CN104446564B - A kind of preparation method of the zircon corundum brick containing chromium oxide - Google Patents
A kind of preparation method of the zircon corundum brick containing chromium oxide Download PDFInfo
- Publication number
- CN104446564B CN104446564B CN201410765619.1A CN201410765619A CN104446564B CN 104446564 B CN104446564 B CN 104446564B CN 201410765619 A CN201410765619 A CN 201410765619A CN 104446564 B CN104446564 B CN 104446564B
- Authority
- CN
- China
- Prior art keywords
- chromium oxide
- powder
- granularity
- fine powder
- preparation
- 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 belongs to technical field of refractory materials, be specifically related to the preparation method of a kind of zircon corundum brick containing chromium oxide.With casting zirconia corundum granule and chrome oxide particle as aggregate, add chromium oxide fine powder, chromium oxide powder, α Al2O3Powder and white fused alumina fine powder make substrate, add bonding agent, through material mixing, molding with dried, are positioned in nitrogen kiln, by adjusting the partial pressure of oxygen of firing atmosphere, prepare through easy fired.The brick of the present invention, for the little furnace sidewall of horseshoe flame furnace, crown of burner, port ramp, the position such as flue of regenerator body of wall and alkali-free glass fibre tank furnace, has that thermal shock resistance is excellent and the excellent feature of slag-resistant aggressivity, has higher commercial Application promotional value.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to the preparation method of a kind of zircon corundum brick containing chromium oxide.
Background technology
Fused cast zirconia-alumina brick is used for the positions such as the flue of the little furnace sidewall of horseshoe flame furnace, crown of burner, port ramp, regenerator body of wall and alkali-free glass fibre tank furnace.Above-mentioned position in use exists alternately changes fire, it is desirable to brick has good thermal shock resistance, it is possible to sustain the impact of moment a large amount of high speed cold air；It is simultaneously subjected to alkali steam, SO2Corrode with sodium borate etc..
Fused cast zirconia-alumina brick is first by industrial alumina powder, zircon sand, the raw material mix homogeneously such as desilicated zirconia and a small amount of soda, in putting into electric arc furnace, fully fusing is uniform, it is poured in ready model, in foundry goods embedment insulation material, or inserts in the annealing kiln of outside heat supply, eliminate its internal stress, make brick without internal fissure, then carry out cutting or grinding, it is thus achieved that finished product.This brick structure is fine and close, apparent porosity as little as 2%, thus thermal shock resistance is poor, it is impossible to bear the thermal shock during port alternately changes fire；Brick alkali resistant or sodium borate steam performance are poor, the position weak effect such as port being used in horseshoe flame furnace, there is short defect in service life.
Summary of the invention
The purpose of the present invention is to propose to the preparation method of a kind of zircon corundum brick containing chromium oxide, utilize α-Al2O3Powder and chromium oxide powder realize easy fired under the partial pressure of oxygen of suitable firing atmosphere, it is to avoid the defect of glass exudation in casting zirconia corundum granule when high temperature burns till.It is high that zircon corundum brick containing chromium oxide prepared by this preparation method has apparent porosity, and thermal shock resistance is excellent, the feature that erosion-resisting characteristics is strong, it is possible to effectively extends the service life of brick.
