Nowadays, we're hoping our best to be certainly one of the top exporters in our area to satisfy consumers additional will need for Manufacturer of Silicon Mullite Brick, Shed plate for production of sanitary ceramics, Creep resistant clay brick. Our strict production management systems always ensure stable and high quality products. In the fierce market competition, our company can achieve steady development relying on a market-oriented, quality of life, as well as technological innovation.
1,Description of Andalusite Mullite Brick for Hot Blast Stove:: heating andalusite to 1300 ℃ will transform mullite phase, enhance the product's resistance to rapid cooling and heating, improve the product's impact resistance and load softening temperature. Hongzhu stone can be directly added without calcination to improve the creep resistance of mullite brick. This kind of composite brick has excellent oxidation resistance, high temperature resistance, spalling resistance, high temperature compressive strength and flexural strength. Therefore, the product is widely used in important areas of kilns.The volume expansion of mullite in the process of mullite formation at high temperature can effectively offset the sintering shrinkage at high temperature, thus making the volume of the product stable. The addition of andalusite at high temperature is transformed into mullite, which improves the content of mullite. At the same time, the interweaved structure formed by needle column mullite improves the thermal shock stability of the product.Andalusite is not completely mullitized, forming a number of composite structures, and the thermal shock stability of the products is improved due to the mismatch of expansion coefficients of various minerals. When andalusite is added into the matrix, the microstructure of knitted mullite interwoven with each other is formed in the matrix after Mullitization of andalusite at high temperature, which can effectively improve the load softening temperature and creep resistance of products.
2,Index of Andalusite Mullite Brick for Hot Blast Stove:
ITEM | JRM-65 | JRM-60 | JRM-57 |
Al2O3 % | ≥65 | ≥60 | ≥57 |
Fe2O3 % | ≤1.0 | ≤1.2 | ≤1.5 |
TiO2 % | ≤0.5 | ≤0.5 | ≤0.6 |
K2O+Na2O % | ≤0.6 | ≤0.6 | ≤0.6 |
Apparent porosity % | ≤22 | ≤22 | ≤22 |
B.D g/cm3 | ≥2.50 | ≥2.45 | ≥2.40 |
Cold crushing strength Mpa | ≥55 | ≥50 | ≥45 |
Reheating linear change % | 1500℃×4h ±0.2 | 1500℃×4h ±0.2 | 1400℃×4h ±0.2 |
Thermal shock resistance 1100℃,water cooling,times | 1500℃×20-50h 0.2 | 1450℃×20-50h 0.2 | 1400℃×20-50h 0.2 |
Refractoriness under load ℃ | ≥1680 | ≥1650 | ≥1600 |
Creep rate(0.2Mpa) % | ＞25 | ≥25 | ≥25 |
3,Performance of Andalusite Mullite Brick for Hot Blast Stove:
1) The product has excellent thermal shock resistance and spalling resistance
2) Low creep rate and good stability at high temperature
3) High temperature, good erosion resistance and wear resistance
4) Strong slag corrosion resistance and atmospheric corrosion resistance
4, Product Usage: Hot blast stove wall, checker brick,furnace top,combustion chamber.
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5.Good feedback of product use effect,the products have been exported toPakistan, Russia, Mexico
6.We are a professional supplier, who can provide customers with free product technology, use and other issues.
Do you want to find a professional supplier of refractory products?
Do you want to find a stable and credible supplier?
Then please contact with us
Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com
TEL: 86-0533-4188518 / FAX: 86-0533-4188518
Rose:+86-13275332819(wechat/whatsapp number)
We take the high starting point, the high investment, the high quality as the development strategy, is takes the research and development, the manufacture, the sale and the after-sales service as a body Anti-Corrosion Carbon Brick Are Used for Phosphoric Acid Reaction Tank, Digestion Tank and Storage Tank manufacture enterprise. We serve our customers with professional knowledge, credibility, ethics, steadfastness and diversification, welcome you! We regard talents as the greatest wealth of the company and regard team building as the top priority of all work.
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