CN115893990B - Low-carbon magnesia carbon brick - Google Patents
Low-carbon magnesia carbon brick Download PDFInfo
- Publication number
- CN115893990B CN115893990B CN202211503195.2A CN202211503195A CN115893990B CN 115893990 B CN115893990 B CN 115893990B CN 202211503195 A CN202211503195 A CN 202211503195A CN 115893990 B CN115893990 B CN 115893990B
- Authority
- CN
- China
- Prior art keywords
- carbon
- parts
- magnesia
- powder
- 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.)
- Active
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a low-carbon magnesia carbon brick, and belongs to the technical field of refractory materials. The low-carbon magnesia carbon brick comprises the following mixture in parts by weight: 63-70 parts of fused magnesia particles, 23-30 parts of fused magnesia fine powder, 0-3 parts of crystalline flake graphite and ZrB 2 1-4 parts of C composite powder, 3 parts of metal aluminum powder and 4 parts of phenolic resin. The ZrB 2 the-C composite powder is composed of ZrC with particle size of 1 μm and B with particle size of 3 μm 4 C powder is prepared according to a mole ratio of 2:1 are uniformly mixed and then are subjected to heat preservation for 5 hours at 1600 ℃ under the protection of flowing argon, and are cooled to obtain the high-temperature-resistant alloy material. The low-carbon magnesia carbon brick prepared by the invention uses ZrB prepared by reaction 2 The C composite powder completely or partially replaces graphite, reduces the carbon content, effectively improves the normal-temperature strength and high-temperature oxidation resistance of the material, and has excellent thermal shock resistance.
Description
Technical Field
The invention belongs to the technical field of refractory materials, and in particular relates to a method for adding ZrB 2 -C composite powder low-carbon magnesium-carbon refractory brick with good oxidation resistance.
Background
The magnesia carbon refractory brick is often applied to the parts of a converter, an electric furnace, a ladle slag line and the like due to good slag erosion resistance and thermal shock resistance. The conventional magnesia carbon refractory brick has the following problems due to the high carbon content (12-20 wt%): (1) The higher thermal conductivity of carbon improves the thermal conductivity of the refractory bricks, and the thermal energy loss in the service process is easy to cause; (2) The carbon is easy to lead the refractory brick to form a loose and porous structure after being oxidized in a high-temperature environment, thereby reducing the slag resistance and mechanical property of the refractory brick and seriously affecting the service life of the refractory brick; (3) The high carbon content is easy to cause carburetion of molten steel to pollute the molten steel, and is unfavorable for smelting pure steel, ultra-low carbon steel and the like. Reducing the carbon content in refractory materials is a major trend in the current development of refractory materials. However, after the carbon content is reduced, the thermal shock resistance and slag erosion resistance of the magnesia carbon refractory bricks are significantly reduced because: (1) The heat conductivity of the refractory bricks is reduced while the carbon content is reduced, and the capability of the refractory materials for relieving thermal stress generated when the temperature suddenly changes, namely the thermal shock resistance is reduced; (2) After the carbon content is reduced, the wettability of the refractory brick with slag and molten steel is enhanced, and the slag erosion resistance of the refractory brick is reduced.
Improving or maintaining slag erosion resistance and thermal shock resistance of the magnesium-carbon refractory while reducing the carbon content is a hot spot and difficulty in research of the magnesium-carbon refractory. At present, researchers at home and abroad mainly develop researches on the low-carbon magnesia carbon refractory materials from three aspects of development of nano modified binders, optimization of matrixes and application of efficient antioxidants.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a method for adding ZrB 2 The low-carbon magnesia carbon brick of the composite powder is used for simultaneously improving the oxidation resistance and maintaining the thermal shock resistance of the magnesia carbon brick.
The invention is realized by the following technical scheme.
The invention provides a low-carbon magnesia carbon brick which comprises the following raw materials in parts by weight: 63-70 parts of fused magnesia particles, 23-30 parts of fused magnesia fine powder, 0-3 parts of crystalline flake graphite and ZrB 2 1-4 parts of C composite powder, 3 parts of metal aluminum powder and 4 parts of phenolic resin.
