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为了摸索和寻求一个既经济又简便的制备磷铁粉的方法,试验确定对磷铁粉的质量要求,以便满足对中、高强度含磷铁基粉末冶金结构材料制品研究及试制生产的需要,对磷铁粉的制备工艺和性能进行了大量试验研究工作。 通过雾化和机械研磨等工艺进行摸索和试验,确定了采用机械干磨法来制备磷铁粉获得了良好的效果。与湿磨工艺相比,干磨法工序可由九道减少为六道,生产周期缩短一半,成本降低50％以上。同时对磷铁粉的成分、粒度及含氧量等质量指标进行了研究,得出粒度为—120目和—200目两种磁铁粉,只要对含磷量加以适当控制,可分别满足中、高强度含磷铁基材料的性能要求。
In order to explore and seek an economical and convenient method for preparing phosphogypsum powder, the quality of the phosphogallite powder was determined experimentally to meet the needs of the research and trial production of medium and high-strength phosphorus-containing iron-based powder metallurgy structural material products, A large amount of experimental research has been carried out on the preparation process and properties of phosphogypsum powder. Through the process of atomization and mechanical grinding to explore and test, it was confirmed that the mechanical dry-grinding method was used to prepare phosphorus iron powder and achieved good results. Compared with the wet grinding process, the dry grinding process can be reduced from nine to six, reducing the production cycle by half and reducing the cost by more than 50%. At the same time, the quality index of phosphorus iron powder, such as composition, particle size and oxygen content, was studied. The results showed that the particle size of -120 mesh and -200 mesh two kinds of magnetic powder, as long as the appropriate control of phosphorus content, High-strength phosphorus-containing iron-based materials performance requirements.