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本发明是关于高频用可锻高导磁合金的改进。本发明者们以前在公开特许昭52—10819中提出了在Sendust合金中添加Nb,使之具有可锻性的方法。 Sendust是由3～8％Al、4～11％Si、余为Fe组成的合金,由于在低磁化力下导磁率高,电阻值大,所以适于作高频用的铁心材料,但由于极其硬而脆,所以机械加工很困难。以前提出的专利是添加了0.1～2.0％Nb,由于Nb的添加,使得由3～8％Al、4～8％Si、0.1～2.0％Nb、余为Fe组成
The present invention relates to an improvement of an forged high permeability magnetic alloy for high frequency. The present inventors have previously proposed a method of adding Nb to Sendust alloy so as to make it malleable, as disclosed in Japanese Patent Laid-Open No. Sho 52-10819. Sendust is an alloy composed of 3 to 8% Al, 4 to 11% Si and the balance of Fe. It is suitable as a core material for high-frequency applications due to its high magnetic permeability and high resistance at low magnetizing force. However, Hard and brittle, so machining is difficult. Previously proposed patent is the addition of 0.1-2.0% Nb, due to the addition of Nb, made of 3-8% Al, 4-8% Si, 0.1-2.0% Nb and the balance of Fe