CAJ | 학술논문

以北矿 BMS-12预烧料为基料，首先通过湿压工艺确定出适宜的二次添加剂添加量，在此基础上采用干压法制备各向异性永磁铁氧体材料，分析黏合剂、润滑剂用量及磁粉粒度对磁体性能的影响。实验结果表明，樟脑黏合剂和硬脂酸钙润滑剂的适宜添加量分别为0.6wt%、0.8wt%。在0.85~1.00μm的粉料粒度范围内都可以获得较高的剩磁和矫顽力。得到的典型干压磁体性能：Br=421mT, Hcb=296kA/m, Hcj=360kA/m,(BH)max=33.2kJ/m3，达到TDK 的FB5D性能水平。La-Ca-Sr-Co系干压磁体具有比传统锶永磁铁氧体湿压磁体更高的剩磁和内禀矫顽力。
이북광 BMS-12예소료위기료，수선통과습압공예학정출괄의적이차첨가제첨가량，재차기출상채용간압법제비각향이성영자철양체재료，분석점합제、윤활제용량급자분립도대자체성능적영향。실험결과표명，장뇌점합제화경지산개윤활제적괄의첨가량분별위0.6wt%、0.8wt%。재0.85~1.00μm적분료립도범위내도가이획득교고적잉자화교완력。득도적전형간압자체성능：Br=421mT, Hcb=296kA/m, Hcj=360kA/m,(BH)max=33.2kJ/m3，체도TDK 적FB5D성능수평。La-Ca-Sr-Co계간압자체구유비전통송영자철양체습압자체경고적잉자화내품교완력。
Based on BMS-12 pre-sintered ferrite powders, suitable amount of additives is determined through the wet-pressing process. On this basis, dry-pressed anisotropic permanent ferrite material was prepared and effects of adhesives, lubricants dosage and powder size on magnetic properties analysized. The experimental results show that, the appropriate amount of camphor adhesive and calcium stearate lubricant is 0.6wt% and 0.8wt%, respectively. High remanence and coercivity can be obtained for particle size of 0.85 to 1.00μm. Dry-pressed magnet ferrite was prepared with typical properities of Br=421mT, Hcb=296kA/m, Hcj=360kA/m, (BH)max=33.2kJ/m3, reaching the level of TDK FB5D. Dry-pressed magnet of La-Ca-Sr-Co system has higher remanence and intrinsic coercivity than traditional wet-pressed Sr-ferrite.