By certification 
It is produced with refractory materials,special additives,new green binders,with the advantages of non-yellow fume to reduce air pollution,high strength,resistance to slag and iron wear,saving taphole loam,quick open,tight stop,labour saving,etc. Keeping depth stable,hot metal speed even slag and iron running out complete,keeping operation normal.The results of economic benefits and safety coefficient are very remarkable.No pollution,it can be used in large-middle-volume blast furnaces.
Items |
Chemical compositions
??%??
|
Compressive strength??Mpa??
|
Linear change rate??%??
|
Bulk density??g/cm3??
|
|||
|
Al2O3
|
SiC
|
FeSi3N4
|
(300?榴imes;24h)
|
1350?榴imes;3h) |
(1450?榴imes;3h)
|
(110?榴imes;24h) |
|
JC-HBN-1 |
≥38 |
≥18 |
≥6 |
≥5.0 |
≥10 |
±0.7 |
≥2.0 |
JC-HBN-2 |
≥30
|
≥10
|
≥6
|
≥5.0
|
≥8
|
±0.7
|
≥1.8
|
JC-HBN-3 |
≥25
|
≥8
|
≥4
|
≥4.5
|
≥7
|
±1.0
|
≥1.65
|
