KaiFeng GaoDa New Type Refractory Material Factory
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(86)-189 3782 2293
Contact:A Lei
TEL:(86)-18937822293
Fax:(86)-371-2392 2186
Email:suwolf@faxmail.com
Add:West of XiaoWangTun ZhenBian Road KaiFeng City,HeNanProvince,China
Zip:475000
 
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Refractory for secondary steel making

Product Description:

 

Monolithic in jectiong lance for argon blowing:

Monolithic in jectiong lance is made from casting refractory material around the steel bar,it has the nature of high strength,fine erosion-resistance.our factory have built advanced equipment to make all kinds of injectiong lances for smelting steel's usage of desulphoriztion.Technical standars will be discussed between the maker and the customer.
Quality standard of monolithic injectiong lance:
Quality
High-Alumina
Crundum
Crundum
Name
Monolithic lance for hot metal pretreatment
Lance for TN ladle powder injection
Monolithic lance for secondary steelmaking in LHF,etc.
Brand
GD-A60
GD-A93
GD-A92
Chemical analysis(%) Al2O3
60
93
92
CaO
≤1.5
2.0
-
SiO2
-
-
1.0
Refractoriness° C
1790
>1790
>1790
Cold crushing strength(MPa) 110° C×24h
25
40
40
1500° C×3h
40
50
60
Modulus of rupture(MPa) 110° C×24h
4.0
8.0
6.0
1500° C×3h
10.0
10.0
12.0
Liner Change%(1500° C×3h)
±0.5
±1.0
±0.6
Bulk Density(g/cm3)
2.5
3.0
3.0
Max service temp° C
1500
1750
1750
Main applications
Desulphoriztion in torpedo ladle car
Desulphoriztion for ladle powder injection
Temperature adjustment in ladle furnace and ladle by argon blowing


 

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