CN112299814B - Inorganic heat-insulating coating for cooling steel material and use method thereof - Google Patents
Inorganic heat-insulating coating for cooling steel material and use method thereof Download PDFInfo
- Publication number
- CN112299814B CN112299814B CN202011186453.XA CN202011186453A CN112299814B CN 112299814 B CN112299814 B CN 112299814B CN 202011186453 A CN202011186453 A CN 202011186453A CN 112299814 B CN112299814 B CN 112299814B
- Authority
- CN
- China
- Prior art keywords
- coating
- powder
- inorganic heat
- insulating coating
- water glass
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00525—Coating or impregnation materials for metallic surfaces
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Ceramic Products (AREA)
Abstract
The invention relates to the technical field of heat insulation coatings, and particularly discloses an inorganic heat insulation coating for cooling steel materials and a using method thereof. When the heat insulation coating disclosed by the patent is used for thermal examination, the examination temperature is 1000-1100 ℃, the back surface temperature is 200-800 ℃, the examination time is 300h, the heat insulation coating can be used for a long time, the heat insulation gradient is 600-800 ℃, and the coating strength is 20-30 MPa.
Description
Technical Field
The invention relates to the technical field of heat insulation coatings, in particular to an inorganic heat insulation coating for cooling steel materials and a using method thereof.
Background
The energy consumption of steel production accounts for about 10% of the total energy consumption of the whole country, and the heat insulation material is an important component of steel production equipment and has great influence on the energy consumption of the equipment; at present, heat insulation materials used in the steel industry mainly comprise products such as heat insulation bricks, ceramic fibers, calcium silicate and the like, the heat insulation effect of the materials is still acceptable at low temperature, but the heat conductivity coefficient is also sharply increased along with the high increase of the use temperature, and the heat insulation performance is rapidly reduced.
The operating temperature of steel industry equipment is usually higher, and the service environment is severe. Conventional insulation materials tend to be inadequate or ineffective. For example, in the case of a ladle used for transportation or casting, a method of thickening a ladle lining is often adopted in order to reduce the temperature drop of the ladle, but under the condition that the ladle is not baked sufficiently, the excessively thick ladle lining absorbs a large amount of heat, and the temperature drop is increased. Generally, the thickness of the existing ladle lining is difficult to thicken without reducing the capacity of the existing ladle lining, so a layer of heat-insulating material is considered to be added into the steel shell.
The nanometer microporous heat insulating material is considered as a high-temperature material with the best heat insulating effect, is gradually accepted and applied to steel-making equipment at present, greatly reduces the surface temperature of the equipment, obviously reduces the heat loss of the equipment, improves the product quality, improves the production efficiency, reduces the production cost of steel, can keep a very low heat conductivity coefficient in a wider temperature range by the current commonly used nanometer microporous heat insulating material, although the highest service temperature which can be reached at present is about 1000 ℃, the thermal conductivity is higher, in the process of transporting the steel ladle, the temperature of the high-temperature molten steel can be quickly transferred to the steel ladle, so that the heat preservation performance of the steel ladle is insufficient, the performance of the high-temperature resistant coating created in China currently cannot meet the requirement standard, the protective effect of the produced coating on steel materials is not obvious, the highest use temperature is low, the physical property of the coating is not firm, and the coating is easy to fall off.
Disclosure of Invention
The invention provides an inorganic heat-insulating coating for cooling steel materials and a using method thereof, and aims to solve the problems that in the prior art, the performance of a high-temperature-resistant coating can not meet the required standard, the produced coating has an unobvious protective effect on the steel materials, the highest using temperature is low, the physical properties of the coating are not firm, and the coating is easy to fall off.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an inorganic heat insulation coating for cooling steel materials is formed by solidifying an inorganic heat insulation coating, wherein the raw materials of the inorganic heat insulation coating comprise powder, a water glass solution, basalt fiber and cellulose, and the powder comprises cement, fly ash, slag powder, wollastonite powder, aluminum dihydrogen phosphate, aluminum hydroxide, rare earth tantalate, silicon dioxide aerogel, expanded perlite powder, magnesium oxide, calcium oxide and sodium fluosilicate.
The technical principle and the effect of the technical scheme are as follows:
the raw materials of the scheme select inorganic materials, inorganic fibers and inorganic binders with low thermal conductivity and high thermal expansion coefficient as synthetic coatings to obtain the inorganic heat-insulating coating material for cooling the steel material, and during thermal examination, the examination temperature is 1000-1100 ℃, the back temperature is 200-800 ℃, the examination time is 300h, the inorganic heat-insulating coating material can be used for a long time, the heat-insulating gradient is 600-800 ℃, and the coating strength is 20-30 MPa.
