CN107311673B - Protective material for ladle magnesia carbon brick and preparation method and application thereof - Google Patents
Protective material for ladle magnesia carbon brick and preparation method and application thereof Download PDFInfo
- Publication number
- CN107311673B CN107311673B CN201710537632.5A CN201710537632A CN107311673B CN 107311673 B CN107311673 B CN 107311673B CN 201710537632 A CN201710537632 A CN 201710537632A CN 107311673 B CN107311673 B CN 107311673B
- Authority
- CN
- China
- Prior art keywords
- magnesia carbon
- carbon brick
- protective material
- ladle
- brick
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
- C04B2235/365—Borosilicate glass
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/424—Carbon black
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a protective material for a ladle magnesia carbon brick, a preparation method and application thereof, wherein the material comprises the following components in percentage by mass: 25-40% of kaolin; 20-30% of boron glass powder; 10-20% of titanium dioxide; 5-12% of sodium silicate; 2-10% of polyvinyl alcohol; 2-5% of carbon black. The protective material prepared by the invention is melted into a glass-state protective film in the temperature rising process, so that air is isolated, carbon in the magnesia carbon brick can be prevented from being oxidized in the ladle baking process, the generation of a decarburized layer is inhibited, and the service life of the magnesia carbon brick is greatly prolonged. And the obtained protective material has the advantages of cheap and easily obtained raw materials, small carbon black consumption and production cost reduction. The protective material for the ladle magnesia carbon brick is suitable for industrial production, and has wide application prospect and good economic benefit.
Description
Technical Field
The invention relates to the technical field of metallurgical materials, in particular to a protective material for a ladle magnesia carbon brick, and a preparation method and application thereof.
Background
Magnesia carbon bricks are produced by using a high-melting point basic oxide magnesium oxide (melting point 2800 ℃) and a high-melting point carbon material which is difficult to be infiltrated by slag as raw materials, and adding various non-oxide additives. The composite non-charring refractory material is made up by using carbon binding agent. The magnesia carbon brick is mainly used for the inner liners of converters, alternating current electric arc furnaces and direct current electric arc furnaces, slag lines of ladles and other parts.
In the smelting process, the ladle lining needs to be baked before molten steel is filled, and the baking temperature is about 1200 ℃. As the magnesia carbon brick contains carbon materials, the magnesia carbon brick can react with oxygen in the air during baking to form a decarburized layer with the thickness of about 10-30mm, and the decarburized layer is loose and easily falls into molten steel or molten slag. Due to the decarburized layer, on one hand, the thickness of the magnesia carbon brick is reduced, and the service life of the steel ladle is shortened; on the other hand, the decarburized layer falling off into the molten steel acts as an impurity, which affects the components of the molten steel, thereby deteriorating the quality of the steel.
CN 105000897A provides a protective material for a ladle magnesia carbon brick and an application method thereof, the protective material forms a protective coating on the surface of an alumina magnesia brick, and the protective coating reduces the transmission of oxygen and carbon dioxide in the atmosphere to the surface of the magnesia carbon brick due to the oxidation of carbon black in the coating in the temperature range of room temperature to 500 ℃, thereby greatly reducing the oxidation of carbon in the magnesia carbon brick. The consumption of the magnesia carbon bricks is reduced, the service life of the ladle is prolonged, the production cost is reduced, and the use is very convenient. The consumption of the carbon black is high, the price of the carbon black is high, the cost is high in the using process, and the method is not suitable for industrialized popularization.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a protective material for a ladle magnesia carbon brick, and a preparation method and application thereof, wherein the protective material can prevent carbon in the magnesia carbon brick from being oxidized in the ladle baking process, inhibit the formation of a decarburized layer and further prolong the service life of the magnesia carbon brick.
In a first aspect, the invention provides a protective material for a ladle magnesia carbon brick, which comprises the following components in percentage by mass:
the components of the invention are matched with each other, and with the rise of temperature, the protective material is gradually melted and condensed into a glass state and is tightly adhered to the surface of the aluminum-magnesium brick, thereby isolating the contact between the aluminum-magnesium brick and air and further effectively inhibiting the formation of a decarburized layer. According to the invention, a small amount of carbon black is added, and the carbon black can be subjected to preferential combination reaction with oxygen, so that the protective material can be prevented from reacting with carbon elements in the aluminum magnesia brick to form a decarburized layer before complete vitrification.
According to the present invention, the content of kaolin in the protective material for the ladle magnesia carbon brick is 25 to 40% by mass, for example, 25%, 27%, 30%, 32%, 35%, 37% or 40%, and the specific values between the above values are limited by space and for the sake of brevity, and the present invention is not exhaustive.
