CN102173648B - Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof - Google Patents
Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof Download PDFInfo
- Publication number
- CN102173648B CN102173648B CN 201110004574 CN201110004574A CN102173648B CN 102173648 B CN102173648 B CN 102173648B CN 201110004574 CN201110004574 CN 201110004574 CN 201110004574 A CN201110004574 A CN 201110004574A CN 102173648 B CN102173648 B CN 102173648B
- Authority
- CN
- China
- Prior art keywords
- parts
- emulsion
- temperature
- resistant
- coating
- 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.)
- Expired - Fee Related
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to a water-based high-temperature-resistant oxidation-resistant inorganic paint and a preparation method thereof. The paint provided by the invention is mainly prepared from the following components in parts by weight: 15-35 parts of water-based inorganic aluminasol resin, 5-15 parts of aluminum oxide, 10-35 parts of alumina, 5-15 parts of kaolin, 0.5-10 parts of organic synthetic emulsion, 10-35 parts of deionized water and 0.5-3 parts of viscosity stabilizer. The organic synthetic emulsion is one of silicone-acrylate emulsion, acetic acid-versatate emulsion, pure acrylic emulsion, styrene-acrylic emulsion and vinyl acetate/acrylic emulsion. The invention has the advantages of high temperature resistance, high peeling tendency by quenching, high safety and environmental protection, is widely applicable to various steel grades, and is convenient to use.
Description
Technical field
The present invention a kind ofly can prevent steel billet decarburization and oxidation resistant water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method, is used for the billet surface making coatings is protected.
Background technology
Surface oxidation all can occur in ferrous materials under high temperature oxidation stability atmosphere, oxidation not only causes the iron and steel loss, also can cause iron and steel interalloy dilution in elements, affects quality and the mechanical property of steel products.As everyone knows, steel billet is before rolling, and the general process furnace that all will pass through certain temperature and oxidizing atmosphere heats or soaking.Because by long-time heating, strong oxidizing reaction at high temperature occurs and generates a large amount of iron scales steel billet in the oxygen in its surface and the atmosphere, and the lumber recovery of steel is significantly reduced in process furnace.Pertinent data is introduced steel because of the oxidational losses that various heat effects cause, and is equivalent to the 4-6% that the world produces crude steel per year.For medium and high carbon steel, in heat-processed, except the oxidation scaling loss, also can cause surface decarburization, mechanical property reduces.For the special steel that contains the alloying elements such as Ni, Cu, Cr, Si, these element generation oxidations during heating are namely used high pressure water to remove before billet surface forms the metal oxide top layer that is difficult to peel off, be rolling and also are difficult to all eliminate, be pressed into easily when rolling in the steel, form surface imperfection.In order to reduce the oxidization burning loss of steel, improve lumber recovery and improve steel quality, to study and a kind ofly in heat-processed, steel is had good protective value, the billet oxidization coating that prevents that can in time peel off again after coming out of the stove is highly significant.
During producing, conventional steel rolling usually realizes few oxygen, the nonoxidizing heating of steel by automatic adjustment process furnace encephalic Gas Components, rapid heating and vacuum protection.But this control method often cost of investment is high, maintenance of the equipment and control difficulty, and the scale operation practical application effect is poor.Consider that from using method and economic angle what easily promote at present is the technology that applies oxidation inhibitor at ferrous materials, it is to make it form coating at billet surface by the function ingredients in the development high temperature anti-oxidation coating system.Form fine and close uniformly adhesion layer at metal base surface during coating high-temp, reach the purpose of protection steel billet matrix.
About being used for the antioxidizing paint of heating steel billet process, the scientific worker has carried out some researchs both at home and abroad.Present existing high-temp antioxidizing paint mainly contains two classes: organosilicate coating and unorganic glass body coating.
