利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107610873A 一种面向PFC电感的磁导率等于125的复合软磁粉芯的制备方法 无效 - 驳回

一种面向PFC电感的磁导率等于125的复合软磁粉芯的制备方法
摘要：
本发明公开了一种面向PFC电感的磁导率等于125的复合软磁粉芯的制备方法，通过选用质量占比20.0％～30.0％的铁硅粉和70.0％～80.0％的破碎铁硅铝粉配置出复合磁粉，采用磷酸和B2O3粉末对复合磁粉颗粒进行绝缘包覆处理，制备出了有效磁导率为125的复合软磁粉芯。本发明制备出的复合软磁粉芯在50kHz、100mT条件下的粉芯损耗低于400mW/cm3，100Oe条件下直流偏置性能高于25％。
摘要（英）：

The invention discloses a method for preparing a composite soft magnetic powder core with magnetic conductivity equal to 125 and used for PFC (power factor correction) inductors. The method includes:adopting, by mass, 20.0-30.0% of iron-silicon powder and 70.0%-80.0% of broken iron-silicon-aluminum powder to prepare composite magnetic powder, and adopting phosphoric acid and B2O3 powder for insulation coating of particles of the composite magnetic powder to obtain the composite soft magnetic powder core with effective magnetic conductivity equal to 125. The powder core loss of the composite soft magnetic powder core prepared according to the method is lower than 400mW/cm<3> under conditions of 50kHz and 100mT, and the direct-current bias performance of the composite soft magnetic powder core is higher than 25% under the condition of 100Oe.

0/0