Thermal Storage Alumina Ball
Product Description
■ This product take super fine alumina as the chief material and formed by isostatic pressure or rolling method, fired by most advanced “Non-different Temperature Techonology”. It is widely used as the thermal storage packing ball.
■ Characteristics: high crushing strength, high corrosion resistance, high thermal shock resistance, good thermal stablility and efficiency, big density and thermal conductivity, cost effective and long service time. Thermal storage ceramic ball is widely used for the furnace of metallurgical,iron and steel industry, being applicable to heat accumlator of air separating equipment and gas heater of furnace in the steel factory.
■Properties of Thermal Storage Alumina Ball
|
AL2O3
|
Density g/cm3
|
Rockwell
hardness HRA
|
Compressive strength Mpa
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Resistance to fire℃
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Thermal conductivity
|
Porosity %
|
Refiring shrinkage
|
|
60-70
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≥2.8
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≥75
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≥1700
|
1650
|
≤0.4
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≤0.6
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≤0.1
|
|
80-85
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≥3.2
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≥80
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≥1800
|
1700
|
|
90-92
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≥3.5
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≥85
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≥1900
|
1800
|
|
95-99
|
≥3.7
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≥88
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≥2000
|
1850
|
Size:Dia3,Dia6, Dia8,Dia10,Dia13,Dia16,Dia20,Dia25,Dia30,Dia34,Dia50,Dia60,Dia70mm
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