CN105152630B - Ceramic paint and application thereof - Google Patents
Ceramic paint and application thereof Download PDFInfo
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- CN105152630B CN105152630B CN201510542047.5A CN201510542047A CN105152630B CN 105152630 B CN105152630 B CN 105152630B CN 201510542047 A CN201510542047 A CN 201510542047A CN 105152630 B CN105152630 B CN 105152630B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 13
- 239000003973 paint Substances 0.000 title abstract 7
- 238000005524 ceramic coating Methods 0.000 claims abstract description 71
- 239000011230 binding agent Substances 0.000 claims abstract description 51
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 24
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 20
- 239000010439 graphite Substances 0.000 claims abstract description 20
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 12
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 12
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 21
- 235000019580 granularity Nutrition 0.000 claims description 20
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 16
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 16
- 239000004115 Sodium Silicate Substances 0.000 claims description 15
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 15
- 239000012752 auxiliary agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- -1 Muscovitum Chemical compound 0.000 claims description 10
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 8
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical group [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 2
- JGDFBJMWFLXCLJ-UHFFFAOYSA-N copper chromite Chemical compound [Cu]=O.[Cu]=O.O=[Cr]O[Cr]=O JGDFBJMWFLXCLJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000000080 wetting agent Substances 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
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides ceramic paint. The ceramic paint comprises 3.0wt%-6.8wt% of organic binders, 15.0wt%-45.0wt% of inorganic binders, 7wt%-35wt% of packing, 2.0wt%-3.0wt% of auxiliaries and the balance water. The organic binders are made of silicone emulsion, the inorganic binders are made of sodium water glass, and the packing comprises rare-earth oxide, graphite, mica, kaolin, copper chromite black, zirconia and chromium oxide. The invention further provides application of the ceramic paint to industrial furnaces. The ceramic paint and the application have the advantages that mutual synergistic effects can be realized by components in the ceramic paint, and accordingly the ceramic paint is excellent in comprehensive performance when used as a ceramic coating.
Description
Technical field
The present invention relates to technical field of coatings, more particularly to ceramic coating and its application.
Background technology
In the production run of station boiler, petrochemical heating furnace and commercial industry boiler etc., pulverized-coal fired boiler stains to be made
Into the very big hidden danger of safe operation of the boiler, while can also affect the efficiency of boiler or heating furnace.High temperature heat exchange surface stains knot
Slag directly results in exchange capability of heat decline, and stove effect is reduced, and then makes heat exchange surface be heated inequality, causes boiler tube thermal stress uneven and quilt
Heating working medium is heated inequality, at the same fire box temperature raise can also cause boiler tube overheating operation, NO_x formation and discharge plus
The problems such as acute and exhaust gas temperature is too high；Slagging can also aggravate heat exchange surface corrosion simultaneously.The problems referred to above directly affect enterprise
Safety in production, energy-saving and emission-reduction, product quality and production capacity, reduce the service life of equipment, bring massive losses to enterprise.
For the problem of above-mentioned Slagging, traditional solution be strengthen soot blowing, adjust fuel, the coke-removing agent that puts into operation,
Machinery beats Jiao etc., but said method does not fundamentally solve the problems, such as Slagging, and potential safety hazard is yet suffered from.
Coating is the important engineering material of a class, its refer to coat body surface can form thin film under certain condition and
Liquid or solid material with the specific function such as protection, decoration, insulation, antirust, shockproof or heat-resisting.And ceramic coating is a kind of
New environment-friendly function material, with not gluing, high temperature resistant, high rigidity, high durable, it is corrosion-resistant many advantages, such as, be a kind of preferable
Coating.
In order to solve the problems, such as the Slagging in the production runs such as boiler, researcher have developed a series of high temperature resistant resistive connection
Slag ceramic material, in order to strengthen above-mentioned boiler stability in process of production, researcher further enhances ceramic painting simultaneously
The performance of material, is desirably to obtain the preferable ceramic coating of combination property, so as to ensure that the firing equipment such as boiler can be stablized in industry
Operation.For example：The Chinese patent of Application No. 201410687121.8 discloses a kind of high temperature resistant dirt-resistant slagging scorification ceramic coating,
Which includes：Filler, binding agent and water, wherein filler include zirconium oxide, silicon nitride, carborundum, titanium dioxide, Kaolin and rare earth
Oxide, the ceramic coating that the patent is provided are resistant to 1050 DEG C of high temperature, but the coating combination property is not still very high.