According to the present invention, the content of the boron glass powder in the protective material for the magnesia carbon brick containing steel is 20-30% by mass, for example, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29% or 30%, and the specific values between the above values are not exhaustive for reasons of space and simplicity.
According to the invention, the content of titanium dioxide in the protective material for the magnesia carbon bricks in the ladle is 10-20% by mass, for example, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20%, and the specific values between the above values are limited by space and for the sake of brevity, and the invention is not exhaustive.
According to the invention, the content of sodium silicate in the protective material for the ladle magnesia carbon brick is 5-12% by mass, for example, 5%, 6%, 7%, 8%, 9%, 10%, 11% or 12%, and the specific values between the above values are limited by space and for the sake of brevity, and the invention is not exhaustive.
According to the invention, the content of polyvinyl alcohol in the protective material for the ladle magnesia carbon brick is 2-10% by mass, for example, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%, and the specific values between the above values are limited by space and for the sake of brevity, and the invention is not exhaustive.
According to the invention, the content of carbon black in the protective material for the magnesia carbon bricks in the ladle is 2-5% by mass, for example, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%, and the specific values between the above values are limited by space and for the sake of brevity, and are not exhaustive.
The sum of all components in the protective material for the ladle magnesia carbon brick is 100 percent.
As a preferable technical scheme, the material comprises the following components in percentage by mass:
as a preferable technical scheme, the material comprises the following components in percentage by mass:
according to the invention, the kaolin has a content of particle size less than 2 μm of between 90 and 95%, for example 90%, 91%, 92%, 93%, 94% or 95%, and the particular values between these values, limited to space and for the sake of brevity, are not exhaustive.
According to the invention, the titanium dioxide has a particle size of 0.5 to 2 μm, which may be, for example, 0.5 μm, 0.8 μm, 1 μm, 1.2 μm, 1.5 μm, 1.8 μm or 2 μm, and the specific values therebetween are not intended to be exhaustive for reasons of space and simplicity.
According to the invention, the carbon black has a particle size of 10 μm or less, and may be, for example, 0.1 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm or 10 μm, as well as other values less than 10 μm, which are not exhaustive for reasons of space and simplicity.
According to the invention, the material is a solid-liquid mixed slurry of the raw material components and water.
In a second aspect, the present invention provides a method for preparing the protective material for the ladle magnesia carbon brick according to the first aspect, wherein the method comprises: mixing the raw material components according to the formula ratio, adding the mixture into a stirrer, adding water into the stirrer according to the liquid-solid ratio of (3-5):1, and stirring at the speed of 200-.
The raw material components are specific components of the protective material for the ladle magnesia carbon brick in the first aspect, and the preparation process is carried out at room temperature.
According to the invention, the liquid-solid ratio of water to the components of the protective material for magnesia carbon bricks in ladles is (3-5):1, and may be, for example, 3:1, 3.5:1, 4:1, 4.5:1 or 5:1, and the specific values between the above values are not exhaustive and are not intended for the sake of brevity. The unit of the liquid-solid ratio is ml/g.
In a third aspect, the present invention provides a use of the protective material for ladle magnesia carbon brick according to the first aspect, the use is operated as follows: and coating the protective material for the ladle magnesia carbon brick on the surface of the magnesia carbon brick, and forming a protective coating on the surface of the magnesia carbon brick after natural drying or baking.
According to the invention, the thickness of the protective coating is between 0.5 and 2mm, and may be, for example, 0.5mm, 0.7mm, 1mm, 1.2mm, 1.5mm, 1.8mm or 2mm, and the specific values between the above values, which are limited by space and for the sake of brevity, are not exhaustive.
Compared with the prior art, the invention has at least the following beneficial effects:
(1) the invention can prevent the carbon in the magnesia carbon brick from being oxidized in the baking process of the ladle, inhibit the generation of a decarburized layer, further greatly prolong the service life of the magnesia carbon brick,
(2) the protective material obtained by the invention has the advantages of cheap and easily available raw materials, small carbon black consumption, reduction of production cost and good economic benefit.
Detailed Description
For the purpose of facilitating an understanding of the present invention, the present invention will now be described by way of examples. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
The invention provides a protective material for a ladle magnesia carbon brick in a specific embodiment part, which comprises the following components in percentage by mass:
the invention also provides a preparation method of the protective material for the ladle magnesia carbon brick in the specific implementation mode part, which comprises the following steps: mixing the raw material components according to the formula ratio, adding the mixture into a stirrer, adding water into the stirrer according to the liquid-solid ratio of (3-5):1, and stirring at the speed of 200-.
The following are typical but non-limiting examples of the present invention:
the raw materials used in the specific examples of the present invention are all commercially available products, and can be directly purchased.
