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研究了固化剂对非晶纳米晶带材制作的铁芯磁性能的影响规律。结果表明,在不同粘度条件下,固化剂的热膨胀系数随温度的增加而增加,但存在两个转折点,这与其中发生的晶型转变有十分密切的关系;随着固化剂粘度增加,非晶铁芯和纳米晶铁芯的损耗变化率增加,磁导率变化率先增大后减小,这主要是由于在不同粘度下固化剂的膨胀系数不同导致铁芯内应力不同而引起铁芯磁性能的变化。本研究中,非晶和纳米晶铁芯在粘度为90 MPa·s时,损耗及磁导率变化值较低。
The influence of curing agent on the magnetic properties of iron core made from amorphous nanocrystalline ribbons was studied. The results show that under different viscosities, the coefficient of thermal expansion of the curing agent increases with the increase of temperature, but there are two turning points, which are closely related to the crystal transitions occurring therein. With the increase of the viscosity of the curing agent, The change rate of core loss and nanocrystalline core loss increase, the permeability change rate first increases and then decreases, which is mainly due to the difference in the expansion coefficient of the curing agent at different viscosities, which causes the core magnetic properties The change. In this study, the change of loss and permeability of amorphous and nanocrystalline iron core at 90 MPa · s viscosity is low.