The content of the invention
Present invention solves the technical problem that being to provide a kind of combination property preferable ceramic coating.
In view of this, this application provides a kind of ceramic coating, including：
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate；
Described filler includes graphite, Muscovitum, Kaolin, copper-chrome black, zirconium oxide, chromium oxide and rare earth oxide.
Preferably, with the ceramic coating as base, the content of the graphite is 0.5wt%～2.8wt%, the Muscovitum
Content is 1.0wt%～3.8wt%, and the kaolinic content is 0.5wt%～3.0wt%, and the content of the copper-chrome black is
3.0wt%～9.6wt%, the zirconic content are 0.5wt%～5.0wt%, and the content of the chromium oxide is 1.0wt%
～7.0wt%, the content of the rare earth oxide is 0.3wt%～3.0wt%.
Preferably, the auxiliary agent includes one or more in film former, lubricant and defoamer.
Preferably, the modulus of the sodium silicate is 1.2～2.9；The rare earth oxide is cerium oxide；The zirconium oxide
For stable type zirconium oxide.
Preferably, the D50 granularities of the rare earth oxide are 200～900nm, the D50 granularities of the graphite are 200～
900nm, the D50 granularities of the Muscovitum are 200～900nm, and the kaolinic D50 granularities are 200～900nm, the copper chromium
Black D50 granularities are 200～900nm, and the zirconic D50 granularities are 200～900nm, and the D50 granularities of the chromium oxide are
200～900nm.
Preferably, the content of the organic binder bond is 3.5wt%～6wt%, and the content of the organic binder bond is preferred
For 4.5wt%～5.5wt%.
Preferably, the content of the inorganic binder is 20wt%～40wt%, and the content of the inorganic binder is preferred
For 25wt%～32wt%.
Preferably, with the ceramic coating as base, the content of the graphite is 1.0wt%～2.5wt%, the Muscovitum
Content is 1.5wt%～3.5wt%, and the kaolinic content is 1.0wt%～2.6wt%, and the content of the copper-chrome black is
5.0wt%～8.0wt%, the zirconic content are 1.5wt%～3.0wt%, and the content of the chromium oxide is 2.5wt%
～5.5wt%, the content of the rare earth oxide is 1.0wt%～2.5wt%；The content of the graphite is preferably 1.5wt%
～2.0wt%, the content of the Muscovitum are preferably 2.1wt%～3.2wt%, and the kaolinic content is preferably 1.5wt%
～2.0wt%, the content of the copper-chrome black are preferably 6.0wt%～7.2wt%, and the zirconic content is preferably
2.2wt%～2.9wt%, the content of the chromium oxide are preferably 3.5wt%～4.8wt%, the content of the rare earth oxide
Preferably 1.5wt%～2.0wt%.
Preferably, the ceramic coating includes：The organic binder bond of 4.9wt%, the inorganic binder of 30.0wt%,
The filler of 20.7wt%, the auxiliary agent of 2.0wt%, the water of surplus；
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate；
Described filler includes the graphite of 1.7wt%, the Muscovitum of 2.4wt%, the Kaolin of 1.8wt%, the copper chromium of 6.3wt%
It is black, the zirconium oxide of 2.8wt%, the cerium oxide of the chromium oxide and 1.7wt% of 4.0wt%.
Present invention also provides application of the ceramic coating described in such scheme in industrial furnace.