The ZrB 2 -C composite powder is prepared by the steps of:
(1) ZrC with a particle size of 1 μm and B with a particle size of 3 μm were mixed 4 C powder is prepared according to a mole ratio of 2:1, pouring the mixture into a ball mill tank after weighing the mixture in proportion, and adopting a wet ball milling method to mix the materials for 24 hours;
(2) drying the slurry by using a rotary evaporator, sieving the slurry by a 200-mesh sieve, and drying the slurry in a 90 ℃ oven for 24 hours;
(3) Placing the powder into a corundum crucible, placing the corundum crucible into a tube furnace, and preserving heat for 5h and cooling at 1600 ℃ under the protection of flowing argon to obtain ZrB 2 -C composite powder.
Further, the particle size range of the fused magnesia particles is 0-5mm, and the magnesia content is more than or equal to 97wt%.
Further, the grain size of the fused magnesia fine powder is 200 meshes, and the magnesia is more than or equal to 98 weight percent.
Further, the particle size of the crystalline flake graphite is 100 meshes.
Further, the particle size of the metal aluminum powder is 325 meshes.
The invention also provides a preparation method of the low-carbon magnesia carbon brick, which comprises the following steps:
(1) According to the raw material proportion, zrB 2 Premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder;
(2) Dry-mixing the fused magnesia granular aggregate in a mixer for 5-8min, adding 50% of the total phenolic resin, continuously mixing for 5min, pouring the pre-mixed fine powder obtained in the step (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer, and mixing for 8-10min;
(3) Filling the mixed pug into a plastic package bag for trapping materials for a period of time, then pressurizing and forming under 150MPa pressure, drying the prepared sample at 110 ℃ for 6 hours, solidifying the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample under the condition of embedding carbon, and cooling to obtain the low-carbon magnesia carbon brick.
Compared with the prior art, the invention has the following technical effects:
(1) The invention provides a low-carbon magnesia carbon brick, which provides an additive, namely ZrB 2 And the C composite powder is used for partially or completely replacing the crystalline flake graphite, so that the carbon content is reduced.
(2) ZrB in composite powder 2 The heat conductivity is higher, and the thermal shock resistance of the refractory material can be improved under the condition of reducing the carbon content. ZrB in composite powder 2 Has higher strength than graphite and can effectively improve the resistanceStrength of the fire material.
(3)ZrB 2 the-C composite powder is prepared from ZrC and B 4 C is synthesized by reaction and is not simply mixed mechanically, and one of the effects brought by the reaction is ZrB in the generated composite powder 2 Closely following C, zrB 2 C can be more effectively protected from oxidation. In addition, zrB 2 Oxidation to form B 2 O 3 The magnesium borate with low melting point can be generated by reaction with MgO, the liquid magnesium borate is filled in the air holes in the sample, the air holes are blocked to prevent air from further diffusing into the sample, and the antioxidation effect can be further achieved. The second effect is ZrB in the generated composite powder 2 And the particle size of C is very fine, which is helpful to improve the density of the refractory material, further improve the strength of the refractory material, and simultaneously improve the oxidation resistance of the material through the reduction of the porosity.
Detailed Description
In order to further understand the technical content of the present invention, the present invention will be described in detail with reference to the following examples, but the present invention is not limited to the following examples.
Example 1
The low-carbon magnesia carbon brick is prepared from the following components in parts by weight: 63 parts of fused magnesia particles (17 parts with the granularity of 0-1mm, 23 parts with the granularity of 1-3mm and 23 parts with the granularity of 3-5 mm), 30 parts of fused magnesia fine powder, 3 parts of crystalline flake graphite and ZrB 2 1 part of C composite powder, 3 parts of metal aluminum powder and 4 parts of added phenolic resin.
The preparation method of the low-carbon magnesia carbon brick comprises the following steps:
(1) Preparing raw materials according to a proportion, and preparing ZrB 2 -C, premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder.
(2) And (3) dry mixing the fused magnesia granular aggregate in a mixer for about 6min, adding 50% of the total phenolic resin, continuously mixing for about 5min, and pouring the pre-mixed fine powder of (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer for 8min.
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6 hours, curing the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample at 1400 ℃/3 hours under the carbon embedding condition to obtain the low-carbon magnesia carbon brick.
The magnesia carbon bricks obtained in this example have a porosity, a compressive strength at normal temperature, a retention of residual strength after one air cooling at 1100 ℃ and an oxidation index of 1400 ℃/3 hours of 10.63%,84.84MPa,82.61% and 62.33%, respectively.