Organosilicate coating forms by frit with take the organic polymer of heat stable resin as base.At present general thermally stable polymer anti-more than 400 ℃ temperature very difficult, can add therein inorganic heat-resistant filler, the method that combines by the organic-inorganic structure improves the heat-resisting oxidation-resistance performance of coating.In low temperature (＜400 ℃) stage, anti-oxidant function is born by organic structure, 400 ℃ of high temperature (〉) then born by inorganic structure.Its action principle is: when thermally stable polymer decomposes, carbonization lost enough adhesive properties, frit began to soften, and had continued to adhere to matrix surface the effect of film forming.Glass belongs to silicates, Heat stability is good, so its adding has improved use temperature and the life-span of coating greatly, use temperature can reach 760 ℃.Adopt the glass powder of the high, medium and low fusing point of suitable proportion, can obtain that high temperature sticking power is good, glossy, corrosion-resistant, the high temperature protection coating of heat shock resistance.Some have been prepared abroad for the good organosilicate coating of function under the moderate temperature conditions.Such as Japan's silicone resin, epoxy silicone resin, alkyd modified silicone resin base-material 30～50%; 300～500 ℃ of glass powder 20～40%; heat-resistant filler 10% and glass fusing assistant 5%; coating sticking power under 600 ℃ of 100h working conditionss keeps 100%, can be used as surface temperature 600～700 ℃ petroleum cracking stove and various heat exchanger high temperature protection coating.The green silicone resin glass coating of the Thumalox240 of U.S. Dampney company preparation is used for Inland Iron And Steel Company reverberatory furnace injector, uses 3 years protective values good down at 480～760 ℃, can be heat-resisting, resistance to chemical attack and temperature alternating.
This shows that the coatings characteristic of organosilicate coating preparation is that bonding strength is high, is used for the long-term resistance to high temperature oxidation of metal.Because of its moisture-free, thus fast drying after applying, and can not cause corrosion in ordinary low-alloy steel, can be used to protect the steel of easy formation rust staining, but it is only applicable to anti-oxidation below 800 ℃.
The coating of unorganic glass body class coating preparation at high temperature, coating is softening gradually by the solid stacking states, forms fritting viscous attitude even molten state, forms fine and close melt film.Coating begins to have certain protective capability from softening, until the molten state liquid phase occurs, the coating density increases protective capability and strengthens.This type coating is often used for the resistance to high temperature oxidation of interim hot procedure, so need to have from spalling resistance.The coating of vitreum class coating preparation comprises that glass behind the high melt is as the enamel coating of main raw material with take the oxide ceramic coating of glass forming substances as base.The Main Components that forms glass generally has silicate, aluminate and borate etc.In recent years, the researchdevelopment of external vitreum type high temp coating is very fast, processes making coating have higher mechanical property and high-temperature stability by various improvement.Japan and some patent Introductions of USSR (Union of Soviet Socialist Republics) be used for the vitreum type coating technology that metallic high temperature is protected.The prepared coating of glass enamel coating is mainly by silicon-dioxide SiO
2With boron trioxide B
2O
3Be that master's multivariant oxide is through the frit composition of high melt, Si0
2, B
20
3Form the rack of coating, generally also add alkalimetal oxide, alkaline earth metal oxide is fluxed and the oxide compound of some high-temperature stable is made filler, these assisted oxidation things affect the performance index such as the viscosity of coating, initial softening temperature and thermal expansivity.
A kind of Glass-Based Coating for Proventing has been introduced in the stone source in " Glass-Based Coating for Proventing material protection ", the mainly preparation take discarded glass as main raw material.Suo Jinping has introduced a kind of coating that prevents from being subject to sulfur corrosion in the stainless steel and refractory steel hot procedure and micro-flaw occurs at " stainless refractory steel hot-work protective cover ".The people such as U.S. Nigrin have introduced a kind of glaze of being made by frit.These several coating SiO
2Content is all more than 50%, and the use temperature condition is about 600～800 ℃.Under the individual cases, can be used for below 1000 ℃.
