本发明介绍的是一种磁头缝隙形成方法,其特点是:在经镜面研磨的磁头铁芯缝隙部分,预先通过真空镀膜的方法形成极薄(几百A°)的较活性金属,其上再通过真空镀膜或喷涂的手段形成规定厚度的非磁性体。这种磁头缝隙形成方法的优点是:非磁性体与铁芯粘合强度高,重放灵敏度佳,且能减少磁头研磨时出现的裂纹。 The present invention is directed to a method for forming a magnetic head gap which is characterized in that a very thin (hundreds of A °) more active metal is previously formed by vacuum deposition on the mirror-milled head iron core gap, A non-magnetic body of a predetermined thickness is formed by means of vacuum coating or spraying. The advantages of this kind of head gap forming method are that the non-magnetic body has high bonding strength with the iron core, good replay sensitivity, and can reduce the cracks that occur when the head is ground.