CN101811879A - Al2O3-SiO2-SiC-based jet material for foundry ladle - Google Patents
Al2O3-SiO2-SiC-based jet material for foundry ladle Download PDFInfo
- Publication number
- CN101811879A CN101811879A CN200910046578A CN200910046578A CN101811879A CN 101811879 A CN101811879 A CN 101811879A CN 200910046578 A CN200910046578 A CN 200910046578A CN 200910046578 A CN200910046578 A CN 200910046578A CN 101811879 A CN101811879 A CN 101811879A
- Authority
- CN
- China
- Prior art keywords
- sic
- percent
- sio
- jetting material
- hot metal
- 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.)
- Granted
Links
Abstract
The invention relates to an Al2O3-SiO2-SiC-based refractory material, in particular to an Al2O3-SiO2-SiC-based jet material for wet jet construction of a foundry ladle. The Al2O3-SiO2-SiC-based jet material for the foundry ladle comprises the following components in percentage by weight: 45 to 65 percent of sintered mullite, 5 to 15 percent of SiC, 7 to 18 percent of brown aluminium oxide or special-grade alumina, 5 to 10 percent of Al2O3 super-micro powder, 4 to 8 percent of high-aluminum micro powder, 2 to 5 percent of silicon micro powder, 1.5 to 3 percent of calcium aluminate cement, and 6 percent of balance. The granularity of the Al2O3 super-micro powder is leas than or equal to 2 microns; the purity of Al2O3 in the high-aluminum micro powder is more than or equal to 88 percent, and the granularity is less than or equal to 5 microns; and the purity of SiO2 in the silicon micro powder is more than or equal to 92 percent, and the granularity is less than 1 micron. The balance comprises 3 percent of andalusite and 3 percent of cyanite. The jet material has high strength and good thermal shock stability and corrosion resistance, and ensures good self-flowing property and pumping property.
Description
Technical field
The present invention relates to a kind of Al
2O
3-SiO
2-SiC fire resistant materials is in particular for the Al of hot metal ladle wet shotcrete technology construction
2O
3-SiO
2-SiC matter jetting material.
Background technology
The construction of the wet shotcrete technology of refractory materials both can be used to construct new refractory lining, also can be used for the repairing of old lining, and the wet shotcrete technology construction has many advantages, and therefore this method has obtained application more and more widely on Iron And Steel Industry in recent years.
Hot metal ladle is as the important tool of molten iron transhipment, and when toppling over molten iron, hot metal ladle bottom and bottom inner lining refractory can be subjected to washing away strongly, in the production process, and the molten iron of the splendid attire liner that can constantly wash away and wear and tear again in the hot metal ladle.Skim, scarfing cinder and when toppling over molten iron, hot metal ladle bag mouth refractory materials very easily is worn especially.In addition, hot metal ladle is packed into continually and is poured out molten iron and wait for that intermittently refractory materials can be subjected to the thermal stresses effect of rapid heat cycle, and the carbon containing liner also can be oxidized.In the hot metal pretreatment process, CaO, CaC
2, sweetening agent such as particle magnesium can form basic slag, and hot metal ladle is had very strong erosion action.Under a series of mechanical wears and chemical erosion effect, the hot metal ladle liner damages, and hot metal ladle itself produces melting loss, ftractures, peels off and damage.
At present, hot metal ladle bag mouth generally adopts Al
2O
3-SiC-C mould material, Bao Kou adopts both sides moldable construction.Because the bag mouth is a kettle mouth shape, shape is singularity very, and pug can trickle during mould material vibratory compaction, and the construction quality of mould material is difficult to be guaranteed.In the hot metal ladle use, bag mouthful more bonding slags of meeting and sweetening agent must stop and carry out scarfing cinder.Because bag mouthful mould material and moldable density and intensity are relatively poor, can be subjected to major injury during scarfing cinder.Like this, must repair the bag mouth.Because the life-span of bag mouth can not be synchronous with the bag wall, not only increased material consumption, and reduced the operating rate of hot metal ladle, also increased working strength of workers simultaneously.
