First /second/third grade brown fused alumina F120
Description:
♦ Medium Temperature calcined brown fused alumina/low heating brown fused alumina is the
processing with brown fused alumina above in high temperature heating(1050°C for 4 hours).
♦ The inner pressure of brown fused alumina, which is caused during processing, is complete removed.
♦ The single crystal of brown fused alumina is increased and polycrystal of brown fused alumina is
decreased.
♦ Both TiO and TiO3 are changed to TiO2 during calcining, thus, the sharpness and color of products is
improved, the magnetic material is reduced.
♦ Through calcinations, the foreign substances are vaporized or separated out of the abrasive, so the
surface of abrasive is more pure and rough, performance and strength are raised greatly as the abrasive crackles that engendered when breaking can be closed after calcinations.
The advantages and technical as follows:
Model: brown fused alumina BFA F120
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Chemical compositions
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Physical properties
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Items
|
Value of specification (%)
|
items
|
Property
|
Al2O3
|
99.54
|
Color
|
White
|
SiO2
|
1.22
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Bulk density
|
1.75-1.95g/cm3
|
|
|
Grain density
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3.90g/cm3min
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Ti2O3
|
0.25
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Morse hardness
|
9
|
Fe2O3
|
0.26max
|
Content of magnetic substance
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0.0023%max
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E-mail:kitty"at"zzhaixu.cn