Example 1
The protective material for the ladle magnesia carbon brick comprises the following components in percentage by mass:
the preparation method comprises the following steps:
the components with the formula ratio are mixed and then added into a stirrer, water is added into the stirrer according to the liquid-solid ratio of 3:1, and then the mixture is stirred for 10min at the speed of 1500r/min to obtain solid-liquid mixed slurry, namely the protective material for the ladle magnesia carbon brick.
Example 2
The protective material for the ladle magnesia carbon brick comprises the following components in percentage by mass:
the preparation method comprises the following steps:
the components with the formula ratio are mixed and then added into a stirrer, water is added into the stirrer according to the liquid-solid ratio of 5:1, and then the mixture is stirred for 12min at the speed of 1200r/min to obtain solid-liquid mixed slurry, namely the protective material for the ladle magnesia carbon brick.
Example 3
The protective material for the ladle magnesia carbon brick comprises the following components in percentage by mass:
the preparation method comprises the following steps:
the components with the formula ratio are mixed and then added into a stirrer, water is added into the stirrer according to the liquid-solid ratio of 4:1, and then the mixture is stirred for 15min at the speed of 500r/min to obtain solid-liquid mixed slurry, namely the protective material for the ladle magnesia carbon brick.
Example 4
The protective material for the ladle magnesia carbon brick comprises the following components in percentage by mass:
the preparation method comprises the following steps:
the components with the formula ratio are mixed and then added into a stirrer, water is added into the stirrer according to the liquid-solid ratio of 4:1, and then the mixture is stirred for 15min at the speed of 1000r/min to obtain solid-liquid mixed slurry, namely the protective material for the ladle magnesia carbon brick.
And (3) performance testing:
five magnesia carbon bricks with the same specification and the original thickness of not 50mm are prepared in the same batch, the numbers of the magnesia carbon bricks are 1, 2, 3, 4 and 5, the mixed slurry obtained in the examples 1 to 4 is respectively coated on the surfaces of the bricks 1, 2, 3 and 4, the coating thickness is 1.5mm, and the surface of the brick 5 is not coated and is a blank group. And naturally drying the magnesia carbon brick for 3 hours, and then placing the magnesia carbon brick in a muffle furnace. Heating the muffle furnace to 500 ℃ at the speed of 5 ℃/min, and preserving the heat for 8 hours; then the temperature is raised to 1200 ℃ at the speed of 10 ℃/min, and the temperature is kept for 4 h. And opening the furnace door after the heat preservation is finished, naturally cooling to room temperature, taking out the No. 1-5 magnesia carbon brick, completely removing the decarburized layer on the surface of the sample through knocking, measuring the residual thickness of the magnesia carbon brick, and comparing the residual thickness with the treated magnesia carbon brick to obtain the thickness of the decarburized layer. The results of the experiment are shown in table 1.
TABLE 1
Through comparison, the magnesia carbon brick coated with the protective material for the ladle magnesia carbon brick prepared by the embodiment of the invention has the average thickness of the decarburized layer of about 1.8mm, which is far lower than that of the magnesia carbon brick not coated with the protective material, and the comparison shows that the protective material for the ladle magnesia carbon brick provided by the invention can effectively prevent carbon in the magnesia carbon brick from being oxidized in the ladle baking process, reduce the thickness of the decarburized layer and further prolong the service life of the magnesia carbon brick.
The applicant states that the present invention is illustrated by the above examples to show the detailed process equipment and process flow of the present invention, but the present invention is not limited to the above detailed process equipment and process flow, i.e. it does not mean that the present invention must rely on the above detailed process equipment and process flow to be implemented. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (7)
1. The protective material for the ladle magnesia carbon brick is characterized by comprising the following components in percentage by mass:
wherein, the content of kaolin with the particle size less than 2 μm accounts for 90-95%; the granularity of the titanium dioxide is 0.5-2 mu m; the particle size of the carbon black is less than or equal to 10 mu m.
2. The protective material for the ladle magnesia carbon brick as claimed in claim 1, which comprises the following components in percentage by mass:
3. the protective material for the ladle magnesia carbon brick as claimed in claim 1, which comprises the following components in percentage by mass:
4. the protective material for the ladle magnesia carbon brick as recited in claim 1, wherein the material is a solid-liquid mixed slurry of each raw material component and water.
5. The method for preparing the protective material for the ladle magnesia carbon brick as defined in any one of claims 1 to 4, wherein the method comprises the following steps: mixing the raw material components according to the formula ratio, adding the mixture into a stirrer, adding water into the stirrer according to the liquid-solid ratio of (3-5):1, and stirring at the speed of 200-.
6. The use of the protective material for ladle magnesia carbon bricks according to any of claims 1 to 4, characterised in that it is carried out by: and coating the protective material for the ladle magnesia carbon brick on the surface of the magnesia carbon brick, and forming a protective coating on the surface of the magnesia carbon brick after natural drying or baking.