Example 2
The low-carbon magnesia carbon brick is prepared from the following components in parts by weight: 65 parts of fused magnesia particles (17 parts of 0-1mm granularity, 24 parts of 1-3mm granularity and 24 parts of 3-5mm granularity), 28 parts of fused magnesia fine powder, 3 parts of crystalline flake graphite and ZrB 2 1 part of C composite powder, 3 parts of metal aluminum powder and 4 parts of added phenolic resin.
The preparation method of the low-carbon magnesia carbon brick comprises the following steps:
(1) Preparing raw materials according to a proportion, and preparing ZrB 2 -C, premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder.
(2) And (3) dry mixing the fused magnesia granular aggregate in a mixer for about 8min, adding 50% of the total phenolic resin, continuously mixing for about 5min, and pouring the pre-mixed fine powder of (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer for mixing for 10min.
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6 hours, curing the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample at 1400 ℃/3 hours under the carbon embedding condition to obtain the low-carbon magnesia carbon brick.
The magnesia carbon bricks obtained in this example have a porosity, a compressive strength at normal temperature, a retention rate of residual strength after one air cooling at 1100 ℃ and an oxidation index of 1400 ℃/3 hours of 10.54%,93.40MPa,86.25% and 45.99%, respectively.
Example 3
The low-carbon magnesia carbon brick is prepared from the following components in parts by weight: 68 parts of fused magnesia particles (wherein, 18 parts of 0-1mm granularity, 25 parts of 1-3mm granularity and 25 parts of 3-5mm granularity), 25 parts of fused magnesia fine powder, 1 part of crystalline flake graphite and ZrB 2 -C-compounding3 parts of powder, 3 parts of metal aluminum powder and 4 parts of additional phenolic resin.
The preparation method of the low-carbon magnesia carbon brick comprises the following steps:
(1) Preparing raw materials according to a proportion, and preparing ZrB 2 -C, premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder.
(2) And (3) dry mixing the fused magnesia granular aggregate in a mixer for about 5min, adding 50% of the total phenolic resin, continuously mixing for about 5min, and pouring the pre-mixed fine powder of (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer for mixing for 9min.
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6 hours, curing the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample at 1400 ℃/3 hours under the carbon embedding condition to obtain the low-carbon magnesia carbon brick.
The magnesia carbon bricks obtained in this example have a porosity, a compressive strength at normal temperature, a retention rate of residual strength after one air cooling at 1100 ℃ and an oxidation index of 1400 ℃/3 hours of 10.03%,92.27MPa,80.36% and 33.44%, respectively.
Example 4
The low-carbon magnesia carbon brick is prepared from the following components in parts by weight: 70 parts of fused magnesia particles (wherein 20 parts of 0-1mm granularity, 25 parts of 1-3mm granularity and 25 parts of 3-5mm granularity), 23 parts of fused magnesia fine powder and ZrB 2 4 parts of C composite powder, 3 parts of metal aluminum powder and 4 parts of additional phenolic resin.
The preparation method of the low-carbon magnesia carbon brick comprises the following steps:
(1) Preparing raw materials according to a proportion, and preparing ZrB 2 -C, premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder.
(2) And (3) dry mixing the fused magnesia granular aggregate in a mixer for about 5-8min, adding 50% of the total phenolic resin, continuously mixing for about 5min, and pouring the pre-mixed fine powder of (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer for mixing for 8-10min.
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6 hours, curing the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample at 1400 ℃/3 hours under the carbon embedding condition to obtain the low-carbon magnesia carbon brick.
The magnesia carbon bricks obtained in this example have a porosity, a compressive strength at normal temperature, a retention rate of residual strength after one air cooling at 1100 ℃ and an oxidation index of 1400 ℃/3 hours of 10.24%,90.36MPa,78.93% and 37.68%, respectively.
Comparative example 1
The low-carbon magnesia carbon brick is prepared from the following components in parts by weight: 68 parts of fused magnesia particles (wherein, the particle size of 0-1mm is 18 parts, the particle size of 1-3mm is 25 parts, the particle size of 3-5mm is 25 parts), 25 parts of fused magnesia fine powder, 4 parts of crystalline flake graphite, 3 parts of metal aluminum powder and 4 parts of added phenolic resin.
