CN110550922A - Green low-creep MgO-C brick and preparation method thereof - Google Patents
Green low-creep MgO-C brick and preparation method thereof Download PDFInfo
- Publication number
- CN110550922A CN110550922A CN201910897752.5A CN201910897752A CN110550922A CN 110550922 A CN110550922 A CN 110550922A CN 201910897752 A CN201910897752 A CN 201910897752A CN 110550922 A CN110550922 A CN 110550922A
- Authority
- CN
- China
- Prior art keywords
- mgo
- fine powder
- creep
- brick
- green low
- 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.)
- Withdrawn
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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/105—Magnesium oxide or magnesium carbonate cements
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
- C04B2111/763—High temperatures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to a green low-creep MgO-C brick and a preparation method thereof. The technical scheme is as follows: mixing the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine according to the mass ratio of 100 to (2-4) to (4-6) in a vertical heating stirrer at 130-135 ℃ to prepare mixed fine powder; mixing fused magnesia particles, the mixed fine powder, the crystalline flake graphite and the boric anhydride according to the mass ratio of 100 to (40-45) to (3-6) to (2-3) in a vertical heating mixer at 140-150 ℃ to prepare a premix; adding glycerol accounting for 4-5 wt% of the premix and liquid paraffin accounting for 2-3 wt% of the premix into the premix, and mixing the mixture in a vertical heating stirrer at 160-165 ℃ to prepare a mixture; and (3) mechanically pressing and forming the mixture under the condition of 55-65 MPa, and performing heat treatment at 220-250 ℃ for 60-90 minutes to obtain the green low-creep MgO-C brick. The invention has simple process and is environment-friendly; the prepared product has good environmental protection effect, low high-temperature creep, strong hydration resistance and strong slag corrosion resistance.
Description
Technical Field
The invention belongs to the technical field of MgO-C bricks. In particular to a green low-creep MgO-C brick and a preparation method thereof.
Background
The MgO-C brick is a non-carbon-burning composite refractory material which is prepared by taking MgO with high melting point and carbon materials as raw materials, adding non-oxide additives and combining carbon binders, and can be widely applied to the parts such as the linings of converters and electric furnaces, ladle slag lines and the like.
With the development and continuous development of MgO-C bricks, the high-temperature service performance of the MgO-C bricks is more and more concerned, and the requirements on functionalization, long service life and the like are higher and higher:
(1) At present, the content of C in the MgO-C bricks is about 10-20%, but C in the MgO-C bricks is corroded by molten steel in the service process to cause molten steel carburization (Junberg bolt, et al. 'the current research and development of low-carbon magnesia carbon bricks', Wuhan university of science and technology, 2008, 31 (3): pp 233-237). Based on the above, researchers have developed low-carbon MgO-C bricks (with a C content of about 4-6%), but the reduction of the C content inevitably weakens the high-temperature creep and melt erosion resistance of the MgO-C bricks. The existing technical means mainly improves the dispersibility of the carbon source by introducing or in-situ forming the nano carbon source (such as the carbon nano tube), further slows down the weakening of the high-temperature performance of the MgO-C brick, but has complex process and obviously improves the preparation cost.
(2) the prior art shows that main raw materials (magnesia and carbon materials) used for preparing the MgO-C brick have no obvious negative influence on the environment, but the used bonding agent (mainly phenolic resin, high-temperature asphalt, tar and the like) is not only related to the bonding performance of the MgO-C brick, but also has obvious influence on the environment. On one hand, the binder has large pollution in the using process and is easy to cause secondary pollution, and on the other hand, toxic or irritant gas is released in the heat treatment and high-temperature service processes, so that the working environment of construction and masonry is influenced (Rong. "non-aqueous special binder for magnesia carbon brick construction"; refractory and lime 2015, 40 (2): pp 58).
(3) Magnesia, a main raw material in the MgO-C brick, belongs to an alkaline refractory oxide raw material and is easy to generate hydration reaction with moisture in the air. At present, the main technical means for improving the hydration resistance of the MgO-C brick is to isolate the outside air by coating the bonding agent, but the bonding agent (such as resin) still contains a small amount of moisture, which inevitably causes the hydration of the MgO-C brick.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a green low-creep MgO-C brick with simple process and environmental protection; the green low-creep MgO-C brick prepared by the method has the advantages of good environmental protection effect, low high-temperature creep, strong hydration resistance and strong slag corrosion resistance.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following specific steps:
Firstly, adding the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (2-4) to (4-6), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder.
And secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (40-45) to (3-6) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare the premix.
And thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes in a vertical heating stirrer at 160-165 ℃ to prepare a mixture.
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 55-65 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
The MgO content of the fused magnesia fine powder is more than or equal to 98 wt%, n (CaO)/n (SiO 2) is larger than 2, the true density of the fused magnesia fine powder is 3.53-3.54 g/cm 3, and the particle size of the fused magnesia fine powder is 40-60 mu m.
The content of TiB 2 in the titanium diboride fine powder is more than or equal to 98 wt%, and the granularity of the titanium diboride fine powder is 70-80 mu m.
The triethanolamine is chemically pure.
The boric anhydride is chemically pure.
The glycerol is chemically pure.
The liquid paraffin is chemically pure.
The content of MgO of the fused magnesia particles is more than or equal to 98 wt%, n (CaO)/n (SiO 2) is larger than 2, the volume density of the fused magnesia particles is 3.50-3.52 g/cm 3, and the particle size of the fused magnesia particles is 0.1-5 mm.
The C content of the flake graphite is more than or equal to 98 wt%; the particle size of the flake graphite is less than or equal to 70 mu m.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects:
1. According to the invention, triethanolamine, glycerol and the like are used as binding agents, and the combination of the components of the MgO-C brick is promoted by utilizing the mutual solubility and the complexing effect of the triethanolamine, so that no toxic or pungent smell is generated in the preparation process, the preparation method is green and pollution-free, and the environmental protection effect of the green low-creep MgO-C brick is obviously improved.
2. According to the invention, the raw materials and the binding agent and other components are mixed in a thermal state, so that the dispersibility of the binding agent is improved, the binding agent does not contain free moisture, the accumulation form of the solid raw material components is improved, the uniform coating is realized, the hydration of the raw material components such as fused magnesia and the like is avoided, and the hydration resistance of the green low-creep MgO-C brick is improved.
3. The invention utilizes the introduction of titanium diboride and the high-temperature stability thereof to improve the strength of the MgO-C brick, and realizes reverse protection by preferential oxidation of C, thereby slowing down the oxidation process of the titanium diboride; the oxidation-solid solution characteristic of the titanium diboride under the high-temperature service condition is combined, the bonding strength of the MgO-C brick matrix material is enhanced, and the high-temperature creep and slag corrosion resistance of the green low-creep MgO-C brick are further improved.
the green low-creep MgO-C brick prepared by the invention is detected as follows: the high-temperature creep rate (1200 ℃) is 0.22 to 0.31 percent; the hydration percentage is 0.88 to 1.04 percent; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 2.7-4.8%. The green low-creep MgO-C brick prepared by the invention is suitable for the furnace lining and slag line parts of a VOD or AOD refining furnace.
Therefore, the invention has the characteristics of simple process and environmental friendliness; the prepared green low-creep MgO-C brick has the advantages of good environmental protection effect, low high-temperature creep, strong hydration resistance and strong slag corrosion resistance.
Detailed Description
The invention is further described with reference to specific embodiments, without limiting its scope.
In order to avoid repetition, the materials related to this specific embodiment are described in a unified manner, which is not described in the embodiments again:
the MgO content of the fused magnesia fine powder is more than or equal to 98 wt%, n (CaO)/n (SiO 2) is larger than 2, the true density of the fused magnesia fine powder is 3.53-3.54 g/cm 3, and the particle size of the fused magnesia fine powder is 40-60 mu m.
The content of TiB 2 in the titanium diboride fine powder is more than or equal to 98 wt%, and the granularity of the titanium diboride fine powder is 70-80 mu m.
The triethanolamine is chemically pure.
The boric anhydride is chemically pure.
The glycerol is chemically pure.
the liquid paraffin is chemically pure.
the content of MgO of the fused magnesia particles is more than or equal to 98 wt%, n (CaO)/n (SiO 2) is larger than 2, the volume density of the fused magnesia particles is 3.50-3.52 g/cm 3, and the particle size of the fused magnesia particles is 0.1-5 mm.
