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1,Description of Spalling Resistance High-alumina Brick：
Adding zirconia fine powder to the high alumina brick batching,the solid solution of zirconia and alumina is changed during the high temperature sintering process, and small microcracks are formed, thus changing the internal structure of the product and improving the suddenly-changing temperature resistance of the product. compared with the general high alumina brick, The thermal shock resistance of the product has been improved by about three times. At the same time, the high temperature resistance,wear resistance and compactness of the product has also been greatly improved. It is widely used in many high temperature industrial furnaces.
2,Index of Spalling Resistance High-alumina Brick:
Item | JB70 | JB75 | JB80 | JB85 |
Al2O3 ≥ % | 70 | 75 | 80 | 85 |
Fe2O3 ≤ % | 1.5 | 1.5 | 1.5 | 1.5 |
ZrO2 ≤ % | 6.0 | 7-8 | 8-10 | 8-10 |
Refractoriness ℃ | 1790 | 1790 | 1790 | 1790 |
Apparent porosity % | 22 | 22 | 22 | 22 |
Bulk density g/cm3 | 2.55 | 2.55 | 2.7 | 2.7 |
Cold crushing strength Mpa | 60 | 60 | 60 | 70 |
Refractoriness under load T2,℃ | 1470 | 1500 | 1550 | 1550 |
Reheating linear change 1500℃×2h,% | -0.1～-0.3 | -0.1～-0.3 | -0.1～-0.3 | -0.1～-0.3 |
Thermal shock resistance, times | 20 | 30 | 30 | 30 |
Remarks | -- | Contain andalusite | ||
3,Characteristics of Spalling Resistance High-alumina Brick:
Adding Zircon Sand to high aluminum bricks, which changes the mineral structure of the original product, and improves the suddenly-changing temperature resistance of the product by more than two times. At the same time, it also improves the working temperature and wear resistance of the product.
4,Application:
As a kiln furniture product, the product is widely used in heating furnace, annealing furnace, cement kiln and lime kiln.
5,Product knowledge:
At high temperature, because of the small difference of expansion coefficient between zirconium oxide and aluminium dioxide, tiny cracks are produced inside the product, which absorbs the fracture energy of the product and enhances the crack resistance of the product.At the same time, the high temperature structure of zirconia enhances the compactness and high temperature resistance of the product.
6,Product shipping knowledge:
Qingdao port of shipment, quotation validity 30 days, delivery time--order quantity≤100 tons, 30 days, payment terms---T/T,T/T+L/C.
7,Our commitment:
to win customers with high quality product quality and service, and to serve users with a rigorous attitude and integrity of work style.
8,Product packaging:
use safe, firm and moisture-proof packing suitable for land and sea transportation
9,Our service:
1)Provide free technical advice for users
2)Free for users to provide product application description
3)Free for users to provide product configuration design scheme
4)Free for users to provide sample,for user testing
10,Our advantages:
1)Professional,with more than 20 years of refractory production and operation, stronger technical exchanges and services
2)We have our own Refractory material product production cooperation factory
3)We have our own Graphite Electrode product production cooperation factory
11.Good feedback of product use effect,the products have been exported to Russia, Australia, Oman, the United States
12.The manufacturer is a professional manufacturer and can provide complete product index test reports or third-party test reports.
13.
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)
Our company pursues the idea that we should change if we want to make progress and we should constantly improve our products if we want to have better Porosity Alumina Erosion Resistance High Grade Refractory Brick. We have a professional international operation team. We sincerely welcome you to visit our company and negotiate mutual business!
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