The preparation method of the low-carbon magnesia carbon brick comprises the following steps:
(1) Preparing raw materials according to a proportion, and premixing flake graphite, metal aluminum powder and magnesia fine powder.
(2) And (3) dry mixing the fused magnesia granular aggregate in a mixer for about 5-8min, adding 50% of the total phenolic resin, continuously mixing for about 5min, and pouring the pre-mixed fine powder of (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer for mixing for 8-10min.
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6 hours, curing the sample at 200 ℃ for 12 hours, and finally carrying out heat treatment on the sample at 1400 ℃/3 hours under the carbon embedding condition to obtain the low-carbon magnesia carbon brick.
The magnesia carbon bricks obtained in the comparative example have the apparent porosity, normal temperature compressive strength, residual strength retention after primary air cooling at 1100 ℃ and 1400 ℃/3h oxidation indexes of 11.01%,79.84MPa,84.82% and 79.01%, respectively.
As can be seen from comparing the various performance data of the low carbon magnesia carbon bricks prepared in example 1, example 2, example 3, example 4 and comparative example 1, the present invention adopts ZrB 2 Preparation of low-carbon magnesia carbon brick by replacing crystalline flake graphite with C, lower apparent porosity and normal temperatureThe compressive strength is higher, the oxidation resistance is better, and the residual strength after thermal shock is equivalent to that of comparative example 1.
The above-described embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above-described embodiments, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art, which fall within the scope and spirit of the principles of this disclosure.
Claims (6)
1. The low-carbon magnesia carbon brick is characterized by comprising the following raw materials in parts by weight:
63-70 parts of electric smelting magnesia particles
23-30 parts of electric smelting magnesia fine powder
0-3 parts of flake graphite
ZrB 2 1-4 parts of-C composite powder
3 parts of metal aluminum powder
4 parts of phenolic resin;
the ZrB 2 -C composite powder is prepared by the steps of:
(1) ZrC with particle size of 1 mu m and B with particle size of 3 mu m 4 C powder is prepared according to a mole ratio of 2:1, pouring the mixture into a ball mill tank after weighing the mixture in proportion, and adopting a wet ball milling mixing method for 24h;
(2) Drying the slurry by using a rotary evaporator, sieving the slurry by a 200-mesh sieve, and drying the slurry in a 90 ℃ oven for 24h;
placing the powder into a corundum crucible, placing the corundum crucible into a tube furnace, and preserving heat at 1600 ℃ under the protection of flowing argon for 5h cooling to obtain ZrB 2 -C composite powder.
2. The low carbon magnesia carbon brick of claim 1 wherein: the grain diameter range of the fused magnesia particles is 0-5mm, and the magnesia content is more than or equal to 97 percent wt percent.
3. The low carbon magnesia carbon brick of claim 1 wherein: the grain diameter of the fused magnesia fine powder is 200 meshes, and the magnesia content is more than or equal to 98 and wt percent.
4. The low carbon magnesia carbon brick of claim 1 wherein: the grain size of the crystalline flake graphite is 100 meshes.
5. The low carbon magnesia carbon brick of claim 1 wherein: the particle size of the metal aluminum powder is 325 meshes.