The prepared coating of oxide ceramics coating mainly is the Si0 that introduces with silicate
2Be main glass forming substances, adding multiple ceramic oxide refractory materials is filler, and the slip of this coating is made by simple and mechanical mixing.Coating at high temperature by melt for bonding bridge and molten fire resistant infilling form heterogeneous fritting system, to form fine and close protective membrane.Because the effect of ceramics component at high temperature forms the devitrified glass melt, increase compactness, high-temperature stability and from spalling resistance.Usually the oxide compound that adds has A1
2O
3, Cr
2O
3, CaO, MgO, TiO
2, ZrO
2Deng.These oxide compounds all have high fusing point, so require to add the composition of fluxing, are that coating at high temperature forms enough liquid mucous membranes, and the composition of fluxing is generally basic oxide.In addition, also can add some non-oxide ceramics raw materials, such as SiC, B
4The protective value of the optimized coatings such as C, KBF.
The people from Japan such as little field island Shou Nan once delivered the article of relevant oxidation inhibitor coating in nineteen eighty-three, and it is antioxidizing paint and the MnNO that is used on the straight carbon steel that the oxidation inhibitor of their development is respectively for the metal A l on the special steel
2Be antioxidizing paint, the oxidization burning loss of steel billet has reduced 98% after using.All there is limitation in the development of this oxidation inhibitor coating with use, the one, the anti-oxidation temperature of coating is excessively low, about about 1000 ℃, a part of part Study achievement is for a certain special steel material (such as stainless steel, silicon steel and some aviations with special steel material etc.) in addition, the coating high cost does not have general applicability.
Summary of the invention
The object of the present invention is to provide a kind of have high temperature resistant (1350 ℃) working conditions, steel grade general applicability, inorganic water-soluble, cost is low, environment-friendly type can prevent steel billet decarburization and oxidation resistant aqueous high-temperature-resistant inorganic paint and preparation method, effectively reduce oxidization burning loss in the steel industry operation of rolling, solve the surface quality problems of rolling stock.
The present invention is achieved in that a kind of water-based high-temperature-resistant oxidation-resistant inorganic paint, it is characterized in that: mainly formed by weight by following component: 15～35 parts of aqueous inorganic aluminium colloidal sol resins, 5～15 parts in aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin, 0.5～10 part of organic synthesis emulsion, 10～35 parts of deionized waters, 0.5～3 part of viscosity stabilizer; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.
Described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
Described aqueous inorganic aluminium colloidal sol resin is the commercially available prod, and specification is that the resin modulus is 10.0.
A kind of preparation method of above-mentioned water-based high-temperature-resistant oxidation-resistant inorganic paint, comprise the steps: with parts by weight to be: 10～35 parts of deionized waters, 15～35 parts aqueous inorganic aluminium colloidal sol resin, 5～15 parts of aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin join in the mixing kettle successively, high-speed stirring 30～60 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 0.5～10 part of organic synthesis emulsion that slowly drips, temperature is controlled at 60 ℃～80 ℃, dropwises rear insulation 2.5～3 hours, cooling, temperature in the kettle disperses to add 0.5～3 portion of viscosity stabilizer less than low speed below 40 ℃, stirs 10～15 minutes; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.
Described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
Aqueous inorganic aluminium colloidal sol resin is carried out grafting and the chain extension of organic and inorganic high molecular polymer by adding the organic synthesis emulsion, forms a macro-radical of going here and there mutually network, stablizing with viscosity stabilizer.Wherein having added aluminum oxide, bauxitic clay, these high temperature materials of kaolin helps coating sintering film forming of the present invention and impels the content of silicon in the oxide skin, aluminium, boron that variation has occured; make the boron oxide and the inorganic silicon that contain in the coating; at high temperature can form fine and close protective layer at billet surface, shielding has completely cut off contacting of oxidizing atmosphere and steel billet.
Add viscosity stabilizer and solved the stability problem of organic synthesis emulsion in aqueous inorganic aluminium colloidal sol resin.Aqueous inorganic aluminium colloidal sol resin is strong basicity, the poor easy generation breakdown of emulsion of organic synthesis emulsion mechanical stability under alkaline medium and storage characteristics problem.
