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ceramic balls for ball mill

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(1) Application


Alumina grinding media ball is mainly used in ceramic, glaze, paint, zirconia silicate, aluminum oxide, quartz, silicon carbide, talc, lime carbonate, kaolin, titanium and other materials grinding,  and mechanical equipment accessories.


(2) Properties


High density, high hardness, low wear loss, regular shape, impact resistance, corrosion resistance, etc.


(3) Chemical Property



92% Alumina Grinding Ball

Al2O3(%)

92±1

Fe2O3(%)

<0.25

SiO2(%)

≤5

Mohs hardness

9

Water absorption

<0.01

Bulk density(g/cm3)

>3.60

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>1050N

Size

Ø0.5-60mm

Sphericity

>95%



75% Alumina Grinding Ball

Al2O3(%)

>75

Fe2O3(%)

<0.4

SiO2(%)

≤20

Mohs hardness

8

Water absorption

<0.01

Bulk density(g/cm3)

>3.15

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>800N

Size

Ø0.5-13mm

Sphericity

>95%



60% Alumina Grinding Ball

Al2O3(%)

≥60

Fe2O3(%)

<0.6

SiO2(%)

≤31

Mohs hardness

7

Water absorption

<0.01

Bulk density(g/cm3)

>2.8

Wear loss(g/kgh)

<1.6

Crushing strength(3mm)

>600N

Size

Ø0.5-13mm

Sphericity

>95%



99% Alumina Grinding Ball

Al2O3(%)

≥99

Others(%)

<0.5

Mohs hardness

7

Water absorption

<0.01

Bulk density(g/cm3)

>3.90

Wear loss(g/kgh)

<1.6

Crushing strength(30mm)

>55000N

Size

Ø0.5-13mm

Sphericity

>95%


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