The C content of the flake graphite is more than or equal to 98 wt%; the particle size of the flake graphite is less than or equal to 70 mu m.
Example 1
A green low-creep MgO-C brick and a preparation method thereof. The preparation method in this example is:
Firstly, adding the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (2-3) to (4-5), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder.
And secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (40-42) to (3-5) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare the premix.
And thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes in a vertical heating stirrer at 160-165 ℃ to prepare a mixture.
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 55-60 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
The green low-creep MgO-C brick prepared by the embodiment is detected as follows: the high-temperature creep rate (1200 ℃) is 0.24-0.25 percent; the hydration percentage is 0.92-0.95%; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 4.4-4.8%.
The green low-creep MgO-C brick prepared by the embodiment is suitable for the furnace lining and slag line part of a VOD or AOD refining furnace.
example 2
A green low-creep MgO-C brick and a preparation method thereof. The preparation method in this example is:
Firstly, adding the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (2-3) to (5-6), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder.
And secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (41-43) to (3-5) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare the premix.
And thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes in a vertical heating stirrer at 160-165 ℃ to prepare a mixture.
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 55-60 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
the green low-creep MgO-C brick prepared by the embodiment is detected as follows: the high-temperature creep rate (1200 ℃) is 0.27 to 0.30 percent; the hydration percentage is 0.88 to 0.93 percent; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 3.4-4.0%.
The green low-creep MgO-C brick prepared by the embodiment is suitable for the furnace lining and slag line part of a VOD or AOD refining furnace.
Example 3
A green low-creep MgO-C brick and a preparation method thereof. The preparation method in this example is:
Firstly, adding the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (3-4) to (4-5), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder.
And secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (42-44) to (4-6) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare the premix.
And thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes in a vertical heating stirrer at 160-165 ℃ to prepare a mixture.
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 60-65 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
The green low-creep MgO-C brick prepared by the embodiment is detected as follows: the high-temperature creep rate (1200 ℃) is 0.29 to 0.31 percent; the hydration percentage is 0.96-1.04%; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 2.7-3.7%.
The green low-creep MgO-C brick prepared by the embodiment is suitable for the furnace lining and slag line part of a VOD or AOD refining furnace.
Example 4
A green low-creep MgO-C brick and a preparation method thereof. The preparation method in this example is:
Firstly, adding the fused magnesite fine powder, the titanium diboride fine powder and the triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (3-4) to (5-6), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder.
And secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (43-45) to (4-6) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare the premix.
and thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes in a vertical heating stirrer at 160-165 ℃ to prepare a mixture.
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 60-65 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
The green low-creep MgO-C brick prepared by the embodiment is detected as follows: the high-temperature creep rate (1200 ℃) is 0.22-0.28 percent; the hydration percentage is 0.94-0.98%; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 3.8-4.5%.
The green low-creep MgO-C brick prepared by the embodiment is suitable for the furnace lining and slag line part of a VOD or AOD refining furnace.
Compared with the prior art, the specific implementation mode has the following positive effects:
1. According to the specific embodiment, triethanolamine, glycerol and the like are used as binding agents, the combination of the components of the MgO-C brick is promoted by utilizing the mutual solubility and the complexing effect of the triethanolamine, no toxic or pungent smell is generated in the preparation process, the MgO-C brick is green and pollution-free, and the environmental protection effect of the green low-creep MgO-C brick is obviously improved.
2. the hot-state mixing of the raw materials, the binding agent and other components improves the dispersibility of the binding agent, the binding agent does not contain free moisture in the embodiment, the accumulation form of solid raw material components is improved, the uniform coating is realized, the hydration of the raw material components such as fused magnesia and the like is avoided, and the hydration resistance of the green low-creep MgO-C brick is improved.
3. The specific embodiment utilizes the introduction of titanium diboride and the high-temperature stability thereof to improve the strength of the MgO-C brick, and realizes reverse protection by preferential oxidation of C, thereby slowing down the oxidation process of the titanium diboride; the oxidation-solid solution characteristic of the titanium diboride under the high-temperature service condition is combined, the bonding strength of the MgO-C brick matrix material is enhanced, and the high-temperature creep and slag corrosion resistance of the green low-creep MgO-C brick are further improved.
