Research status and prospect of preparation of rare earth ferrosilicon alloys
Rare earth ferrosilicon alloy is an indispensable additive,metamorphic agent and nodularizing agent in the foundry industry,with widely application and huge output.At present,there are three preparation methods of rare earth ferrosilicon alloys,among which the carbon-thermal method is the most important production method for pro-ducing rare earth ferrosilicon with the characteristics of high rare earth yield,short process and low production cost.The silicon-thermal method is the main production method in small batch customization and heavy rare earth ferrosil-icon due to its flexible and efficient characteristics.The fusion method is used to produce specific rare earth ferrosili-con alloys with low silicon content.In this paper,the method and principle of carbon-thermal production of rare earth ferrosilicon alloys are emphatically expounded,and the current situation is summarized.A new prospect is put forward from the view of lanthanum-cerium balanced reuse.
NETL
NSTL
万方数据
