温度对33EH高性能烧结钕铁硼永磁体磁性能的影响  

Effect of Temperature on Magnetic Performance of 33EH High Quality Sintered NdFeB Permanent Magnets

作　　者：王凌燕[1] 于旭光[1] 张翼[1] 刘丹[1] 王俊帅[1] 

机构地区：[1]石家庄铁道大学,河北省交通工程材料重点实验室,石家庄050043

出　　处：《特殊钢》2015年第1期45-48,共4页Special Steel

基　　金：河北省自然科学基金重点项目资助(E2012210009);河北省高校重点学科建设项目资助

摘　　要：试验研究了温度（25~200℃）对33EH烧结钕铁硼（/%：27.01Nd,64.75Fe,0.35Al,3.15Dy,1.56Co,2.27Cu,0.90Ga）剩磁、磁感损失等参数的影响。结果表明,随温度升高剩磁呈线性降低,100℃时剩磁下降7.6%,200℃时剩磁下降22%。25~100℃时,随温度升高开路磁感损失约1%,100~200℃,随温度升高,开路磁感损失急剧增加,至200℃时,开路磁感损失达44%,33EH烧结钕铁硼最佳使用温度为≤100℃。The effect of temperature（25 ~ 200 ℃） on magnetic performance of 33 EH sintered NdFeB（/%：27.01 Nd,64.75 Fe,0.35 Al,3.15 Dy,1.56 Co,2.27 Cu,0.90Ga） including residual magnet and magnet loss etc.has been tested and studied.Test results show that with increasing temperature,the residual magnet decreases linearly,at 100℃ the residual magnet decreases by 7.6%and at 200 ℃ the residual magnet decreases by 22%.At 25 ~ 100 ℃ with increasing the temperature,the open-circuit magnet decreases by about 1%,at 100 ~200 ℃ with increasing the temperature,the open-circuit magnet loss increases dramatically,at 200 ℃ the open-circuit magnet decreases by 44%.The optimum service temperature of 33 EH sintered NdFeB permanent magnets is ≤100 ℃.

关 键 词：33EH 烧结钕铁硼永磁体 磁性能 服役温度 

分 类 号：TM273[一般工业技术—材料科学与工程]