The green low-creep MgO-C brick prepared by the specific embodiment is detected as follows: the high-temperature creep rate (1200 ℃) is 0.22 to 0.31 percent; the hydration percentage is 0.88 to 1.04 percent; the corrosion index of the 1500 ℃ static crucible method slag resistance experiment is 2.7-4.8%. The green low-creep MgO-C brick prepared by the specific embodiment is suitable for the furnace lining and slag line part of a VOD or AOD refining furnace.
therefore, the specific implementation mode has the characteristics of simple process and environmental friendliness; the prepared green low-creep MgO-C brick has the advantages of good environmental protection effect, low high-temperature creep, strong hydration resistance and strong slag corrosion resistance.
Claims (10)
1. A preparation method of a green low-creep MgO-C brick is characterized by comprising the following specific steps:
Firstly, adding fused magnesite fine powder, titanium diboride fine powder and triethanolamine into a vertical heating stirrer according to the mass ratio of the fused magnesite fine powder to the titanium diboride fine powder to the triethanolamine of 100 to (2-4) to (4-6), and uniformly mixing at the temperature of 130-135 ℃ to prepare mixed fine powder;
Secondly, adding the fused magnesia particles, the mixed fine powder, the flake graphite and the boric anhydride into a vertical heating stirrer according to the mass ratio of the fused magnesia particles to the mixed fine powder to the flake graphite to the boric anhydride of 100 to (40-45) to (3-6) to (2-3), and mixing for 6-8 minutes at the temperature of 140-150 ℃ to prepare a premix;
Thirdly, sequentially adding 4-5 wt% of glycerol and 2-3 wt% of liquid paraffin into the premix, and mixing for 5-8 minutes at 160-165 ℃ in a vertical heating stirrer to prepare a mixture;
And fourthly, adding the mixture into a mold, performing mechanical compression molding under the condition of 55-65 MPa, then placing the mixture into a muffle furnace, and performing heat treatment for 60-90 minutes at the temperature of 220-250 ℃ to obtain the green low-creep MgO-C brick.
2. the preparation method of the green low-creep MgO-C brick according to claim 1, wherein the MgO content of the fused magnesia fine powder is more than or equal to 98 wt%, n (CaO)/n (SiO 2) > Tg 2, the true density of the fused magnesia fine powder is 3.53-3.54 g/cm 3, and the particle size of the fused magnesia fine powder is 40-60 μm.
3. the method for preparing the green low-creep MgO-C brick according to claim 1, wherein the TiB 2 content of the titanium diboride fine powder is more than or equal to 98 wt%, and the granularity of the titanium diboride fine powder is 70-80 μm.
4. The method of making green low creep MgO-C bricks according to claim 1, wherein the triethanolamine is chemically pure.
5. The method of claim 1, wherein the boron anhydride is chemically pure.
6. The method of making green low creep MgO-C bricks according to claim 1, characterized in that the glycerol is chemically pure.
7. The method of claim 1, wherein the liquid paraffin is chemically pure.
8. The method for preparing the green low-creep MgO-C brick according to claim 1, wherein the content of MgO in the fused magnesia particles is greater than or equal to 98 wt%, n (CaO)/n (SiO 2) > Tg 2, the bulk density of the fused magnesia particles is 3.50-3.52 g/cm 3, and the particle size of the fused magnesia particles is 0.1-5 mm.
9. The method for preparing green low-creep MgO-C brick according to claim 1, wherein the C content of the crystalline flake graphite is more than or equal to 98 wt%; the particle size of the flake graphite is less than or equal to 70 mu m.