To achieve these goals, the technical solution used in the present invention is as follows:
The preparation method of a kind of zircon corundum brick containing chromium oxide, the raw material components of the zircon corundum brick containing chromium oxide and percentage by weight be: granularity is the casting zirconia corundum granule 35～70% of 0.1～4 mm；Granularity is the chrome oxide particle 0～35% of 0.1～2 mm；The white fused alumina fine powder 0～20% of granularity ＜ 0.088 mm；α-the Al of granularity ＜ 0.044 mm2O3Powder 2～15%；Granularity is the chromium oxide fine powder 3～30% of 0.044～0.088 mm；The chromium oxide powder 1～15% of granularity ＜ 0.044 mm；Wherein casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, more than 0.1 mm sieving and grading after, account for 5～20%, 10～30%, 0～30%, 0～25% of a kind of zircon corundum brick raw material gross weight containing chromium oxide respectively；Chrome oxide particle by less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, more than 0.1 mm sieving and grading after, account for the 0～20% and 0～20% of a kind of zircon corundum brick raw material gross weight containing chromium oxide respectively；Bonding agent is the 1～6% of above-mentioned raw materials gross weight；By chromium oxide fine powder, chromium oxide powder, α-Al2O3Powder and white fused alumina fine powder are placed in mixing equipment and mix, the mixed powder being uniformly mixed；After casting zirconia corundum granule and chrome oxide particle are stirred moistening with bonding agent, add mixed powder mix homogeneously；Employing machine pressure mode prepares the base substrate of various required size, is dried 24～36 hours through 100～110 DEG C；Dried base substrate is placed in nitrogen kiln, makes the partial pressure of oxygen of firing atmosphere between 0.1～10 Pa, it is ensured that gas intake, make nitrogen kiln be maintained at pressure-fired；Within 6～10 hours, burn till can obtain through 1380～1430 DEG C of insulations；This brick has the apparent porosity of 14～18%；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is at least more than 30 times；In goods, Cr2O3
Quality account for the 14～60% of goods gross mass.
The present invention utilizes nitrogen kiln to burn till, and nitrogen kiln has the performance characteristic being prone to adjust firing atmosphere partial pressure of oxygen, is controlled by the partial pressure of oxygen of firing atmosphere at 0.1～10 Pa, the α-Al that the present invention can be added by this partial pressure of oxygen2O3Powder and chromium oxide powder react at less than or equal to 1430 DEG C, form aluminum chromium solid solution, it is achieved thereby that the easy fired of the zircon corundum brick containing chromium oxide.The leftover pieces that the casting zirconia corundum granule that the present invention is added produces in process of production from fused cast zirconia-alumina brick, and fused cast zirconia-alumina brick introduces industrial alumina powder, zircon sand and a small amount of soda etc. in the feed, silicon dioxide in soda, industrial alumina powder and zircon sand decomposes melted in electric arc furnace, in fused cast zirconia-alumina brick, a fairly large number of glass phase is defined after cooling, cause fused cast zirconia-alumina brick compact structure and apparent porosity as little as 2%, under 1100 DEG C～water-cooled experimental condition, thermal shock number only has 1～3 time, thus thermal shock resistance is poor；Casting zirconia corundum granule equally exists above-mentioned glass phase, when firing temperature is higher than 1430 DEG C, oozes out the substrate entering brick, thus destroy the zircon corundum brick structure containing chromium oxide in granule, and the apparent porosity causing brick is low, and thermal shock resistance is deteriorated.The present invention uses nitrogen kiln, adjusts the partial pressure of oxygen of firing atmosphere, makes α-Al2O3Powder and chromium oxide powder raw material react at less than or equal to 1430 DEG C, overcome added casting zirconia corundum granule to ooze out caused apparent porosity when firing temperature is higher than 1430 DEG C and decline and the defect of structural deterioration；Introduce chromium oxide raw material and be also effectively improved the erosion-resisting characteristics of the zircon corundum brick containing chromium oxide.
A kind of preparation method of the zircon corundum brick containing chromium oxide, the ZrO of casting zirconia corundum granule2>=32%, glass exudation temperature > 1430 DEG C.
A kind of preparation method of the zircon corundum brick containing chromium oxide, the Cr of chrome oxide particle2O3≥94%；The Cr of chromium oxide fine powder2O3≥95%。
A kind of preparation method of the zircon corundum brick containing chromium oxide, the Cr of chromium oxide powder2O3≥99%。
A kind of preparation method of the zircon corundum brick containing chromium oxide, the Al of white fused alumina fine powder2O3≥98%。
A kind of preparation method of the zircon corundum brick containing chromium oxide, α-Al2O3The Al of powder2O3≥99%。
The preparation method of a kind of zircon corundum brick containing chromium oxide, described bonding agent is the one in aluminium dihydrogen phosphate, phosphoric acid solution, or the combination solution of two of which；Described bonding agent is the one in dextrin, glucose, calcium lignosulfonate solution, or two of which, the combination solution of three kinds.
The preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be preferably: granularity is the casting zirconia corundum granule 35～65% of 0.1～4 mm；Granularity is the chrome oxide particle 0～30% of 0.1～2 mm；The white fused alumina fine powder 0～17% of granularity ＜ 0.088 mm；α-the Al of granularity ＜ 0.044 mm2O3Powder 3～10%；Granularity is the chromium oxide fine powder 5～25% of 0.044～0.088 mm；The chromium oxide powder 2～10% of granularity ＜ 0.044 mm；Bonding agent is the 2～4% of above-mentioned raw materials gross weight.
Detailed description of the invention
Granule is most preferably mated with piling up by the present invention according to the distribution with continuous sized particles of piling up of discontinuous sized particles, adds α-Al2O3Powder, white fused alumina fine powder, chromium oxide fine powder, chromium oxide powder and bonding agent, produce a kind of zircon corundum brick containing chromium oxide.In the following embodiments, the ZrO of casting zirconia corundum granule2>=32%, glass exudation temperature > 1430 DEG C；The Cr of chrome oxide particle2O3≥94%；White fused alumina powder particle size ＜ 0.088 mm, Al2O3≥98%；Chromium oxide powder particle size is 0.044～0.088 mm, Cr2O3≥95%；Chromium oxide powder granularity ＜ 0.044 mm, Cr2O3≥99%；α-Al2O3Powder Particle Size ＜ 0.044 mm, Al2O3≥99%；By chromium oxide fine powder, chromium oxide powder, α-Al2O3Powder and white fused alumina fine powder are placed in mixing equipment and mix, the mixed powder being uniformly mixed；After casting zirconia corundum granule and chrome oxide particle are stirred moistening with bonding agent, add mixed powder mix homogeneously；Employing machine pressure mode prepares the base substrate of various required size, is dried 24～36 hours through 100～110 DEG C；Dried base substrate is placed in nitrogen kiln, adjusts the partial pressure of oxygen of firing atmosphere, it is ensured that burn till gas intake, make nitrogen kiln be maintained at pressure-fired；Within 6～10 hours, burn till can obtain through 1380～1430 DEG C of insulations.
Embodiment 1: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 65% of 0.1～4 mm, white fused alumina fine powder 17%, chromium oxide fine powder 13%, chromium oxide powder 2%, α-Al2O3Powder 3%；Bonding agent phosphate dihydrogen aluminum solution addition is above-mentioned raw materials gross weight 2.0%.Wherein, described casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1mm, carry out grating more than 0.1 mm, account for the 10% of a kind of zircon corundum brick raw material gross weight containing chromium oxide, 20% respectively, 20%, 15%.The partial pressure of oxygen adjusting firing atmosphere is positioned at 0.1 Pa, and 1430 DEG C of insulations are made for 6 hours.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.2～3.3g/cm3, apparent porosity is 17～18%, and cold crushing strength is 120～130 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 35 times；Chemical composition, Cr2O3: 14.5%.
Embodiment 2: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 65% of 0.1～4 mm, white fused alumina fine powder 10%, chromium oxide fine powder 5%, chromium oxide powder 10%, α-Al2O3Powder 10%；Bonding agent phosphate dihydrogen aluminum solution addition is above-mentioned raw materials gross weight 4.0%.Wherein, described casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1mm, carry out grating more than 0.1 mm, account for the 10% of a kind of zircon corundum brick raw material gross weight containing chromium oxide, 15% respectively, 25%, 15%.The partial pressure of oxygen adjusting firing atmosphere is positioned at 10 Pa, and 1380 DEG C of insulations are made for 10 hours.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.2～3.3g/cm3, apparent porosity is 16～17%, and cold crushing strength is 130～140 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 41 times；Chemical composition, Cr2O3: 14.7%.