7. The use according to claim 6, wherein the protective coating has a thickness of 0.5 to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537632.5A CN107311673B (en) | 2017-07-04 | 2017-07-04 | Protective material for ladle magnesia carbon brick and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537632.5A CN107311673B (en) | 2017-07-04 | 2017-07-04 | Protective material for ladle magnesia carbon brick and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107311673A CN107311673A (en) | 2017-11-03 |
| CN107311673B true CN107311673B (en) | 2020-05-29 |
Family
ID=60180556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537632.5A Active CN107311673B (en) | 2017-07-04 | 2017-07-04 | Protective material for ladle magnesia carbon brick and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107311673B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07187757A (en) * | 1993-12-27 | 1995-07-25 | Mitsubishi Materials Corp | Fired refractory bricks of magnesia-chromia excellent in slag erosion resistance |
| CN101007920A (en) * | 2007-01-22 | 2007-08-01 | 陈东阜 | Inorganic corrosion-proof fire-resistant abrasive-proof nano cementing agent |
| CN105152665A (en) * | 2015-09-29 | 2015-12-16 | 攀枝花钢城集团有限公司 | Steel ladle antioxidant and preparation and use method thereof |
| CN106380075A (en) * | 2016-08-26 | 2017-02-08 | 浙江长兴强立耐火材料有限公司 | Coating for steel ladle magnesia carbon brick and application method thereof |
-
2017
- 2017-07-04 CN CN201710537632.5A patent/CN107311673B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07187757A (en) * | 1993-12-27 | 1995-07-25 | Mitsubishi Materials Corp | Fired refractory bricks of magnesia-chromia excellent in slag erosion resistance |
| CN101007920A (en) * | 2007-01-22 | 2007-08-01 | 陈东阜 | Inorganic corrosion-proof fire-resistant abrasive-proof nano cementing agent |
| CN105152665A (en) * | 2015-09-29 | 2015-12-16 | 攀枝花钢城集团有限公司 | Steel ladle antioxidant and preparation and use method thereof |
| CN106380075A (en) * | 2016-08-26 | 2017-02-08 | 浙江长兴强立耐火材料有限公司 | Coating for steel ladle magnesia carbon brick and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107311673A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102730690B (en) | Al4SiC4 material synthetic method | |
| CN103467120B (en) | Non-phosphorus and low-carbon alumina-magnesia unburned brick for stainless steel ladle and manufacturing method of brick | |
| CN1012621B (en) | Antioxidation protective coating for carbon articles | |
| CN111875396B (en) | Preparation method of dry material for stainless steel smelting intermediate frequency furnace lining | |
| CN103755361A (en) | Aluminum-chromium-silicon fireproof material | |
| CN102838360A (en) | Composite fireproof material and preparation method thereof | |
| CN103787678A (en) | Preparation method of aluminum-magnesium carbon steel ladle refractory bricks | |
| CN106431436A (en) | Electric furnace cover castable taking aluminum-chromium slag as main material and preparation method thereof | |
| CN102838361A (en) | MgCa-SiC-C fireproof material and preparation method thereof | |
| CN105152660A (en) | Modified aluminum oxide-silicon carbide-carbon brick for torpedo ladle and preparation method therefor | |
| JPS6158433B2 (en) | ||
| CN110511000B (en) | Periclase-chromium corundum brick for upper groove of RH furnace and preparation method thereof | |
| CN113185306A (en) | Method for preparing high-resistance aluminum-chromium brick by doping zirconium boride | |
| CN112456986B (en) | Long-life ladle upper nozzle brick for calcium-treated steel and preparation method thereof | |
| CN107311673B (en) | Protective material for ladle magnesia carbon brick and preparation method and application thereof | |
| CN105777160A (en) | MgO-Cr7C3 brick for ladle slag line and production method of MgO-Cr7C3 brick | |
| EP1328490B1 (en) | Refractory article | |
| JP4328053B2 (en) | Magnesia-spinel brick | |
| JPH05105506A (en) | Slide valve plate brick | |
| KR20000041151A (en) | Magnesia-alumina-silicon carbonate-carbon type refractory and preparation thereof | |
| US8663379B2 (en) | Coating for machine parts used in the production of pig iron or steel | |
| CN105669220A (en) | Recycled alumina-chrome brick for Ausmelt furnace inner liner, and making method thereof | |
| JP6315037B2 (en) | Lined refractories for continuous casting tundish | |
| CN114873994B (en) | Composite antioxidation tundish dry material and preparation method thereof | |
| CN105481386A (en) | Antioxidative coating for carbon fireproof materials |
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 |