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  • ZIRCONIA FUSED ALUMINA

ZIRCONIA FUSED ALUMINA

Catalog: Abrasive | 2023-10-09

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.

Product Details

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.