The present invention has following features:
(1) generally be applicable to the hot conditions of steel industry, top temperature can reach 1350 ℃;
(2) dope layer not with steel billet matrix generation chemical reaction, do not reduce its physical and mechanical properties of steel and erosion resistance;
(3) dope layer should have certain viscosity, can form layer protecting film;
(4) application of paints is not limited to certain steel grade, can in wider dimension scope provide protection be arranged, and has the ability that stops the gas diffusion;
(5) coating can be peeled off rapidly from billet surface in the de-scaling process of coming out of the stove before rolling;
(6) coating itself has no irritating odor, have water-soluble, should be nontoxic, use safety and environmentally safe;
(7) the coating field conduct is easy, and without particular requirement, the unit surface consumption is few to billet surface, and use cost is low;
(8) preparation of coating and coated technique are simple and convenient, and production cost is low.
The invention has the beneficial effects as follows: high temperature resistant, generally applicable steel grade, water soluble paint, chilling easily peels off, safety and environmental protection, and is easy to use.Effect of the present invention is to reduce oxide skin that steel billet generates because of oxidation or forms owing to carbon loss in process furnace decarburization.And because the Water-borne modification of coating has been avoided the pollution to environment; coating effectively makes the content of silicon in the oxide skin, aluminium, boron change under the use temperature of 1350 ℃ on steel billet; make the boron oxide and the inorganic silicon that contain in the coating; at high temperature can form fine and close protective layer at billet surface, shielding has completely cut off contacting of oxidizing atmosphere and steel billet.The electricity level current potential of aluminum oxide is lower than iron, and aluminum oxide becomes the sun level, and iron becomes negative electrode makes it obtain effective protection.The present invention has greatly been lowered product energy consumption and increased the finished product yield, and is free from environmental pollution, and construction is simple, and boundless application space is arranged.
Embodiment
Coating of the present invention mainly is made of by weight following component: 15～35 parts of aqueous inorganic aluminium colloidal sol resins, 5～15 parts in aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin, 0.5～10 part of organic synthesis emulsion, 10～35 parts of deionized waters, 0.5～3 part of viscosity stabilizer; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.Described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
Described aqueous inorganic aluminium colloidal sol resin is the commercially available prod, and specification is that the resin modulus is 10.0.
The preparation method of coating of the present invention, comprise the steps: with parts by weight to be: 10～35 parts of deionized waters, 15～35 parts aqueous inorganic aluminium colloidal sol resin, 5～15 parts of aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin join in the mixing kettle successively, high-speed stirring 30～60 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 0.5～10 part of organic synthesis emulsion that slowly drips, temperature is controlled at 60 ℃～80 ℃, dropwises rear insulation 2.5～3 hours, cooling, temperature in the kettle disperses to add 0.5～3 portion of viscosity stabilizer less than low speed below 40 ℃, stirs 10～15 minutes; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.Described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
The invention will be further described with regard to specific embodiment for the below:
Embodiment one: coating of the present invention is made of by weight following component: 15 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 25 parts of bauxitic clays, 15 parts of kaolin, 2 parts of organosilicon crylic acid latexs, 32 parts of deionized waters, 1 part of inorganic bentonite.
The preparation method is as follows: 15 parts of 32 parts of deionized waters, 15 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 25 parts of bauxitic clays, kaolin are joined in the mixing kettle successively, and high-speed stirring 30 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 2 parts of the organosilicon crylic acid latexs that slowly drip, temperature is controlled at 75 ℃, dropwises rear insulation 2.5 hours, cooling, temperature in the kettle disperses to add 1 part of inorganic bentonite less than low speed below 40 ℃, stirs 10 minutes.
The present embodiment advantage is: coating has preferably can opening, and viscosity is high, good stability.
Embodiment two: coating of the present invention is made of by weight following component: 20 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 23 parts of bauxitic clays, 8 parts of kaolin, 2 parts of benzene emulsions, 35 parts of deionized waters, 2 parts of Vltra tearss.
The preparation method is as follows: 8 parts of 35 parts of deionized waters, 20 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 23 parts of bauxitic clays, kaolin are joined in the mixing kettle successively, and high-speed stirring 45 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 2 parts of the benzene emulsions that slowly drip, temperature is controlled at 60 ℃, dropwises rear insulation 3 hours, cooling, temperature in the kettle disperses to add 2 parts of Vltra tearss less than low speed below 40 ℃, stirs 12 minutes.
The present embodiment advantage is: coating has preferably processibility, and production link is more easy to control.
Embodiment three: coating of the present invention is made of by weight following component: 30 parts of aqueous inorganic aluminium colloidal sol resins, 15 parts in aluminum oxide, 15 parts of bauxitic clays, 12 parts of kaolin, 10 parts of acetic acid tertiary carbon acid esters emulsions, 15 parts of deionized waters, 3 parts of sodium alginates.
The preparation method is as follows: 12 parts of 15 parts of deionized waters, 30 parts of aqueous inorganic aluminium colloidal sol resins, 15 parts in aluminum oxide, 15 parts of bauxitic clays, kaolin are joined in the mixing kettle successively, and high-speed stirring 50 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 10 parts of the acetic acid tertiary carbon acid esters emulsions that slowly drip, temperature is controlled at 80 ℃, dropwises rear insulation 2.75 hours, cooling, temperature in the kettle disperses to add 3 parts of sodium alginates less than low speed below 40 ℃, stirs 15 minutes.
The present embodiment advantage is: coating good fluidity, constructability.
Embodiment four: coating of the present invention is made of by weight following component: 25 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 18 parts of bauxitic clays, 11 parts of kaolin, 8 parts of pure-acrylic emulsions, 25 parts of deionized waters, 3 parts of alkali swelling base polymers.
The preparation method is as follows: 11 parts of 25 parts of deionized waters, 25 parts of aqueous inorganic aluminium colloidal sol resins, 10 parts in aluminum oxide, 18 parts of bauxitic clays, kaolin are joined in the mixing kettle successively, and high-speed stirring 60 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 8 parts of the pure-acrylic emulsions that slowly drip, temperature is controlled at 65 ℃, dropwises rear insulation 2.5 hours, cooling, temperature in the kettle disperses to add 3 parts of alkali swelling base polymers less than low speed below 40 ℃, stirs 11 minutes.
The present embodiment advantage is: the paint machine good stability has preferably viscosity retention.
Since the invention belongs to the high temperature slab under the oxidizing atmosphere heating condition, have anti-oxidation, the flaky a kind of environment-friendly type coating of chilling, from heating steel billet following quality index is proposed for the functional requirement of coating and characteristic two aspects of coating itself:
Index 1: film-forming properties; Index 2: stability; Index 3: high thermal resistance; Index 4: spalling;
Below provide the Comparative Examples of prescription of the present invention, prescription is take parts by weight as unit.
Table 1 prescription (consumption/part):
The main quality index of table 2:
Shown by upper table, adopt prescription and the manufacture method of the coating of prescription 1 provided by the invention, can obtain a kind of high temperature resistant, generally applicable steel grade, water soluble paint, chilling easily peels off, safety and environmental protection, antioxidizing paint easy to use, and manufacturing cost is low, and simple on-site is feasible.
Application examples:
Coating of the present invention uses at certain Steel Mill's high-temperature heater, and application obtains the effect of using preferably.
1) coating of the present invention is comprised of materials such as high temperature resistant inorganic material and metallic compounds, and major ingredient has boron oxide, inorganic silicon and aluminum oxide etc.
2) coating of the present invention is single-component water-based coating, does not substantially have volatilizable part of gas (VOC) to discharge in process furnace, and coating is thick pulpous state and environmental protection.
