Today is£º
Unshaped Refractory Material for Refined Ladle£¨Counter 1   Addtime£º2006-7-5 23:45:23£©
Brand name
Item
Mg-Al cast
High-aluming spinel material
Corundum spinel material
XLMJ-1
XLJJ-1
XGJJ-2
Chemical composition
Al2O3
70
70
90
MgO
10-12
14-16
5-6
Bulk density ¡Ýg/cm3
110¡æ*24h
2.65
2.7
2.95
1500¡æ*3h
2.60
2.65
2.85
Cold crushing strength ¡ÝMPa
110¡æ*24h
30
30
38
1450¡æ*3h
35
40
60
High temperature modulus of rupture ¡ÝMPa
110¡æ*24h
4
5
8
1450¡æ*3h
5
10
12
Liner change after fire %
110¡æ*24h
-0.1
-0.1
-0.1
1450¡æ*3h
+1.0
+0.5
+0.5
Refractoriness > ¡æ
1770
1770
1790
Construction mixture additional water quantity %
9-10
7-8
4-5
 
 

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