The existing refractory materials patent relevant with the construction of hot metal ladle wet shotcrete technology is as follows:
Japanese patent laid-open 10-95678 discloses a kind of Al
2O
3The composition of-SiC-C matter jetting material is thought to obtain the jetting material that high-density, high strength, high erosion resistance and low moisture are constructed.Main raw material adopts fused corundom, contains 19% aluminum oxide super-fine powder (≤10 μ m), 1.0% silicon powder (≤1 μ m), water requirement 6.0%, non-cement combination, folding strength 6.1MPa after 1000 ℃ of burnings, folding strength 15.3MPa after 1450 ℃ of burnings.This patent has adopted numerous Al
2O
3Super-fine powder can significantly improve the cost of jetting material, for the mould material of non-cement, reaches 20% super-fine powder though added total amount because the combination of super-fine powder is unreasonable, in making under the high temperature acceleration of sintering to material not enough, intensity is not high.
Chinese patent CN1715245A discloses a kind of high alumina matter jetting material composition, is the ladle permanent lining jetting material.Main raw material adopts alumine, the high alumina micro mist of employing 10～18% and 1～4% silicon powder, low cement combination, aluminous cement 5%.Do back folding strength 8.5～12.1MPa, folding strength 12.0～14.2MPa after 1500 ℃ of burnings for 110 ℃.The target of this patent is to be used for permanent liner, although jetting material has reached higher intensity, if be used for working lining, then the micro mist cooperation is unreasonable, the erosion resistance that adds affiliation reduction material of a large amount of high alumina micro mists.
Summary of the invention
The object of the present invention is to provide a kind of Al that is used for hot metal ladle
2O
3-SiO
2-SiC matter jetting material, this jetting material has high strength, good thermal shock resistance and erosion resistance, but and good self drainage and pumping arranged.
The present invention is achieved in that a kind of Al that is used for hot metal ladle
2O
3-SiO
2-SiC matter jetting material, its composition is by weight percentage: fused mullite 45～65%, SiC 5～15%, brown corundum or high grade bauxite 7～18%, Al
2O
3Super-fine powder 5～10%, high alumina micro mist 4～8%, silicon powder 2～5%, aluminous cement 1.5～3%, all the other compositions 6%.
Described Al
2O
3The granularity of super-fine powder≤2 μ m; Al in the high alumina micro mist
2O
3Purity 〉=88%, and granularity≤5 μ m; SiO in the silicon powder
2Purity 〉=92%, and granularity≤1 μ m.
Described all the other compositions account for the jetting material total weight percent: andaluzite 3%, kyanite 3%.
Al in the described fused mullite
2O
3Purity 〉=70%, and granularity accounts for 14～20% of fused mullite gross weight less than the fused mullite of 0.088mm, remaining size range is 5～0.088mm.
Al in the described brown corundum
2O
3Purity 〉=95%, and the size range of brown corundum is 1～0.088mm; Al in the high grade bauxite
2O
3Purity 〉=more than 86%, and the size range of high grade bauxite is 5～0.088mm.
The purity of described SiC 〉=95%, and the granularity of SiC is less than 0.088mm.
Described jetting material need add following admixture, by every kilogram of jetting material add-on is:
Poly carboxylic acid ether 0.8～1 gram or Sodium hexametaphosphate 99 0.5～0.8 gram+naphthalenesulfonate formaldehyde condensation compound 0.5～0.8 gram, explosion-proof fiber 0.4 gram, sodium aluminate solution 0～1.6ml.
The present invention adopts Al
2O
3-SiO
2-SiC matter jetting material, main raw material adopts fused mullite, brown corundum (or high grade bauxite) and SiC.According to above-mentioned content and purity, the Al in the jetting material that finally obtains
2O
3Be 60～68%, SiO
2Be 13～24%, SiC is 6～15%.Such composition can guarantee that material has enough resistance to foulings, and simultaneously, main raw material is fused mullite and SiC, but the sufficient to guarantee material has good thermal shock resistance.
In order to make material have good self drainage to satisfy the requirement of pumping, can under middle high temperature, promote the sintering of material again effectively, to obtain higher intensity, the present invention adds three kinds of micro mists and controlled contents and granularity.Al
2O
3Super-fine powder 5～10%, if less than 5%, the self drainage of material not so good (referring to table 3) then; If surpass 10%, then significantly improve the cost of material.High alumina micro mist 4～8%, if less than 4%, then the effect of acceleration of sintering enhanced is not obvious; If it is surpass 8%, then unfavorable to the resistance to fouling of material.Silicon powder 2～5%.If less than 2%, on the one hand, silicon powder improves the effect not obvious (referring to table 2) of material self drainage; On the other hand, the normal temperature strength of material is on the low side, and middle high temperature promotes that down the effect of material agglomerating is not obvious; If surpass 5%, then the contraction of the sintering of material is bigger than normal, and unfavorable to resistance to fouling.
