Deoxidation of Iron Melt with Immersed MgO-C Porous Tube
スポンサーリンク
概要
- 論文の詳細を見る
In the present study, the deoxidation of iron melt is performed by immersing MgO-C porous tube with and without evacuating its inside. It is found that Mg vapor produced by the reaction between MgO and C of the tube takes part in the deoxidation process. The deoxidation product in a gaseous form (CO) is easily removed from the melt and the product in a solid form (MgO) attaches on the tube surface or floats up to the free surface of the melt. Reducing the internal pressure of the enhances the carbon-oxygen reaction. The amount of removed oxygen from the melt increases with initial oxygen content of the melt. This is because of higher efficiency of reaction between Mg vapor and oxygen in the melt. Initial carbon supply from the porous tube is large and hence, the carbon content in the melt increases rapidly at the initial stage of the reaction. At higher initial oxygen content, intensive CO boiling occurs in the melt. Under this condition the carbon content of the tube does not show an appreciable effect on the deoxidation rate. The oxygen supply by the dissociation of MgO crucible prevents the oxygen content of the melt from decreasing to <20 ppm.
- 社団法人 日本鉄鋼協会の論文
- 1996-11-15
著者
-
HIRASAWA Masahiro
School of Engineering, Nagoya University
-
Sano Masamichi
School Of Engineering Nagoya University
-
AHMADI NAJAFABADI
Graduate School, Nagoya University
-
Ahmadi Najafabadi
Graduate School Nagoya University
-
Hirasawa Masahiro
School Of Engineering Nagoya University
関連論文
- Effect of Initial Oxygen Concentration on the Rate of SiO_2 Inclusion Removal from Molten Cu
- Rate of SiO_2 Inclusion Removal from Molten Cu to Slag under Gas Injection Stirring Condition
- Rate of SiO_2 Inclusion Removal from Molten Cu to Slag under Mechanical Stirring Condition
- Deoxidation of Iron Melt with Immersed MgO-C Porous Tube
- Simultaneous Decarburization and Denitrogenization of Molten Iron with Vacuum Suction Degassing Method
- Decarburization of Iron Melt by an Immersed Al_2O_3-Fe_2O_3 Porous Tube
- Radiocarbon Dating Study of Ancient Iron Artifacts with Accelerator Mass Spectrometry.