Vibro-Cast

 

 

Vibro-Cast Crucible

Crucibles are produced by vibration casting (Vibro-cast) when the required size or shape is un economic or impractical by the isopressing production method.

Capital Refractories is able to offer a range of vibration cast crucibles, including Teapot ladles:

Benefits

  • Melt capacities in excess of 100 kg.
  • Complex shapes, e.g. internal pouring siphon.

If the size you require is not listed please contact us and we will endeavour to fulfil your requirements.

The normal crucible mixes below can all be cast into different pre-cast shapes.

Properties

Analysis / Wt. %

Quality
Analysis / Wt. %
Al2O3
SiO2
MgO
CaO
Fe2O3
Cr2O3
Na2O + K2O
Alumina AL97C
96.6
2.5
< 0.1
0.1
< 0.1
-
0.1
Alumina AL96C
97.0
2.5
< 0.1
0.1
< 0.1
-
0.2
Alumina AL92C
92.1
7.2
< 0.1
0.1
< 0.1
-
0.1
Chrome-alumina CA93C
93.0
2.8
< 0.1
3.6
< 0.1
3.6
0.2
Sillimanite SL70C
70.6
27.1
< 0.1
0.1
0.7
-
0.2
Sillimanite SL66C
67.4
30.1
0.1
0.1
0.8
-
0.8
Sillimanite SL63C
63.8
34.2
0.1
0.2
0.5
-
1.1
Sillimanite SL57C
56.9
37.4
0.1
0.2
0.9
-
1.2
Sillimanite SL56C
56.5
41.1
0.1
0.1
0.7
-
1.4
Sillimanite SL47C
47.6
49.1
0.1
0.1
0.8
-
1.6

 

Properties

Physical Properties

Quality

Physical Properties

Bulk Density /  g cm-3
Apparent Porosity
/ %
Coeff. Thermal Expansion / MK-1
Thermal Conductivity
/  W m-1 K-1
Alumina AL97C
2.95
23.8
8.0
4.2
Alumina AL96C
3.05
20.0
8.0
4.4
Alumina AL92C
2.84
21.5
7.8
2.3
Chrome-alumina CA93C
3.05
23.0
8.2
3.4
Sillimanite SL70C
3.05
23.0
8.2
3.4
Sillimanite SL66C
2.51
18.3
5.2
1.9
Sillimanite SL63C
2.32
22.0
5.0
1.4
Sillimanite SL57C
2.27
20.6
4.8
1.2
Sillimanite SL56C
2.32
20.0
4.8
1.2
Sillimanite SL47C
2.12
21.5
4.4
1.1