| 摘要 |
PURPOSE:To prevent exfoliation due to a secular change and a rise in temperature by clamping a core main body made of a metallic magnetic body with two oxide magnetic bodies which have larger area than said body and is provided with glass having a high fusion point nearby a gap, and charging glass which has a low fusion point in the peripheral gap. CONSTITUTION:The core main body 2 made of the metallic magnetic body is clamped between two auxiliary cores 3 and 4 which have larger area than it and are made of the glass with the high fusion point only nearby the gap 5, and the glass 8 having the low fusion point is fused and charged in the gap formed at the periphery of the auxiliary core 3 and 4 and core main body (in three directions). Thus, the metallic magnetic body (core main body) 2 and oxide magnetic bodies (auxiliary core) 3 and 4 which constitute the magnetic head 1 are assembled completely by glass melt-sticking, so the adhesion surface is never exfoliated owing to a secular change, a rise in temperature, etc., and the magnetic head having high reliability is obtained.
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