Andalusite brick
With high Al2O3 content and low impurity content, andalusite is an ideal high-grade refractory material. Andalusite refractory bricks have excellent low thermal conductivity, high resistance to slag corrosion, and creep resistance. Refractory alunite bricks have high thermal strength, geringe Porosität, resistance to chipping and compression drop deformation, thermal shock resistance, and good refractoriness.
Andalusite bricks are mainly used in cooling walls, coke oven doors, hot blast stove lining, lattice, and so on in blast furnace, chemical, and ceramic industries. Refractory bricks can also be applied to the top of some metallurgical furnaces, the effect is better than silica bricks.
PER Refractories is a professional manufacturer of andalusite refractory bricks. We offer high-quality andalusite bricks and unfired andalusite bricks. You can contact us in time to get the cheap andalusite bricks price.
Parameters of Standard Andalusite Bricks
| Index | GX-135 | GX-140 | GX-150 | |
| Al2O3 | (%) ≥ | 65 | 65 | 65 |
| Fe2O3 | (%)≤ | 1.5 | 15 | 1 |
| Schüttdichte | (g/cm3) ≥ | 2.4 | 2.5 | 2.6 |
| Offensichtliche Porosität | (%)≤ | 22 | 22 | 20 |
| Kaltdruckfestigkeit | (Mpa) ≥ | 60 | 60 | 80 |
| 0.2Mpa Refractoriness Under Load | ℃≥ | 1520 | 1550 | 1600 |
| Feuerfestigkeit | ℃ ≥ | 1790 | 1790 | 1790 |
| (0.2Mpa, 20-50h, %)Creep rate | (%) | 0.2 | 1400℃ | 1400℃ |
| 0.2 | 0.2 | |||
| Thermal Shock Resistance (1000℃, water, quenching, cycle) | ℃ | 15 | 20 | 20 |
Advantages of PER's Andalusite Refractory Bricks:
1. High strength and wear resistance compared with traditional high alumina bricks.
2. Excellent thermal shock stability. Increase the service life of kiln lining and reduce the cost of refractory materials.
3. Excellent erosion resistance.
PER manufactured andalusite refractory bricks are suitable for blast furnaces, hot blast furnaces, equalization furnaces, steel ladles, cement rotary kilns, ceramic tunnel kilns and glass kilns, und andere Branchen.
The Difference Between Andalusite Mullite Bricks and Andalusite High Alumina Bricks
Andalusite High Alumina Brick
Andalusite high alumina bricks are made of andalusite as the main raw material, with bauxite added, after high-pressure molding, drying, and firing at 1500℃.
Andalusite high alumina brick is characterized by high-temperature resistance, high softening temperature under load, and low creep rate at high temperatures, and not used in the volume of high-temperature volumetric stability, the use of the coefficient of thermal expansion is a small, low coefficient of thermal conductivity.
Andalusite Mullite Brick
Rutilated mullite brick is a kind of refractory brick made by adding different ratios of rutilated mullite and mullite to the composite.
This kind of fire brick has the advantages of good oxidation resistance, strong refractoriness, high compressive strength, low specific gravity, good peeling resistance, high-temperature flexural strength, and long service life.
Andalusite refractories 1830 ℃, chemical corrosion resistance, adding andalusite in high alumina refractory bricks, can make high alumina bricks with abrasion resistance and higher softening temperature under load, better resistance to rapid cold and heat performance. It can densify the brick joints at high temperatures and improve the overall compactness of high alumina brick masonry, thus improving the resistance to slag permeability.
Zusamenfassend, erythrite mullite and erythrite high alumina bricks have the same but also have a big difference, erythrite mullite bricks than erythrite high alumina bricks price is higher than erythrite high alumina bricks high-temperature erosion resistance, erythrite mullite bricks good flexibility, peel resistance is a little stronger.
Characteristics of Andalusite Bricks
Andalusite refractory bricks are made of andalusite as raw material, adding silica powder, mullite powder, and other powders.
These materials are in proportion to the addition of binder, and strict control of raw material particle size, grade, and its TiO2, R2O, and other impurities, after batching, mixing, molding, drying, und Hochtemperaturbrand.
This can meet the modern blast furnace hot blast furnace different parts, different working environments use, to improve the service life of the blast furnace hot blast furnace is of great significance.
Andalusite refractory fire bricks will be transformed into mullite by heating, and after the transformation, it has a higher refractory performance.
Refractories can reach more than 1800 ℃, erythrite bricks have few impurities, and high-temperature strength decline is very small.
It is also resistant to rapid cold and heat, has high mechanical strength, strong thermal shock resistance, strong slag resistance, high load conversion point. And it has very high chemical stability (even insoluble in hydrofluoric acid) and very strong chemical corrosion resistance.
Industrial use of andalusite, mainly to take its role in high-temperature resistance. Andalusite at atmospheric pressure heated to 1350 ℃, after the beginning of the transformation into needle mullite. Mullite crystals are the only form of aluminosilicate that is stable at high temperatures.
Über PER Refractories Company
PER Refractories Company befindet sich in der Stadt Xinmi, Provinz Henan, die Heimatstadt der feuerfesten Materialien in China. Unser Unternehmen ist ein technologiebasiertes Feuerfestunternehmen, das R&D, Produktion, Verkauf, und technischer Service. Die reichen Ressourcen und die hervorragende Qualität des Gebiets bieten unvergleichliche hervorragende Bedingungen für die Herstellung von feuerfesten Materialien. Unsere Hauptprodukte sind feuerfeste Tonziegel, feuerfeste Steine mit hohem Tonerdegehalt, feuerfeste Kieselsteine, feuerfeste Magnesiumsteine, Mullit-Steine, Dämmsteine, und andere hochtemperaturbeständige Produkte.
PER betrachtet das Wichtigste, Wir glauben daran, jedes Produkt ernst zu nehmen und jeden Kunden aufrichtig zu empfangen. Um allen unseren Kunden schnelle und qualitativ hochwertige Ergebnisse zu liefern. PER Refractories ist Ihr vertrauenswürdigster Feuerfesthersteller und zuverlässiger Partner.
Firma PER Feuerfest ist die Produktionsbasis von Grün, Energie sparen, und umweltfreundliche neue feuerfeste Materialien. Unser Unternehmen hat ISO9001 bestanden:2008 internationale Zertifizierung von Qualitätssicherungssystemen und GB/T24001-2004 / ISO14001:2004 Zertifizierung von Umweltmanagementsystemen, Zertifizierung der Unternehmensqualitätsinspektionsstelle. Unsere Produkte werden gut in mehr als verkauft 20 Ländern auf der ganzen Welt. Sie sind die bevorzugten feuerfesten Produkte für die Metallurgie, Nichteisen, petrochemisch, Glas, Keramik, und andere Feuerfestindustrien.