Embodiment 3: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 65% of 0.1～4 mm, chromium oxide fine powder 25%, chromium oxide powder 5%, α-Al2O3Powder 5%；Bonding agent phosphoric acid solution addition is above-mentioned raw materials gross weight 3.0%.Wherein, described casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, carry out grating more than 0.1 mm, account for the 5% of a kind of zircon corundum brick raw material gross weight containing chromium oxide, 25% respectively, 15%, 20%.The partial pressure of oxygen adjusting firing atmosphere is positioned at 1Pa, and 1400 DEG C of insulations are made for 10 hours.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.3～3.4g/cm3, apparent porosity is 16～17%, and cold crushing strength is 120～130 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 39 times；Chemical composition, Cr2O3: 29.7%.
Embodiment 4: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 65% of 0.1～4 mm, chromium oxide fine powder 25%, chromium oxide powder 5%, α-Al2O3Powder 5%；Bonding agent dextrin solution addition is above-mentioned raw materials gross weight 3.0%.Wherein, described casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, carry out grating more than 0.1 mm, account for the 15% of a kind of zircon corundum brick raw material gross weight containing chromium oxide, 15% respectively, 25%, 10%.The partial pressure of oxygen adjusting firing atmosphere is positioned at 1Pa, within 10 hours, makes 1400 DEG C of insulations.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.3～3.4g/cm3, apparent porosity is 16～17%, and cold crushing strength is 130～140 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 37 times；Chemical composition, Cr2O3: 29.5%.
Embodiment 5: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 45% of 1～4 mm, and granularity is less than or equal to 1 mm, chrome oxide particle 20% more than 0.1 mm, chromium oxide fine powder 25%, chromium oxide powder 5%, α-Al2O3Powder 5%；Bonding agent calcium lignosulfonate solution addition is above-mentioned raw materials gross weight 3.0%.Wherein, described casting zirconia corundum granule, by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, carries out grating, accounts for the 10% of a kind of zircon corundum brick raw material gross weight containing chromium oxide, 20%, 15% respectively more than 1 mm.The partial pressure of oxygen adjusting firing atmosphere is positioned at 1Pa, and 1400 DEG C of insulations are made for 8 hours.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.7～3.8g/cm3, apparent porosity is 14～15%, and cold crushing strength is 130～140 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 38 times；Chemical composition, Cr2O3: 49.5%.
Embodiment 6: the preparation method of a kind of zircon corundum brick containing chromium oxide, raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 35% of 2～4 mm, and granularity is the chrome oxide particle 30% of 0.1～2 mm, chromium oxide fine powder 25%, chromium oxide powder 5%, α-Al2O3Powder 5%；Bonding agent glucose solution addition is above-mentioned raw materials gross weight 3.0%.Wherein, described casting zirconia corundum granule, by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, carries out grating, accounts for the 10% and 25% of a kind of zircon corundum brick raw material gross weight containing chromium oxide respectively more than 2 mm；Described chrome oxide particle, by less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, carries out grating, accounts for the 20% and 10% of a kind of zircon corundum brick raw material gross weight containing chromium oxide respectively more than 0.1 mm.The partial pressure of oxygen adjusting firing atmosphere is positioned at 1Pa, and 1400 DEG C of insulations are made for 10 hours.
The bulk density of a kind of zircon corundum brick containing chromium oxide that the present embodiment is obtained is 3.8～3.9g/cm3, apparent porosity is 14～15%, and cold crushing strength is 140～150 MPa；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is 33 times；Chemical composition, Cr2O3: 59.3%.
