| 粉末注射成形烧结永磁铁氧体的脱脂工艺研究 |
| |
| 引用本文： | 李青华. 粉末注射成形烧结永磁铁氧体的脱脂工艺研究[J]. 磁性材料及器件, 2011, 42(3): 38-40,52 |
| |
| 作者姓名： | 李青华 |
| |
| 作者单位： | 北矿磁材科技股份有限公司,北京,100067 |
| |
| 摘 要： | 采用粉末注射成形技术制备了烧结永磁锶铁氧体,并对其溶剂脱脂和热分解脱脂工艺进行初步研究.研究表明:溶剂温度越高,脱脂时间越长,黏合剂中可溶性组元的脱除率越高,溶剂B比溶剂A的脱脂效果更好.对60℃脱脂4h后的坯体进行热脱脂,升温速率为4℃/min,最高脱脂温度为480℃,此时脱脂缺陷最少,保形性最好,磁体的残余碳含量为...
|
| 关 键 词： | 注射成形 烧结锶铁氧体 脱脂 |
Research on debinding technology of sintered Sr-ferrite permanent magnet by powder injection molding |
| |
| LI Qing-hua. Research on debinding technology of sintered Sr-ferrite permanent magnet by powder injection molding[J]. Journal of Magnetic Materials and Devices, 2011, 42(3): 38-40,52 |
| |
| Authors: | LI Qing-hua |
| |
| Affiliation: | LI Qing-hua BGRIMM Magnetic Materials and Technology Co,Ltd,Beijing 100067,China |
| |
| Abstract: | Powder injection molding technology was used for fabricating sintered Sr-ferrite permanent magnets.Solvent extraction and thermal debinding techniques were studied.The removal of the soluble binders increases with increasing debinding temperature and time.The debinding effect in solvent B was better than in solvent A.The sintered Sr-ferrite magnet with remanence of 398mT,coercive force of 236.8 kA/m and maximum energy product of 29.2 kJ/m3,was obtained by solvent extraction of 4 hours at 60℃ and thermal debinding with temperature rise rate of 4 ℃/min and the highest temperature of 480℃.In these conditions debinding defects were much less and the shape retention was better.The density of sintered magnet by PIM was 4.89 g/cm3.The content of residual carbon was 64 ppm,which was greatly lower than the level reported abroad. |
| |
| Keywords: | powder injection molding sintered strontium ferrite debinding |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