The scheme utilizes the principle of concrete preparation, wherein the hydration heat release of the fly ash in the powder is little, so that the hydration heat release is reduced, the temperature rise of the coating is reduced, and simultaneously, the amount of calcium hydroxide which is easy to corrode in the cement is reduced due to secondary reaction, so that the impermeability of the coating can be improved after the fly ash is added. Meanwhile, because the fly ash has large specific surface area and strong adsorption capacity, fly ash particles can adsorb alkali in cement and react with the alkali to consume the alkali, and the reduction of the amount of free alkali can inhibit or reduce the alkali-aggregate reaction.
The silica fume powder in the powder is fine, the particle size is about 0.1um, the fluidity is good, the coating doped with the silica fume is dense, the pore structure is improved, and the impermeability is strong, so that the transfer speed of harmful ions is reduced, and the solubility of Ca (OH) is reduced2And ettringite, so the coating can resist the erosion of acid and salt and improve the self abrasion resistance and hardness of the coating.
The addition of a proper amount of slag powder can improve the fluidity of the coating, reduce the hydration heat of cement, improve the impermeability of concrete, improve the later strength, improve the internal structure of the coating and improve the impermeability and corrosion resistance.
The aluminum dihydrogen phosphate is used as a binding material and simultaneously generates high-melting-point refractory heat-insulating material aluminum phosphate with amphoteric aluminum hydroxide, the melting point of the water glass is 1088 ℃, the thermal conductivity is low, the binding performance is strong, and the compactness and the binding strength of the coating material can be improved.
The rare earth tantalate is a thermal barrier coating material with low thermal conductivity of 1.1-1.4W.M-1.K-1The heat insulation material has good heat insulation effect and thermodynamic property; silica in powderThe aerogel is a novel low-density, transparent, controllable nanometer porous material of structure, compares with traditional silica granule, and silica aerogel has continuous three-dimensional network structure, has mechanism characteristics such as low density, high porosity, high specific surface area, has excellent heat preservation heat-proof quality simultaneously, and the heat conductivity is extremely low under the normal atmospheric temperature and pressure, is the solid material that the heat conductivity is the lowest at present known, utilizes silica aerogel not only to have thermal-insulated effectual, and can reduce coating density for the coating is difficult for droing from the steel material base member.
The expanded perlite in the powder has small volume weight and low thermal conductivity, the fire-resistant temperature is 1300-1380 ℃, the particle size is 700-800 microns, and the expanded perlite can be used as a filling material of a fire-resistant material, but the expanded perlite has high thermal expansion coefficient, can be added in a small amount to improve the porosity of the material, reduce the coating density and adjust the thermal expansion coefficient of the coating material.
The magnesium oxide, the calcium oxide and the sodium fluosilicate in the powder are used as a water glass curing agent, the water glass solution can be subjected to dehydration reaction, the curing rate of the coating is improved, and the calcium oxide and the magnesium oxide are used as refractory materials, and the temperature resistance limit of the materials can also be improved.
The basalt fiber is an inorganic ceramic fiber, has high strength and permanent flame retardance, can resist temperature of over 1000 ℃ in a short period, can be used in a 760 ℃ temperature environment for a long time, can further improve the cooling gradient, and can also improve the binding force and toughness of a coating.
The cellulose is oxidized to generate carbon dioxide in the high-temperature heating process, namely when the coating is used in a high-temperature environment, and tiny air holes are left in the coating, so that the defects of the coating become large, the mean free path of phonon scattering is reduced, and the thermal conductivity of the coating is further reduced.
Further, the mass part ratio of cement, fly ash, slag powder, wollastonite powder, aluminum dihydrogen phosphate, aluminum hydroxide, rare earth tantalate, silicon dioxide aerogel, expanded perlite powder, magnesium oxide, calcium oxide, sodium fluosilicate, water glass solution, basalt fiber and cellulose in the powder is 5-6: 1-2: 0.5-0.6: 0.6-0.9: 2-3: 2-3: 2-3: 1-2: 1-2: 0.6-0.8: 0.6-0.8: 0.6-0.8: 10-12: 0.03 to 0.04: 0.03 to 0.04.
Has the advantages that: experiments prove that the coating obtained under the condition of raw material proportioning in the scheme has low heat conductivity and good heat insulation effect.