Claims (6)
1. the preparation method of the zircon corundum brick containing chromium oxide, it is characterised in that: granularity is the casting zirconia corundum granule 35～70% of 0.1～4 mm；Granularity is the chrome oxide particle 0～40% of 0.1～2 mm；The white fused alumina fine powder 0～20% of granularity ＜ 0.088 mm；α-the Al of granularity ＜ 0.044 mm2O3Powder 2～15%；Granularity is the chromium oxide fine powder 3～30% of 0.044～0.088 mm；The chromium oxide powder 1～15% of granularity ＜ 0.044 mm；Wherein casting zirconia corundum granule is by less than or equal to 4 mm, more than 3 mm, less than or equal to 3 mm, more than 2 mm, less than or equal to 2 mm, more than 1 mm, less than or equal to 1 mm, more than 0.1 mm sieving and grading after, account for 5～20%, 10～30%, 0～30%, 0～25% of a kind of zircon corundum brick raw material gross weight containing chromium oxide respectively；Bonding agent is the 1～6% of above-mentioned raw materials gross weight；The ZrO of casting zirconia corundum granule2>=32%, glass exudation temperature > 1430 DEG C；By chromium oxide fine powder, chromium oxide powder, α-Al2O3Powder and white fused alumina fine powder are placed in mixing equipment and mix, the mixed powder being uniformly mixed；After casting zirconia corundum granule and chrome oxide particle are stirred moistening with bonding agent, add mixed powder mix homogeneously；Employing machine pressure mode prepares the base substrate of various required size, is dried 24～36 hours through 100～110 DEG C；Dried base substrate is placed in nitrogen kiln, makes the partial pressure of oxygen of firing atmosphere between 0.1～10 Pa, it is ensured that gas intake, make nitrogen kiln be maintained at pressure-fired；Within 6～10 hours, burn till can obtain through 1380～1430 DEG C of insulations；This brick has the apparent porosity of 14～18%；Under 1100 DEG C～water-cooled experimental condition, thermal shock number is at least at 30 times；In goods, Cr2O3
Quality account for the 14～60% of goods gross mass.
The preparation method of a kind of zircon corundum brick containing chromium oxide the most according to claim 1, it is characterised in that: raw material components and percentage by weight be: granularity is the casting zirconia corundum granule 35～65% of 0.1～4 mm；Granularity is the chrome oxide particle 0～30% of 0.1～2 mm；The white fused alumina fine powder 0～17% of granularity ＜ 0.088 mm；α-the Al of granularity ＜ 0.044 mm2O3Powder 3～10%；Granularity is the chromium oxide fine powder 5～25% of 0.044～0.088 mm；The chromium oxide powder 2～10% of granularity ＜ 0.044 mm；Bonding agent is the 2～4% of above-mentioned raw materials gross weight.
The preparation method of a kind of zircon corundum brick containing chromium oxide the most according to claim 1 and 2, it is characterised in that: the Cr of chrome oxide particle2O3≥94%；The Cr of chromium oxide fine powder2O3≥95%；The Cr of chromium oxide powder2O3≥99%。
The preparation method of a kind of zircon corundum brick containing chromium oxide the most according to claim 1 and 2, it is characterised in that: the Al of white fused alumina fine powder2O3≥98%；α-Al2O3The Al of powder2O3≥99%。
The preparation method of a kind of zircon corundum brick containing chromium oxide the most according to claim 1 and 2, it is characterised in that: described bonding agent is the one in aluminium dihydrogen phosphate and phosphoric acid solution, or two kinds of solution combination.
The preparation method of a kind of zircon corundum brick containing chromium oxide the most according to claim 1 and 2, it is characterised in that: bonding agent is the one in dextrin, glucose, calcium lignosulfonate solution, or the combination of two kinds, three kinds solution therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765619.1A CN104446564B (en) | 2014-12-15 | 2014-12-15 | A kind of preparation method of the zircon corundum brick containing chromium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765619.1A CN104446564B (en) | 2014-12-15 | 2014-12-15 | A kind of preparation method of the zircon corundum brick containing chromium oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104446564A CN104446564A (en) | 2015-03-25 |
| CN104446564B true CN104446564B (en) | 2016-08-24 |
Family
ID=52893410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410765619.1A Active CN104446564B (en) | 2014-12-15 | 2014-12-15 | A kind of preparation method of the zircon corundum brick containing chromium oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104446564B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130450B (en) * | 2015-06-30 | 2017-07-28 | 湖州巨旺墙体材料有限公司 | A kind of anticorrosive fire resisting zircon corundum brick |
