CN106752132A - High heat conduction anticorrosion ceramic coating for metallic recuperator and its preparation method and application - Google Patents
High heat conduction anticorrosion ceramic coating for metallic recuperator and its preparation method and application Download PDFInfo
- Publication number
- CN106752132A CN106752132A CN201611109914.7A CN201611109914A CN106752132A CN 106752132 A CN106752132 A CN 106752132A CN 201611109914 A CN201611109914 A CN 201611109914A CN 106752132 A CN106752132 A CN 106752132A
- Authority
- CN
- China
- Prior art keywords
- heat conduction
- high heat
- ceramic coating
- metallic recuperator
- filler
- 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
Classifications
-
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Glass Compositions (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a kind of high heat conduction anticorrosion ceramic coating for metallic recuperator and its preparation method and application, its raw materials by weight includes 20~30% low-temperature glaze, 5~15% high emissivity filler, 3~8% high heat conduction fillers, 15~25% ceramic packings, 20~50% binding agents and 1~3% auxiliary agent, balance of water.The coating application process is processed metallic recuperator matrix first；Coating is uniformly coated in metal base surface, is dried in the shade；The metallic recuperator for finishing will be coated to be placed in flue, heating 20~90min, i.e. metallic recuperator surface using fume afterheat forms high heat conduction anticorrosion ceramic coating.Raw material of the invention is easy to get, low cost, after high temperature sintering, coating structure stabilization, it is tightly combined with heat exchanger metallic matrix, preventing high temperature oxidation, acid corrosion-resistant and wear-resistant effect can be effectively acted as to metallic recuperator, ceramic coating surface is brighter and cleaner simultaneously, is effectively reduced heat exchanger ash deposit and slag buildup, plays a part of extension metallic recuperator service life, improves heat exchange efficiency.
Description
Technical field
The present invention relates to ceramic coating technical field, in particular to a kind of high heat conduction anticorrosion pottery for metallic recuperator
Porcelain coating and its preparation method and application.
Background technology
Heat exchanger is common in chemical industry, oil refining, food, light industry, the energy, pharmacy, machinery and other many industrial departments
One of capital equipment of energy utilization rate is improved, in actual use, by the environment that heat exchanger is contacted is complex,
Such as hot environment, sour environment, dusty gas environment, therefore high-temperature oxydation, acid are inevitably produced in use
The problems such as erosion, abrasion, perforation, dust stratification, service efficiency and the life-span of heat exchanger are had a strong impact on.
Regarding to the issue above, solution mainly has two kinds：One is using high temperature resistant, corrosion-resistant metal materials in addition one
It is that heat exchanging device tube surfaces carry out protection treatment to plant.Due to economically, general enterprises are difficult to receive expensive
Corrosion resistant material, therefore second method is used mostly, wherein coating antiseptic erosion is a kind of important of solution heat exchanger etching problem
Approach, has the advantages that cheap, coating decoration is simple, maintenance coating is convenient, has a wide range of application.Current heat exchanger anticorrosion
It is organic resistance to that coating research is concentrated mainly on the cryogenic heat exchanger in the fields such as petrochemical industry that (temperature in use be less than 350 DEG C) use
High-temp anti-corrosion coating, studies relatively fewer for the metallic recuperator that heater for rolling steel, thermal power plant etc. use with ceramic coating.
The metal matrix ceramic composite coating having been reported is mainly used in the hot face of various Industrial Boilers, primarily serves raising infra-red radiation effect
The effects, such as " a kind of dirt-resistant slagging scorification ceramic coating and preparation such as rate, reduction Slagging, the anti-oxidant and anti-wear performance of enhancing
Method (number of patent application 201510666902.3) ", " a kind of anti-oxidation High Radiant Rate Coating of high temperature resistant and its user's (patent
Application number 201510668003.7) ", a kind of " high emissivity suitable for metal and non-metallic substrate (number of patent application high
201310131435.5) " etc., being higher than 1000 DEG C the formation temperature of ceramic coating, for 650~900 DEG C of scopes of temperature in use more
Metallic recuperator for, it is impossible to form fine and close ceramic coating, and changing due to the smaller often heat exchanging device of thermal conductivity factor
Hot property is impacted, it is therefore desirable to develop a kind of metallic recuperator high heat conduction anticorrosion ceramic coating.