Furthermore, a defoaming agent is added into the raw materials, and the defoaming agent accounts for 1-2 per mill of the total mass of the raw materials.
Has the advantages that: the function of the antifoam is to eliminate foaming during mixing.
Further, the cement in the powder is high-strength refractory aluminate cement, and the specific surface area of the high-strength refractory aluminate cement is 380-400 m2Perkg, compressive strength of 120-150 MPa.
Has the advantages that: the high aluminate cement has refractory temperature up to 1600 deg.c, heat conductivity of 0.03W/(m.K), and heat insulating effect and long service life, and may be used as the material for coating at temperature below 1100 deg.c.
The invention also discloses a using method of the inorganic heat-insulating coating for cooling the steel material, which comprises the steps of stirring powder, the water glass solution, basalt fiber and cellulose to be viscous to obtain the inorganic heat-insulating coating, welding a plurality of nails on the surface of a steel plate, coating the coating on the steel plate, curing, and carrying out periodic maintenance by using the water glass solution.
The inorganic material with low thermal conductivity and high thermal expansion coefficient is selected, the inorganic fiber and the inorganic binder water glass are added to obtain the inorganic heat-insulating coating material for cooling the steel material, the inorganic heat-insulating coating material is coated on the steel and cured, the water glass solution is used for periodic maintenance, the carbon dioxide gas is used for curing the surface water glass solution, and a compact and smooth high-temperature-resistant anti-oxidation water glass protective coating is formed on the surface of the inorganic heat-insulating coating material. When the heat insulation coating is used for thermal examination, the examination temperature is 1000-1100 ℃, the back surface temperature is 200-400 ℃, the examination time is 300h, the heat insulation coating can be used for a long time, the heat insulation gradient is 600-800 ℃, and the coating strength is 20-30 MPa.
Further, the thickness of the inorganic heat insulation coating is 15-20 mm.
Has the advantages that: the coating thickness can satisfy the heat insulation and preservation of steel materials such as steel ladles.
Further, the rare earth carbonate in the powder is hollow spherical powder.
Has the advantages that: the hollow spherical powder prepared by the rare earth tantalate can further reduce the thermal conductivity of the coating and improve the cooling gradient. The reason is that the thermal conductivity is in direct proportion to the phonon scattering mean free path, while the higher the porosity in the material, the smaller the phonon scattering mean free path is, but the higher the porosity is, the compactness of the material cannot be guaranteed, and the scheme adopts the hollow spherical powder to form closed 'pores' inside the coating, so that the thermal conductivity of the coating is further reduced, and the compactness of the coating cannot be reduced.
Detailed Description
The following is further detailed by way of specific embodiments:
example 1:
an inorganic heat insulation coating for cooling steel materials is formed by curing an inorganic heat insulation coating, wherein the specific preparation process of the inorganic heat insulation coating comprises the following steps:
600g of high aluminate cement, 200g of fly ash, 60g of slag powder, 90g of silica fume powder, 300g of aluminum dihydrogen phosphate, 300g of aluminum hydroxide, 300g of rare earth tantalate hollow spherical powder, 200g of silicon dioxide aerogel, 200g of expanded perlite powder, 80g of magnesium oxide, 80g of calcium oxide and 80g of sodium fluosilicate are weighed and placed in a stirrer to be stirred to obtain powder.
1.2kg of water glass solution, 4g of inorganic fiber basalt and 40g of cellulose are added into a stirrer and continuously stirred until the mixture becomes thick slurry, and the inorganic heat-insulating coating is obtained. In this embodiment, the basalt fiber mainly includes oxides such as silica, alumina, calcium oxide, magnesium oxide, iron oxide, and titanium dioxide.
The preparation method of the rare earth tantalate hollow spherical powder in the embodiment comprises the following steps:
weighing rare earth oxide and tantalum pentoxide, placing the rare earth oxide and the tantalum pentoxide into a ball milling tank together with absolute ethyl alcohol, mixing, sealing, placing on a planetary ball mill for ball milling to enable the rare earth oxide and the tantalum pentoxide to be uniformly mixed, drying and sieving the mixed powder, and sintering; and (2) crushing and ball-milling the sintered product by using a crusher and a ball mill respectively, adding a binder and deionized water, adding a defoaming agent to remove bubbles on the surface layer, and performing spray granulation on the slurry by using spray drying equipment to obtain the rare earth carbonate hollow spherical powder.