3) physical parameter:
Paint film color: camel; Build: 50～100 microns; Wet-film thickness: 83～166 microns; Density: 1.55kg/kL; Volume solid part: 60 ± 2%; Theoretical spreading rate: 7.80 m
2/ kg, 12 m
2/ kL (pressing 50 microns calculating of dry film); Flash-point: water-based is not fired; Time of drying: surface drying (25 ℃)＜1 hour; Did solid work (25 ℃) 1 hour; Overcoating interval temperature: 10 ℃, 20 ℃, 30 ℃; Shortest time (hour): 3,2,1; Maximum duration is unrestricted.
4) constructional method:
Brush: generally brush 2～3 times and can reach recommendation thickness; Aerial spraying: nozzle 2～3mm, more than the suction pipe 10mm, pressure is greater than 0.4MPa; Airless spraying: 12～15 MPa(are for reference).
5) thinner: tap water.
6) the steel basal plane requires: need not special processing, only need the surperficial rubbish of cleaning or obvious dust etc.
One, process of the test:
7 blocks of slabs are brushed in the 1st test altogether, and 1 is not coated with, and are not coated with slab after heating finishes and directly melt down, and have been coated with slab and have melted down 1.Melt down and rear the iron scale production is compared, check simultaneously the roller milling large plate surface quality.
8 blocks of slabs are brushed in the 2nd test altogether, and brushing method and thickness are adjusted.Melt down 1 block of slab, and the iron scale that produces is checked, check simultaneously the roller milling large plate surface quality.
Two, technical requirements:
A painting way: use Cylinder coating brush, brush 2 times;
B slab lower surface is not brushed, because of dangerous;
C coating coats again shove charge of rear seasoning;
D heats rules: by different slab thickness normal heating.
Three, test-results and analysis:
1. trial sheet:
2. iron scale assay:
A, assay:
B, sample and analysis of experiments thereof
Behind the steel billet brushing high temperature anti-oxidation coating, form the iron scale thin and fragile, come off with regard to explosion when coming out of the stove rear naturally cooling, need not to root out with other means, billet surface is smooth.
Shown that by trial sheet large plate surface quality meets the requirements behind the billet rolling.
C, shown by the iron scale assay, behind the brushing high-temperature oxidation resistant coating, the content of silicon, aluminium, boron obviously increases before than brushing in the iron scale, illustrates that inorganic materials that kylin board antioxidant coating is contained and metal oxide and proportioning thereof have reached the requirement of steel billet high-temperature oxidation resistant fully.Its mechanism is under the worst hot case condition, to have played the effect of barrier and electrochemical protection steel billet.Boron oxide and inorganic silicon at high temperature can form fine and close protective layer at billet surface, and shielding has completely cut off contacting of oxidizing atmosphere and steel billet.The electropotential of aluminum oxide is lower than iron, and aluminum oxide becomes anode, and iron becomes negative electrode and obtained certain protection.
The result shows:
Be coated with steel billet and obtained good protection when heating, rolling rear large plate surface quality meets the requirements fully.
Under the normal heating condition, the iron scale mean thickness is reduced to less than 1.0mm from the 2.5mm of routine, and thin and fragile, is easy to be eliminated.
Claims (5)
1. water-based high-temperature-resistant oxidation-resistant inorganic paint, it is characterized in that: mainly formed by weight by following component: 15～35 parts of aqueous inorganic aluminium colloidal sol resins, 5～15 parts in aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin, 0.5～10 part of organic synthesis emulsion, 10～35 parts of deionized waters, 0.5～3 part of viscosity stabilizer; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.
2. described water-based high-temperature-resistant oxidation-resistant inorganic paint according to claim 1 is characterized in that: described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
3. described water-based high-temperature-resistant oxidation-resistant inorganic paint according to claim 1, it is characterized in that: the resin modulus of described aqueous inorganic aluminium colloidal sol resin is 10.0.