6. The method for preparing the low-carbon magnesia carbon brick according to claim 1, which is characterized by comprising the following steps:
(1) According to the raw material proportion, zrB 2 Premixing the composite powder, the crystalline flake graphite, the metal aluminum powder and the magnesia fine powder;
(2) Dry-mixing the fused magnesia granular aggregate in a mixer for 5-8min, adding 50% of the total phenolic resin, continuously mixing for 5min, pouring the pre-mixed fine powder obtained in the step (1), the rest 50% of phenolic resin and 4% of alcohol into the mixer, and mixing for 8-10min;
(3) Filling the mixed pug into a plastic package bag for trapping for a period of time, then pressurizing and molding under 150MPa, drying the prepared sample at 110 ℃ for 6h, solidifying the sample at 200 ℃ for 12h, finally carrying out heat treatment on the sample under the condition of embedding carbon, and cooling to obtain the low-carbon magnesia carbon brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211503195.2A CN115893990B (en) | 2022-11-28 | 2022-11-28 | Low-carbon magnesia carbon brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211503195.2A CN115893990B (en) | 2022-11-28 | 2022-11-28 | Low-carbon magnesia carbon brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115893990A CN115893990A (en) | 2023-04-04 |
| CN115893990B true CN115893990B (en) | 2023-09-08 |
Family
ID=86482153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211503195.2A Active CN115893990B (en) | 2022-11-28 | 2022-11-28 | Low-carbon magnesia carbon brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115893990B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116410008B (en) * | 2023-04-24 | 2024-05-28 | 鞍山市和丰耐火材料有限公司 | Long-service-life low-carbon magnesia carbon brick and preparation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05170559A (en) * | 1991-12-24 | 1993-07-09 | Kurosaki Refract Co Ltd | Zrb2-c based filler for tap hole of blast furnace |
| JP2006026728A (en) * | 2004-07-22 | 2006-02-02 | Jfe Refractories Corp | Sliding nozzle plate and its producing method |
| CN1844053A (en) * | 2006-04-27 | 2006-10-11 | 鞍山科技大学 | Magnesia brick containing antioxidant C-TiN composite powder and method for preparing the same |
| CN101244940A (en) * | 2008-03-20 | 2008-08-20 | 郑州大学 | Metallic composite low carbon magnesium carbon brick for ladle slag wire and manufacture method thereof |
| CN102167592A (en) * | 2011-01-25 | 2011-08-31 | 中国人民解放军国防科学技术大学 | Preparation method of ZrB2-ZrC-based ultrahigh-temperature-resistant ceramic |
| CN102503497A (en) * | 2011-11-17 | 2012-06-20 | 江苏苏嘉集团新材料有限公司 | Environment-friendly low-carbon magnesium carbon brick |
| CN102584277A (en) * | 2012-01-12 | 2012-07-18 | 武汉科技大学 | Low-carbon magnesia carbon bricks and preparation method thereof |
| CN102633504A (en) * | 2012-04-26 | 2012-08-15 | 天津大学 | Zirconium diboride/silicon carbide composite material and method for preparing same by means of arc melting in-suit reaction |
| CN103449463A (en) * | 2013-09-12 | 2013-12-18 | 武汉科技大学 | Zirconium boride-silicon carbide composite powder and preparation method thereof |
| CN104174837A (en) * | 2013-05-27 | 2014-12-03 | 泰州市旺鑫耐火材料有限公司 | Silicon-free carbon-free submerged nozzle for steel continuous casting |
| CN105622121A (en) * | 2016-01-15 | 2016-06-01 | 浙江自立高温科技有限公司 | Low carbon magnesia-alumina-carbon brick combining ceramics at high temperature and preparation method thereof |
| CN110143807A (en) * | 2019-05-28 | 2019-08-20 | 海城利尔麦格西塔材料有限公司 | A kind of ladle slag line metallic composite low carbon magnesium carbon brick and preparation method thereof |
| CN113248269A (en) * | 2021-05-17 | 2021-08-13 | 江苏苏嘉集团新材料有限公司 | Magnesia carbon brick added with composite binder and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070270302A1 (en) * | 2006-05-22 | 2007-11-22 | Zhang Shi C | Pressurelessly sintered zirconium diboride/silicon carbide composite bodies and a method for producing the same |
-
2022
- 2022-11-28 CN CN202211503195.2A patent/CN115893990B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05170559A (en) * | 1991-12-24 | 1993-07-09 | Kurosaki Refract Co Ltd | Zrb2-c based filler for tap hole of blast furnace |
| JP2006026728A (en) * | 2004-07-22 | 2006-02-02 | Jfe Refractories Corp | Sliding nozzle plate and its producing method |
| CN1844053A (en) * | 2006-04-27 | 2006-10-11 | 鞍山科技大学 | Magnesia brick containing antioxidant C-TiN composite powder and method for preparing the same |
