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White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
¤@¡A¥Dnª«²z¯S©Ê Main Physical Properties
²ö¤óµw«× MOHS HARDNESS
9.0
°ï¿n±K«× BULK DENSITY
1.75-1.95g/cm3
¯u±K«× REAL DENSITY
3.95g/cm3
º²ÂI MELTING POINT
2250¢J
°ª¨Ï¥Î·Å«× MAXIMUM SERVICE TEMPERATURE
1900¢J
¤G¡A¥Î³~ Application
1, ©Tµ²¿i¨ã©MÒ\ÂС]Ò\ªþ¿i¨ã¡^¿i¨ã Bonded abrasives and Coated abrasives
2¡A¦aªO/ùÙÅé¼hÀ£§÷®Æ Floor / Wall Laminates
3¡A¼ö¼QÒ\/µ¥Â÷¤l¼QÒ\Thermal Spraying (Plasma Spraying)
4¡A©ß¥ú©M·L¤À¤l¼Q¬â Lapping & Micro-blasting applications
5¡Aªí±³B²z Surface preparation and finishing
6¡A@¤õ§÷®Æ¡A³³²¡Super Refractories, Ceramics and Tiles
7¡A¨î°ÊŨ± Brake linings
¥Õè¥É White Corundum
1,¥Î©ó@¤õ§÷®Æ¡A·oÂø®Æ¡AÄl®Æ Used for refractory,castable
ÄÝ©Ê
Properties
³W®æType
0-1 1-3 3-5mm
0-100 0-200 0-320
«OÃÒÈ
Guarantee Value
¨å«¬È
Typical Value
«OÃÒÈ
Guarantee Value
¨å«¬È
Typical Value
¤Æ¾Ç¦¨¤À
Chemical
Composition
Al2O3
99
99.5
98.5
99.0
SiO2
0.4
0.06
0.30
0.08
Fe2O3
0.2
0.04
0.20
0.10
Na2O
0.4
0.30
0.40
0.35
2,¥Î©ó¿i®Æ¡A¼Q¬â¡A¬ã¿i¡A©ß¥úUsed for abrasives,blasting,grinding
ÄÝ©Ê properties
³W®æType
²É«×¬âGrains
8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#
«OÃÒÈ Guarantee Value
¨å«¬ÈTypical Value
¤Æ¾Ç¦¨¤À
Chemical
Composition
Al2O3
99
99.50
SiO2
0.2
0.04
Fe2O3
0.2
0.04
Na2O
0.30
0.23
3¡A¥Î©ó¿i®Æ¡A¬ã¿i¡A©ß¥úµ¥ Used for abrasives ,lapping,Polishing
ÄÝ©Ê properties
³W®æ Type
·L¯» Micropowder
¡§W¡¨¼Ð
W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
¡§FEPA¡¨¼Ð
F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
¡§JIS¡¨¼Ð
240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000#
«OÃÒÈGuarantee Value
¨å«¬ÈTypical Value
¤Æ¾Ç¦¨¤À
Chemical
Composition
Al2O3
99
99.20
SiO2
0.4
0.08
Fe2O3
0.2
0.06
Na2O
0.4
0.35