The content of the invention
It is an object of the invention to a kind of high heat conduction anticorrosion ceramic coating for metallic recuperator and preparation method thereof
And application, the coating is coated in metallic recuperator surface, makes metallic recuperator thermal conductivity factor and infrared emittance is high, high temperature resistant is rotten
Erosion and sulfuric acid corrosion, wear resistance are strong.
To achieve the above object, above-mentioned technical problem, a kind of height suitable for metallic recuperator that the present invention is provided are solved
Heat conduction anticorrosion ceramic coating, the raw materials by weight meter of the high heat conduction anticorrosion ceramic coating includes 20~30%
Low-temperature glaze, 5~15% high emissivity filler, 3~8% high heat conduction fillers, 15~25% ceramic packings, 20~50% bond
Agent and 1~3% auxiliary agent, balance of water.
Further, the raw materials by weight meter of the high heat conduction anticorrosion ceramic coating include 25~28% it is low
Warm glaze, 8~10% high emissivity filler, 6~8% high heat conduction fillers, 18~20% ceramic packings, 40~45% binding agents
With 1~2% auxiliary agent, balance of water.
Yet further, the raw material of the low-temperature glaze by mass percentage by 10~20% Na2O, 30~45%
B2O3, 5~10% CaO and 30~45% SiO2Composition.
Yet further, the preparation method of the low-temperature glaze, comprises the following steps：
1) Na is weighed by mass percentage2O、B2O3, CaO and SiO2, it is well mixed to obtain mixture, it is standby；
2) mixture is heated into melting in the case where temperature is 1200~1500 DEG C of parts, then by molten product water quenching, that is, is obtained low
Warm glaze, wherein, the low-temperature glaze granularity is 0.3~1 μm.
Yet further, the raw material of the high emissivity filler by mass percentage by 40~70% Fe2O3, 15~
30% MnO2, 5~15% CuO and 5~15% CoO composition.
Yet further, the preparation method of the high emissivity filler, comprises the following steps：
1) Fe is weighed by mass percentage2O3、MnO2, CuO and CoO, it is well mixed to obtain mixture, it is standby；
2) mixture is sintered under the conditions of temperature is for 1200~1350 DEG C, obtains sintered product, that is, obtain high emissivity
Filler, wherein, the granularity of the high emissivity filler is 0.3~1 μm.
Yet further, the high heat conduction filler is that carborundum and boron nitride are constituted, wherein, the weight of carborundum and boron nitride
Amount is than being 1：1~9；Described high heat conduction filler particle size is 0.3~1 μm.
Described ceramic packing is made up of cordierite micro mist and chrome green micro mist, wherein cordierite micro mist and three oxidations
The weight ratio of two chromium micro mists is 1：0.4~1.2, described ceramic packing granularity is 0.3~1 μm.
Yet further, the binding agent is by mass percentage by 85~95% silicon-aluminum sol and 5~15%
Chromic anhydride is mixed, and described silicon-aluminum sol solid content is 25%, pH value 8~10；
The auxiliary agent is one kind or two kinds in Sodium Polyacrylate, carboxymethylcellulose calcium and neopelex.
Present invention also offers a kind of preparation side of the above-mentioned high heat conduction anticorrosion ceramic coating suitable for metallic recuperator
Method, comprises the following steps：
1) Na is weighed by mass percentage2O、B2O3, CaO and SiO2, it is well mixed to obtain mixture；
2) mixture is heated into melting in the case where temperature is 1200~1500 DEG C of parts, then by molten product water quenching, that is, is obtained low
Warm glaze, it is standby；
3) Fe is weighed by mass percentage2O3、MnO2, CuO and CoO, it is well mixed to obtain mixture；
4) mixture is sintered in the case where temperature is 1200~1350 DEG C of parts, obtains sintered product, that is, obtained high emissivity and fill out
Material, it is standby；
5) weighing low-temperature glaze, high emissivity filler, high heat conduction filler, ceramic packing according to percentage by weight carries out ball
Grind, be well mixed, be subsequently adding binding agent and auxiliary agent, be mixed into slurry, be aged, that is, obtain high heat conduction anticorrosion ceramic coating.
