Products of alumina hollow ball
The lining, back socks, furnace tube, protective cover of high temperature furnace which can be directly in contact with the flame, especially suitable for all kinds of high temperature furnaces with hydrogen and reductive atmosphere; Lining of tunnel kiln, push plate kiln, shuttle kiln, crucible furnace and various electric furnaces; Industries like metallurgy, light industry, chemical industry, ceramics, glass, electronics and others.
Classification：
Affiliated Products：
AKGZ-85 AKGZ-90 AKGZ-99
Areas Of Use：
Parts mainly used with alumina h
Service Description：
In-stock delivery guaranteed within 7 days Custom delivery within 30 days Tax included, shipping included, packaging included, moulds included (contact us for more requirements)
Product Description
Alumina hollow ball brick physical and chemical indexes：
| Products Indicators | Aluminum oxide hollow ball brick AKGZ-85 | Aluminum oxide hollow ball brick AKGZ-90 | Aluminum oxide hollow ball brick AKGZ-99 |
| Al₂O₃ (%) | ≥85 | ≥90 | ≥99 |
| Fe2O3(%) | ≤0.2 | ≤0.2 | ≤0.2 |
| Bulk density (g/cm3) | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 |
| Normal temperature compressive strength(Mpa) | ≥12 | ≥10 | ≥9 |
| 0.2Mpa load softening temperature 0.6%(℃) | ≥1650 | ≥1700 | ≥1700 |
| Reburn line change % (1600° C x 3h) | ±0.3 | ±0.3 | ±0.3 |
| Coefficient of thermal expansion x 10-6 (room temperature - 1300°C) | ~7.8 | ~0.8 | ~8.6 |
| Thermal conductivity w/(m.k) | ≤0.8 | ≤1.3 | ≤1.5 |
Alumina hollow ball brick main use parts：
＞＞The lining of high-temperature furnaces that can be in direct contact with the flame, back socks, furnace tubes, protective covers, etc., especially suitable for high-temperature furnaces with hydrogen and various types of reducing atmospheres.
＞＞Lining of tunnel kilns, pusher kilns, shuttle kilns, crucible furnaces and various electric furnaces.
＞＞ Metallurgy, light industry, chemical industry, ceramics, glass, electronics and other industries.
Performance Description：
Alumina hollow sphere products are a kind of light refractory material with high temperature resistance and excellent energy saving, which are very stable in use under various gas atmospheres, especially suitable for application on high temperature kilns at 1800 degrees.
Its high aluminum content, low iron content and low bulk density are used in the working layer of high temperature area of shuttle kiln and tunnel kiln, and can also be used as insulation layer in high temperature area.
Performance description:
Products of alumina hollow ball which are a kind of light refractory materials with high temperature resistance and excellent energy saving performance, can be used in a variety of gas atmosphere and stay stable, and especially high temperature kiln of 1800 degrees should be applied;
With high aluminum content, low iron content, small volume density, they can be used in working layer in high temperature area of shuttle kiln and tunnel kiln, and they can also be used in high temperature area as insulation layer.
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Henan YUANDONGLI Refractory Technology Co., Ltd.
Service Hotline：+86-371-8580-0003
Address: No. 9, Rengou Group, Magou Village, Laiji Town, Xinmi City, Zhengzhou City, Henan Province, China