Zirconia aluminium oxide (ZA)

Zirconia Aluminium Oxide ZA40 is produced by fusing alumina and zirconia raw material in an electric arc furnace at high temperatures and then by quenching, crushing and sizing to the desired grain size. The materials are used for both coated and bonded abrasives.

 

 

Grain Usages and Types

Usage

For bonded abrasives

For coated abrasives

Type

ZA40-F

ZA40-P

 

 

Physical Characteristics

Item

Crystal color

Basic mineral

Absolute density

Knoop hardness

Melting point

ZA40

Grey

α- Al2O3,m.t- ZrO2

4.65g/cm3

1620kg/mm2

1880℃

 

 

Chemical Composition

Type

Chemical Composition(%,by weight)

Al2O3

ZrO2

SiO2

Fe2O3

Na2O

ZA40

<60

38.00-42.00

<0.20

<0.25

<0.10

 Note: Special requirement on chemical composition can be satisfied through discussion.

 

 

Guarnteed bulk density range of coarse grains(ZA40-F, g/cm3

Grit

Bulk density

Grit

Bulk density

F12

2.29±0.05

F54

2.01±0.05

F14

2.27±0.05

F60

1.98±0.05

F16

2.22±0.05

F80

1.96±0.05

F20

2.19±0.05

F100

1.95±0.05

F24

2.17±0.05

F120

1.95±0.05

F30

2.12±0.05

F150

1.95±0.05

F36

2.07±0.05

F180

1.95±0.05

F46

2.03±0.05

F220

1.95±0.05

 Note: Special requirement on bulk density can be satisfied through discussion.

 

 

Guarnteed bulk density range of coarse grains(ZA40-P, g/cm3

Grit

Bulk density

Grit

Bulk density

P20

2.18±0.07

P80

1.93±0.07

P24

2.13±0.07

P100

1.86±0.07

P30

2.13±0.07

P120

1.86±0.07

P36

2.13±0.07

P150

1.86±0.07

P40

2.03±0.07

P180

1.86±0.07

P50

2.03±0.07

P220

1.86±0.07

P60

1.97±0.07

 Note: Special requirement on bulk density can be satisfied through discussion.

 

 

 

Zirconia Aluminium Oxide ZA25 is also produced by fusing alumina and zirconia raw material in an electric arc furnace at high temperatures, but The materials are mainly used for high-pressure snagging wheels and large organic grinding wheels.

 

 

Grain Types and Marks

Type

General Products

Choicest Products

Mark

ZAF25

ZAS25

 

 

Physical Characteristics

Item

Crystal color

Basic mineral

Absolute density

Knoop hardness

Melting point

ZA25

Grey

α- Al2O3,m.t- ZrO2

4.35g/cm3

1780kg/mm2

1950℃

 

 

Chemical Composition

Type

Chemical composition(%,by weight)

Al2O3

ZrO2

SiO2

Fe2O3

Na2O

TiO2

ZA25

<76

23.00-26.00

<0.20

<0.25

<0.10

<0.25

 Note: Special requirement on chemical composition can be satisfied through discussion.

 

 

Guarnteed bulk density range of coarse grains(ZAF25, g/cm3

Grit

Bulk density

Grit

Bulk density

F8

2.19±0.10

F54

1.98±0.10

F10

2.29±0.10

F60

1.96±0.10

F12

2.25±0.10

F70

1.95±0.10

F14

2.19±0.10

F80

1.94±0.10

F16

2.15±0.10

F90

1.94±0.10

F20

2.12±0.12

F100

1.94±0.10

F22

2.11±0.14

F120

1.93±0.10

F24

2.10±0.12

F150

1.93±0.10

F30

2.09±0.12

F180

1.93±0.10

F36

2.03±0.10

F220

1.93±0.10

F46

2.01±0.10

 Note: Special requirement on bulk density can be satisfied through discussion.

 

 

Guarnteed bulk density range of coarse grains(ZAS25, g/cm3

Grit

Bulk density

Grit

Bulk density

F8

2.37±0.06

F16

2.37±0.06

F10

2.48±0.06

F20

2.34±0.06

F12

2.44±0.06

F24

2.31±0.06

F14

2.41±0.06

F30

2.29±0.06

 Note: Special requirement on bulk density can be satisfied through discussion.

 



Zirconia Aluminium Oxide (ZA)