Co bubble H2 and N2 partial pressure is very low, it is for these gases, CO bubbles are a small vacuum chamber; small particles adhere to the surface inclusions CO bubbles floating discharge. Steelmaking and other reactions are closely linked. Oxidizing the slag, the oxygen content in the steel so affected by the decarburization reaction. Causing splashes and spills. Oxygen converter, efficient deoxidizer, CO exhaust gas and the pool rises unevenness caused by it is often the main reason for the generation of splash. Favor the formation of slag. Exotherm. The basic task of steelmaking: decarbonization, dephosphorization, desulfurization, deoxidation, Liaoning efficient oxygen scavenger, to remove harmful gases and nonmetallic inclusions, increasing the temperature and adjust the composition, casted. Summarized as "four off" (carbon, oxygen, phosphorus and sulfur), "two out" (to the air and to inclusion) "two adjustments" (composition and temperature) using the main techniques: oxygen, slagging, heating, plus deoxidizer, alloying operations.