固化温度和时间对快淬粘结磁体性能的影响  

Effect of Thermosetting Temperature and Time on Properties of Melt-Spinning Bonded Magnet

作　　者：刘锦云[1] 王克强[1] 陈良辉[1] 查五生[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《稀有金属》2006年第2期138-140,共3页Chinese Journal of Rare Metals

基　　金：四川省教育厅自然科学研究重点项目(2004A110)

摘　　要：用E20环氧树脂加入固化剂顺丁烯二酸酐制备了快淬(Nd,Pr)FeCoZrB粘结磁体,研究了固化温度和时间对粘结磁体抗压强度和磁性能的影响。随固化温度升高,固化时间增加,粘结磁体的交联反应充分进行,抗压强度明显增加;但由于聚合交联反应生成的水腐蚀磁粉,以及高温固化时磁体空隙中的氧气与磁粉发生了氧化,使磁体磁性能显著降低。The melt-spinning （Nd, Pr） FeCoZrB magnets were prepared with epoxy resin and maleic anhydride. The effects of thermosetting temperature and time on compressive strength and magnetic properties of bonded magnets were studied. With the increase of thermosetting temperature and time, the cross linking of bonded magnets reacts completely, leading to significant enhancement of compressive strength. On the contrary, magnet1 magnets erosion b action and oxygen c properties sharply decrease due to y water coming from crosslinking rein the magnets.

关 键 词：金属材料 粘结磁体 固化工艺 抗压强度 磁性能 稀土 

分 类 号：TM273[一般工业技术—材料科学与工程]