The use method of the inorganic coating comprises the following steps:
performing surface treatment on a steel plate by using acetone and abrasive paper, performing shot blasting treatment, welding rivets with certain lengths on the steel plate, coating a coating on the steel plate, wherein the thickness of the coating is 15mm, wrapping and covering the steel plate by using a preservative film, brushing and maintaining the coating for 8 times every 4 hours after 12 hours, brushing and maintaining the coating for 8 times by using a water glass solution every 12 hours, obtaining an inorganic heat-insulation coating for cooling after the coating is completely cured, and performing a thermal shock test on the coating after the coating is completely cured, wherein the front surface temperature of the coating is 1100 ℃, the back surface temperature of the coating is 395 ℃, and the heat-insulation gradient is 595 ℃.
Example 2:
the difference from the embodiment 1 is that the components are different in proportion, 500g of high aluminate cement, 100g of fly ash, 50g of slag powder, 60g of silica fume powder, 200g of aluminum dihydrogen phosphate, 200g of aluminum hydroxide, 200g of tantalate hollow spherical powder, 100g of silicon dioxide aerogel, 100g of expanded perlite powder, 60g of magnesium oxide, 60g of calcium oxide and 60g of sodium fluosilicate are weighed, and the materials are placed in a stirrer to be uniformly dry-mixed to obtain powder.
1kg of water glass solution, 30g of inorganic fiber basalt and 30g of cellulose are added into a stirrer, and stirring is continued until the mixture becomes thick slurry, so that the inorganic heat-insulating coating is obtained.
The use method of the inorganic coating comprises the following steps:
performing surface treatment on a steel plate by using acetone and sand paper, performing shot blasting treatment, welding rivets with certain lengths on the steel plate, coating a coating on the steel plate, wherein the thickness of the coating is 20mm, wrapping and covering the steel plate by using a preservative film, after 12 hours, brushing and maintaining the coating for 6 times by using a water glass solution every 5 hours, then brushing and maintaining the coating for 5 times by using the water glass solution every 15 hours, after the coating is completely cured, obtaining an inorganic heat-insulating coating for cooling, and after the coating is completely cured, performing a thermal shock test on the coating, wherein the front surface temperature of the coating is 1100 ℃, the back surface temperature of the coating is 380 ℃, and the heat-insulating gradient is 720 ℃.
The foregoing is merely an example of the present invention and common general knowledge of the known specific materials and characteristics thereof has not been described herein in any greater extent. It should be noted that, for those skilled in the art, without departing from the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. An inorganic heat insulation coating for cooling steel materials is characterized in that: the inorganic heat-insulating coating is formed by curing an inorganic heat-insulating coating, wherein the raw materials of the inorganic heat-insulating coating comprise powder, a water glass solution, basalt fiber and cellulose, and the powder comprises cement, fly ash, slag powder, silica fume powder, aluminum dihydrogen phosphate, aluminum hydroxide, rare earth tantalate, silicon dioxide aerogel, expanded perlite powder, magnesium oxide, calcium oxide and sodium fluosilicate;
the raw materials comprise 5-6 parts by mass of cement, fly ash, slag powder, wollastonite powder, aluminum dihydrogen phosphate, aluminum hydroxide, rare earth tantalate, silicon dioxide aerogel, expanded perlite powder, magnesium oxide, calcium oxide, sodium fluosilicate, a water glass solution, basalt fiber and cellulose: 1-2: 0.5-0.6: 0.6-0.9: 2-3: 2-3: 2-3: 1-2: 1-2: 0.6-0.8: 0.6-0.8: 0.6-0.8: 10-12: 0.03 to 0.04: 0.03 to 0.04 percent;
the cement in the powder is high-strength refractory aluminate cement, the specific surface area of the high-strength refractory aluminate cement is 380-400 m2/Kg, and the compressive strength of the high-strength refractory aluminate cement is 120-150 MPa.
2. The inorganic heat insulating coating for cooling a ferrous material according to claim 1, characterized in that: the defoaming agent is added into the raw materials, and the defoaming agent accounts for 1-2 per mill of the total mass of the raw materials.
3. The inorganic heat insulating coating for cooling a ferrous material according to claim 1, characterized in that: the rare earth tantalite in the powder is hollow spherical powder.
4. The use method of the inorganic heat-insulating coating for cooling a ferrous material according to claim 1, characterized in that: stirring the powder, the water glass solution, the basalt fiber and the cellulose to be viscous to obtain an inorganic heat-insulating coating, welding a plurality of rivets on the surface of a steel plate, coating the coating on the steel plate, curing, periodically maintaining by using the water glass solution, curing the surface water glass solution by using carbon dioxide gas, and forming a water glass protective coating on the surface of the surface.