This application provides a kind of ceramic coating, including：The organic binder bond of 3.0wt%～6.8wt%, 15.0wt%～
The water of the inorganic binder of 45.0wt%, the filler of 7wt%～35wt%, the auxiliary agent of 2.0wt%～3.0wt% and surplus；
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate, and described filler includes rare earth oxide, stone
Ink, Muscovitum, Kaolin, copper-chrome black, zirconium oxide and chromium oxide.Inorganic binder sodium silicate in the ceramic coating that the application is provided
In silicon dioxide first time heat up and the condition of high temperature under react to form covalent bond and ceramic with other inorganic components, and
Sodium in sodium silicate advantageously reduce inorganic system into Tao Wendu so that ceramic coating has more preferable temperature adaptation model
Enclose；Rare earth oxide in filler is conducive to crystal grain refinement simultaneously, and filling crystal grain gap forms network, so as to improve ceramic coating
The toughness of high temperature and room temperature, heat stability, high temperature corrosion, thermodynamic behaviour etc.；Kaolin has high temperature resistant, corrosion-resistant
Characteristic；Copper-chrome black constitutes copper-chrome black spinel structure by chromium oxide and copper oxide, with high emissivity, high temperature resistant, resistance to
Corrosion and high thermal expansion coefficient.To sum up, the application said components synergism, make ceramic coating as during ceramic coating with compared with
Good combination property, such as：The performances such as high temperature resistant, high heat exchange property, corrosion-resistant, high emissivity and dirt-resistant slagging scorification.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but
It should be appreciated that these descriptions are simply for further illustrating the features and advantages of the present invention, rather than to the claims in the present invention
Limit.
The embodiment of the invention discloses a kind of ceramic coating, including：
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate；
Described filler includes rare earth oxide, graphite, Muscovitum, Kaolin, copper-chrome black, zirconium oxide, chromium oxide and rare earth oxygen
Compound.
The ceramic coating that the application is provided passes through reasonably optimizing as the content of ceramic coating, its each component and each component
Matching, make ceramic coating as during ceramic coating with higher combination property.
This application provides a kind of ceramic coating, wherein inorganic binder are sodium silicate.The KP1 calls silicon
Sour potassium, molecular formula are Na2O·nSiO2.When the application ceramic coating is as coating, the silicon dioxide in sodium silicate is for the first time
Covalent bonds and ceramic are generated with other inorganic components reactions under intensification and the condition of high temperature, while the sodium in sodium silicate is conducive to
Reduce inorganic system into Tao Wendu so that ceramic coating has more preferable temperature adaptation scope.The modulus of the sodium silicate
Preferably 1.2～2.9.The content of herein described inorganic binder is 15.0wt%～45.0wt%, in certain embodiments,
The content of the inorganic binder is preferably 20.0wt%～40.0wt%, in certain embodiments, the inorganic binder
Content is preferably 25.0wt%～32.0wt%, and in certain embodiments, the content of the inorganic binder is preferably
28.0wt%～31.0wt%.
Herein described organic binder bond is silicone emulsion.The silicone emulsion is used cooperatively with inorganic binder, makes pottery
Porcelain coating has higher performance as coating.The content of herein described organic binder bond is 3.0wt%～6.8wt%,
In some embodiments, the content of the organic binder bond is preferably 3.5wt%～6.0wt%, in certain embodiments, described to have
The content of machine binding agent is preferably 4.5wt%～5.5wt%.
Herein described filler is coordinated jointly with the inorganic binder, organic binder bond, can be made by ceramic coating shape
Into coating there is preferable performance.Herein described filler include rare earth oxide, graphite, Muscovitum, Kaolin, copper-chrome black,
Zirconium oxide and chromium oxide, wherein described rare earth oxide are more preferably cerium oxide.Carbonization is may also include in herein described filler
The conventional fillers such as silicon and titanium dioxide.In described filler, cerium oxide is conducive to crystal grain refinement, filling crystal grain gap to form network, from
And high temperature and room temperature toughness, stability, high temperature corrosion, thermodynamic behaviour of ceramic coating etc. is improved, simultaneous oxidation cerium
Infiltration and the binding ability of ceramic coating and the interface of metal base can be improved, and improved ceramic coating and shape is combined with metal base
Into composite reliability, in summary, rare earth oxide cerium oxide can the coating that formed of General Promotion ceramic coating
Combination property and reliability；The Muscovitum defines effectively blocking to longtitudinal dispersion for laminated structure；The Kaolin has
High temperature resistant, corrosion resistant characteristic；The copper-chrome black spinel structure that the copper-chrome black is made up of chromium oxide and copper oxide, with height
The features such as emissivity, high temperature resistant, corrosion-resistant and high thermal expansion coefficient；The zirconium oxide be by zirconium oxide that mass ratio is 95% and
5% yittrium oxide is constituted, and the characteristics of with high temperature resistant, wear-resistant, high emissivity, herein described zirconium oxide is preferably stable type
Zirconium oxide；The characteristics of chromium oxide has high temperature resistant, high emissivity and high thermal expansion coefficient.