Present invention also offers a kind of application of the above-mentioned high heat conduction anticorrosion ceramic coating suitable for metallic recuperator, bag
Include following steps：
1) metallic recuperator matrix polished, cleaned, being removed oxide, grease and the dust of matrix surface；
2) high heat conduction anticorrosion ceramic coating is uniformly coated in metal base surface, is dried in the shade；
3) metallic recuperator for finishing will be coated to be placed in flue, is changed using fume afterheat heating 20~90min, i.e. metal
Hot device surface forms high heat conduction anticorrosion ceramic coating.
The beneficial effects of the present invention are：
The metallic recuperator high heat conduction anticorrosion ceramic coating that the present invention is provided, with good combination property：Resistance to height
Temperature, high heat conduction, corrosion-resistant, wear-resistant, high emissivity etc..It is micro- as the low cordierite of the thermal coefficient of expansion of ceramic packing addition
Powder, the transition metal oxide powder coefficient of expansion is reduced much larger than the problem of metallic matrix in can alleviating high emissivity filler
The shrinkage factor and coefficient of thermal expansion of coating, improve coating heat-resistant knocking stability, coating is firmly combined with matrix, it is difficult for drop-off with
Cracking.As the high-melting-point chrome green micro mist that ceramic packing is added, can be in the one layer of densification of formation of coating outer wall after sintering
Oxide-film, not only increases the resistance to elevated temperatures of coating, and long-term work is easily trickled at high temperature to solve the problems, such as conventional coating,
The characteristics of also utilizing itself coefficient of expansion larger, have adjusted hot expansibility of the coating in low-temperature zone.Add as high heat conduction filler
The carborundum and boron nitride micro mist for entering, can greatly improve the heat conductivility of coating, solve conventional ceramic coating thermal conductivity factor compared with
The small problem for causing metallic recuperator heat exchange efficiency to decline, while the addition of silicon carbide micro-powder can improve the wearability of coating
Energy.As many oxide of high emissivity filler addition after high temperature sintering, the composite oxides of inverse spinel structure are formed,
So that a large amount of defects occurs in original ferroso-ferric oxide lattice, impurity energy level is formed, so as to greatly improve the infrared emittance of material.
The addition of low-temperature glaze causes that coating can be sintered at a lower temperature, improves the compactness and closure of coating, increases and applies
Layer and the cohesive force of matrix, further improve the corrosion resistance and high temperature oxidation resistance of material.
The granularity of various filler micro mists is 0.3~1 μm in coating of the present invention, using ultrastructurepower technology, effectively reduces painting
The surface energy of material, makes coating be combined closely in the way of machinery, physics and chemistry with metallic matrix.
Coating hemisphere point temperature of the invention be higher than 1500 DEG C, can under 650~900 DEG C of flue gas conditions long-term use, apply
Material stable performance in use, is difficult decay, aging, 2.5~20 μm of infrared band emissivity εs>0.90, can efficient hardening
Radiant heat transfer under high temperature, reduces energy resource consumption.
Coating raw material of the invention is easy to get, low cost, after high temperature sintering, coating structure stabilization, with heat exchanger Metal Substrate
Body is tightly combined, and preventing high temperature oxidation, acid corrosion-resistant and wear-resistant effect can be effectively acted as to metallic recuperator, while ceramic
Coating surface is brighter and cleaner, is effectively reduced heat exchanger ash deposit and slag buildup, plays extension metallic recuperator service life, improves heat exchange
The effect of efficiency.
Brief description of the drawings
Fig. 1 is the stereoscan photograph of the floating coat section of embodiment 1.
Specific embodiment
In order to preferably explain the present invention, below in conjunction with the specific embodiment main contents that the present invention is furture elucidated, but
Present disclosure is not limited solely to following examples.
