CAJ | 학술논문

以梅山 MYF30H 永磁锶铁氧体预烧料为原料，分别采用滚筒球磨机和砂磨机进行球磨制备铁氧体材料。粒度分布、X 射线衍射（XRD）和磁性能分析表明，与滚筒球磨相比，砂磨机磨出的料粉平均粒径较细，且粒度分布比较窄；但砂磨料粉中过细颗粒要多于滚筒球磨料粉，其样品矫顽力明显小于采用滚筒球磨机球磨制备的样品。制备高性能的磁性材料，特别是高矫顽力的磁性材料，预烧料适宜采用滚筒球磨方式进行二次球磨。
이매산 MYF30H 영자송철양체예소료위원료，분별채용곤통구마궤화사마궤진행구마제비철양체재료。립도분포、X 사선연사（XRD）화자성능분석표명，여곤통구마상비，사마궤마출적료분평균립경교세，차립도분포비교착；단사마료분중과세과립요다우곤통구마료분，기양품교완력명현소우채용곤통구마궤구마제비적양품。제비고성능적자성재료，특별시고교완력적자성재료，예소료괄의채용곤통구마방식진행이차구마。
Using Meishan MYF30H pre-sintered Sr-ferrite powder for raw material, secondary fine powders were prepared by roller mill and sand mill, and magnet samples were prepared. Analysis of particle size distribution, XRD and magnetic properties indicated that, the average particle size of sand milled sample is smaller and more uniform than that of roller milled sample. However, more ultrafine particles of sand milling result in lower coercivity compared to that of the sample prepared by roller milling. As a secondary milling method, roller milling is more suitable for manufactureing high coercivity Sr-ferrite materials.