CN101367665A - Sintered alpha-beta aluminum oxide brick - Google Patents
Sintered alpha-beta aluminum oxide brick Download PDFInfo
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- CN101367665A CN101367665A CNA2008101688210A CN200810168821A CN101367665A CN 101367665 A CN101367665 A CN 101367665A CN A2008101688210 A CNA2008101688210 A CN A2008101688210A CN 200810168821 A CN200810168821 A CN 200810168821A CN 101367665 A CN101367665 A CN 101367665A
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- beta alumina
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Abstract
The invention relates to a sintering alpha-beta alumina brick, and the formula comprises: 35 to 50 percent of 5 to 1mm alpha-beta alumina grain, 15 to 25 percent of alpha-beta alumina powder material more than 1mm, 15 to 20 percent of alpha-beta alumina powder material more than 0.088mm, 0 to 10 percent of alpha alumina powder material more than 0.044mm, 0 to 6 percent of alpha alumina powder material more than 0.010mm, 0 to 10 percent of pure calcium aluminate cement and 0 to 0.3 percent of sodium hexametahposphate . The sintering alpha-beta alumina brick has the advantages of ripe technology, convenient production and lower cost, is mainly used for parts of a glass melter contacting glass liquid especially parts of a material passage, and the like, is matched with casting alpha-beta alumina brick to be used in the glass melter, and can satisfy demands of the glass melter to the alpha-beta alumina brick.
Description
Technical field
The present invention relates to a kind of glass kiln with sintered alpha-beta aluminum oxide brick and preparation method thereof, belong to technical field of refractory materials.This kind refractory materials is a main raw material with electric smelting alpha-beta alumina particle and powder and αYang Hualv powder, with pure calcium aluminate cement and Sodium hexametaphosphate 99 is additive, according to proportioning above raw material being added a certain amount of moisture mixes and to join in the mould through vibrating forming after making, solidify dried base substrate and burn till through high temperature again, use as finished product after the cold working.Technical maturity of the present invention, easy to make, cost is lower, products made thereby is mainly used in glass melter contact glass metal position, the position such as particularly expects.
Background technology
Modern Glass Melting Tank is day by day harsh for the requirement of refractory materials, the long lifetime, increasing at the consumption of glass melter to the oligosaprobic refractory materials of glass metal.The alpha-beta alumina refractory materials has above advantage, so the fused cast alpha-beta alumina brick constantly increases in the configuration amount of glass melter in recent years.The fused cast alpha-beta alumina refractory materials proves in the use experience of glass melter: this kind refractory materials has extraordinary anti-glass metal erosion performance below 1350 ℃, and low to the pollution tendency of glass metal; Be used for flame space, also have alkali resistant steam erosive advantage.But adopt casting method to produce the goods of alpha-beta alumina refractory materials for simple shape, quality product and yield rate can guarantee, if produce complex-shaped goods or ultra-large type goods (for example big moulding mixture of glass kiln road), because shrinkage cavity and annealing stress, the quality fluctuation of product is big, yield rate is low, is difficult to realize suitability for industrialized production.
The user is increasing to the demand of alpha-beta alumina refractory materials now, but only adopt founding to produce this kind refractory materials and can not satisfy the demand of glass industry fully for the high-grade refractory materials of alpha-beta alumina matter, therefore propose the present invention, develop a kind of glass kiln sintered alpha-beta aluminum oxide brick.It is low that the fused cast alpha-beta alumina brick has glassy phase content, and anti-glass metal erosion performance is good, does not pollute advantages such as glass, is the high-grade refractory materials that is used for the glass melter low-temperature region.The cooling end of glass melter or operate portions trend towards using the fused cast alpha-beta alumina brick now, because alpha-beta aluminum oxide brick costs an arm and a leg, and be difficult to produce large-scale and complex-shaped goods with founding, limited of the application of this kind refractory materials at glass kiln low-temperature region.