In order to make material have good self drainage and erosion resistance, the present invention adopts the ultra-low cement combination technology, and aluminous cement content is 1.5～3%, if cement less than 1.5%, then the normal temperature strength of material is on the low side, may peel off because of insufficient strength during the jetting material baking; If surpass 3%, then can increase the water requirement of material, and unfavorable to resistance to fouling.In order to prevent that material from producing contraction under middle high temperature, add andaluzite and kyanite, temperature was shunk during andaluzite mainly prevented, and kyanite mainly prevents high-temperature shrinkage.
The dispersion agent that adds adopts the poly carboxylic acid ether with efficient water-reduction, or phosphoric acid salt+naphthalenesulfonate formaldehyde condensation compound.Setting accelerator adopts NaAlO
2The aqueous solution of (sodium aluminate), CaCl
2Or AlCl
3Also can reach effect same.In order to prevent to toast time cracking, add explosion-proof fiber.Can't pumping when temperature is higher in order to prevent the jetting material premature set from losing self drainage, can also add boric acid or citric acid as retardant.
Jetting material is a kind of mould material with good self drainage before injection, but therefore to the assurance of jetting material self drainage so that material has good pumping is very necessary.Table 1, table 2 have been listed cement and silicon powder content respectively to the influence of matrix from degree of mobilization.Matrix is from the measuring method of flow valuve: take by weighing 152g matrix (fine powder below the 0.088mm) according to prescription, in beaker, stir, under the certain situation of amount of water and churning time, mud is poured on the poly (methyl methacrylate) plate, measure diameter that mud spreads out promptly from flow valuve.
The test that table 1, table 2 are listed, other component proportions is all constant.As can be seen, the increase along with cement content obviously descends from flow valuve.Consider the contribution of cement, determine that cement content is 1.5～3% normal temperature strength.Along with the increase of silicon powder content, though progressively descend from flow valuve, it is little to influence amplitude.Therefore, determine that silicon powder content of the present invention is 2～5%.
Table 1 cement content is to the influence of matrix from degree of mobilization
| Cement content (%) | ??1.5 | ??2.0 | ??2.5 |
| From flow valuve (mm) | ??136 | ??134 | ??130 |
Table 2 silicon powder content is to the influence of matrix from degree of mobilization
| Silicon powder (%) | ??2.5 | ??3.0 | ??3.5 | ??4.0 | ??4.5 |
| From flow valuve (mm) | ??135.5 | ??135 | ??135 | ??134.5 | ??134 |
Table 3 has been listed the micro mist combination to the influence of jetting material from flow valuve, also is that other condition is identical, only changes the micro mist combination.Jetting material is from the measuring method of flow valuve: various raw materials are put into sand mill after by the proportioning weighing, do and mix after 1 minute, add water, mix after 4 minutes, and pug is poured in cone Φ 100/ Φ 70 * 60, and surface usefulness scraper is floating.Then, upwards take away cone, make the diameter of mould material gravity flow after do not flow, the measurement pug is sprawled promptly from flow valuve.The test of table 3, other condition is identical.Test-results shows, L1 is two kinds of micro mists combinations, though pug is very big from flow valuve, the associativity between particle and the matrix is poor, and the resistance in pipeline during pumping can be bigger, even cause line clogging.Though L2, L3 and L4's is not very big from flow valuve, the associativity between particle and the matrix is better, but the pumping of pug is better.
Table 3 micro mist combination to jetting material from flow valuve with in conjunction with the influence of situation
The present invention has following beneficial effect: the present invention adopts Al
2O
3-SiO
2-SiC matter jetting material can guarantee that by suitable proportioning material has enough resistance to foulings, simultaneously, and main raw material fused mullite and SiC, but the sufficient to guarantee material has good thermal shock resistance.Three kinds of micro mist combinations of the present invention make material have good self drainage to satisfy the requirement of pumping, can promote the sintering of material again under middle high temperature effectively, obtain higher intensity.In addition, the present invention adopts the ultra-low cement combination technology to make material have good self drainage and erosion resistance.
