| 摘要 |
PURPOSE:To obtain a single-window type strong magnetic head by forming a metallic layer of Cr or the like on the surface of the inclined part of a winding groove cut in a hemi-body for a core and by forming a film of low m.p. glass similar to low m.p. glass which is allowed to flow in the winding groove on the surface of another hemi-body to be joined. CONSTITUTION:A sputtered SiO2 film 17 and a film 18 of low m.p. glass are formed as gapping materials on a hemi-body 15 for a core. A Cr film 32 is formed by sputtering on only the inclined part 31 of a winding groove 21 cut in another hemi-body 16. The gap surfaces of the hemi-bodies 15, 16 are placed opposite to each other, and they are heated under the same conditions. Low m.p. glass 34 flows well in the laterial direction of the winding groove and the apex part by the heating because the Cr film 32 is formed on only the inclined part 31. The setting of the position of the winding groove is not required, and the butt welding of the hemi-bodies can be easily carried out. |
