?Zirconia Fused Alumina of Ruishi Brand is produced by putting rich aluminum, zirconium materials and additives in electric arc furnaces, smelting with high temperature above 2000℃, cooling down with special technology, and compacting with Barmac plastic, which has the characteristics of tenacious texture, dense sturcture and high strength.

This product is not only a kind of senior abrasive, but can be also used as high-grade refractory. It takes the advantages of high strength, high toughness, high temperature resistance, which can manufacture heavy-duty wheel with high performance, and has achieved very good results in grinding steel, cast iron, heat-resistant steel, titanium alloys, nickel alloys, aluminum alloys and tungsten alloy. And it is widely used in the production of refractories in steel industry such as continuous casting and rolling, nozzle, flow channel, and glass kiln as well.

Physical Properties?????
Crystal form: monoclinic / tetragonal crystal system?
Crystal size : < 20u??
PH: 7 (typical)??
Knoop: 1450-1800kg/mm2??
Moh's hardness: ≥ 9.0
Density: ≥4.20g/cm3 (ZA25), ≥4.40g/cm3 (ZA40)?
Specific heat: (Cal/g.°C) 0.2205 (50-500 °C)
Thermal conductivity: 0.2718 (Cal/cm2.sec.°C)
Linear expansion coefficient: 6.82 (100-700 °)??
Softening temperature: 1,850 ° C??
Packing density: ≥2.3g/cm2
Grain No.12 particle density: ≥4.2g/cm2
Single broken load: ≥40kg

Zirconia Fused Alumina:

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