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​​​​​​    ZHENGZHOU YUFA ABRASIVES ​​​GROUP CO., LTD.​
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ALUMINA FOR HEAT CONDUCTION

Model 

No.

Chemical Composition (%)

True

Density

Apparent 

Density

Grain 

Size 

Original 

Crystal 

Oil 

Absorption 

Rate

+325

Residual 

Boron

Features

Al2O3

≥%

SiO2

≤%

Fe2O3≤%

Na2O

≤%

LOI

≤%

 g/cm3≥ g/cm3≥D50(μm)D50(μm)ml＜%＜%
FA399.50.10.030.080.103.960.85~2.82.1-2.7
＜170.5
High temperature calcination, deep grinding, reasonable particle size distribution, good flowability, good thermoconductivity.
FA499.50.050.030.080.103.960.85~43.6-4.513-150.50.02High temperture clacination, deep grinding, reasonable grain size & crystal shape distribution, good flowability, good thermoconductivity
FA599.50.050.030.100.103.960.85~65.5-6≤140.50.1High temperature calcination, deep grinding,  larger crystal paticle, reasonable paricle distribution, high apparent density, good flowability, good themoconductivity
FA1099.5
0.050.03
0.10
0.10
 3.96
0.85
~108-10
10.1Large crystal particle, reasonable particle size distribution, high apparent density, excellent flowability, excellent thermoconductivity
FA1599.50.05
0.030.100.103.960.85~1310-13
10.1Special production process, large crystal particle,  good flowability, good thermoconductivity
Conversion Rate ≥ 95%

SPECIFICATIONS


THERMAL CONDUCTIVE MATERIALS


CERAMIC COATINGS



GOOD FLOWABILITY


GOOD THERMOCONDUCTIVITY


GOOD QUALITY STABILITY

α - ALUMINA


1650 ℃ HIGH TEMPERATURE CALCINATION


FA SERIES