Summary of the invention
The objective of the invention is to invent a kind of sintered alpha-beta aluminum oxide brick, make its anti-glass metal erosion performance good.The present invention proposes to adopt the normal temperature cast, and high-sintering process is produced glass kiln alpha-beta aluminum oxide brick.Adopt pouring procedure good to shape of products adaptability, and can be in the inhomogeneous concentrated shrinkage cavity of the inner formation of goods, the product internal stress is little, the yield rate height; Adopt high temperature to burn till and make each component at high temperature obtain abundant combination, help the performance of anti-glass metal erosion performance.This kind refractory materials is a main raw material with electric smelting alpha-beta alumina particle and powder and αYang Hualv powder, add a certain amount of pure calcium aluminate cement and Sodium hexametaphosphate 99 as wedding agent and water reducer, add a certain amount of moisture at normal temperatures, vibrating forming after stirring, the demoulding after overcuring has enough intensity then, go into klining after dry, use as finished product through the pre-assembling of cold working again.Main raw material electric smelting alpha-beta alumina particle and powder and αYang Hualv powder provide anti-glass metal erosion performance and good high-temperature performance; Pure calcium aluminate cement provides normal temperature and middle temperature bonding strength, and high temperature continues to react with other components such as αYang Hualv powder down and forms ceramic the combination, and according to above analysis, the refractory materials proportioning of invention is:
5-1mm alpha-beta alumina particle 35-50%
<1mm alpha-beta alumina powder 15-25%
<0.088mm alpha-beta alumina powder 15-20%
<0.044mm αYang Hualv powder 0-10%
<0.010mm αYang Hualv powder 0-6%
Pure calcium aluminate cement 0-10%
Sodium hexametaphosphate 99 0-0.3%
Described alpha-beta alumina particle is the high pure raw material with the electric smelting explained hereafter, Al
2O
393%, Na
2O≤4.
Described αYang Hualv powder is Al
2O
3The alumina powder of content 〉=98%.
Described pure calcium aluminate cement is the essential mineral composition with CA.
Embodiment
Embodiment 1:
5-1mm alpha-beta alumina particle 45%
<1mm alpha aluminium oxide particle 20%
<0.088mm Alpha-alumina powder 15%
<0.044mm αYang Hualv powder 8%
<0.005mm αYang Hualv powder 5%
Pure calcium aluminate cement 7%
Sodium hexametaphosphate 99 (adding) 0.2%
Each raw material through weighing, add that water stirs, cast maintenance, demoulding drying, burn till through 1650 ℃ * 6h again, survey traditional performance.The brick of anti-glass metal erosion test after with sintering is processed as 10 * 10 * 70mm batten and carries out the test of 1350 ℃ * 48h anti-erosion in common soda-lime glass liquation.The anti-erosion test is a reference sample with the fused cast alpha-beta alumina brick.Test result is as follows:
Embodiment 2:
5-1mm alpha-beta alumina particle 45%
<1mm alpha-beta alumina particle 20%
<0.088mm-βYang Hualv powder 18%
<0.044mm αYang Hualv powder 8%
<0.002mm αYang Hualv powder 5%
Pure calcium aluminate cement 4%
Sodium hexametaphosphate 99 (adding) 0.2%
Each raw material through weighing, add that water stirs, cast maintenance, demoulding drying, burn till through 1660 ℃ * 6h again, survey traditional performance.The brick of anti-glass metal erosion test after with sintering is processed as 10 * 10 * 70mm batten and carries out the test of 1350 ℃ * 48h anti-erosion in common soda-lime glass liquation.The anti-erosion test is a reference sample with the fused cast alpha-beta alumina brick.Test result is as follows:
By implementing above example, produced and had the good alpha-beta alumina refractory materials of anti-glass metal erosion performance, with the fused cast alpha-beta alumina brick in the supporting use of glass melter, can satisfy the demand of glass melter for alpha-beta aluminum oxide brick.
Claims (1)
1. sintered alpha-beta aluminum oxide brick, it is characterized in that: the prescription of described brick is:
5-1mm alpha-beta alumina particle 35-50%
<1mm alpha-beta alumina powder 15-25%
<0.088mm alpha-beta alumina powder 15-20%
<0.044mm αYang Hualv powder 0-10%
<0.010mm αYang Hualv powder 0-6%
Pure calcium aluminate cement 0-10%
Sodium hexametaphosphate 99 0-0.3%
Described alpha-beta alumina particle is the high pure raw material with the electric smelting explained hereafter, Al
2O
393%, Na
2O≤4, described αYang Hualv powder is Al
2O
3The alumina powder of content 〉=98%, described pure calcium aluminate cement are the essential mineral composition with CA.
