Refractory Material--------α-Al2O3 micropowders The KaiFeng GaoDa New Type Refractory Material Factory are ISO9002 Certified.

α-Al2O3 micropowders Micropowders，producted by this factory,adopted grade are commercial alumina as its raw material.this product is the ideal raw material for producting all kinds of unsheped refractory material.

This factory can make all kinds of α-Al2O3 Micropowders with different properties according to the customer's requirment.
 Type A B C D
                                      Name

Characteristics

Activating α-Al2O3  micropowders
Activating α-Al2O3  micropowders
α-Al2O3  micropowders
α-Al2O3  micropowders
Al2O3  %
≥98.5
≥98.5
≥98.5
≥98.5
SiO2  %
≤0.15
≤0.15
≤0.10
≤0.10
Fe2O3 %
≤0.20
≤0.15
≤0.10
≤0.20
D50
≤0.7um
≤2um
≤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)
≥3.92
≥3.92
≥3.95
≥3.96
α-Al2O3  Phase
≥95%
≥95%
≥95%
≥96%
Main crystaline phase：α Phase ≥95%
Chemical analysis：
AL2O3   ≥98.5%
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

Refractory Material: α-Al2O3 micropowders Alumina Cement High Alumina Cement
  Corundum Micropowders White Corundum Bauxite
  SiC Kyanite Silica
  Andalusite Fused spinel Alumina bubble
  White fused corundum
Company：KaiFeng GaoDa New Type Refractory Material Factory
Address:West of XiaoWangTun ZhenBian Road KaiFeng City, HeNan Province,China
Postalcode:475003
URL: http://www.gdxxnh.com
E-mail:kfgd@gdxxnh.com
Fax:(86)-378-3922186 Tel:(86)-378-3922687 Mobile:13703786552

 
Greenwood Impex Inc.
18125 Camino Bello,#3 Rowland Heights,CA 91748
Fax:(1)-530-734-2238 Tel:(1)-626-810-3656
E-mail:USA@gdxxnh.com