10. A green low creep MgO-C brick, characterized in that the green low creep MgO-C brick is the green low creep MgO-C brick prepared by the method for preparing the green low creep MgO-C brick according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897752.5A CN110550922A (en) | 2019-09-23 | 2019-09-23 | Green low-creep MgO-C brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897752.5A CN110550922A (en) | 2019-09-23 | 2019-09-23 | Green low-creep MgO-C brick and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110550922A true CN110550922A (en) | 2019-12-10 |
Family
ID=68741149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910897752.5A Withdrawn CN110550922A (en) | 2019-09-23 | 2019-09-23 | Green low-creep MgO-C brick and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110550922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816726A (en) * | 2021-09-03 | 2021-12-21 | 山东柯信新材料有限公司 | Novel steel tapping hole and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653471A (en) * | 2011-03-01 | 2012-09-05 | 辽宁科技大学 | Method for producing magnesium carbon brick by using boron magnesium ore as additive |
| CN102765953A (en) * | 2012-08-07 | 2012-11-07 | 营口鲅鱼圈耐火材料有限公司 | Magnesia carbon brick containing composite antioxidant and preparation thereof |
| CN107793161A (en) * | 2017-11-16 | 2018-03-13 | 盐城天顺机械科技有限公司 | A kind of magnesia carbon brick refractory material and preparation method thereof |
-
2019
- 2019-09-23 CN CN201910897752.5A patent/CN110550922A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653471A (en) * | 2011-03-01 | 2012-09-05 | 辽宁科技大学 | Method for producing magnesium carbon brick by using boron magnesium ore as additive |
| CN102765953A (en) * | 2012-08-07 | 2012-11-07 | 营口鲅鱼圈耐火材料有限公司 | Magnesia carbon brick containing composite antioxidant and preparation thereof |
| CN107793161A (en) * | 2017-11-16 | 2018-03-13 | 盐城天顺机械科技有限公司 | A kind of magnesia carbon brick refractory material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴其胜主编: "《材料物理性能 (第二版)》", 31 December 2018, 华东理工大学出版社 * |
| 唐海等: "《添加TiB2对铝镁质浇注料性能的影响》", 《陶瓷学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816726A (en) * | 2021-09-03 | 2021-12-21 | 山东柯信新材料有限公司 | Novel steel tapping hole and preparation method |
| CN113816726B (en) * | 2021-09-03 | 2023-01-10 | 山东柯信新材料有限公司 | Steel tapping hole and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107892575B (en) | Silicon carbide-calcium hexaluminate composite refractory material | |
| CN101220195B (en) | Phenolic resin containing nano-carbon powder, nano-carbon modified low carbon magnesium carbon brick and production method thereof | |
| CN107879753A (en) | A kind of carborundum magnesia-aluminum spinel composite fire-resistant material | |
| CN101851106B (en) | Antioxidation aluminium unburned carbon brick and preparation method thereof | |
| CN101857446A (en) | Refractory castable for desulfurization stirrer | |
| CN102531653A (en) | Hot-state repair material made from waste magnesia-carbon brick and used for converter and preparation method thereof | |
| CN107032805A (en) | A kind of ladle Ultra-low carbon Periclase spinel carbon brick and preparation method | |
| CN101555150B (en) | Low-carbon magnesia carbon brick containing nanometer zinc oxide | |
| CN101935229A (en) | Microporous high chrome brick and preparation method thereof | |
| CN108610071B (en) | A kind of self-bonding Tercod and its liquid-phase sintering preparation method | |
| CN101182220B (en) | Smelting-furnace bottom tamping material and manufacturing method | |
| CN106045529A (en) | Iron runner castable containing 80% of waste refractories or above | |
| CN112341163A (en) | Addition of C @ Cr3C2Low-carbon magnesia-carbon refractory material of composite powder and preparation method thereof | |
| CN115141008A (en) | Long-life swinging channel castable and preparation method thereof | |
| CN105777160B (en) | A kind of ladle slag line MgO-Cr7C3Brick and preparation method thereof | |
| CN110550922A (en) | Green low-creep MgO-C brick and preparation method thereof | |
| CN102584281A (en) | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof | |
| CN110590337A (en) | Environment-friendly antioxidant unburned MgO-C brick and preparation method thereof | |
| CN112759369A (en) | Magnesia-carbon brick with high thermal shock stability | |
| CN110255970A (en) | A kind of sintering free low carbon magnesia carbon brick and preparation method thereof | |
| CN106866126A (en) | A kind of corundum spinelle refractory brick and preparation method thereof | |
| CN115196946B (en) | Magnesium-calcium brick for AOD furnace and preparation method thereof | |
| CN101423407B (en) | Al4SiC4-Al2OC composite refractory materials and preparation method thereof | |
| CN102424586A (en) | Preparation method of SiC fireproof raw material powder | |
| CN116573922A (en) | Carbon nanofiber reinforced low-carbon magnesium-carbon refractory material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191210 |
|
| WW01 | Invention patent application withdrawn after publication |