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 ℃.
出处
《特殊钢》
北大核心
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
关键词
33EH
烧结钕铁硼永磁体
磁性能
服役温度
33EH
Sintered NdFeB Permanent Magnets
Magnetic Performance
Service Temperature