With the ceramic coating as base, the content of graphite described in herein described filler is 0.5wt%～2.8wt%,
The content of the Muscovitum be 1.0wt%～3.8wt%, the kaolinic content be 0.5wt%～3.0wt%, the copper chromium
Black content is 3.0wt%～9.6wt%, and the zirconic content is 0.5wt%～5.0wt%, and the chromium oxide contains
Measure as 1.0wt%～7.0wt%, the content of the rare earth oxide is 0.3wt%～3.0wt%.In certain embodiments, institute
The content for stating graphite is 1.0wt%～2.5wt%, and the content of the Muscovitum is 1.5wt%～3.5wt%, described kaolinic
Content is 1.0wt%～2.6wt%, and the content of the copper-chrome black is 5.0wt%～8.0wt%, and the zirconic content is
1.5wt%～3.0wt%, the content of the chromium oxide is 2.5wt%～5.5wt%, and the content of the rare earth oxide is
1.0wt%～2.5wt%, in certain embodiments, the content of the graphite is preferably 1.5wt%～2.0wt%, the Muscovitum
Content be preferably 2.1wt%～3.2wt%, the kaolinic content be preferably 1.5wt%～2.0wt%, the copper chromium
Black content is preferably 6.0wt%～7.2wt%, and the zirconic content is preferably 2.2wt%～2.9wt%, the oxygen
The content for changing chromium is preferably 3.5wt%～4.8wt%, and the content of the rare earth oxide is preferably 1.5wt%～2.0wt%.
The D50 granularities of the rare earth oxide are 200～900nm, and the D50 granularities of the graphite are 200～900nm, institute
State Muscovitum D50 granularities be 200～900nm, the kaolinic D50 granularities be 200～900nm, the D50 grains of the copper-chrome black
To spend for 200～900nm, the zirconic D50 granularities are 200～900nm, the D50 granularities of the chromium oxide are 200～
900nm。
Also include auxiliary agent in herein described ceramic coating, the auxiliary agent is auxiliary agent well known to those skilled in the art, can
Think one or more in dispersant, wetting agent and defoamer.The content of auxiliary agent described herein be 2.0wt%～
3.0wt%.The application is had no particular limits to the content of various components in the auxiliary agent, can be entered according to the performance of ceramic coating
The appropriate adjustment of row.
Preferably, herein described ceramic coating, including：
The organic binder bond is pure-acrylic emulsion, and the inorganic binder is sodium silicate；
Described filler includes the graphite of 1.7wt%, the Muscovitum of 2.4wt%, the Kaolin of 1.8wt%, the copper chromium of 6.3wt%
It is black, the zirconium oxide of 2.8wt%, the cerium oxide of the chromium oxide and 1.7wt% of 4.0wt%.
The various components of ceramic coating that the application is provided constitute a common system, define under the condition of high temperature including
There is the composite ceramic coat of the high-performance and reliability of elemental silicon, aluminum, chromium, copper, zirconium, magnesium, sodium, cerium, yttrium, oxygen etc..By ceramics painting
It is that the comprehensive use condition of satisfaction will that the ceramic coating that material is formed is one as the mass range of a system, each component and component
The system engineering for asking the reasonably optimizing of (high temperature resistant, high heat transfer characteristic, corrosion-resistant, wear-resistant etc.) to match.Each component content mistake
It is big or it is too small can all cause ceramic coating system unreasonable, including affect system film forming characteristicss, into pottery reaction temperature, thermodynamics
Characteristic (high temperature resistant, emissivity/blackness, thermal conductivity, coefficient of thermal expansion etc.), mechanical characteristic (wear-resisting to undermine high mechanical property etc.) with
And dirt-resistant slagging scorification ability etc..