5. The use method of the inorganic heat-insulating coating for cooling a ferrous material according to claim 4, characterized in that: the thickness of the inorganic heat-insulating coating is 15-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186453.XA CN112299814B (en) | 2020-10-29 | 2020-10-29 | Inorganic heat-insulating coating for cooling steel material and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186453.XA CN112299814B (en) | 2020-10-29 | 2020-10-29 | Inorganic heat-insulating coating for cooling steel material and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112299814A CN112299814A (en) | 2021-02-02 |
| CN112299814B true CN112299814B (en) | 2022-06-07 |
Family
ID=74332319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011186453.XA Active CN112299814B (en) | 2020-10-29 | 2020-10-29 | Inorganic heat-insulating coating for cooling steel material and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112299814B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304363B (en) * | 2022-08-11 | 2023-08-18 | 昆明理工大学 | Heat-resistant steel oxidation-resistant protective coating material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648185A (en) * | 2004-10-22 | 2005-08-03 | 厦门大学 | Polymer modified cement base thick coated type steel structure fire-proof paint |
| CN103043976A (en) * | 2013-01-18 | 2013-04-17 | 宝鸡市铁军化工防腐安装有限责任公司 | Thin fire-resistant/flame-retardant paint for tunnel and preparation method thereof |
-
2020
- 2020-10-29 CN CN202011186453.XA patent/CN112299814B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648185A (en) * | 2004-10-22 | 2005-08-03 | 厦门大学 | Polymer modified cement base thick coated type steel structure fire-proof paint |
| CN103043976A (en) * | 2013-01-18 | 2013-04-17 | 宝鸡市铁军化工防腐安装有限责任公司 | Thin fire-resistant/flame-retardant paint for tunnel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112299814A (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108610063B (en) | High-performance mullite heat-insulating refractory castable | |
| CN107032810B (en) | Gunning mix with excellent bonding performance for sintering large flue and preparation method | |
| CN101808763B (en) | The refractory material of calcium is rich in by adding calcium carbonate | |
| CN107573098A (en) | A kind of lightweight castable for sintering ignition furnace | |
| US5783510A (en) | Monolithic refractory composition wall | |
| CN106830958B (en) | Low-aluminum low-heat-conduction alkali-resistant castable | |
| CN109467413A (en) | Continuous casting production no paper fibers magnesia coating and preparation method thereof | |
| CN110668830A (en) | Preparation method of novel mullite-combined light castable | |
| CN114195529B (en) | High-strength magnesia refractory mortar for refining ladle | |
| CN107032805A (en) | A kind of ladle Ultra-low carbon Periclase spinel carbon brick and preparation method | |
| CN112299814B (en) | Inorganic heat-insulating coating for cooling steel material and use method thereof | |
| CN111499249A (en) | Admixture for improving marine concrete impermeability and retarding reinforcing steel bar corrosion, and preparation method and application thereof | |
| CN113233908A (en) | Regenerated carbon-free brick and preparation method thereof | |
| CN106977216B (en) | Anti-erosion liner and preparation method thereof for aluminium melting furnace | |
| CN114763302B (en) | Refractory castable for lime spray gun and preparation method and application thereof | |
| CN112645698A (en) | Aluminum titanium silicon carbide composite refractory castable for iron-making blast furnace | |
| CN109809803A (en) | A kind of fish torpedo ladle permanent layer coating | |
| CN113087538B (en) | Steel ladle working lining prefabricated brick containing microporous aggregate | |
| CN114874003A (en) | Low-heat-conduction steel ladle permanent layer castable containing calcium hexaluminate | |
| JP2002234776A (en) | Monolithic refractory composition for molten steel ladle | |
| CN110776325B (en) | Zeolite modified cement combined chromium-containing corundum castable and preparation method thereof | |
| US8747546B2 (en) | Calcium enriched refractory material by the addition of calcium carbonate | |
| CN110872192A (en) | Nanometer coating for permanent layer of torpedo ladle and preparation method thereof | |
| CN116178993B (en) | Spray paint for spherical roof of iron-making hot blast stove and baking method thereof | |
| Tomšůu et al. | From Conventional Refractory Castables to Actual High-Quality Hydraulic Bonded Products–Development during the Last Forty Years |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |