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研究了FeSiBCuNb合金纳米晶铁芯固化成型方式在功率变压器上的应用,通过研究24μm和30μm不同厚度带材、固化剂等对变压器铁芯成型前后性能的影响,结果表明,24μm带材可以获得更低的损耗,铁芯固化成型后损耗明显增加,导磁率变化不大,能够满足现有环形护盒铁芯在20kHz,0.5T条件下损耗小于30W/kg的要求,探索出新型的纳米晶功率变压器铁芯成型方式,为高频电源变压器的设计及后期线包的绕制提供了更多的选择方案。
The application of the solidification molding method of FeSiBCuNb alloy nanocrystalline iron core in power transformer was studied. The influence of 24μm and 30μm tapes and curing agent on the performance of transformer iron core before and after forming was studied. The results show that 24μm tape can obtain more Low loss, core loss after solidification molding increased significantly, little change in permeability to meet the existing toroidal core box core loss of less than 30W / kg at 20kHz, 0.5T conditions to explore the new nanocrystalline power Transformer core molding methods for the design of high-frequency power transformers and the winding of the late package provides more options.