Embodiment
Table 4 and table 5 have been listed the composition proportion of each example and comparative example, because jetting material contains cement, can introduce CaO, and Fe
2O
3Deng the existence of impurity, therefore, Al
2O
3, SiO
2With SiC three's sum less than 100%.
Table 6, table 7 are the performance of each example and comparative example.
The proportioning 1 (wt%) of table 4 example
The proportioning 2 (wt%) of table 5 example
The performance 1 of table 6 example
The performance 2 of table 7 example
From above-mentioned performance as can be seen, although the present invention adopts the ultra-low cement combination, the combination of three kinds of micro mists is suitable, but makes jetting material when having good pumping, has very high middle gentle hot strength.The middle temperature of A2, A3, A6, A7 and A8 is burnt the back folding strength about 20MPa, and compressive strength has reached more than the 130MPa, and it is higher that high temperature burns back intensity, compressive strength even near 200MPa.A9 since after adding setting accelerator pug lost flowability, although vibrating casting during sample preparation also can't obtain very fine and close mould material, cause the void content of sample to increase, intensity reduces, even now, the absolute value of intensity is very high.Comparative examples A 1 is owing to adopt brown fused alumina micropowder, and sintering enhanced effect at high temperature is relatively poor, makes intensity relatively low, and A2 adopts corundum powder, though performance is pretty good, cost is higher.The strength property that jetting material of the present invention is superior is suitable for using at hot metal ladle bag mouth, not only can resist washing away strongly of molten iron, and can prevent to skim and the damage of scarfing cinder to bag mouthful refractory materials.The present invention also can be used for the wet shotcrete technology of hot metal ladle cylinder-packing, metal mixer car and casting house and builds lining and repairing.
Claims (7)
1. Al who is used for hot metal ladle
2O
3-SiO
2-SiC matter jetting material is characterized in that, its composition is by weight percentage:
Fused mullite 45～65%,
SiC?????????????????5～15％，
Palm fibre corundum or high grade bauxite 7～18%,
Al
2O
3Super-fine powder 5～10%,
High alumina micro mist 4～8%,
Silicon powder 2～5%,
Aluminous cement 1.5～3%,
All the other compositions 6%.
2. the Al that is used for hot metal ladle as claimed in claim 1
2O
3-SiO
2-SiC matter jetting material is characterized in that, described Al
2O
3The granularity of super-fine powder≤2 μ m; Al in the high alumina micro mist
2O
3Purity 〉=88%, and granularity≤5 μ m; SiO in the silicon powder
2Purity 〉=92%, and granularity≤1 μ m.
3. the Al that is used for hot metal ladle as claimed in claim 1 or 2
2O
3-SiO
2-SiC matter jetting material is characterized in that, described all the other compositions account for the jetting material total weight percent and are:
Andaluzite 3%
Kyanite 3%.
4. the Al that is used for hot metal ladle as claimed in claim 1 or 2
2O
3-SiO
2-SiC matter jetting material is characterized in that, Al in the described fused mullite
2O
3Purity 〉=70%, and granularity accounts for 14～20% of fused mullite gross weight less than the fused mullite of 0.088mm, remaining size range is 5～0.088mm.
5. the Al that is used for hot metal ladle as claimed in claim 1 or 2
2O
3-SiO
2-SiC matter jetting material is characterized in that, Al in the described brown corundum
2O
3Purity 〉=95%, and the size range of brown corundum is 1～0.088mm; Al in the high grade bauxite
2O
3Purity 〉=more than 86%, and the size range of high grade bauxite is 5～0.088mm.
6. the Al that is used for hot metal ladle as claimed in claim 1 or 2
2O
3-SiO
2-SiC matter jetting material is characterized in that, the purity of described SiC 〉=95%, and the granularity of SiC is less than 0.088mm.
