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CALCINED ALUMINA
CALCINED ALUMINA

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CALCINED ALUMINA is generally used in the manufacture of high-grade ceramic shapes, refractories and abrasives.

CALCINED ALUMINA

 

                     Type

Itmes

A0546

A0543

A0532

A1023

A1012

A1002

Chemicals

(%)

Al2O3 Min.

99.80

99.80

99.80

99.60

99.60

99.20

Na2O Max.

0.04

0.04

0.05

0.10

0.10

0.30

SiO2 Max.

0.05

0.05

0.05

0.05

0.05

0.06

Fe2O3 Max.

0.03

0.03

0.03

0.04

0.04

0.05

L.O.I. Max.

0.04

0.04

0.04

0.05

0.05

0.06

Specific Gravity Min.

3.97

3.97

3.96

3.94

3.92

3.90

Alpha-Al2O3  Min.

97

97

96

95

93

90

Crystal size (micron)   Min.

4-6

3-4

2-3

2-3

1-2

1-2

Grits size  (micron)

D50 value be from 45 micron to 1 micron.

application

Engineering science

ceramic

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Electronic ceramic

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Insulation ceramic

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Refractory ceramic

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Abrasive ceramic

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Applicablity

For molding

Hot-die-casting

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Static press

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Dry press

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Hydro-flowing

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Extrusion

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