Priority Applications (1)
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CN2008101688210A CN101367665B (en) | 2008-09-28 | 2008-09-28 | Sintered alpha-beta aluminum oxide brick |
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CN2008101688210A CN101367665B (en) | 2008-09-28 | 2008-09-28 | Sintered alpha-beta aluminum oxide brick |
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CN101367665A true CN101367665A (en) | 2009-02-18 |
CN101367665B CN101367665B (en) | 2010-12-08 |
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Cited By (8)
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US9073773B2 (en) | 2011-03-11 | 2015-07-07 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process for glass object manufacture |
US9174874B2 (en) | 2011-03-30 | 2015-11-03 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process of forming and using the refractory object |
CN105016754A (en) * | 2015-08-07 | 2015-11-04 | 山东嘉腾实业有限公司 | Preparation method of Al-99C dense alumina product special for glass supply channel |
US9216928B2 (en) | 2011-04-13 | 2015-12-22 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object including beta alumina and processes of making and using the same |
US9249043B2 (en) | 2012-01-11 | 2016-02-02 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object and process of forming a glass sheet using the refractory object |
CN107382342A (en) * | 2017-08-03 | 2017-11-24 | 济南圣泉倍进陶瓷过滤器有限公司 | A kind of exotic material and its preparation method and application |
WO2022090505A1 (en) * | 2020-11-02 | 2022-05-05 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | Sintered alumina product |
US11814317B2 (en) | 2015-02-24 | 2023-11-14 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory article and method of making |
Family Cites Families (3)
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CN1067359C (en) * | 1994-12-22 | 2001-06-20 | 沈阳耐火材料厂 | Method for increasing finished product rate of fusion-cast alpha-beta aluminum oxide bricks |
FR2832403B1 (en) * | 2001-11-20 | 2004-07-23 | Saint Gobain Ct Recherches | NON-SHAPED REFRACTORY COMPOSITION, IN PARTICULAR FOR THE PRODUCTION OF SOLES FROM A GLASS FURNACE |
CN100486932C (en) * | 2007-06-30 | 2009-05-13 | 郑州大学 | High-purity corundum pouring material containing nano calcium carbonate and preparation method thereof |
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2008
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US9714185B2 (en) | 2011-03-11 | 2017-07-25 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process for glass object manufacture |
US9073773B2 (en) | 2011-03-11 | 2015-07-07 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process for glass object manufacture |
US9174874B2 (en) | 2011-03-30 | 2015-11-03 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process of forming and using the refractory object |
US9796630B2 (en) | 2011-03-30 | 2017-10-24 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object, glass overflow forming block, and process of forming and using the refractory object |
US9216928B2 (en) | 2011-04-13 | 2015-12-22 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object including beta alumina and processes of making and using the same |
US9249043B2 (en) | 2012-01-11 | 2016-02-02 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object and process of forming a glass sheet using the refractory object |
US9902653B2 (en) | 2012-01-11 | 2018-02-27 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object and process of forming a glass sheet using the refractory object |
US10590041B2 (en) | 2012-01-11 | 2020-03-17 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory object and process of forming a glass sheet using the refractory object |
US11814317B2 (en) | 2015-02-24 | 2023-11-14 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory article and method of making |
CN105016754A (en) * | 2015-08-07 | 2015-11-04 | 山东嘉腾实业有限公司 | Preparation method of Al-99C dense alumina product special for glass supply channel |
CN107382342A (en) * | 2017-08-03 | 2017-11-24 | 济南圣泉倍进陶瓷过滤器有限公司 | A kind of exotic material and its preparation method and application |
WO2022090505A1 (en) * | 2020-11-02 | 2022-05-05 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | Sintered alumina product |
FR3115782A1 (en) * | 2020-11-02 | 2022-05-06 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | ALUMINOUS SINTERED PRODUCT |
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