Dou Zhihe, Zhang Ting’an, Zhang Hanbo, et al. Preparation of High Ti Ferroalloy with Low Oxygen through Vacuum Reduction Refining[J]. Special Casting & Nonferrous Alloys, 2011,31(5):400-403.
Dou Zhihe, Zhang Ting’an, Zhang Hanbo, et al. Preparation of High Ti Ferroalloy with Low Oxygen through Vacuum Reduction Refining[J]. Special Casting & Nonferrous Alloys, 2011,31(5):400-403.DOI:
Due to the defects such as high oxygen content and more inclusions in the high Ti ferroalloy prepared by the aluminum thermal reduction
the vacuum reduction refining was used to prepare the high Ti ferroalloy with low oxygen based on the high Ti ferroalloy prepared by aluminum thermal method as raw materials.Effects of the refining temperature and refining slag on refining efficiency were investigated
and the high Ti ferroalloy with low oxygen content was characterized by XRD(X-ray diffraction)
SEM(scanning electron microscope) and chemical elemental analysis.The results show that it is necessary to ensure the refining effects with proper refining slag and the higher refining temperature.The reduction refining alloy exhibits uniform and compact structure
and oxygen content in the alloy is dramatically decreased as a result of the apparent elimination of inclusion.High Ti ferroalloy prepared with CaO-Al2O3 as refining slag at 2 000 ℃ is composed of 69.8% Ti
22.55% Fe
2.58%Al
2.02% Si and 2.60% O
meeting the technological requirements of the high quality high Ti ferroalloy.
关键词
低O高钛铁真空还原精炼扫描电镜精炼渣
Keywords
High Ti Ferroalloy with Low OxygenVacuum Reduction RefiningSEM(Scanning Electron Microscope)Refining Slag