4. the preparation method of a water-based high-temperature-resistant oxidation-resistant inorganic paint as claimed in claim 1, it is characterized in that: comprise the steps: with parts by weight to be: 10～35 parts of deionized waters, 15～35 parts aqueous inorganic aluminium colloidal sol resin, 5～15 parts of aluminum oxide, 10～35 parts of bauxitic clays, 5～15 parts of kaolin join in the mixing kettle successively, high-speed stirring 30～60 minutes gets mixture; The mixture that stirs is put into shredder to be ground, grind the mixture fineness less than 50 microns, then put into reactor, low speed disperses lower 0.5～10 part of organic synthesis emulsion that slowly drips, temperature is controlled at 60 ℃～80 ℃, dropwises rear insulation 2.5～3 hours, cooling, temperature in the kettle disperses to add 0.5～3 portion of viscosity stabilizer less than low speed below 40 ℃, stirs 10～15 minutes; Described organic synthesis emulsion is chosen a kind of in organosilicon crylic acid latex, acetic acid tertiary carbon acid esters emulsion, pure-acrylic emulsion, benzene emulsion, acrylate and vinyl acetate emulsion.
5. the preparation method of water-based high-temperature-resistant oxidation-resistant inorganic paint according to claim 4 is characterized in that: described viscosity stabilizer be choose in inorganic bentonite, alkali swelling base polymer, Vltra tears, the sodium alginate a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004574 CN102173648B (en) | 2011-01-11 | 2011-01-11 | Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004574 CN102173648B (en) | 2011-01-11 | 2011-01-11 | Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173648A CN102173648A (en) | 2011-09-07 |
| CN102173648B true CN102173648B (en) | 2013-03-13 |
Family
ID=44516946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110004574 Expired - Fee Related CN102173648B (en) | 2011-01-11 | 2011-01-11 | Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102173648B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850870A (en) * | 2012-08-30 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | High temperature-resistant and cold-resistant pavement marking paint |
| CN103173044B (en) * | 2013-04-18 | 2015-09-23 | 河北海丽特种石墨制造有限公司 | A kind of high-temp. resistant antioxidation coating |
| CN103525141B (en) * | 2013-09-16 | 2016-05-04 | 安徽欧尚建材有限公司 | A kind of aqueous high-temperature-resistant inorganic coating |
| CN103665966A (en) * | 2013-11-27 | 2014-03-26 | 王传福 | Water-borne aluminum sol coating |
| CN103756560A (en) * | 2013-12-31 | 2014-04-30 | 上海大通涂料化工有限公司 | Water-based high-temperature-resistant coating and preparation method thereof |
| CN104109406B (en) * | 2014-05-27 | 2016-06-22 | 中国科学院过程工程研究所 | A kind of water base protective coating adhering to high temperature billet steel and preparation method thereof |
| CN104263105A (en) * | 2014-09-04 | 2015-01-07 | 上海露蕾化工（六安）有限公司 | Anti-aging waterproof coating |
| CN104277639A (en) * | 2014-10-29 | 2015-01-14 | 安徽朗凯奇建材有限公司 | Abrasion-resistant bactericidal self-cleaning waterproof coating and preparation method thereof |
| CN104592792B (en) * | 2015-02-05 | 2016-11-16 | 四川明鑫佳杰新材料有限责任公司 | A kind of inorganic cracking resistance aging resistant coating and preparation method thereof |
| CN104877397B (en) * | 2015-05-21 | 2017-11-07 | 石家庄炳欣冶金炉料有限公司 | A kind of steel billet high temperature protective coating and its application |
| CN104927645A (en) * | 2015-06-11 | 2015-09-23 | 合肥和安机械制造有限公司 | Composite water-soluble resin coating with high anti-corrosion property for exhaust pipe of forklift engine and preparation method thereof |
| CN106009937A (en) * | 2016-08-01 | 2016-10-12 | 安庆瑞泰化工有限公司 | Antioxidant water-based coating and preparation method thereof |
| CN106189600A (en) * | 2016-08-15 | 2016-12-07 | 昌吉州准东经济技术开发区唯新能源科技有限公司 | Electrolytic aluminium carbon anode surface high temperature resistance antioxidant coating and preparation method thereof |
