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Home » Portfolio » ZIRCONIA FUSED ALUMINA

ZIRCONIA FUSED ALUMINA

How is Zirconia fused alumina is produced?

Zirconia fused alumina is produced by putting rich aluminum, zirconium materials and additives in electic furances, smelting with high temperature above 2000°C,cooling down with special technology, and compacting with Barmac plastic, which has the characteristics of tenacious texture, dense structure and high strength.

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PROPERTIES

Chemical Composition(%)

Items

Al2O3

ZrO2

TiO2

Fe2O3

SiO2

ZA25

68-72

24-30

≤1.5

≤0.5

≤1.0

ZA40

55-57

35-44

≤1.5

≤0.5

≤1.0

Physical Properties

Crystal Form

Monoclinic,tetragonal system

Reaction with acid and alkali

no

Reaction with carbon

Forming carbide since 1650C

Color

Grey

True Density

4.20g/cm3

Bulk Density

2.18g/cm3

Moh's hardness

9.0

Knoop hardness

1450-2000kg/cm2

Melting point

1900C

Maximum service temperature

1700C

Specific heat capacity(cal/g.C)

0.2205(50-500C)

Heat conductivity

0.2718 cal/cm2.sec.C

Linear expansivity(X10-6)

6.82(100-700C)

APPLICATION

Making zircon fused alumina brick and building materials.
Used for making bonded abrasives products,and process of grinding,sandblasting,surface treatment of metal products and other materials.
With good melt erosion resistance,Zirconia fused alumina has good grinding effect on steel,iron casting,heat resistant steel and other alloy materials.
Zirconia fused alumina can be made for heavy duty Zirconia fused alumina grinding wheel,snagging,cutting disc,Fiber disc,grinding rails,high speed abrasive belts etc.
Used for making coated abrasives products.
Used for making lapping paste,polishing wax,emery cloth,sandpaper etc.
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