Granulation requested by the customer
This company is able to produce and deliver calcium aluminate slag with the analyzes desired by the customer and in the requested granulations, even in powder form.
- +98-913-111-47-28
Sepahan Refractory Coating Company was established in 2000 with the aim of producing synthetic slag (calcium aluminate)...
Calcium aluminate is a synthetic slag, which, along with desulfurization, is capable of absorbing the products of deoxygenation and protecting steel against re-oxidation. Also, by speeding up the formation of slag, it plays an essential role in reducing the time of secondary metallurgy operations and increases productivity.
Optimizing secondary metallurgy and increasing the quality of steel due to:
1) Desulfurization
2) Intensification of deoxygenation and calcium treatment
3) Absorption of products and impurities resulting from deoxygenation
4) Prevention of reabsorption of nitrogen and air oxygen
5) Absorption of stuck or Penetrated slag in the refractory layer
6) creating the possibility of reheating in the ladle furnace
1) Speeding up the liquefaction and uniformity of slag
2) Speeding up the dissolution and activation of slag builders such as lime
3) Speeding up the processing of active slag due to the low melting point
4) Reducing the time of secondary metallurgy operations
5) The possibility of using sulfur raw materials due to the absorption of sulfur
6) reducing the corrosion of the furnace body
The use of the best domestic aluminum and limestone raw materials and compliance with the production standards have made the products of the Nasozpooshesh sepahan company to be of high quality.
This company is able to produce and deliver calcium aluminate slag with the analyzes desired by the customer and in the requested granulations, even in powder form.
(premelted calcium aluminate slag)
The effect of deoxygenated briquettes on the molten surface:
Liquefaction due to the presence of calcium aluminate
Preventing steel oxidation and high deoxygenation properties
Absorption of impurities caused by deoxygenation
Creating suitable conditions for desulfurization
Today, the production of clean steel is one of the goals of modern steel factories, and secondary metallurgy processes play a key role. Therefore, in the operation inside the laddle, which is carried out to control slag, it is crucial to create a synthetic slag that can absorb the products of deoxygenation and protect the steel from re-oxidation, and if necessary, desulfurize it. if so, then the goal of producing clean steel can be achieved. Nasozpooshesh Sepahan was established in 2000 with the aim of producing synthetic slag (calcium aluminate) and as the first domestic producer, it is one of the main suppliers of this product for major steel mills in the country.
The effect of calcium aluminate on the molten steel :
The need for feldspar (CAF2) is eliminated, and considering that feldspar is extremely corrosive and toxic, with this method, the life of the laddle is increased.
Due to low melting point, it is quickly melted in the crucible and the molten steel is deoxygenated, desulfurized, and gets free of impurities and the slag gets created.
non-metallic elements get trapped inside the molten slag and so the micrographic properties get improved.
It enables faster mixing of metal and slag. Therefore, it increases the speed of desulfurization and reduces the process time in the LF.
A slag coating is quickly formed, which consumes less energy and electrode to melt than charging aluminum and lime separately.
It prevents re-oxidation of iron and reduces the possibility of carbon pollution, due to formation of the synthetic slag on top of laddle surface.