Gunning refractory has the advantages of hardening patch fast, good liquidity pour into the furnace, 30 ~ 35 minutes be hardened
Technics
Gunning refractory combined with the actual situation of converter, and the successful development with scientific research units of large converter rapid hardening repair materials with hardening patch fast, good fluidity poured into the furnace, 30 ~ 35 minutes be hardened, compared to the traditional tar dolomite each fettling may be shortened by up to 30 ~ 40 minutes, furnace service life can reach 5 to 7 heats.
Performance
|
Item
|
Brand
|
Chemical composition%
|
Hardening time
min
|
CCS
MPa
|
BD
g/cm3
|
Bond strength
MPa
|
||
|
MgO
|
C
|
CaO
|
1000
|
1000 /0.5h
|
1000 /0.5h
|
1000 /0.5h
|
||
|
Magnesia-carbon gunning refractory
|
KJP-80
|
≥82
|
12
|
≤2
|
≤30
|
≥20.0
|
2.40
|
≥3.0
|
|
Calcium magnesium carbon gunning refractory
|
KJP-70
|
≥70
|
12
|
≤14
|
≤30
|
≥15.0
|
2.38
|
≥3.0
|