Embodiment 1
A kind of metallic recuperator preparation method of high heat conduction anticorrosion ceramic coating：
By Na2O、B2O3、CaO、SiO2It is well mixed according to mass fraction 16%, 37%, 8% and 39% respectively, load oxygen
Change aluminium crucible, be put into Muffle furnace and be heated to 1200 DEG C and be incubated 1 hour, the glaze of melting is poured into cold water rapidly, cross and be filtered dry
Granularity is milled to for 0.3~1 μm using ball mill after dry, obtains low-temperature glaze.
By Fe2O3、MnO2, CuO, CoO it is well mixed according to mass fraction 60%, 20%, 10% and 10% respectively, load
Alumina crucible, is put into Muffle furnace and is heated to 1200 DEG C and is incubated 2 hours, room temperature is naturally cooled to, after sintered product is taken out
Granularity is milled to for 0.3~1 μm using ball mill, obtains high emissivity filler.
SiC the and BN micro mists that granularity is 0.3~1 μm are well mixed according to mass fraction 10% and 90%, height are obtained and is led
Hot filler.
By cordierite and Cr that granularity is 0.3~1 μm2O3Micro mist is well mixed according to mass fraction 45% and 55%, obtains
Ceramic packing.
By silicon-aluminum sol (solid content 25%, pH value 8~10) claim according to the ratio of mass fraction 90% and 10% with chromic anhydride
Take, and chromic anhydride is dissolved in into silicon-aluminum sol, binding agent is obtained after stirring.
Finally, according to mass percent meter, low-temperature glaze 25%, high emissivity filler 8%, high heat conduction filler 5%, pottery are taken
Porcelain filling 20%, binding agent 40%, Sodium Polyacrylate 1%, carboxymethylcellulose calcium 1%, first by Sodium Polyacrylate and carboxymethyl
Cellulose is dissolved in binding agent, is then well mixed various fillers, and adds bonding agent while stirring, is stirred, is aged
After obtain high heat conduction anticorrosion ceramic coating.
Specifically used method：
1) 0Cr25Ni4N heat resisting steel polished, cleaned, being removed oxide, grease and the dust of matrix surface；
2) the high heat conduction anticorrosion ceramic coating of above-mentioned preparation is uniformly coated in metal base surface, is dried in the shade；
3) metallic matrix for finishing will be coated and is heated to 850 DEG C, being taken out after insulation 20min can form height in metal surface
Heat conduction anticorrosion ceramic coating.As shown in figure 1, coating is tightly combined with matrix, thickness is about coating profile scanning electromicroscopic photograph
50μm.Performance detection is carried out to coating according to general examination criteria in country or industry, testing result is as shown in table 1.
Embodiment 2
A kind of metallic recuperator preparation method of high heat conduction anticorrosion ceramic coating：
By Na2O、B2O3、CaO、SiO2It is well mixed according to mass fraction 18%, 42%, 6% and 34% respectively, load oxygen
Change aluminium crucible, be put into Muffle furnace and be heated to 1200 DEG C and be incubated 1 hour, the glaze of melting is poured into cold water rapidly, cross and be filtered dry
Granularity is milled to for 0.3~1 μm using ball mill after dry, obtains low-temperature glaze.
By Fe2O3、MnO2, CuO, CoO it is well mixed according to mass fraction 70%, 10%, 10% and 10% respectively, load
Alumina crucible, is put into Muffle furnace and is heated to 1200 DEG C and is incubated 2 hours, room temperature is naturally cooled to, after sintered product is taken out
Granularity is milled to for 0.3~1 μm using ball mill, obtains high emissivity filler.
SiC the and BN micro mists that granularity is 0.3~1 μm are well mixed according to mass fraction 50% and 50%, height are obtained and is led
Hot filler.
By cordierite and Cr that granularity is 0.3~1 μm2O3Micro mist is well mixed according to mass fraction 45% and 55%, obtains
Ceramic packing.
By silicon-aluminum sol (solid content 25%, pH value 8~10) claim according to the ratio of mass fraction 90% and 10% with chromic anhydride
Take, and chromic anhydride is dissolved in into silicon-aluminum sol, binding agent is obtained after stirring.
