header2

1. FOUNDRIES – CAST IRON TREATMENT

IRON FOUNDRY OVERVIEW

With the increase in the demand of the automotive and machine industry, the foundries have been serving a highly-demanding market concerning the mechanical properties of cast iron. Stronger, harder products are required to extend the life of components.


TECNOSULFUR SOLUTION

With the purpose of serving primary refining processes of cast iron, TECNOSULFUR offers a full line of desulfurization agents to be applied in melting processes performed in cupola furnaces. They are manufactured on a customized basis to operate in accordance with the requirements of each process. The products are made of calcium oxide, calcium carbide, calcium fluoride and others.

In addition to its recognized quality, TECNOSULFUR provides its clients with enhanced products which comprehend a precise technical diagnosis, follow-up of the application by specialized technicians and after-sale services, what ensures customer satisfaction.


TECNOSULFUR ADVANTAGES

The TECNOSULFUR line of desulfurization agents has as main purpose to remove sulfur from the metal, resulting in the manufacture of fine steels.

They are applied through the Gasal system, which consists in the addition of the desulfurization agent in coinciding streams of metal/slags in a syphon ladle with stirring by inert gas. We mention the following main advantages: lower specific consumption, high rates of desulfurization, high treatment speed and low cost per treated ton.


OUTCOMES

  • Removal of sulfur at extremely low levels, what allows for the manufacture of finer irons;
  • Desulfurization rates over 90%;
  • The cast iron is treated with low specific consumption of agents, ensuring more cost-effectiveness, what enables the use of lower-quality raw materials in the Cupola Furnace;
  • Tailor-made treatment time for each process.

2. FOUNDRIES – CAST STEEL TREATMENT

STEEL FOUNDRY OVERVIEW

With the increase in the demand of the automotive and machine industry, the foundries have been serving a highly-demanding market concerning the mechanical properties of cast iron. Stronger, harder products are required to extend the life of components.


TECNOSULFUR SOLUTION

With the purpose of serving refining processes of cast steels, TECNOSULFUR offers a full line of customized sintered synthetic slags, with specific performance in each process. Such products are made of calcium aluminates, calcium and magnesium silicates, pseudo silicates and aluminates, and others.

In addition to its recognized quality, TECNOSULFUR provides its clients with enhanced products which comprehend a precise technical diagnosis, follow-up of the application by specialized technicians and after-sale services, what ensures customer satisfaction.


TECNOSULFUR ADVANTAGES

The main purpose of the TECNOSULFUR line of sintered synthetic slags is to remove undesired elements in the steel (S, P, nonmetallic inclusions) and prevent hydrogen pick-up. They are employed in electric furnaces or ladles with excellent spreadability, performing also other important functions in the steel refining, such as: they protect the hot metal by avoiding its contact with the atmosphere, what minimizes thermal losses, prevent the exposure of the electric arc during the heating and melting in the EAF (Electric Arc Furnace), reducing thus the wear of the refractory lining and the vault; reduce the tap to tap and consequently the consumption of electricity; form a coating in the ladle, what extends the service life of the refractory linings; reduce the flicker effect due to a higher stability of the electric arc and improve the process operating conditions.


OUTCOMES

  • Deep removal of nonmetallic inclusions, what allows for the manufacture of special steels;
  • Significant increase in the service live of ladles;
  • Reduction in the consumption of electrodes;
  • Reduction in the consumption of electricity;
  • Better control of basicity;
  • Tailor-made treatment time for each proces.