| CN107500790B (en) * | 2017-08-11 | 2019-12-31 | 河南华西耐火材料有限公司 | High-temperature decarburization-resistant coating and preparation method thereof |
| CN111172370B (en) * | 2020-01-06 | 2022-02-15 | 巩义市科正冶金材料有限公司 | Steel billet anti-oxidation coating and preparation method and application thereof |
| CN111489865B (en) * | 2020-03-31 | 2021-07-30 | 昆明理工大学 | Preparation method of self-promoting antioxidant copper electrode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101781483A (en) * | 2009-12-04 | 2010-07-21 | 上海瓷龙化工有限公司 | Environmental protection type high-temperature resistant nano paint and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491178A (en) * | 1990-08-07 | 1992-03-24 | Ube Ind Ltd | Heat-resistant paint |
| CN101805530B (en) * | 2009-02-13 | 2012-11-14 | 上海宜瓷龙新材料科技有限公司 | High-temperature resistance oil product oxidization resistance paint and preparation method thereof |
| CN101693791B (en) * | 2009-11-02 | 2011-07-20 | 北京科技大学 | Continuous casting slab high-temperature oxidation resistant coatings and preparation process thereof |
-
2011
- 2011-01-11 CN CN 201110004574 patent/CN102173648B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101781483A (en) * | 2009-12-04 | 2010-07-21 | 上海瓷龙化工有限公司 | Environmental protection type high-temperature resistant nano paint and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102173648A (en) | 2011-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102173648B (en) | Water-based high-temperature-resistant oxidation-resistant inorganic paint and preparation method thereof | |
| CN101693791B (en) | Continuous casting slab high-temperature oxidation resistant coatings and preparation process thereof | |
| CN101426938B (en) | An anti-oxidation coating for steel and method of protecting steel from oxidation | |
| CN104177873B (en) | High-temperature protective coating for high-carbon steel billet and application thereof | |
| CN101462859B (en) | High-temperature antioxidizing paint for lowering oxidation burning of steel in heating furnace | |
| CN101928480B (en) | Method for preparing magnesia carbon brick non-aluminum antioxidant coating | |
| CN105110766A (en) | Ceramic paint and application thereof | |
| CN102786822A (en) | Natural mineral-based high-temperature anti-oxidation decarbonization coating | |
| KR102051934B1 (en) | Ceramic Coat Composition having High Heat Resistance | |
| CN103193387A (en) | Enamel material for 1Cr18Ni9Ti stainless steel surface and preparation method thereof | |
| CN109694210A (en) | A kind of modified Portland compound binding agent and the preparation method and application thereof | |
| CN110743765A (en) | Titanium alloy ingot surface glass coating and preparation method thereof | |
| CN102532964A (en) | Carbon-containing refractory material anti-oxidation coating | |
| CN113667348A (en) | Anti-oxidation and anti-decarbonization isolation binder and preparation method thereof | |
| CN108822590A (en) | A kind of high temperature protective coating and preparation method thereof for steel hot rolling technology | |
| CN105330159A (en) | Glaze of coke oven door lining brick and processing method thereof | |
| CN102391001A (en) | High-temperature burnout-resistance billet coating and preparation method thereof | |
| SE461662B (en) | COATED TO APPLY ENAMEL COATING CONTAINING POWDERED METAL ON A METAL SUBSTRATE | |
| KR20140043112A (en) | Casting component and method for the application of an anticorrosive layer | |
| CN114045053A (en) | Decarburization-preventing separant | |
| CN106588049A (en) | Silicon-free and carbon-free corundum water port stopper rod product for continuous casting and preparation process thereof | |
| CN1354206A (en) | High-temp. resistant antioxidation coating for graphite electrode | |
| JP2601317B2 (en) | Inorganic heat-resistant composition | |
| CN103614725B (en) | A kind of enamel method | |
| CN101935207B (en) | Film forming materials, organic silicon resin emulsions and protective coatings used for muffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20200111 |