Slag Management
The key to higher quality steels and lowering costs with measuring technologies in modern steelmaking.
Why is Slag Management so Important in Steel Manufacturing?
It is well-known that slag has many important functions.
Besides being a barrier for atmospheric gases and reducing thermal losses slag functions as sink for oxides, inclusions and impurities and protects the liquid steel from atmospheric air reoxidation.
Especially for high-quality steel manufacturers, they need to control the slag process to be able to increase steel cleanliness, prevent nozzle clogging during continuous casting, reach exact steel grades, increase desulphurization efficiency, optimize production efficiency and safety, and finally control costs.
Celox SLAC® allows for an instant decision to add slag modifiers by measuring the oxygen activity in the slag.
Celox SLAC® enables fast and accurate slag conditioner calculation to prevent steel reoxidation which leads to many negative effects in secondary metallurgy.
The oxidation state of a typical ladle refining slag is mainly determined by the FeO activity or in some cases by the FeO+MnO activity in the slag. Thus, by measuring the oxygen activity in the slag, the steelmaker can measure FeO or FeO+MnO values in slag.
It allows for:
- Increase steel cleanliness
- Increase desulfurization efficiency
- Prevent nozzle clogging during continuous casting
- Reach exact steel grades
- Fast online FeO or FeO+MnO measurement
- Cost savings for deoxidants
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