7. the Al that is used for hot metal ladle as claimed in claim 1 or 2
2O
3-SiO
2-SiC matter jetting material is characterized in that described jetting material need add following admixture, by every kilogram of jetting material add-on is:
Poly carboxylic acid ether 0.8～1 gram or Sodium hexametaphosphate 99 0.5～0.8 gram+naphthalenesulfonate formaldehyde condensation compound 0.5～0.8 gram, explosion-proof fiber 0.4 gram, sodium aluminate solution 0～1.6ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910046578A CN101811879B (en) | 2009-02-24 | 2009-02-24 | Al2O3-SiO2-SiC-based jet material for foundry ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910046578A CN101811879B (en) | 2009-02-24 | 2009-02-24 | Al2O3-SiO2-SiC-based jet material for foundry ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101811879A true CN101811879A (en) | 2010-08-25 |
| CN101811879B CN101811879B (en) | 2012-10-10 |
Family
ID=42619270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910046578A Expired - Fee Related CN101811879B (en) | 2009-02-24 | 2009-02-24 | Al2O3-SiO2-SiC-based jet material for foundry ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101811879B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040386A (en) * | 2010-11-01 | 2011-05-04 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102503491A (en) * | 2011-11-10 | 2012-06-20 | 武汉钢铁(集团)公司 | Castable for ladle deslagging plate, and preparation method and applicable of castable |
| CN102775168A (en) * | 2012-07-30 | 2012-11-14 | 浙江锦诚耐火材料有限公司 | Preparation method of blast furnace tapping channel |
| CN103664204A (en) * | 2013-11-12 | 2014-03-26 | 长兴兴鹰新型耐火建材有限公司 | Silicon carbide anti-skinning fire-resistant spray paint |
| CN104775004A (en) * | 2015-03-25 | 2015-07-15 | 芜湖县天海耐火炉料有限公司 | Corundum component containing calcium composite deoxidizer and preparation method thereof |
| CN106927838A (en) * | 2017-02-17 | 2017-07-07 | 北京兰海金诚耐火材料有限责任公司 | A kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre |
| CN107162609A (en) * | 2017-05-14 | 2017-09-15 | 长兴县煤山工业炉料有限公司 | A kind of wet spray material |
| CN109721342A (en) * | 2019-02-22 | 2019-05-07 | 江苏江能新材料科技有限公司 | A kind of tapping pouring refractories and preparation method thereof |
| CN113416067A (en) * | 2021-06-15 | 2021-09-21 | 武汉钢铁有限公司 | Anti-oxidation impact-resistant castable for ladle, preparation method and ladle |
| CN113860895A (en) * | 2021-11-02 | 2021-12-31 | 江苏嘉耐高温材料股份有限公司 | Circular economy type slag stopping wall and preparation method thereof |
| CN114656264A (en) * | 2022-02-10 | 2022-06-24 | 安徽宁火新材料有限公司 | High-strength castable for salt bath quenching furnace |
| CN115872757A (en) * | 2022-11-29 | 2023-03-31 | 钢城集团凉山瑞海实业有限公司 | Novel high-temperature-resistant heat-insulating repair coating and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328220C (en) * | 2006-02-27 | 2007-07-25 | 成都府天新材料科技有限公司 | Production of fire-proofing material for hot metal bag ventilating bricks |
| CN100482612C (en) * | 2006-08-30 | 2009-04-29 | 宝山钢铁股份有限公司 | Fire resistive material for coke oven door |
| CN100439290C (en) * | 2007-05-08 | 2008-12-03 | 上海柯瑞冶金炉料有限公司 | Alumina base andalusite-SiC-C brick, manufacturing method and its application |
| CN100522882C (en) * | 2007-08-30 | 2009-08-05 | 重庆钢铁(集团)有限责任公司 | Fire resistive material for desulfurization spray gun and producing technique for the desulfurization spray gun |
| CN101367667A (en) * | 2008-09-25 | 2009-02-18 | 武汉钢铁(集团)公司 | Flame-proof mending material for foundry ladle and manufacturing method thereof |
-
2009
- 2009-02-24 CN CN200910046578A patent/CN101811879B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040386B (en) * | 2010-11-01 | 2012-09-26 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102040386A (en) * | 2010-11-01 | 2011-05-04 | 濮阳濮耐高温材料（集团）股份有限公司 | Torpedo can spouting material and spouting method thereof |
| CN102503491A (en) * | 2011-11-10 | 2012-06-20 | 武汉钢铁(集团)公司 | Castable for ladle deslagging plate, and preparation method and applicable of castable |
| CN102503491B (en) * | 2011-11-10 | 2014-02-26 | 武汉钢铁(集团)公司 | Castable for ladle deslagging plate, and preparation method and application of castable |
| CN102775168B (en) * | 2012-07-30 | 2014-05-21 | 浙江锦诚耐火材料有限公司 | Preparation method of blast furnace tapping channel |