Finally, according to mass percent meter, low-temperature glaze 30%, high emissivity filler 5%, high heat conduction filler 6%, pottery are taken
Porcelain filling 18%, binding agent 39%, Sodium Polyacrylate 1%, carboxymethylcellulose calcium 1%, first by Sodium Polyacrylate and carboxymethyl
Cellulose is dissolved in binding agent, is then well mixed various fillers, and adds bonding agent while stirring, is stirred, is aged
After obtain high heat conduction anticorrosion ceramic coating.
Specifically used method：
1) 0Cr25Ni4N heat resisting steel polished, cleaned, being removed oxide, grease and the dust of matrix surface；
2) the high heat conduction anticorrosion ceramic coating of above-mentioned preparation is uniformly coated in metal base surface, is dried in the shade；
3) metallic matrix for finishing will be coated and is heated to 800 DEG C, being taken out after insulation 20min can form height in metal surface
Heat conduction anticorrosion ceramic coating.Performance detection is carried out to coating according to general examination criteria in country or industry, testing result is such as
Shown in table 1.
Embodiment 3
A kind of metallic recuperator preparation method of high heat conduction anticorrosion ceramic coating：
By Na2O、B2O3、CaO、SiO2It is well mixed according to mass fraction 16%, 37%, 8% and 39% respectively, load oxygen
Change aluminium crucible, be put into Muffle furnace and be heated to 1300 DEG C and be incubated 1 hour, the glaze of melting is poured into cold water rapidly, cross and be filtered dry
Granularity is milled to for 0.3~1 μm using ball mill after dry, obtains low-temperature glaze.
By Fe2O3、MnO2, CuO, CoO it is well mixed according to mass fraction 60%, 20%, 10% and 10% respectively, load
Alumina crucible, is put into Muffle furnace and is heated to 1350 DEG C and is incubated 2 hours, room temperature is naturally cooled to, after sintered product is taken out
Granularity is milled to for 0.3~1 μm using ball mill, obtains high emissivity filler.
SiC the and BN micro mists that granularity is 0.3~1 μm are well mixed according to mass fraction 70% and 30%, height are obtained and is led
Hot filler.
By cordierite and Cr that granularity is 0.3~1 μm2O3Micro mist is well mixed according to mass fraction 70% and 30%, obtains
Ceramic packing.
By silicon-aluminum sol (solid content 25%, pH value 8~10) claim according to the ratio of mass fraction 90% and 10% with chromic anhydride
Take, and chromic anhydride is dissolved in into silicon-aluminum sol, binding agent is obtained after stirring.
Finally, according to mass percent meter, take low-temperature glaze 20%, high emissivity filler 10%, high heat conduction filler 5%,
Ceramic packing 20%, binding agent 44%, carboxymethylcellulose calcium 1%, during carboxymethylcellulose calcium dissolved in into binding agent first, then will
Various fillers are well mixed, and add bonding agent while stirring, stir, be aged after obtain high heat conduction anticorrosion ceramics painting
Material.
Specifically used method：
1) 0Cr25Ni20 heat resisting steel polished, cleaned, being removed oxide, grease and the dust of matrix surface；
2) the high heat conduction anticorrosion ceramic coating of above-mentioned preparation is uniformly coated in metal base surface, is dried in the shade；
3) metallic matrix for finishing will be coated and is heated to 900 DEG C, being taken out after insulation 20min can form height in metal surface
Heat conduction anticorrosion ceramic coating.Performance detection is carried out to coating according to general examination criteria in country or industry, testing result is such as
Shown in table 1.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art,
Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as of the invention
Protection domain.
The ceramic coating performance parametric data table of 1 embodiment of table 1~3
Other unspecified parts are prior art.Although above-described embodiment is made that to the present invention and retouch in detail
State, but it is only a part of embodiment of the invention, rather than whole embodiments, people can also according to the present embodiment without
Other embodiment is obtained under the premise of creativeness, these embodiments belong to the scope of the present invention.