| CN101244940A (en) * | 2008-03-20 | 2008-08-20 | 郑州大学 | Metallic composite low carbon magnesium carbon brick for ladle slag wire and manufacture method thereof |
| CN102167592A (en) * | 2011-01-25 | 2011-08-31 | 中国人民解放军国防科学技术大学 | Preparation method of ZrB2-ZrC-based ultrahigh-temperature-resistant ceramic |
| CN102503497A (en) * | 2011-11-17 | 2012-06-20 | 江苏苏嘉集团新材料有限公司 | Environment-friendly low-carbon magnesium carbon brick |
| CN102584277A (en) * | 2012-01-12 | 2012-07-18 | 武汉科技大学 | Low-carbon magnesia carbon bricks and preparation method thereof |
| CN102633504A (en) * | 2012-04-26 | 2012-08-15 | 天津大学 | Zirconium diboride/silicon carbide composite material and method for preparing same by means of arc melting in-suit reaction |
| CN104174837A (en) * | 2013-05-27 | 2014-12-03 | 泰州市旺鑫耐火材料有限公司 | Silicon-free carbon-free submerged nozzle for steel continuous casting |
| CN103449463A (en) * | 2013-09-12 | 2013-12-18 | 武汉科技大学 | Zirconium boride-silicon carbide composite powder and preparation method thereof |
| CN105622121A (en) * | 2016-01-15 | 2016-06-01 | 浙江自立高温科技有限公司 | Low carbon magnesia-alumina-carbon brick combining ceramics at high temperature and preparation method thereof |
| CN110143807A (en) * | 2019-05-28 | 2019-08-20 | 海城利尔麦格西塔材料有限公司 | A kind of ladle slag line metallic composite low carbon magnesium carbon brick and preparation method thereof |
| CN113248269A (en) * | 2021-05-17 | 2021-08-13 | 江苏苏嘉集团新材料有限公司 | Magnesia carbon brick added with composite binder and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Densification behavior and mechanical properties of spark plasma reaction sintered ZrB2-ZrC-B4C ceramics from B4C-Zr system;Chen H et al.;Ceramics International;第45卷(第9期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115893990A (en) | 2023-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106699206B (en) | Large and medium-sized blast furnace anhydrous stemming and preparation method thereof | |
| CN103011862B (en) | Environment-friendly carbon-free tundish dry material | |
| CN113072364A (en) | Lightweight refractory castable for blast furnace swinging chute and preparation method thereof | |
| CN115893990B (en) | Low-carbon magnesia carbon brick | |
| CN108530090B (en) | Light tundish working lining and preparation method thereof | |
| CN108178641A (en) | A kind of tundish dry material and preparation method thereof | |
| CN115321956B (en) | High-temperature liquid phase toughened magnesia carbon brick and preparation method thereof | |
| CN107032805A (en) | A kind of ladle Ultra-low carbon Periclase spinel carbon brick and preparation method | |
| CN111807819A (en) | High-strength high-erosion low-carbon magnesia carbon brick for smelting stainless steel and preparation method thereof | |
| CN115141008B (en) | Long-service-life swing groove castable and preparation method thereof | |
| CN105198457A (en) | Converter slag-stopping inner nozzle brick and preparation method thereof | |
| CN115321957B (en) | Tundish lining material for smelting quality steel and preparation method | |
| CN112479684A (en) | Magnesium carbon brick for hot spot area of furnace wall of electric arc furnace | |
| CN110723963A (en) | Blast furnace tapping channel castable containing nano alumina and preparation method thereof | |
| CN114057472A (en) | Low-carbon magnesium spinel sliding brick and preparation method thereof | |
| CN108723302B (en) | Heating and heat-insulating riser for nodular cast iron and preparation method thereof | |
| CN103396135B (en) | A kind of mould material for noting recrement basin grid wall and preparation method thereof and using method | |
| CN104016691B (en) | A kind of magnesia-spinel brick for RH vacuum refining furnace and preparation method thereof | |
| CN103058694A (en) | High-purity corundum-spinel composite material and preparation method thereof | |
| CN112441840A (en) | Converter repairing material prepared by utilizing recycled magnesia-hercynite bricks | |
| CN113321517A (en) | Environment-friendly low-carbon magnesia carbon brick and preparation method thereof | |
| CN113321491B (en) | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof | |
| CN113831088B (en) | Phase-change large-volume concrete and preparation method thereof | |
| CN114874003A (en) | Low-heat-conduction steel ladle permanent layer castable containing calcium hexaluminate | |
| CN114736007A (en) | Low-heat-conductivity high-performance aluminum-magnesia-carbon molten pool brick 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |