Factory:  Corner Steyr & Alfa Sts 
Aureus Industrial sites 
RANDFONTEIN  
Email: info@keramicalia.co.za
Website: www.keramicalia.co.za
Cell: Dave  082  808 4757
Email: keraccounts@iafrica.co.za
Accounts: Myrtle Wakeford
Tel: (011) 764 2139
Tel: (011) 412 3261
P O  Box 2288
Wilro Park,1731

Description:

A spinel forming alumina induction furnace lining.

The aggregate is fused chrome alumina and the fines are high purity sintred and reactive aluminas and 12% dead burned seawater magnesia.

There is no frit addition.

Sintering is by spinel forming reaction which gives expansion and a tight sealed hot face, with powder behind it to prevent crack propagation.

Maximum Services temperature : 1750°C

 Density:

Hand rammed density is 2,9g/cm³

 Chemical Analysis:

 

Total

Aggragate

Alumina Fines

Al2O3

80%

87%

99,7%

Fe2O3

1,2%

2%

0,02%

Cr2O3

6%

10%

 

SiO2

0,2%

0,2%

0,04%

CaO

1,4%

2%

0,04%

Na2O

0,06%

 

 

K2O

0,6%

1%

 

P2O5

0

 

 

 Sintering:            12 hours on low power, then 2 hours at 1680 - 1700°C

 Packaging:          25kg plastic bag

 Shelife:               6 months