Pre-Melted
Calcium Aluminate Flux
IRC-PCAF

  • In the ladle refining of steel, a surface slag covering is required to provide specific chemical and physical functions. The slag composition is designed for the different grades of steel being produced with the majority requiring desulfurization. Regardless of the chemical refining requirements of the slag, it is advantageous for the ladle slag to become as fluid as possible immediately upon tapping the metal from the furnace into the ladle.
  • Synthetic Calcium Aluminate Fluxes have become part of modern steel works practice especially where clean steel production is required.
  • This slag addition process contained the necessary desulfurization ingredients of high temperature, high basicity and low oxygen potential with vigorous stirring into the deoxidized steel. Although greatly successful in desulfurizing, the cost of the process is prohibitive.
  • Calcium Aluminate Fluxes combine the advantage of creating quickly a homogeneous and sufficient liquid slag with the capacity to absorb a large variety of non-metallic impurities from the steel bath.
  • IRC-PCAF is produced by direct melting of raw materials and has fastest reaction and melting time in comparison with sintered or mechanical mixes of lime and alumina.
  • Chemical composition and grain sizes can be adjusted according to customers requirement
  • IRC-PCAF is available in 1500 kg Super sacks.
  • IRC-PCAF is chemically and mechanically stable so it can be stored for long term and will not absorb air moisture or react with it.
Chemical Analysis

Types:

I

II

III

IV

Al2O3

%

39-43

39-43

39-43

40-45

SiO2

%

<5.5

<6

<11

<7

CaO

%

44-48

49-53

44-48

35-40

Fe2O3 + FeO

%

< 2.5

< 2.5

< 2.5

<2.5

TiO2

%

< 3

< 3

< 3

<3

MgO

%

5-7

<1

<1

>10

Physical Properties

Description

Unit

Quantity

Bulk density:

g/cm3

1.5-1.6

Specific gravity:

g/cm3

2.9

Melting point: 

c

1320-1380

Principal mineralogical phase: 

C12A7