KaiFeng GaoDa New Type Refractory Material Factory
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(86)-189 3782 2293
Contact:A Lei
TEL:(86)-18937822293
Fax:(86)-371-2392 2186
Email:suwolf@faxmail.com
Add:West of XiaoWangTun ZhenBian Road KaiFeng City,HeNanProvince,China
Zip:475000
 
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α-Al<SUB>2</SUB>O<SUB>3</SUB> micropowders
α-Al2O3 micropowders

α-AL2O3  Micropowdersproducted by this factory,adopted grade are commercial alumina as its raw material.this

 product is the ideal raw material for producting all kinds of unshaped refractory material.

This factory can make all kinds of α-AL2O3 Micropowders with different properties according to the customer’s

 requirment.

Type

A

A-2 

B

C

Name

Characteristics

Activating α-AL2O3

micropowders

Activating α-AL2O3

micropowders

α-AL2O3

micropowders

α-AL2O3

micropowders

AL2O3%

99.0

99.0

99.0

99.0

SiO2 %

0.2

0.2

0.2

0.2

Fe2O3%

0.2

0.2

0.2

0.2

D50

0.7~1.5um

1.5~2.5um

1.5~5um

10um

Fineness %

1um

60

30%

20%

10%

2um

90

50%

30%

20%

5um

100%

90%

60%

40%

10um

-

100%

95%

70%

Ture specific

gravity

(g/cm3)

3.93

3.93

3.93

3.93

α-AL2O3Phase

95%

95%

95%

96%

Main crystaline phaseα Phase 95%

Chemical analysis

AL2O 99.0%

SiO2 0.2%

Fe2O3  0.2%

Fineness D50 0.7um

Ture specific gravity:≥3.92g/cm3

α-AL2O3 Micropowders Fineness Test upshot

 

sam dens: 3.95(g/cc) Liq dens: 1(g/cc)

Liq visc:0.0096(ccp) sed.height:0.5(cm)

D50=0.54 um Dstoks=0.85 um D03=0.17 um

D97=3.03 um D10=0.23 um D90=1.88um

D25=0.33 um D75=0.97 um S.area=0 cm2/g

 
D(um)
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
2.00
3.00
4.00
5.00
6.00
7.00
c(%)
0.25
4.39
21.37
34.04
47.10
54.52
61.07
66.80
71.78
76.09
91.89
96.95
98.78
99.49
99.78
100.00

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