| Refractoriness (℃): | 1580< Refractoriness< 1770 |
|---|---|
| Feature: | Long Time Materials, Instant Materials |
| Type: | Heat-Resistant Material |
| Shape: | Brick |
| Material: | Alumina Block |
| Al2O3: | 99% |
| Samples: |
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| Customization: |
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Alumina hollow sphere is a new type of high-temperature heat insulating material, which is smelted and blown with industrial alumina in an electric furnace, and its crystal form is a-Al2O3 microcrystal. With alumina hollow spheres as the main body, it can be made into products of various shapes. The maximum operating temperature is 1800 ° C. The mechanical strength of the products is high, which is several times that of ordinary lightweight products, and the bulk density is only one-half of the corundum products. It has been widely used in high temperature and ultra-high temperature furnaces such as petrochemical industrial gasifiers, carbon black industrial reaction furnaces, and metallurgical industrial induction furnaces, and has achieved very satisfactory energy-saving effects.
| Material | Alumina Hollow Ball Brick | ||||
| CR-ABB-85 | CR-ABB-90 | CR-ABB-99 | |||
| Property | |||||
| Chemical composition(%) | Al2O3 | ≥ | 85 | 90 | 99 |
| Fe2O3 | ≤ | 0.8 | 0.5 | 0.2 | |
| Density(g/cm3) | 1.4~1.8 | 1.3~1.8 | 1.5~2.0 | ||
| Compressive strength at ambient temperature (Mpa) | ≥ | 8.0 | 10.0 | 10.0 | |
| Permanent linear change on heating(1600ºCx3h) (%) | ±0.3 | ±0.3 | ±0.3 | ||
|
Thermal Conductivity(W/m.k) Average temperature(350±25ºC) |
≤ | 0.9 | 1.0 | 1.0 | |
Jiangsu Cera Thermal Technology Co., Ltd. is formerly known as Nanjing Cera Material Technology Co., Ltd.The main business of our company includes refractory materials production, furnace lining design and construction of high-temperature thermal engineering, furnaces equipment, research and development and sales of refractory material. Through years of cooperation with the British Morgan Thermal Ceramics,we have accumulated rich experience in a good deal of engineering projects. We can provide our customers with all kinds of high quality products, professional and customized products and engineering services according to the actual working condition and requirements of each customer, in order to meet customers' increasing demand of energy-saving.
Our tenet is: quality and credibility is fundamental, technology and service is the life.
We obtained the quality system certification GB/T 19001-2008/ISO 9001:2008.
High-tech enterprises are under declare.
Why Choose Us ?
1. Thermal calculation, material selection support.
With advanced calculation software, it can calculate the heat storage loss and heat loss of
the kiln according to the temperature in the furnace, the working environment of the kiln,
and the economic selection of materials.
2. Process design.
Professional lining design team.
3. On-site guidance.
Have a rich team of on-site construction experience to provide customers with excellent
construction site guidance.
4. Installation Supervision.
Possess professional construction supervision ability, can provide professional construction
supervision service for furnace lining installation and constructio.
5. Special application consultation of thermal insulation materials.
We can provide technical support for customers and solve the difficulty of applying special
thermal insulation materials.
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