CALCIUM
ALUMINATE FLUX
CALCIUM ALUMINATE FLUX |
SPECS |
|
TYPE A |
TYPE B |
TYPE C |
TYPE D |
TYPE E |
TYPE F |
CaO (%) |
46-51 |
47-52 |
53-57 |
25-30 |
30-35 |
45-50 |
Al2 O3 (%) |
38-43 |
41-45 |
30-38 |
53-55 |
55-58 |
30-35 |
SiO2 (%) max. |
3.8 |
3.8 |
3.8 |
4 |
4 |
3.8 |
TiO2 (%) max. |
2 |
2 |
2 |
2.5 |
2.5 |
2 |
MgO (%) max. |
2 |
2 |
2 |
2 |
2 |
5 - 10 |
Fe2O3 (%) max. |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
1.8 |
SIZE |
1-50mm OR as per the requirement of customers |
MELTING POINT |
1350℃-1400℃ |
BULK DENSITY |
2.85-3.0 g/cm3 |
APPLICATIONS OF PREMELT CALCIUM ALUMINATE
Calcium Aluminate is a completely pre-melted materials
manufactured to meet the specific requirement of steel
makers and metalluraists.
Ladle metallurgy and ladle furnaces are a critical quality
control step between the primary melting furnace and the
continuous caster. A key feature for successful ladle
metallurgy is slag control. Calcium Aluminate is
specifically designed to have the required chemical
composition and physical properties that make it easy to
store and handle.
Calcium Aluminate is hard, stable and nearly dust-free.
Calcium Aluminate melts readily at “steel-making”
temperatures. The slag has good sulphur retention and
performs effectively as a desulpheric slag.
Calcium Aluminate contains no fluorine compounds, thus
avoiding refractory attack and atmospheric pollution.
Calcium Aluminate is the best substitute for Calcium
Fluoride.
Calcium Aluminate is an excellent cover slag for the
prevention of gaseous pick-up from the atmosphere and is an
effective fluid sink that absorbs inclusions from steel.
Using method
The amount should be according to practical application
condition of different steels mills. We suggest that to add
5-12KG/Ton steel. Also it is can be added in twice: lay it
on the bottom of ladle before tapping, second time is adding
when in the ladle furnace. When the steel are stirring by
argon blowing, the synthetic slag shall be efficiently
improve the steel
Using feedback:
It is widely used in LF and VD. As the S content in steel
not less than 0.03%,it should be low to 0.015% of S content
after synthetic slag.
ADVANTAGE OF CALCIUM ALUMINATE
FOR STEEL-MAKING PROCESSES
1 Consistent chemistry
2 Superior refractory protection
3 Readily available
4 Sized and packaged to customer specification |