Claims (10)
1. a kind of high heat conduction anticorrosion ceramic coating suitable for metallic recuperator, it is characterised in that：The high heat conduction anticorrosion
The raw materials by weight meter of ceramic coating include 20~30% low-temperature glaze, 5~15% high emissivity filler, 3~
8% high heat conduction filler, 15~25% ceramic packings, 20~50% binding agents and 1~3% auxiliary agent, balance of water.
2. according to claim 1 suitable for the high heat conduction anticorrosion ceramic coating of metallic recuperator, it is characterised in that：It is described
The raw materials by weight meter of high heat conduction anticorrosion ceramic coating include 25~28% low-temperature glaze, 8~10% it is occurred frequently
Rate filler, 6~8% high heat conduction fillers, 18~20% ceramic packings, 40~45% binding agents and 1~2% auxiliary agent are penetrated, it is balance of
Water.
3. the high heat conduction anticorrosion ceramic coating suitable for metallic recuperator according to claim 1 or claim 2, it is characterised in that：
The raw material of the low-temperature glaze by mass percentage by 10~20% Na2O, 30~45% B2O3, 5~10% CaO and
30~45% SiO2Composition.
4. according to claim 3 suitable for the high heat conduction anticorrosion ceramic coating of metallic recuperator, it is characterised in that：It is described
The preparation method of low-temperature glaze, comprises the following steps：
1) Na is weighed by mass percentage2O、B2O3, CaO and SiO2, it is well mixed to obtain mixture, it is standby；
2) mixture is heated into melting under the conditions of temperature is for 1200~1500 DEG C, then by molten product water quenching, that is, obtains low temperature
Glaze, wherein, the low-temperature glaze granularity is 0.3~1 μm.
5. the high heat conduction anticorrosion ceramic coating suitable for metallic recuperator according to claim 1 or claim 2, it is characterised in that：
The raw material of the high emissivity filler by mass percentage by 40~70% Fe2O3, 15~30% MnO2, 5~15%
The CoO compositions of CuO and 5~15%.
6. according to claim 5 suitable for the high heat conduction anticorrosion ceramic coating of metallic recuperator, it is characterised in that：It is described
The preparation method of high emissivity filler, comprises the following steps：
1) Fe is weighed by mass percentage2O3、MnO2, CuO and CoO, it is well mixed to obtain mixture, it is standby；
2) mixture is sintered under the conditions of temperature is for 1200~1350 DEG C, obtains sintered product, that is, obtain high emissivity filler,
Wherein, the granularity of the high emissivity filler is 0.3~1 μm.
7. the high heat conduction anticorrosion ceramic coating suitable for metallic recuperator according to claim 1 or claim 2, it is characterised in that：
The high heat conduction filler is that carborundum and boron nitride are constituted, wherein, the weight ratio of carborundum and boron nitride is 1：1~9；Described
High heat conduction filler particle size is 0.3~1 μm；
Described ceramic packing is made up of cordierite micro mist and chrome green micro mist, wherein cordierite micro mist and chrome green
The weight ratio of micro mist is 1：0.4~1.2, described ceramic packing granularity is 0.3~1 μm.
8. the high heat conduction anticorrosion ceramic coating suitable for metallic recuperator according to claim 1 or claim 2, it is characterised in that：
The binding agent is by mass percentage to mix 85~95% silicon-aluminum sol and 5~15% chromic anhydride, described
Silicon-aluminum sol solid content is 25%, pH value 8~10；
The auxiliary agent is one kind or two kinds in Sodium Polyacrylate, carboxymethylcellulose calcium and neopelex.
9. the preparation method of the high heat conduction anticorrosion ceramic coating of metallic recuperator is applied to described in a kind of claim 1, and it is special
Levy and be：Comprise the following steps：
1) Na is weighed by mass percentage2O、B2O3, CaO and SiO2, it is well mixed to obtain mixture；
2) mixture is heated into melting under the conditions of temperature is for 1200~1500 DEG C, then by molten product water quenching, that is, obtains low temperature
Glaze, it is standby；
3) Fe is weighed by mass percentage2O3、MnO2, CuO and CoO, it is well mixed to obtain mixture；
4) mixture is sintered under the conditions of temperature is for 1200~1350 DEG C, obtains sintered product, that is, obtain high emissivity filler,
It is standby；
5) weighing low-temperature glaze, high emissivity filler, high heat conduction filler, ceramic packing according to percentage by weight carries out ball milling, mixed
Close uniform, be subsequently adding binding agent and auxiliary agent, be mixed into slurry, be aged, that is, obtain high heat conduction anticorrosion ceramic coating.
