nozzle filling sand

Data:2019-04-10 16:12 【Back】


The chromite based nozzle filling sand we are supplying is made from high quality chrome sand imported from South Africa, mixed with lubricant, sintering-aids, reductant, etc. As a stuffing material at the tap hole of ladle bottom, it should be able to sinter at a certain range of temperature. At the same time, under the condition of high temperature and long time refining process, the sintered thickness for the surface contact with melt steel cannot be too thick, so that automatic tapping will be ensured.

The chromite based nozzle filling sand we are supplying has the excellent properties, such as very good dispersive fluidity, high refractoriness, never over sintered and blocking, working temperature ≥1750℃, high automatic pouring rate. It does not react with liquid steel and its alloys. Its quality keeps being stable under long time storage.

It is not only suitable for the steel making process with or without refining in ladle, but is also workable for long time refining process in ladle such as LF, VD and RH.
 

MODLE

CHEMICAL SPECIFICATIONTYPICAL VALUE

MgO

Al2O3

Fe2O3

SiO2

Cr2O3

SW-50

4.75%

7.13%

14.93%

46.53%

22.39%

SW-60

5.70%

8.56%

17.91%

37.39%

26.87%

SW-70

6.64%

9.99%

20.90%

28.25%

31.35%

SW-80

7.59%

11.41%

23.88%

19.11%

35.83%

 

or as per customers requirement

 

 

MODEL

SIZE DISTRIBUTIONTYPICAL VALUE 

Above 20 mesh

20-40 mesh

40-60 mesh

60-70 mesh

70-150 mesh

SW-50

6.35

57.7

28.09

6.23

1.65

SW-60

5.26

51.71

33.58

7.47

1.97

SW-70

4.17

45.73

39.08

8.72

2.03

SW-80

3.08

39.75

44.58

9.96

2.63

 

 or as per customers requirement

 

 

PACKING

25kgbag or 1mt bag, or as per customers requirement

 




 

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