不同拼接方式对纳米晶磁芯软磁性能的影响

The Influence of Different Splicing Methods on the Soft Magnetic Properties of Nanocrystalline Magnetic Cores

本研究采用单辊快淬法制得业界特有的、宽度为1 mm的Fe基非晶窄带,经540℃自由退火、固化剂固化、模型机械压制形成条状磁芯。采用TD8220-A软磁直流测试仪和TD8120软磁交流测试仪测试不同拼接方式纳米晶磁芯样品的交、直软磁特性。研究表明:采用斜接口拼接的正方形磁芯直流软磁性能受拼接影响最小,直流软磁性能较好;采用斜接口三角形拼接的磁芯交流软磁性能受拼接影响最小,交流软磁性能较好。磁芯拼接方式是影响磁芯性能重要工艺,研究不同拼接方式在现实应用场景下具有重要意义,本研究结果对纳米晶磁芯不同拼接方式的改进具有重要的参考价值。

This study used a single roll rapid quenching method to obtain an industry-specific, 1 mm wide Fe based amorphous narrow band, which was subjected to 540˚C free annealing, curing agent curing, and model mechanical pressing to form a strip-shaped magnetic core. TD8220-A soft magnetic DC tester and TD8120 soft magnetic AC tester were used to test the AC and DC soft magnetic characteristics of nanocrystalline magnetic core samples with different splicing methods. Research has shown that the DC soft magnetic performance of square magnetic cores with oblique interface splicing is least affected by splicing, and the DC soft magnetic performance is better;the AC soft magnetic performance of magnetic cores using oblique interface triangle splicing is minimally affected by splicing, and the AC soft magnetic performance is better. The splicing method of magnetic cores is an important process that affects the performance of magnetic cores. Studying different splicing methods in practical application scenarios is of great significance. The results of this study have important reference value for improving the splicing methods of nanocrystalline magnetic cores.