10. the application of the high heat conduction anticorrosion ceramic coating of metallic recuperator is applied to described in a kind of claim 1, and its feature exists
In：Comprise the following steps：
1) metallic recuperator matrix polished, cleaned, being removed oxide, grease and the dust of matrix surface；
2) high heat conduction anticorrosion ceramic coating is uniformly coated in metal base surface, is dried in the shade；
3) metallic recuperator for finishing will be coated to be placed in flue, 20~90min, i.e. metallic recuperator is heated using fume afterheat
Surface forms high heat conduction anticorrosion ceramic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611109914.7A CN106752132B (en) | 2016-12-06 | 2016-12-06 | High thermal conductivity anticorrosion ceramic coating and its preparation method and application for metallic recuperator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611109914.7A CN106752132B (en) | 2016-12-06 | 2016-12-06 | High thermal conductivity anticorrosion ceramic coating and its preparation method and application for metallic recuperator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106752132A true CN106752132A (en) | 2017-05-31 |
| CN106752132B CN106752132B (en) | 2019-05-21 |
Family
ID=58874526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611109914.7A Active CN106752132B (en) | 2016-12-06 | 2016-12-06 | High thermal conductivity anticorrosion ceramic coating and its preparation method and application for metallic recuperator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106752132B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815152A (en) * | 2017-11-23 | 2018-03-20 | 孙树才 | A kind of high temperature resistant heat insulation is resistance to burn metallic paint and preparation method thereof |
| CN107965754A (en) * | 2017-11-11 | 2018-04-27 | 安徽国电能源设备工程有限公司 | A kind of boilers heated electrically outer surface heat means of defence |
| CN113265165A (en) * | 2021-06-18 | 2021-08-17 | 旭贞新能源科技(上海)有限公司 | Anti-coking ceramic coating for boiler burning high-alkali coal, coating and preparation method thereof |
| WO2024032163A1 (en) * | 2022-08-09 | 2024-02-15 | 安徽新大陆特种涂料有限责任公司 | Method for preparing high-temperature- and wear-resistant ceramic coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076942A (en) * | 1992-03-14 | 1993-10-06 | 南京航空学院 | High-emissivity ceramic paint |
| CN1583889A (en) * | 2004-06-14 | 2005-02-23 | 华东理工大学 | High-temperature resistant energy-saving coating for metal |
| WO2008066319A1 (en) * | 2006-11-28 | 2008-06-05 | Woo-Jae Lee | Inorganic pigments composition having high hardness |
| CN102173122A (en) * | 2010-12-08 | 2011-09-07 | 西南科技大学 | Metal matrix ceramic coating composite material with high thermal conductivity |
| CN102219492A (en) * | 2011-05-12 | 2011-10-19 | 官明智 | Infrared radiation material, high-temperature infrared coating and production process thereof |
| CN104261884A (en) * | 2014-09-22 | 2015-01-07 | 广西北流仲礼瓷业有限公司 | Ceramic glaze fired at ultralow temperature and preparation method of ceramic glaze |
-
2016
- 2016-12-06 CN CN201611109914.7A patent/CN106752132B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076942A (en) * | 1992-03-14 | 1993-10-06 | 南京航空学院 | High-emissivity ceramic paint |
| CN1583889A (en) * | 2004-06-14 | 2005-02-23 | 华东理工大学 | High-temperature resistant energy-saving coating for metal |
| WO2008066319A1 (en) * | 2006-11-28 | 2008-06-05 | Woo-Jae Lee | Inorganic pigments composition having high hardness |
| CN102173122A (en) * | 2010-12-08 | 2011-09-07 | 西南科技大学 | Metal matrix ceramic coating composite material with high thermal conductivity |
| CN102219492A (en) * | 2011-05-12 | 2011-10-19 | 官明智 | Infrared radiation material, high-temperature infrared coating and production process thereof |
| CN104261884A (en) * | 2014-09-22 | 2015-01-07 | 广西北流仲礼瓷业有限公司 | Ceramic glaze fired at ultralow temperature and preparation method of ceramic glaze |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965754A (en) * | 2017-11-11 | 2018-04-27 | 安徽国电能源设备工程有限公司 | A kind of boilers heated electrically outer surface heat means of defence |
| CN107965754B (en) * | 2017-11-11 | 2019-11-08 | 安徽国电能源设备工程有限公司 | A kind of boilers heated electrically outer surface heat means of defence |
| CN107815152A (en) * | 2017-11-23 | 2018-03-20 | 孙树才 | A kind of high temperature resistant heat insulation is resistance to burn metallic paint and preparation method thereof |
| CN113265165A (en) * | 2021-06-18 | 2021-08-17 | 旭贞新能源科技(上海)有限公司 | Anti-coking ceramic coating for boiler burning high-alkali coal, coating and preparation method thereof |
| WO2024032163A1 (en) * | 2022-08-09 | 2024-02-15 | 安徽新大陆特种涂料有限责任公司 | Method for preparing high-temperature- and wear-resistant ceramic coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106752132B (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106587965B (en) | low-temperature sintering high-thermal-conductivity ceramic coating suitable for metal substrate and preparation method and application thereof | |
| CN102815951B (en) | Flame-resistant corrosion-resistant coating | |
| CN102585571B (en) | Infrared energy-saving coating with anti-corrosion and anti-coking functions and preparation method thereof | |
| CN103589201B (en) | High emissivity infrared energy-conserving radiation paint and preparation method thereof | |
| CN106752132A (en) | High heat conduction anticorrosion ceramic coating for metallic recuperator and its preparation method and application | |
| CN102219495B (en) | Infrared radiation coating and use method thereof | |
| WO2016082610A1 (en) | High temperature-, stain- and slagging-resistant ceramic coating and preparation method and use thereof | |
| CN102786820B (en) | Infrared radiation coating suitable for metal matrix and preparation method | |
| JP3399650B2 (en) | Heat and oxidation resistant coating method | |
| CN107573731B (en) | High-temperature infrared radiation coating and preparation method and application thereof | |
| Salvo et al. | Glass-ceramic oxidation protection of higher manganese silicide thermoelectrics | |
| CN109440045A (en) | A kind of ultra-thin process for protecting of electromagnetic induction heating coil | |
| CN101928479A (en) | High-temperature nanometer energy-saving coating | |
| CN111944334A (en) | Nano metal ceramic coating | |
| CN106116586A (en) | A kind of molybdenum alloy MoSi2zrO2y2o3coating and its preparation method and application | |
| CN104030709B (en) | Heating furnace high-temperature nm radiation coating and preparation technology thereof | |
| CN103289452B (en) | Chrome-free high-temperature infrared energy-conserving paint and preparation method thereof and application | |
| CN103572277A (en) | Nanometer ceramic-based high temperature-resistant wear and corrosion-resistant self-cleaning composite coating | |
| CN104446524B (en) | Heat barrier and heat radiation complex function based aluminum oxide pouring material for saving energy in high-temperature environment | |
| CN103553549A (en) | Heat-radiation coating material for ceramic kiln | |
| CN115724659B (en) | Multifunctional protective and energy-saving synergistic coating and preparation method thereof | |
| WO2024032163A1 (en) | Method for preparing high-temperature- and wear-resistant ceramic coating | |
| CN109385120B (en) | Aerogel high-temperature radiation resistant inorganic coating | |
| CN109384462A (en) | A kind of coating suitable for sulphur coal | |
| CN110628244B (en) | High-temperature energy-saving anticorrosive paint for metal baffle of sintering trolley and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170630 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan Applicant before: WUHAN IRON AND STEEL CORPORATION |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |