichromate to phosphate ions is 0,33.
- the anticorrosion agent Y of outer layer B is dispersion of spherical aluminum powders in the quantity 55% by weight in silicon resin (methyl-phenyl polysiloxane) and mixture of organic solvents (xylene, cyclohexanol).
- the anticorrosion agent X of internal layer A consists of: Mg/H 2 PO- ⁇ /2 " 3H 2 0 in the quantity of 400g, Cr0 3 in the quantity of 90 g, H 0 supplementary to 1 dcm , aluminum powder in the quantity 1150g per 1 dcm 3 of solution; proportion of dichromate to phosphate ions is 0,33.
- the anticorrosion agent Y of outer layer B is a dispersion of flakes powder aluminum in the quantity of 55% by weight, in the mixture of silicon resin (methyl-phenyl polysiloxane) and mixture of polar solvents (xylen, cyclohexanol).
- the anticorrosion agent X of internal layer A includes: MgCr 2 07 ⁇ 6H 2 0 in the quantity of 139g, ' 3H 2 0 in the quantity of 292g, 85%H 3 P0 4 in the quantity of 91,5g, H 2 0 supplementary to 1 dcm 3 , aluminum powder in the quantity of 1150g per 1 dcm 3 of solution; proportion of dichromate to phosphate ions is 0,33.
- the anticorrosion agent Y of outer layer B is a dispersion of spherical uminum powder and aluminum-silicon compounds in the quantity of 55% by weight in silicon resin (methyl-phenyl polysiloxane) and mixture organic solvents (xylen, cyclohexanol).
- the anticorrosion agent X of internal layer A includes: MgCr 2 0 7 • 6H 2 0 in the quantity of 120g, MgO in the quantity of 43g, 85%H 3 P0 4 in the quantity of 339g, H 2 0 supplementary to 1 dcm 3 , proportion of dichromate to phosphate ions is 0,27.
- the anticorrosion agent Y of outer layer B is a dispersion of flakes aluminum powder in the quantity of 55% by weight in mixture of silicon resin (methyl- phenyl polysiloxane) and mixture of polar solvents (xylen, cyclohexanol).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003286982A AU2003286982A1 (en) | 2002-11-15 | 2003-11-14 | Hybrid protective covers of metal surfaces, especially of water-wall tubes in power boilers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL357145A PL202259B1 (en) | 2002-11-15 | 2002-11-15 | Hybrid protective coating for metallic surfaces, particularly water wall tubes in power boilers |
PLP-357145 | 2002-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004046264A1 true WO2004046264A1 (en) | 2004-06-03 |
Family
ID=32322591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/PL2003/000121 WO2004046264A1 (en) | 2002-11-15 | 2003-11-14 | Hybrid protective covers of metal surfaces, especially of water-wall tubes in power boilers |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003286982A1 (en) |
PL (1) | PL202259B1 (en) |
WO (1) | WO2004046264A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010043708A1 (en) * | 2008-10-16 | 2010-04-22 | Ewald Dörken Ag | Method for electrochemically protecting a metal surface from corrosion |
EP2428730A1 (en) * | 2010-09-09 | 2012-03-14 | Siemens Aktiengesellschaft | Method for producing condenser or heat exchanger tubes |
WO2024172796A1 (en) * | 2023-02-14 | 2024-08-22 | Uysal Makina Sanayi Ithalat Ihracat Ve Ticaret Anonim Sirketi | A coating with high anti-corrosive effectiveness and a method for coating said coating on substrates |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3248251A (en) * | 1963-06-28 | 1966-04-26 | Teleflex Inc | Inorganic coating and bonding composition |
PL136843B1 (en) * | 1982-11-12 | 1986-03-31 | Akad Gorniczo Hutnicza | Corrosion preventing agaent |
US5116672A (en) * | 1990-02-05 | 1992-05-26 | Sermatech International, Inc. | Organic coatings with ion reactive pigments especially for active metals |
PL160625B1 (en) * | 1989-05-23 | 1993-04-30 | Gorniczo Hutniczy Miedzi | Method of protecting internal surfaces of a recuperative boiler against corrosive and erosive effects of its environment |
-
2002
- 2002-11-15 PL PL357145A patent/PL202259B1/en unknown
-
2003
- 2003-11-14 WO PCT/PL2003/000121 patent/WO2004046264A1/en not_active Application Discontinuation
- 2003-11-14 AU AU2003286982A patent/AU2003286982A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3248251A (en) * | 1963-06-28 | 1966-04-26 | Teleflex Inc | Inorganic coating and bonding composition |
PL136843B1 (en) * | 1982-11-12 | 1986-03-31 | Akad Gorniczo Hutnicza | Corrosion preventing agaent |
PL160625B1 (en) * | 1989-05-23 | 1993-04-30 | Gorniczo Hutniczy Miedzi | Method of protecting internal surfaces of a recuperative boiler against corrosive and erosive effects of its environment |
US5116672A (en) * | 1990-02-05 | 1992-05-26 | Sermatech International, Inc. | Organic coatings with ion reactive pigments especially for active metals |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010043708A1 (en) * | 2008-10-16 | 2010-04-22 | Ewald Dörken Ag | Method for electrochemically protecting a metal surface from corrosion |
EP2428730A1 (en) * | 2010-09-09 | 2012-03-14 | Siemens Aktiengesellschaft | Method for producing condenser or heat exchanger tubes |
EP2428729A1 (en) * | 2010-09-09 | 2012-03-14 | Siemens Aktiengesellschaft | Method for producing condenser or heat exchanger tubes |
WO2024172796A1 (en) * | 2023-02-14 | 2024-08-22 | Uysal Makina Sanayi Ithalat Ihracat Ve Ticaret Anonim Sirketi | A coating with high anti-corrosive effectiveness and a method for coating said coating on substrates |
Also Published As
Publication number | Publication date |
---|---|
AU2003286982A1 (en) | 2004-06-15 |
PL357145A1 (en) | 2004-05-17 |
PL202259B1 (en) | 2009-06-30 |
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