| CN102775168A (en) * | 2012-07-30 | 2012-11-14 | 浙江锦诚耐火材料有限公司 | Preparation method of blast furnace tapping channel |
| CN103664204B (en) * | 2013-11-12 | 2015-11-25 | 长兴兴鹰新型耐火建材有限公司 | Silicon carbide resistive connection skin fire-proof spray coating |
| CN103664204A (en) * | 2013-11-12 | 2014-03-26 | 长兴兴鹰新型耐火建材有限公司 | Silicon carbide anti-skinning fire-resistant spray paint |
| CN104775004A (en) * | 2015-03-25 | 2015-07-15 | 芜湖县天海耐火炉料有限公司 | Corundum component containing calcium composite deoxidizer and preparation method thereof |
| CN106927838A (en) * | 2017-02-17 | 2017-07-07 | 北京兰海金诚耐火材料有限责任公司 | A kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre |
| CN106927838B (en) * | 2017-02-17 | 2020-04-17 | 北京兰海金诚耐火材料有限责任公司 | Steel fiber reinforced wear-resistant explosion-proof castable |
| CN107162609A (en) * | 2017-05-14 | 2017-09-15 | 长兴县煤山工业炉料有限公司 | A kind of wet spray material |
| CN109721342A (en) * | 2019-02-22 | 2019-05-07 | 江苏江能新材料科技有限公司 | A kind of tapping pouring refractories and preparation method thereof |
| CN113416067A (en) * | 2021-06-15 | 2021-09-21 | 武汉钢铁有限公司 | Anti-oxidation impact-resistant castable for ladle, preparation method and ladle |
| CN113860895A (en) * | 2021-11-02 | 2021-12-31 | 江苏嘉耐高温材料股份有限公司 | Circular economy type slag stopping wall and preparation method thereof |
| CN114656264A (en) * | 2022-02-10 | 2022-06-24 | 安徽宁火新材料有限公司 | High-strength castable for salt bath quenching furnace |
| CN115872757A (en) * | 2022-11-29 | 2023-03-31 | 钢城集团凉山瑞海实业有限公司 | Novel high-temperature-resistant heat-insulating repair coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101811879B (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101811879B (en) | Al2O3-SiO2-SiC-based jet material for foundry ladle | |
| CN100439290C (en) | Alumina base andalusite-SiC-C brick, manufacturing method and its application | |
| JP5656629B2 (en) | AZS fire resistant composition | |
| CN101857446B (en) | Refractory castable for desulfurization stirrer | |
| CN104496493B (en) | A kind of high temp durable composite aluminum magnesium green brick and preparation method thereof | |
| CN102491769A (en) | Composite bonding low-temperature constructional castable refractory | |
| CN104226970B (en) | Optimization-type high life low-material-consumption smelts ladle | |
| CN104193354B (en) | A kind of tundish permanent layer mould material and preparation method thereof | |
| CN101367667A (en) | Flame-proof mending material for foundry ladle and manufacturing method thereof | |
| CN102030547B (en) | Unfired pyrophyllite hot metal ladle lining material and preparation method thereof | |
| CN107117945A (en) | Castable and tundish pushing off the slag part production technology | |
| CN101618966A (en) | Ladle castable | |
| CN103073311B (en) | Fast fill pouring material for working lining of swinging chute and preparation method of material thereof | |
| CN111348928A (en) | Filling fire clay for assembling tundish upper nozzle iron shell and preparation method thereof | |
| CN105753489B (en) | A kind of integrated stopper rod used for continuous casting and its manufacturing method | |
| CN104972103B (en) | Combined type permanent ladle layer pour mass | |
| CN103755366A (en) | Permanent lining castable of tundish | |
| CN105314989A (en) | Fireproof gunning material for working lining of foundry ladle and preparation method thereof | |
| CN103449832B (en) | High-strength casting material for runner swinging sliding nozzle and preparation method of high-strength casting material | |
| CN107986765A (en) | Blast furnace cracking resistance swing runner castable and preparation method thereof | |
| CN104311078A (en) | Castable for working layer of refining ladle slag line as well as preparation method and application of castable | |
| CN101786891A (en) | Air-set mold bulk material for continuous casting tundish and preparation method thereof | |
| CZ20003060A3 (en) | Basic, free flowing casting material and shaped parts produced from such material | |
| CN107010965B (en) | Quick-hardening type blast furnace hearth repairing material and preparation method thereof | |
| CN105000893A (en) | High temperature resistant composite crucible and manufacturing 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140224 |