The preparation method of herein described ceramic coating is prepared according to mode well known to those skilled in the art.In order to
Make that the various components in coating are more uniform, the preparation method of herein described ceramic coating is preferably carried out as steps described below：
Binding agent is mixed with water, binding agent liquid is obtained；
By described filler after micronization processes with the binding agent liquid mixing, add auxiliary agent, obtain ceramic coating.
Present invention also provides application of the ceramic coating in industrial furnace.The application ceramic coating is coatable in upper
State industrial furnace tube skin to form ceramic coating, safeguard industries stove stability in use.Work described above
Industry stove can be the industrial furnaces well known to those skilled in the art such as boiler, kiln and heating furnace.
For a further understanding of the present invention, the ceramic coating that the present invention is provided is carried out specifically with reference to embodiment
Bright, protection scope of the present invention is not limited by the following examples.
Embodiment 1
Organic binder bond, inorganic binder are mixed with water, binding agent liquid is obtained, the filler after refinement is added to viscous
In knot agent liquid, add auxiliary agent and stir, filter encapsulation, obtain ceramic coating, the ceramic coating each component of the present embodiment
Content it is as shown in table 1.
Embodiment 2
The preparation process of ceramic coating is same as Example 1, content such as 1 institute of table of the ceramic coating each component of the present embodiment
Show.
Embodiment 3
The preparation process of ceramic coating is same as Example 1, content such as 1 institute of table of the ceramic coating each component of the present embodiment
Show.
Embodiment 4～8
The preparation process of ceramic coating is same as Example 1, and the content of ceramic coating each component is as shown in table 1.
By the ceramic coating of embodiment 1～8, the radiation chamber tube skin of certain petrochemical industry atmospheric pressure kiln is coated, coating thickness is
30～50 μm.Performance detection, testing result are carried out to product according to general examination criteria in country or industry after baking and curing
As shown in table 2.
1 1～embodiment of embodiment of table, 8 ceramic coating each component content and specification data table
The performance parameter tables of data of 2 1～embodiment of embodiment of table, 4 ceramic coating
The performance parameter tables of data (continued) of 2 5～embodiment of embodiment of table, 8 ceramic coating
150 DEG C～1100 DEG C of the temperature resistant range of each formula of ceramic coating in above example, hardness is the 5～8 of steel alloy
Times；It is primarily adapted for use in metal base.
Using the formula of embodiment 2, after radiant coil surface applied ceramic coating, it is big that the atmospheric pressure kiln saves fuel
In 2.5%, discharged nitrous oxides reduce 20%.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these improve and modification is also fallen in the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein.
Claims (9)
1. a kind of ceramic coating, including：
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate；
Described filler includes graphite, Muscovitum, Kaolin, copper-chrome black, zirconium oxide, chromium oxide and rare earth oxide；With the ceramics
Coating is base, and the content of the graphite is 0.5wt%～2.8wt%, and the content of the Muscovitum is 1.0wt%～3.8wt%, institute
Kaolinic content is stated for 0.5wt%～3.0wt%, the content of the copper-chrome black is 3.0wt%～9.6wt%, the oxidation
The content of zirconium is 0.5wt%～5.0wt%, and the content of the chromium oxide is 1.0wt%～7.0wt%, the rare earth oxide
Content be 0.3wt%～3.0wt%；
The auxiliary agent includes one or more in film former, lubricant and defoamer；
The modulus of the sodium silicate is 1.2～2.9；The rare earth oxide is cerium oxide；The zirconium oxide is stable type oxygen
Change zirconium；
The D50 granularities of the rare earth oxide are 200～900nm, and the D50 granularities of the graphite are 200～900nm, the cloud
Female D50 granularities are 200～900nm, and the kaolinic D50 granularities are 200～900nm, and the D50 granularities of the copper-chrome black are
200～900nm, the zirconic D50 granularities are 200～900nm, and the D50 granularities of the chromium oxide are 200～900nm.
2. ceramic coating according to claim 1, it is characterised in that the content of the organic binder bond be 3.5wt%～
6wt%.
3. ceramic coating according to claim 1, it is characterised in that the content of the organic binder bond be 4.5wt%～
5.5wt%.
4. the ceramic coating according to any one of claims 1 to 3, it is characterised in that the content of the inorganic binder is
20wt%～40wt%.
5. the ceramic coating according to any one of claims 1 to 3, it is characterised in that the content of the inorganic binder is
25wt%～32wt%.
6. the ceramic coating according to any one of claim 1 to 5, it is characterised in that with the ceramic coating as base, described
The content of graphite is 1.0wt%～2.5wt%, and the content of the Muscovitum is 1.5wt%～3.5wt%, described kaolinic to contain
Measure as 1.0wt%～2.6wt%, the content of the copper-chrome black is 5.0wt%～8.0wt%, the zirconic content is
1.5wt%～3.0wt%, the content of the chromium oxide is 2.5wt%～5.5wt%, and the content of the rare earth oxide is
1.0wt%～2.5wt%.
7. the ceramic coating according to any one of claim 1 to 5, it is characterised in that the content of the graphite is 1.5wt%
～2.0wt%, the content of the Muscovitum is 2.1wt%～3.2wt%, the kaolinic content be 1.5wt%～
2.0wt%, the content of the copper-chrome black is 6.0wt%～7.2wt%, the zirconic content be 2.2wt%～
2.9wt%, the content of the chromium oxide is 3.5wt%～4.8wt%, the content of the rare earth oxide be 1.5wt%～
2.0wt%.
8. ceramic coating according to claim 1, it is characterised in that the ceramic coating includes：4.9wt%'s is organic viscous
Knot agent, the inorganic binder of 30.0wt%, the filler of 20.7wt%, the auxiliary agent of 2.0wt%, the water of surplus；
The organic binder bond is silicone emulsion, and the inorganic binder is sodium silicate；
Described filler includes the graphite of 1.7wt%, the Muscovitum of 2.4wt%, the Kaolin of 1.8wt%, the copper-chrome black of 6.3wt%,
The zirconium oxide of 2.8wt%, the cerium oxide of the chromium oxide and 1.7wt% of 4.0wt%.
9. application of the ceramic coating described in any one of claim 1 to 8 in industrial furnace.
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| EP3275850B1 (en) * | 2016-07-28 | 2018-12-12 | Tubacoat, S.L. | Ceramic composition and material comprising said ceramic composition as part of a heat recovery unit |
| CN108299870A (en) * | 2016-08-30 | 2018-07-20 | 甘肃华鑫石化科技有限公司 | A kind of high blackness anti-coking corrosion-resistant ceramic coating of high temperature resistant |
| CN108929114B (en) * | 2017-05-23 | 2021-07-02 | 中国石油天然气股份有限公司 | Geopolymer coating and preparation method and application thereof |
| CN108531078B (en) * | 2018-04-28 | 2020-06-19 | 兆山科技（北京）有限公司 | Ceramic surface material and surface coating |
| CN108485516B (en) * | 2018-04-28 | 2020-05-05 | 兆山科技（北京）有限公司 | Ceramic surface material and surface coating |
| CN109136716A (en) * | 2018-10-16 | 2019-01-04 | 北京隆源纳欣科技有限公司 | A kind of nanometer metal ceramic composite coating and preparation method thereof |
| CN109796868A (en) * | 2018-10-30 | 2019-05-24 | 张杰强 | A kind of corrosion resistant ceramic coating and preparation method thereof |
| CN109796823A (en) * | 2018-10-30 | 2019-05-24 | 中电华材新材料科技（北京）有限公司 | A kind of corrosion resistant ceramic coating and preparation method thereof |
| CN111349391A (en) * | 2020-04-17 | 2020-06-30 | 常州穗时新材料有限公司 | High-temperature-resistant coating and preparation method thereof |
| CN116716041A (en) * | 2023-07-08 | 2023-09-08 | 北京希柯节能环保科技有限公司 | Composite crystallization film slurry for furnace tube of oil refining heating furnace |
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