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The Influence Of Brown Fused Alumina Hydrophilicity After Calcined
- Jul 11, 2018 -

The Influence of Brown Fused Alumina hydrophilicity After Calcined

After the brown fused alumina abrasive was fired at 800 ° C - 1350 ° C for 2 - 4 hours, the hydrophilic properties of the brown fused alumina abrasive increased by 3.5 times. This is mainly due to the removal of impurities in brown fused alumina abrasive, such as volatiles on the surface of the abrasive, the burning of the low melting point material, and the increase in the capillary phenomenon on the surface of the abrasive. The brown fused alumina abrasive bulk density is correspondingly reduced, the hydrophilicity is improved, and the durability can be improved by 30%.

Grain

Time(mins)

hydrophilic (mm)

Before Calcined

After Calcined

150

3

5

10

20

30

49

60

80

103

125

116

139

190

250

300

60

3

5

10

20

30

45

47

50

52

50

120

128

157

160

167