| CN105130407A (en) * | 2015-09-02 | 2015-12-09 | 湖州品创孵化器有限公司 | Fire-resistant zirconium corundum bricks with strong high-temperature folding resistance |
| CN105130408A (en) * | 2015-09-02 | 2015-12-09 | 湖州品创孵化器有限公司 | Fire-resistant zircon corundum bricks high in wear resistance at high temperature |
| CN107721397A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina chamotte and preparation method thereof |
| CN109970437A (en) * | 2019-04-26 | 2019-07-05 | 宜兴兴贝耐火材料制品有限公司 | A kind of dangerous waste incinerator Al2O3-Cr2O3-ZrO2Brick and preparation method thereof |
| CN110002887A (en) * | 2019-05-09 | 2019-07-12 | 山西普皓环保科技有限公司 | The refractory material and preparation method thereof of ash attack under the conditions of a kind of high temperature resistant |
| CN112745110A (en) * | 2020-12-07 | 2021-05-04 | 北京金隅通达耐火技术有限公司 | High-density zirconia-corundum brick for hazardous waste disposal rotary kiln |
| CN114507077B (en) * | 2022-01-06 | 2023-01-17 | 瑞泰科技股份有限公司 | Fusion casting zirconium-chromium corundum refractory brick and preparation method thereof |
| CN116903353B (en) * | 2023-09-14 | 2023-12-29 | 北京利尔高温材料股份有限公司 | Long-service-life ladle bottom brick and preparation method thereof |
| CN117430438B (en) * | 2023-12-20 | 2024-03-12 | 中钢洛耐科技股份有限公司 | Preparation method and application of high-purity chromium-zirconium refractory material for red mud iron recovery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079652A (en) * | 2010-11-22 | 2011-06-01 | 武汉科技大学 | High thermal shock resisting Cr2O3-Al2O3-ZrO2 brick and production method thereof |
-
2014
- 2014-12-15 CN CN201410765619.1A patent/CN104446564B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079652A (en) * | 2010-11-22 | 2011-06-01 | 武汉科技大学 | High thermal shock resisting Cr2O3-Al2O3-ZrO2 brick and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104446564A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104446564B (en) | A kind of preparation method of the zircon corundum brick containing chromium oxide | |
| CN110845245B (en) | Compact high-purity zirconia refractory product | |
| CN104892021B (en) | A kind of electronics fume purifier open pore ceramic material and preparation method thereof | |
| JP2015038031A (en) | Sintered refractory product exhibiting enhanced thermal shock resistance | |
| CN105645977A (en) | Air brick for special steel refining and preparation method thereof | |
| CN107573098A (en) | A kind of lightweight castable for sintering ignition furnace | |
| CN104446390A (en) | Preparation method for magnetism-containing modified corundum composite material | |
| CN107619286A (en) | A kind of preparation method of corundum-mullite sagger | |
| CN107056261A (en) | A kind of castable refractory | |
| CN105084916B (en) | A kind of anticorrosive magnesium-aluminium fire resistant materials and preparation method thereof | |
| CN106167398A (en) | honeycomb ceramic heat accumulator and preparation method thereof | |
| CN106242593A (en) | Low creep andalusite composite refractory brick and its preparation method and application | |
| JP2015218078A (en) | Light weight thermal insulation alumina and magnesia refractory | |
| JP2007326733A (en) | Manufacturing method of heat insulation gradient material and heat insulation gradient material | |
| CN109095902B (en) | Paving brick for glass kiln and production process thereof | |
| CN106365646A (en) | Refractory | |
| CN104876605A (en) | Refractory brick for boiler | |
| CN102320844B (en) | Aluminum-magnesium-zirconium brick for RH impregnating pipe and circulating pipe and preparation method thereof | |
| CN103922759B (en) | Preparation method of silicon carbide wear-resistant fireproof wind-guiding wall crossbeam and wind-guiding wall brick | |
| CN106977216A (en) | Anti-erosion liner for aluminium melting furnace and preparation method thereof | |
| CN104829249A (en) | Method for preparing high-alumina refractory brick | |
| JP2016199449A (en) | Monolithic refractory composition and monolithic refractory | |
| CN108117401B (en) | Quick-drying self-flow castable for permanent layer of ladle | |
| CN103360088B (en) | A kind of copper smelting-furnace rare oxygen combustor nozzle brick and making method | |
| CN106927700B (en) | One kind barium silicate cement containing baryta fledspar and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |